Brother DCP-340CW Service Manual Download

Page: 75 / 406

3-37

Confidential

3.2.3 Sensors and Actuators

This machine uses the following sensors and thermistor.

Sensor Name

Sensor Type

Location

Document front sensor

Photosensor

In the ADF unit

Document rear sensor

Photosensor

In the ADF unit

Scanner open sensor

Mechanical switch

In the rubber keypad in the
control panel ASSY

Paper width sensor

Photosensor

Head thermistor

Thermistor

CR encoder sensor

Photosensor

On the carriage PCB

PF encoder sensor

Photosensor

Registration sensor

Photosensor

On the PF sensor PCB

Purge cam switch

Mechanical switch

On the maintenance unit

Ink cartridge sensors (four)

Photosensor

On the ink cartridge PCB
inside ink refill assembly

Hook switch sensor (MFC640CW)

Photosensor

On the hook switch PCB in
the lower cover

• The document front sensor detects whether there is a document in the ADF.

• The document rear sensor detects the leading and trailing edges of document pages, indicating to

the control circuitry the point at which to start reading and when page scanning is complete.

• The scanner open sensor detects whether the scanner cover (scanner unit) is properly closed.

• The paper width (media) sensor detects the right and left paper edges, as well as the paper width

in near-edge printing.

• The head thermistor detects the temperature of the print engine. According to the sensor

information, the controller adjusts the head driver to compensate for changes in ink viscosity.

• The carriage motor (CR) encoder sensor monitors the head/carriage unit's current position and

speed. An error in the head's travel speed usually indicates a paper jam.

• The paper feed motor (PF) encoder sensor monitors the PF roller rotation angle and speed for

use in optimizing paper feed amount and speed.

• The registration sensor detects the leading and trailing edges of paper for use in determining

registration timing and detecting paper jams.

• The purge cam switch detects the drive positions of the purge cam.

• There are four ink cartridge sensors, one for each color. The sensor actuator inside the ink

cartridge usually blocks the light path to indicate the presence of ink. When ink runs low (near-
empty), the arm moves out of the beam, activating the sensor. The same signal also indicates
whether there is an ink cartridge present.

• The hook switch sensor detects whether the handset is on the handset mount. (MFC640CW)

Summary of Contents for DCP-340CW

Page 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC820CW MFC640CW DCP340CW ...

Page 2: ...opyright Brother 2005 All rights reserved No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher Specifications are subject to change without notice ...

Page 3: ...rstanding the basic principles of operation as well as locating defects for troubleshooting CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR Describes how to transfer data left in the machine to be sent for repair The service personnel should instruct end users to follow the transfer procedure given in this chapter if the machine at the user site cannot print received data due ...

Page 4: ...e location of serial number labels put on some parts and lists the coding information pertaining to the serial numbers Appendix 2 Firmware Installation Provides instructions on how to update firmware stored in the flash ROM on the main PCB or load firmware to a new main PCB from the host PC No hardware replacement is required for updating Appendix 3 Customizing Codes According to Shipping Destinat...

Page 5: ...cess in the event log file This appendix views a sample of the event log file Selecting Start Program Brother MFL Pro Suite model name Installation Diagnostics reads out the event log file This manual describes the models and their versions destined for major countries The specifications and functions are subject to change depending upon each destination ...

Page 6: ...irst and then the power cord from the AC power outlet Do not handle the plug with wet hands Doing this might cause an electrical shock To prevent injuries be careful not to put your hands on the edge of the machine under the scanner cover To prevent injuries be careful not to touch the area shaded in the illustration When moving the machine you must lift it from the base by placing a hand at each ...

Page 7: ...ion device on the AC power line and on the telephone line or unplug the cords during a lightning storm When lifting up the machine hold it from the base Holding the scanning cover scanner unit leaves the machine body inclined disengaging the scanner cover from the machine body or letting the machine body fall IMPORTANT SAFETY INSTRUCTIONS When using your telephone equipment basic safety precaution...

Page 8: ...ing your MFC on the carpet Do not place near heaters air conditioners water chemicals or refrigerators Do not expose the MFC to direct sunlight excessive heat moisture or dust Do not connect your MFC to electrical outlets controlled by wall switches or automatic timers Disruption of power can wipe out information in the MFC s memory Do not connect your MFC to electrical outlets on the same circuit...

Page 9: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...

Page 10: ...ter contains external views and names of components and describes their functions Information about the keys on the control panel is included to help you check operation or make adjustments CONTENTS 1 1 OUTLINE 1 1 1 2 CONTROL PANEL 1 3 1 3 COMPONENTS 1 9 ...

Page 11: ...INE Front view 2 Paper tray 1 Control panel 5 Scanner cover Scanner unit 6 ADF document cover ASSY 4 External telephone line jack 3 Telephone line jack Rear view 9 Jam clear cover 7 USB interface connector 8 LAN cable connector ...

Page 12: ...rnal telephone line jack Plug in the modular plug on the external telephone line here 5 Scanner cover Scanner unit Open to load ink cartridges or remove jammed paper 6 ADF document cover ASSY ADF Load documents originals here Documents will be fed into the machine page by page Document cover Open to place the document original on the scanner glass 7 USB interface connector Connect the USB cable he...

Page 13: ...ne call from Pulse to Tone 2 FAX keys Fax Preview Lets you preview incoming faxes on the LCD Redial Pause Redials the last number you called It also puts a pause in Quick Dial numbers Hook Press before dialing if you want to make sure a fax machine will answer and then press Black Start or Color Start Also press this key after picking up the handset of an external telephone during the F T double p...

Page 14: ...u can turn the machine on or off 9 LCD Liquid Crystal Display Volume keys In Fax mode you can press these keys to adjust the volume Search Speed Dial Lets you look up numbers that are stored in the dialing memory It also lets you dial stored numbers by pressing and a two digit number Press to scroll backward to a menu selection Press to scroll forward to a menu selection or Press to scroll through...

Page 15: ...link if you have new messages Play Record Lets you listen to voice messages stored in memory Also lets you record telephone calls Erase Lets you delete voice messages all fax messages or all messages 2 Telephone keys Microphone Picks up your voice when you speak to another party using Speaker Phone Speaker Phone Lets you speak to another party without lifting the handset Redial Pause Redials the l...

Page 16: ... the ControlCenter2 software Menu Set The same key is used for Menu and Set operations Lets you access the Menu to program and store your settings in the machine In fax mode you can press these keys to adjust the volume Search Speed Dial Lets you look up numbers that are stored in the dialing memory It also lets you dial stored numbers by pressing and a two digit number Press to scroll backward to...

Page 17: ...n black and white Also lets you start a scanning operation in color or black depending on the scanning setting in the ControlCenter2 software 2 Menu keys 5 Color Start Lets you start making copies in full color Also lets you start a scanning operation in color or black depending on the scanning setting in the ControlCenter2 software 6 On Off Menu Lets you access the Menu to program or Press to scr...

Page 18: ...reen to help you set up and use your machine The LCD examples in this guide are for models with a one line display There may be slight differences between the examples provided and models with a two line display 8 Scan 11 Warning LCD Lets you access Scan mode 9 PhotoCapture Lets you access the PhotoCapture Center Turns red when LCD displays an error or an important status message ...

Page 19: ...cover Upper cover Power supply PCB Engine unit Ink refill ASSY Main PCB ASSY Paper tray WLAN PCB MJ PCB Color LCD MJ PS shield box Ink absorber box Handset mount ADF document cover ASSY Scanner cover stopper Scanner cover damper Head carriage unit Handset Hook switch PCB 2 2 2 3 Control panel ASSY 1 Center panel ASSY 1 MFC820CW 2 MFC640CW 3 MFC820CW 640CW ...

Page 20: ...Confidential CHAPTER 2 SPECIFICATIONS ...

Page 21: ...hapter lists the specifications of each model which enables you to make a comparison of different models CONTENTS 2 1 GENERAL 2 1 2 1 1 General Specifications 2 1 2 1 2 Paper Specifications 2 3 2 1 3 Printable Area 2 6 2 2 SPECIFICATIONS LIST 2 7 ...

Page 22: ... Liquid Crystal Display LCD MFC820CW 2 5 inch color MFC640CW DCP340CW 16 characters x 2 lines Operating Environment 50 to 95 F 10 to 35 C Best Print Quality 68 to 91 F 20 to 33 C Power Source 100 to 120 VAC 50 60 Hz U S A Canada 230 VAC 50 60 Hz Europe Asia Power Consumption MFC640CW U S A Canadian models Minimum under 3 5 W Standby 9 5 W or less 25 C Peak 27 W or less MFC640CW European Asian mode...

Page 23: ...tray and document 17 3 x 17 8 x 6 9 inches 440 x 453 x 174 mm stopper opened 14 2 361 mm 14 7 373 mm 17 3 438 mm 6 5 165 mm 17 3 440 mm 13 7 347 mm 17 8 453 mm 6 9 174 mm Weight MFC820CW Machine proper 13 2 lb 6 kg In package 17 6 lb 8 kg U S A Canadian models 18 9 lb 8 6 kg European Asian models MFC640CW Machine proper 13 4 lb 6 1 kg In package 17 6 lb 8 kg U S A Canadian models 18 9 lb 8 6 kg Eu...

Page 24: ...x 14 216 x 356 mm Yes Yes Yes Executive 7 1 4 x 10 1 2 184 x 267 mm Yes JIS B5 7 2 x 10 1 182 x 257 mm Yes A5 5 8 x 8 3 148 x 210 mm Yes Yes A6 4 1 x 5 8 105 x 148 mm Yes Cards Photo 4 x 6 102 x 152 mm Yes Yes Yes Photo L 3 1 2 x 5 89 x 127 mm Yes Photo 2L 5 x 7 127 x 178 mm Yes Yes Index Card 5 x 8 127 x 203 mm Yes Post Card 1 3 9 x 5 8 100 x 148 mm Yes Post Card 2 Double 5 8 x 7 9 148 x 200 mm Y...

Page 25: ...g m2 Up to 0 01 Up to 0 28 mm 20 Index Card Up to 32 lb Up to 120 g m2 Up to 0 006 Up to 0 15 mm 30 Post Card Up to 53 lb Up to 200 g m2 Up to 0 01 Up to 0 23 mm 30 Envelopes Up to 0 02 Up to 0 52 mm 10 Transparencies 10 Up to 50 sheets for Legal size paper 20 lb Up to 100 sheets of 20 lb Paper Capacity of the Output Paper Support Output Paper Support Up to 25 sheets of 20 lb Letter Transparencies...

Page 26: ...at are extremely shiny or highly textured that were previously printed by a printer that cannot be arranged uniformly when stacked that are made with a short grain Do not use envelopes that are of a baggy construction that are embossed have raised writing on them that have clasps on them that are not sharply creased that are preprinted on the inside ...

Page 27: ... 3 4 Cut Sheet Paper Envelopes unprintable area Paper 1 Top 2 Bottom 3 Left 4 Right Cut sheet 0 12 in 0 in 0 12 in 0 in 0 12 in 0 in 0 12 in 0 in Envelopes 0 47 in 0 94 in 0 12 in 0 12 in When you set the Borderless feature to On Printable area depends on the Printer driver settings The figures above are approximate and the printable area may vary depending on the type of cut sheet paper you are u...

Page 28: ... 5 11 7 216 297mm 8 5 11 7 216 297mm Min Output of Auto Cut sheet 3 5 5 0 89 127mm 3 5 5 0 89 127mm 3 5 5 0 89 127mm 3 5 5 0 89 127mm 3 5 5 0 89 127mm 3 5 5 0 89 127mm 3 5 5 0 89 127mm Max Output of Auto Cut sheet 8 5 14 0 216 356mm 8 5 14 0 216 356mm 8 5 14 0 216 356mm 8 5 14 0 216 356mm 8 5 14 0 216 356mm 8 5 14 0 216 356mm 8 5 14 0 216 356mm Sheet Weight Paper tray 64 220 g m2 17 48 lb 64 220 g...

Page 29: ...220 240 V 50 60Hz AC 220 240 V 50 60Hz Power Consumption Peak Minimum Standby Energy Star Compliant USA Only Yes Yes Yes Yes Yes Yes Yes Machine Noise Operating Approx 45dB Best copy mode Approx 45dB Best copy mode Approx 45dB Best copy mode Approx 45dB Best copy mode Approx 45dB Best copy mode Approx 45dB Best copy mode Approx 45dB Best copy mode Total print pages Internal counter In Maintenance ...

Page 30: ...000 pages or 5 years 30 000 pages or 5 years MTBF Mean Time Between Failures 4 000 hours 4 000 hours 4 000 hours 4 000 hours 4 000 hours 4 000 hours 4 000 hours MTTR Mean Time To BE Repaired 30 min 30 min 30 min 30 min 30 min 30 min 30 min TELEPHONE Handset Yes Yes Yes Hook Yes SPK Yes SPK Yes SPK Yes Yes Yes Off Hook Alarm Duplex Speaker Phone Yes Yes Yes Power Failure Phone Power Failure Dialing...

Page 31: ...R A4 LEGA L LTR A4 LEGA L LTR A4 LEGA L Document Scanning 208mm 208mm 208mm 208mm 208mm 208mm Delayed Timer up to 50 B W only Up to 50 B W only Up to 50 B W only Up to 50 B W only Up to 50 B W only Up to 50 B W only Up to 50 B W only Polled Sending type B W only Yes Std Yes Std Secure Yes Std Secure Yes Std Yes Std Secure Yes Std Secure Next Fax Reservation Yes Dual Access Yes Dual Access Yes Dual...

Page 32: ...0 15ppm Mono Color 600x150 dpi 20 15ppm Mono Color 600x150 dpi 20 15ppm Mono Color 600x150 dpi 20 15ppm Mono Color 600x150 dpi 20 15ppm Mono Color 600x150 dpi 20 15ppm Mono Color 600x150 dpi 20 15ppm Mono Color 600x150 dpi Fonts CD Based Yes 35 TrueType Yes 35 TrueType Yes 35 TrueType Yes 35 TrueType Yes 35 TrueType Yes 35 TrueType Yes 35 TrueType Paper Handling Size Paper Tray A4 LTR LGL EXE JISB...

Page 33: ... Yes Up to 99 Yes Up to 99 Yes Up to 99 Yes Up to 99 Yes Up to 99 Multi Copy Sort Yes Yes Yes Yes Yes Yes Yes Reduction Enlargement 25 400 in 1 increments 25 400 in 1 increments 25 400 in 1 increments 25 400 in 1 increments 25 400 in 1 increments 25 400 in 1 increments 25 400 in 1 increments Resolution horizontal x vertical Print Max 600x1200 dpi Scan Max 600x1200 dpi Print Max 600x1200 dpi Scan M...

Page 34: ...work USB PC Fax Protocol RX Class 2 TX PC FAX Driver RX Class 2 TX PC FAX Driver RX Class 2 TX PC FAX Driver RX Class 2 TX PC FAX Driver RX Class 2 TX PC FAX Driver Broadcasting up to 50 up to 50 up to 50 up to 50 up to 50 up to 50 Support OS Version Refer to Application OS Others Web Web Web PHOTO CAPTURE CENTER Acceptable Media Card Size Smart Media 3 3V 4MB 128MB Compact Flash Type 1only N A fo...

Page 35: ...cm 6x4 15x10cm 7x5 18x13cm 8 x6 20x15cm Max Size 4x3 10x8cm 5x3 5 13x9cm 6x4 15x10cm 7x5 18x13cm 8 x6 20x15cm Max Size 4x3 10x8cm 5x3 5 13x9cm 6x4 15x10cm 7x5 18x13cm 8 x6 20x15cm Max Size Borderless Cropping Full Auto Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Media Format DPOF Exif DCF DPOF Exif DCF DPOF Exif DCF DPOF Exif DCF DPOF Exif DCF DPOF Exif DCF DPOF Exif DCF Image Format P...

Page 36: ...ort mDNS FTP TELNET SNMP TFTP Scanner port mDNS FTP TELNET SNMP TFTP Scanner port mDNS FTP TELNET SNMP TFTP Scanner port mDNS FTP TELNET SNMP TFTP Scanner port mDNS FTP TELNET SNMP TFTP Scanner port Network connection Wireless IEEE 802 11b g IEEE 802 11b g IEEE 802 11b g IEEE 802 11b g IEEE 802 11b g IEEE 802 11b g IEEE 802 11b g Wireless Security WEP 128bit SSID 32 chr WPA Personal TKIP WEP 128bi...

Page 37: ...Confidential CHAPTER 3 THEORY OF OPERATION ...

Page 38: ... 2 Printing Mechanism 3 7 3 2 2 1 Paper pulling in registration feeding and ejecting mechanisms 3 7 3 2 2 2 Ink supply and ink jet mechanism 3 10 1 Overview 3 10 2 Features 3 11 3 Head carriage unit 3 12 4 Ink cartridges 3 19 5 Ink refill assembly 3 21 6 Ink supply tubes 3 23 3 2 2 3 Head maintenance mechanism 3 24 1 Maintenance mechanism components 3 24 2 Maintenance unit components 3 24 3 Head c...

Page 39: ...anism Power supply Ink jet printer unit CIS unit CIS motor Head carriage unit Carriage PCB with head flat cables Carriage motor Ink refill ASSY Maintenance unit Host Compact Flash SmartMedia Memory Stick SD card XD card Paper feed motor Speaker Handset ADF unit ADF motor LAN interface LAN WLAN SDAA Backup battery 1 Control panel 2 2 2 3 1 MFC820CW 2 MFC820CW MFC640CW 3 MFC640CW ...

Page 40: ...of the following mechanisms and uses four motors two encoders various sensors and a head thermistor Ink jet printing and head maintenance head cap mechanisms Paper pulling in and registration mechanisms Paper feeding and ejecting mechanisms Viewed from the left Front ...

Page 41: ...ad maintenance mechanism carriage lock head caps purge vent and head wiper See Section 3 2 2 3 Paper feed motor DC motor Printing Mechanism See Section 3 2 2 Carriage drive mechanism See Section 3 2 2 4 Carriage motor DC motor Encoders See Section 3 2 3 Carriage motor CR encoder Paper feed motor PF encoder Sensors See Section 3 2 3 Document front and rear sensors Scanner open sensor Registration s...

Page 42: ...lustration on the next page shows the components making up the ADF document pull in roller document separation roller document feed roller ADF motor and document front and rear sensors For further details on the sensors see Section 3 2 3 ADF White level reference film CIS unit CIS flat cable Scanner base CIS rail CIS idle pulley CIS drive belt CIS drive assembly CIS motor Scanner top cover Scanner...

Page 43: ... support Document cover Pinch rollers Document rear sensor actuator Document guide roller Document feed roller Document separation roller Document front sensor actuator Document pull in roller Document rear sensor Document front sensor Models with ADFs offer two types of scanning ADF scanning and flat bed scanning They automatically switch to the former at the start of a scan operation if the docu...

Page 44: ...unit It then leaves the machine face up onto the document eject support The machine inserts subsequent pages under this one to preserve the document page order 2 Flat bed scanning CIS unit moves under stationary document The user lifts the document cover places a page or open book face down on the glass plate and closes the document cover The CIS drive mechanism details below operates for each sca...

Page 45: ...e viewed from the right Place the recording paper face down in the recording paper tray This paper first proceeds to the rear bends upward heads back toward the front panel passes under the head carriage unit for printing and finally enters the eject tray on top of the recording paper tray Recording paper Front Paper tray Paper ejection roller Platen Idle gears S Paper pull in roller holder Idle g...

Page 46: ...of the paper Registration sensor activation switches the paper feed motor to clockwise rotation to rotate the paper feed roller in the forward direction to feed the paper During this paper feed operation the planetary gear inside the paper pull in roller holder prevents rotational torque from reaching the paper pull in roller The above paper pulling in and feeding operations take place when the he...

Page 47: ...igh resolution precision paper positioning during printing This signal also determines the motor parameters for rapidly and precisely positioning the paper past a gap Fixed speed paper feed This operation rotates the paper feed roller to feed the paper at a constant speed regardless of load fluctuations The primary application is ejecting paper when printing is complete in other words in situation...

Page 48: ...four ink cartridges black yellow cyan and magenta are mounted on the ink refill assembly For further details see 4 Ink cartridges below The ink refill assembly secures the ink cartridges and connects them to the corresponding ink supply tubes Ribs inside the cartridge slots prevent wrong cartridge insertion and color mixups For further details see 5 Ink refill assembly below The ink supply tubes s...

Page 49: ...ubes Leaving too long interval between this priming and actual use however risks air bubbles increased viscosity and other quality issues with the ink in the supply tubes Before using this machine for the first time therefore the user must totally replace the ink supply path contents with fresh ink using an initial purge a repeat of this priming operation The cartridges that ship with the machine ...

Page 50: ...ction line with a bar code giving property data The manufacturer writes this data to the EEPROM on the main PCB incorporating this unit to insure consistent performance without fluctuations These labels appear on the head carriage unit itself and on the lower cover of the machine Replacing the head carriage unit requires writing 12 of the 13 property data digits on the label included with the new ...

Page 51: ...r inks COF This flexible circuit board holds the piezoelectric driver chip Nozzle array head bottom plate Ink spray function The head employs drop on demand ink jet printing Print commands to the drive circuit apply a bias voltage to the layer electrodes on the piezoelectric ceramic surface stretching the elements perpendicular to that surface Drive signals removing this voltage for specific chann...

Page 52: ...3 14 Confidential Front end ASSY Piezoelectric plate Laminated electrode Manifold Damper Nozzle plate A A A A Channel ...

Page 53: ... from pressure changes on the ink Ink pressure fluctuations As the head carriage unit travels inertia means that the ink remains in the same place temporarily raising the pressure in the tubes Air vent unit At regular scheduled intervals this vents any air bubbles that have accumulated in the damper assembly Air vent cap This fits tightly over the air vent unit to allow the negative pressure from ...

Page 54: ...ambers Instead it has a loose film across the bottom of its single chamber This film immediately flexes in and out in response to rises and falls in pressure adjusting the chamber volume to counteract pressure fluctuations in the ink supply tubes Film Color Black This loose film flexes in and out in response to changes in ink pressure Air buffering Liquid ink contains trace amounts of air These mo...

Page 55: ...ve up some of this air The ink pressure fluctuations generated by the piezoelectric ceramic actuators repeatedly expand and contract any air bubbles causing them to gradually grow larger as the ink pressure changes repeatedly expand and contract them The design therefore compensates by allowing the purging flushing of air bubbles during printing to keep the amount of air dissolved in the ink to a ...

Page 56: ...c actuators and thus degrading ink jet performance Bubble High pressure Piezoelectric element Pressure chamber Channel Bubble Without pressure The above illustration shows an example of an extremely large air bubble reaching the print nozzle from the channel ink flow path the dotted line the changes resulting from applying a voltage to the laminated electrode expanding the piezoelectric ceramic ac...

Page 57: ...ir Inks Removing air An earlier page explained how too much air in the ink risks air bubbles degrading ink jet performance The manufacturing process prevents such air bubbles with a step deaeration that removes air from the ink before injection into the cartridge Vacuum packaging then prevents air contamination during shipping and storage Pigment based ink Previous Brother machines used only dye b...

Page 58: ...ssembly has four ink cartridge sensors photosensors of transparent type that monitor the ink levels with sensor arms inside the ink cartridges Attached to one end of the sensor arm is a float When there is ink in the cartridge buoyancy lifts the float rotating the sensor arm about a pivot near the center of the arm to block the light beam to the sensor indicating that there is ink As the ink level...

Page 59: ...3 21 Confidential 5 Ink refill assembly Ink cartridge base Cartridge clamp springs Ink cartridge sensors Ink cartridge joints Ink refill base Ink tube joints Polyurethane foam Ink cartridge base ...

Page 60: ...g its spread and thus reducing the risk of damage to other components Ink refill assembly The cartridge clamp springs force the ink cartridge ink supply ports into close contact with the joint head to prevent ink leakage The ink from the ink cartridges flows along paths in the ink refill base and through connectors into the ink supply tubes As the ink level in an ink cartridge drops the pressure i...

Page 61: ... highly impermeable barrier against air ingress and drying out of the ink during extended periods of nonuse This material is also soft and highly flexible to better withstand the sharp and frequent bending associated with high speed head operation repeatedly over extended periods ...

Page 62: ...les See page 3 27 Removing air bubbles from the print head See page 3 15 Cleaning with the wiper See page 3 31 The ink absorber box absorbs the ink sucked out by purge operations Ink absorber box Head carriage unit Ink supply tubes Ink refill ASSY Ink cartridges Maintenance unit 2 Maintenance unit components Pump switching unit This switches the negative pressure from the tube pump and the atmosph...

Page 63: ...he head nozzles for purge operations to suck up old ink Air vent rods Pushing these up opens the shut off valves inside the air vent unit expelling air trapped in the manifolds Head wiper As the head carriage unit moves this wipes off any ink remaining on the head nozzle surface Head cap holder This moves to the right together with the head carriage unit as the latter returns to its home position ...

Page 64: ...eniscuses The ink remaining inside these spaces seals them See the illustration below This mechanism moves with the head carriage unit When the head carriage unit returns to its home position it presses against the head cap holder in the maintenance unit The lift arms in the maintenance unit raise the head caps fitting them tightly over the head nozzle surface to protect them Head carriage unit He...

Page 65: ...2 2 1 the motor drives the PF roller gear L that rotates the paper feed roller At the right end of the roller left in the illustration because the view is from the rear is the PF roller gear R which always meshes with the clutch gear Paper feed roller Front Purge lever spring Purge bevel gear Purge gear Idle gear L Clutch gear Clutch gear spring PF roller gear R Purge lever Paper feed motor PF rol...

Page 66: ...the maintenance unit transmits the paper feed motor rotation to the bevel gear On the other hand when the head carriage unit moves left from the purge position the tab on the carriage rear panel releases the purge lever allowing a spring to force the purge lever and the clutch gear to the left The purge lever spring is stronger so forces the clutch gear spring back disengaging it from the purge ge...

Page 67: ... that the carriage lock pops out to lock the head carriage unit before purging and pops in before cleaning with the head wiper this lock also secures the head carriage unit during transportation the pump switching unit switches application of the negative pressure from the pump between the black head nozzles the color head nozzles and the air vent rod unit When the purge cam is in the head capping...

Page 68: ...he carriage lock is released pressing the head caps against the print head Purge lever Clutch gear Purge gear engaged with the purge bevel gear Idle gear L Purge cam Carriage lock Maintenance unit Vent rod unit Front 2 Purging Driving the purge cam to the pump switching unit s black or color position reverses the paper feed motor and activates the tube pump producing negative pressure to drain the...

Page 69: ...zles and the air vent rod unit Another position returns all these components to normal atmospheric pressure When the purge cam is in head capping position the carriage lock fits the head caps tightly over the print head and the pump switching unit is opened to the atmosphere The tube pump consists of a pump gear and tube roller As the pump gear rotates the tube roller on its circumference squeezes...

Page 70: ... rods Pushing up the air vent rods opens the shut off valves inside the air vent unit of the head carriage unit Simultaneously adding negative pressure from the tube pump expels air trapped in the manifolds Maintenance unit Clutch gear Purge gear Slide cam for black ink Purge cam Slide cam for color ink Air vent unit Air vent rod ...

Page 71: ...eset purge This purge operation removes any bubbles that have accumulated in the ink supply tubes Black 0 55 mL Color 0 4 mL Black 28 Color 63 5 key Engine setup purge This purge operation refills the ink supply tubes with ink when there is no ink in those tubes Black 3 93 mL Color 2 76 mL Black 202 Color 443 6 key Cartridge replacement purge This purge operation must follow ink cartridge replacem...

Page 72: ... mL Approx 10 5 mL Black ink cartridge 21 5 mL Approx 20 4 mL Initial cartridges that ship with the machine Color ink cartridges 14 2 mL Approx 13 4 mL Ink cartridge lifetimes Print conditions 3 pages day monochrome print 5 duty Ambient temperature 5 to 25 C Ink Cartridge Type Projected Lifetime Black ink cartridge Approx 4 6 months Color ink cartridges Approx 6 9 months ...

Page 73: ...ntroller uses this signal for proportional integration differential PID control ensuring uniform speed The strip s 1 150 dpi markings offer a choice of four speeds to match the print resolution 40 0 33 3 32 0 and 20 0 ips CR encoder strip Idle pulley CR timing belt Carriage motor Carriage motor pulley Paper feed roller Head carriage unit CR guide rail CR support chassis Aging Maintenance mode func...

Page 74: ... the slider and the rib attach the head carriage unit to the CR chassis The rib acts as a pivot for the slider s damping spring pressing the carriage to the rear Slider L has a skew adjustment knob that shifts the slider back and forth adjusting the angle of this backward pressure Rotating the skew adjustment knob tilts the entire head carriage unit thus adjusting the print nozzle vertical angle r...

Page 75: ...anner cover scanner unit is properly closed The paper width media sensor detects the right and left paper edges as well as the paper width in near edge printing The head thermistor detects the temperature of the print engine According to the sensor information the controller adjusts the head driver to compensate for changes in ink viscosity The carriage motor CR encoder sensor monitors the head ca...

Page 76: ...f a light emitting diode and a light sensitive transistor The only exception is the paper width sensor which uses reflective tape The illustration on the next page gives the sensor and actuator locations Actuator s end Light sensitive transistor Light emitting diode ...

Page 77: ...SY Scanner open sensor actuator Scanner open sensor on the rubber keypad CR encoder strip Paper width sensor Head carriage unit Registration sensor actuator Registration sensor PF encoder sensor PF encoder disk PF sensor PCB CR encoder sensor Hook switch actuator Lower cover Hook switch PCB Hook switch sensor MFC640CW Document rear sensor Document front sensor Document rear sensor actuator Documen...

Page 78: ... 2 pin Carriage motor Paper feed motor 12 pin CIS unit 4 pin CIS motor SCANNING INK JET PRINTING PAPER FEEDING 18 pin Color LCD Media 1 SM XD SD MS card Media 2 CF card Line External telephone LAN PC Ink refill ASSY 9 pin EEPROM DC motor driver Stepping motor driver Ink cartridge PCB Ink cartridge sensors Purge cam switch Maintenance unit 10 pin ADF motor ADF unit Document rear sensor Stepping mot...

Page 79: ... pin Hook switch PCB Media 1 SM XD SD MS card Media 2 CF card Line External telephone Ink refill ASSY 9 pin EEPROM DC motor driver Stepping motor driver Ink cartridge PCB Ink cartridge sensors Purge cam switch Maintenance unit 10 pin ADF motor ADF unit Document rear sensor Stepping motor driver 7 pin 5 pin PF sensor PCB PF encoder sensor Registration sensor 7 pin 2 pin 2 pin 1 4 pin Backup battery...

Page 80: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...

Page 81: ...to be sent for repair The service personnel should instruct end users to follow the transfer procedure given in this chapter if the machine at the user site cannot print received data due to the printing mechanism defective End users can transfer received data to another machine to prevent data loss CONTENTS 4 1 TRANSFERRING RECEIVED FAX DATA 4 1 ...

Page 82: ...edure key names enclosed in parentheses apply to the MFC820CW 1 Connect the machine to be repaired that has received data in the memory to the telephone line 2 Switch the machine on 3 Press the Menu Set Menu Black Start 0 5 and 3 keys in this order to access user accessible functions of the maintenance mode The FAX TRANSFER appears on the LCD 4 To check the number of received files press the 1 key...

Page 83: ...e to type the telephone number with the numerical keys No one touch dialing is allowed in this procedure The machine displays the ACCEPTED for approx two seconds and starts dialing to transfer data No station ID will be attached A cover page and end page as shown on the next page will be automatically attached instead ...

Page 84: ...Station ID registered in the sender equipment FAX number of the sender equipment Telephone number of the sender equipment Transfer start date End page sample Job number Total number of pages transferred Station ID registered in the sender equipment FAX number of the sender equipment Telephone number of the sender equipment Error codes ...

Page 85: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...

Page 86: ...rget Component 5 3 Disassembly Flowchart 5 4 5 1 1 Draining the Ink from the Ink Tubes Be sure to perform draining before removing the head carriage unit ink refill ASSY or engine unit 5 5 5 1 2 Jam Clear Cover 5 7 5 1 3 Scanner Cover Scanner Unit 5 8 5 1 4 ADF Document Cover ASSY 5 14 5 1 5 Control Panel ASSY and Scanner Open Sensor Actuator 5 23 5 1 6 Center Panel ASSY and Color LCD MFC820CW 5 2...

Page 87: ...foil When replacing the head carriage unit put on a grounding wrist band and perform the job on a static mat Also take care not to touch the conductor sections on the flat cables 5 Be sure to reinsert self tapping screws correctly if removed 6 Tighten screws to the torque values listed on the next page 7 When connecting or disconnecting cable connectors hold the connector bodies not the wires If t...

Page 88: ...d B M3x6 1 0 20 0 06 2 0 6 Upper cover Taptite bind B M4x12 4 0 69 0 1 7 1 MFC820CW Taptite cup S M3x6 2 0 38 0 1 4 1 Main PCB shield Taptite cup S M3x6 1 0 39 0 1 4 1 Taptite cup B M3x8 2 0 29 0 1 3 1 Main PCB Taptite cup B M3x8 3 0 29 0 1 3 1 Taptite cup S M3x6 1 0 39 0 1 4 1 Main PCB shield frame Screw pan s p washer M3x8 1 0 39 0 1 4 1 MJ PS shield box Taptite cup S M3x6 2 0 39 0 1 4 1 MJ shie...

Page 89: ...dset mount in the lower cover and slide it in the direction of the arrow During disassembly jobs except when removing the ink refill ASSY or engine unit including the maintenance unit leave the head carriage unit and all four ink cartridges in the machine When removing the head carriage unit ink refill ASSY or engine unit you need to remove the ink cartridges and drain the ink from the ink refill ...

Page 90: ...er ASSY Platen Flushing case Registration sensor actuator PF encoder disk Ejection idle gear NOTE 3 NOTE 4 Paper ejection roller Carriage motor 5 1 16 5 1 9 5 1 16 5 1 16 5 1 16 5 1 16 5 1 16 5 1 16 5 1 16 5 1 16 5 1 16 5 1 16 5 1 16 5 1 16 5 1 15 5 1 15 1 5 1 2 5 1 3 5 1 3 5 1 3 5 1 5 5 1 7 5 1 11 5 1 14 5 1 12 5 1 12 5 1 13 5 1 13 5 1 13 5 1 9 5 1 4 5 1 8 5 1 10 5 1 9 Color LCD 5 1 6 WLAN PCB 5 ...

Page 91: ... scanner cover Dummy cartridges Scanner cover Scanner unit Ink cartridges Attach a piece of black adhesive tape 3 Plug the power cord into an electrical outlet MFC640CW 820CW 4 Press the Menu Set Menu and Black Start keys Next press the key four times to make the machine enter the maintenance mode The appears on the LCD TIP FAX models equipped with numerical keypads can enter the maintenance mode ...

Page 92: ...rry out Initial purge with Function code 76 by using the and Set keys as follows Press the key several times to display 7 on the LCD and then press the Set key In the same way enter 6 and 4 For details refer to Chapter 8 Section 8 4 20 Purging Operation 6 Make the head carriage unit travel to the head replacement position with Function code 63 by using the and Set keys as follows Press the key sev...

Page 93: ...5 7 Confidential 5 1 2 Jam Clear Cover 1 Press the two latches inwards and pull the jam clear cover out of the machine Jam clear cover Latch Latch ...

Page 94: ... cover by hand unlatch the scanner cover damper from the scanner cover using an Allen wrench max 30 mm x min 70 mm as shown below and pull it off the scanner cover NOTE If using the Allen wrench cannot remove the scanner cover easily use curved point tweezers taking care not to deform the tip of the tweezers Scanner cover Scanner unit Latch Latch Scanner cover damper Scanner cover Allen wrench Les...

Page 95: ... Insert the tip of a flat screwdriver into the slot two slots on the MFC820CW provided in the front end of the harness cover and slide the harness cover to the front 5 Release the four latches of the CIS flat cable cover and lift it up CIS flat cable cover Scanner cover Harness cover MFC640CW DCP340CW Harness cover MFC820CW Latches Slots Pawls Slot ...

Page 96: ...el PCB Then disconnect the following cables and harnesses from the main PCB the CIS flat cable the CIS motor harness and the ADF harness MFC640CW DCP340CW CIS flat cable Cable guide Grounding wire Scanner cover Scanner unit Press here Panel main harness ADF harness CIS motor harness Main PCB Front X MFC820CW CIS flat cable Cable guide Grounding wire Scanner cover Scanner unit Press here Center pan...

Page 97: ...C640CW DCP340CW or panel center panel harness MFC820CW from the cable guide 8 Open the scanner cover at approx 80 and pull it to the left and off the machine NOTE When replacing the scanner cover remove the ferrite core from the CIS motor harness of the old scanner cover and set it to that of the new scanner cover Wind the CIS motor harness round the ferrite core by one turn CIS flat cable Scanner...

Page 98: ...he scanner cover damper from the scanner cover stopper Scanner cover damper Scanner cover stopper 10 Turn the scanner cover stopper upright and remove it from the upper cover by pressing the front and rear locks Scanner cover stopper Upper cover ...

Page 99: ...er panel main harness Before connecting the panel main harness MFC640CW DCP340CW or center panel main harness MFC820CW to the main PCB press section X on the left edge of the scanner cover outwards to provide enough gap and route the panel main harness through the cable guide on the underside of the scanner cover as shown on page 5 10 After completion of reassembly check the type of the CIS unit s...

Page 100: ...ness ADF harness CIS flat cable Scanner cover Scanner unit Harness spacer gray tube Grounding wire Panel main harness MFC640CW DCP340CW Panel center panel harness MFC820CW 2 Turn the ADF document cover ASSY upright unlatch two hinges from the underside of the scanner cover with a flat screwdriver and lift up the ASSY Slightly turn those hinges and remove them from the ASSY ADF document cover ASSY ...

Page 101: ...ly warp the ADF cover ASSY and remove it from the bosses provided on the front and rear side of the ADF document cover ASSY ADF cover ASSY Boss Boss ADF document cover ASSY Hole Hole 2 Unlatch the document ejection cover from the ADF cover Latch ADF cover Latch Document ejection cover ...

Page 102: ...5 16 Confidential 3 Remove the ADF pull in piece and its spring from the ADF cover ADF cover ADF pull in piece ADF pull in spring 4 Remove the separation pad from the ADF cover Separation pad ADF cover ...

Page 103: ...ill have to be put back in Document ejection films ADF document cover ASSY Document stopper Separating the document cover and the ADF unit 7 Remove the two screws from the ADF unit and unhook the six latches on the ADF unit from the document cover Slide the document cover to the right to release it from the two tabs on the right end of the ADF unit Document cover 6 latches Taptite bind B M4x12 ADF...

Page 104: ...ear and its spring out of the document cover 9 As shown below slide each of the document guides F and R inwards pull down the bottom end slide it inwards further and take it up Document guide R Document guide spring Document guide gear Taptite B M3x6 Spring end Fit the spring end here Document cover Document guide F ...

Page 105: ...r sensor actuators 10 Lightly press the locking arm for each of the document front and rear sensor actuators slide the actuator towards the locking arm and remove it in the direction of the arrow shown below The actuator springs also come off ...

Page 106: ...12 Remove the screw that secures the grounding wire and ADF motor together 13 Remove the screw from the ADF motor and disconnect the ADF harness from the motor 14 Remove the pawl bushing from the front end of the document feed roller shaft and remove the document feed roller gear from the read end Take the document feed roller out of the ADF unit ...

Page 107: ...in roller by lightly pressing the corresponding locking arm and sliding the roller to the rear Remove the document separation roller by lightly pressing the corresponding locking arm and sliding the separation roller gear shaft to the rear The document pull in roller and separation roller are compatible with each other ADF reinforcement plate Taptite cup B M3x10 Document front sensor Document sepa...

Page 108: ...nt rear sensor harness of the ADF harness When installing the ADF document cover ASSY to the scanner cover scanner unit route the ADF harness and grounding wire through the groove provided in the left rear corner of the scanner cover see the illustration at the bottom of page 5 14 After installation route the ADF harness grounding wire and CIS motor harness on the underside of the scanner cover Sa...

Page 109: ...rews from the underside of the scanner cover 3 Pull up the rear end of the control panel ASSY and take it off the scanner cover Cable guides Cable guides Control panel ASSY placed upside down Control panel ASSY placed upside down Panel main harness Square opening Control panel ASSY Scanner cover Scanner unit Taptite cup B M3x10 Ribs Rib Routing the panel main harness on the underside of the contro...

Page 110: ...flat cable gently The illustration given below is based on the MFC640CW Front Locking arm Control panel LCD flat cable LCD Locking arm Front LCD flat cable LCD Control panel PCB Rubber keypad Scanner open sensor actuator Sensor actuator spring Control panel placed upside down 2 X latches 2 Y latches Panel main harness Reassembling Notes Before setting the LCD back to the control panel wipe fingerp...

Page 111: ...rol panel ASSY and pull up the left end of the control panel ASSY Take it off the scanner cover while warping it 4 Remove the actuator arm from the scanner cover Cable guide MFC820CW Cable guides Panel PCB R L harness Panel center panel harness Front Bottom of the control panel ASSY Actuator arm Taptite cup B M3x10 Scanner cover Scanner unit Unlatch this retainer Flat screwdriver Slot Control pane...

Page 112: ...nt Remove the rubber keypad R Remove the scanner open sensor actuator The actuator spring also comes off Front Control panel PCB R Control panel PCB L Rubber keypad R Rubber keypad L Scanner open sensor actuator Sensor actuator spring Control panel placed upside down Y latches Panel center panel harness X latch Search Speed Dial Reassembling Notes When setting the control panel ASSY back to the sc...

Page 113: ...of the right center panel to unlatch it from the upper cover In the same way unlatch the front edge of the left center panel from the upper cover Remove the center panel ASSY Main PCB Lower cover Color LCD Upper cover Releasing the cable protection plate Viewed from the rear LCD flat cable Center panel ASSY Groove provided in the center panel ASSY Cable protection plate Color LCD Unlatch here Tapt...

Page 114: ...er cover Slide the plastic hinge to the left until it latches 4 While pressing the plastic hinge to the left secure it with the screw 5 Connect the LCD flat cable to the main PCB by pressing down its cable film 6 Mount the center panel ASSY onto the upper cover using the following procedure Turn the color LCD upright Align the rear end of the center panel ASSY with the upper cover while pressing d...

Page 115: ...over and lift up the upper cover Taptite bind B M4x12 Upper cover Lower cover Retainer Retainers Retainer Retainer MFC820CW 1 Remove the six screws from the upper cover 2 Release the five retainers provided on the upper cover and lift up the upper cover Taptite bind B M4x12 Upper cover Lower cover Retainer Retainers Retainer Retainer Taptite cup S M3x6 ...

Page 116: ... the head capping position to prevent the ink supply tubes from getting crushed between the upper and lower covers Take care not to deform the PF encoder disk Be careful not to pinch the ink absorber box If pinched the ink absorber box presses down the paper pressure holder shown on page 5 61 resulting in a paper jam ...

Page 117: ... 8 Hook Switch Actuator and Hook Switch PCB MFC640CW 1 Pull the hook switch actuator outwards turn it counterclockwise to release it from the boss and take it up and out of the lower cover The actuator spring also comes off ...

Page 118: ...2 Disconnect the hook switch harness from the main PCB 3 Insert the tip of a flat screwdriver through the square cutout provided in the bottom of the machine release the latch to the front and lift up the hook switch PCB ...

Page 119: ...the job on a static mat Also take care not to touch the conductor sections on the flat cables NOTE To replace the head carriage unit you need to turn the machine on and let the head carriage unit travel to the head replacement position as described in Section 5 1 1 Function code 63 Do not move the head carriage unit by hand when the machine is turned off However if the head carriage unit fails to ...

Page 120: ...e unit has been drained all four ink cartridges have been replaced with protective cartridges the head carriage unit is placed in the head replacement position and the power cord is unplugged from the electrical outlet Removing the head cover 2 Unlatch the head cover from the head carriage unit and pull it up Head cover Head carriage unit Latches Ejection idle gear Head cover Ink supply tubes Latc...

Page 121: ... from the cable clamp 5 Remove the head flat cables from the FFC support NOTE For easier removal first release the left end of the FFC support film from the boss on the FFC support and turn the head flat cables clockwise Flat core Carriage PCB Head carriage unit Carriage head flat cable Opening Cable clamp on the head joint Main PCB Head flat cable 2 19 pin Head flat cable 1 17 pin Carriage PCB FF...

Page 122: ...age PCB to release the rear edge from the two latches provided on the head carriage unit Then lift the carriage PCB up and out of the head carriage unit Flat core Carriage PCB Latches Head carriage unit Carriage head flat cable Cable clamp on the head joint ...

Page 123: ...f the head carriage unit but may be attached to the head joint and put it on a clean vinyl sheet while taking care not to contaminate it NOTE Wipe off the ink remaining on the section where the head joint was mounted with a clean lint free cloth NOTE Wrap the head joint in a clean lint free cloth to prevent ink remaining in the ink supply tubes from leaking and the machine from getting stained wit...

Page 124: ... Move the head carriage unit to the left end of its travel 12 Align the bosses on the head carriage unit with the cutouts in the engine unit and lift the head carriage unit up and off the engine unit NOTE Do not touch the print nozzles the printing ends or ink supply ports to which ink supply tubes are connected of the head carriage unit doing so will not only stain your hands with ink but also da...

Page 125: ...and the machine When you remove the head carriage unit and store it separately from the machine remove the property label from the machine and store it together with the head carriage unit If you replace the head carriage unit attach the property label that comes with the new head carriage unit to the machine as shown below Bosses Viewed from the bottom Property label for head carriage unit Proper...

Page 126: ...rip and PF encoder disk are free of grease If they are stained with grease replace them If you replace the head carriage unit make adjustments specified in Chapter 6 Section 6 2 When mounting the head carriage unit route the head flat cables and attach the FFC support using the following procedure See the illustration on the next page 1 Attach a piece of double sided adhesive tape which is used to...

Page 127: ...flat cable 1 as shown on page 5 35 and secure it to the lower cover with the double sided adhesive tape attached in 1 above 8 Mount the head cover Flat core Carriage PCB Opening Main PCB Head flat cable 2 19 pin Head flat cable 1 17 pin FFC support Lower cover Double sided adhesive tape Cable clamp on the head joint ...

Page 128: ...ply tubes routed on the lower cover from the tube guides NOTE Releasing those tubes makes it easy to release the battery harness from the hook provided on the lower cover since the battery harness is routed beneath those tubes See Section 5 1 17 Routing E 3 Release the battery harness from the hook and remove the backup battery ...

Page 129: ...5 43 Confidential Reassembling Notes Route the battery harness beneath the ink supply tubes as shown below Backup battery Ink supply tubes Cable guides Main PCB Battery harness MFC640CW 820CW ...

Page 130: ...ase up and out of the lower cover NOTE Inside the ink cartridge base is an ink absorber foam that may be stained with ink If it is excessively stained replace the ink refill ASSY 3 Disconnect the ink cartridge purge cam switch harness from the main PCB and the ink cartridge PCB Main PCB Ink refill ASSY Head joint Ink supply tubes Protective cartridges Ink cartridge base Latch Ink cartridge PCB Ink...

Page 131: ...the main PCB untightening screws should be preceded by disconnection of the harnesses and flat cables and at the time of installation connection of the harnesses and flat cables by tightening of screws Observing this sequence prevents harnesses and flat cables from getting crushed or damaged by screws or screwdrivers 1 Remove the media module cover towards you 2 Remove three screws b1 through b3 f...

Page 132: ...pin Speaker harness 2 pin Head flat cable 1 17 pin Head flat cable 2 19 pin MFC640CW DCP340CW Not provided on the DCP340CW Front Main PCB Media 2 Compact Flash Ink cartridge purge switch harness 9 pin USB LAN WLAN PCB harness Head flat cable 2 19 pin Head flat cable 1 17 pin CIS flat cable 12 pin Speaker harness 2 pin PF motor sensor PCB harness 7 pin Carriage motor harness 2 pin Scanner motor har...

Page 133: ...n harness 5 pin Power supply harness 4 pin Media 1 SM XD SD MS card Front Main PCB MJ line harness 2 pin MJ main harness 1 2 pin Battery harness 4 pin ADF harness 10 pin Color LCD flat cable 18 pin 6 Remove four screws three d and one e screws from the main PCB then lift up the PCB 7 Remove screw c from the main PCB shield frame 8 Remove the main PCB film and shield frame NOTE Screw tightening ord...

Page 134: ... of the lower cover Lower cover WLAN PCB Reassembling Notes MFC640CW 820CW European Oceanian Asian models If the main PCB is replaced attach the thermal conductor rubber removed from the old PCB to a new one as specified below MainPCB 0to2mm 0to2mm Thermalconductorrubber Soldered Thethermalconductorrubber shouldnotprotrudefromthe edgeofthePCB Thethermalconductorrubber shouldbeoutofcontactwith thes...

Page 135: ...harness black CIS motor harness and Panel main harness MFC640CW DCP340CW Main PCB Not provided on the DCP340CW If you replace the main PCB also replace the ink absorber box Otherwise drained ink may overflow after long term use If you replace the main PCB you need to make the specified adjustments and updating of settings stored in the flash ROM while referring to Chapter 6 Section 6 3 Before star...

Page 136: ...he DCP340CW 1 Remove the two screws 2 Insert the tip of a flat screwdriver through square cutout x and push boss X inwards to release the MJ PS shield box Cutout x Taptite cup S M3x6 Lower cover MJ PS shield box Power supply harness MJ main harness 1 MJ line harness Boss X Latch Cutout x ...

Page 137: ...lower MJ PS shield MJ line harness 2 pin a b MJ PCB MJ shield c3 c2 c4 c1 Power supply PCB Power supply shield Lower MJ PS shield MJ main harness 1 2 pin MJ main harness MJ line harness Power cord MJ PS shield box Power supply PCB NOTE Tighten c1 through c4 screws in this order a Screw pan washer M3x8DB b and c1 through c4 Taptite cup S M3x6 Reassembling Notes When securing the power supply PCB ti...

Page 138: ...he atmospheric air in tissue paper to prevent drained ink from leaking and the machine from getting stained with leaked ink 2 Lift the ink absorber box up and out of the lower cover NOTE Do not remove the ink absorber box unless it needs to be replaced When replacing it set a new one immediately to prevent the machine from getting stained with drained ink NOTE If the ink absorber box or its surrou...

Page 139: ... to make the machine enter the maintenance mode The appears on the LCD 2 Display the equipment s log with Function code 80 by using the and Set keys as follows Press the key several times to display 8 on the LCD and press the Set key Again press the key several times to display 0 and press the Set key 3 Press the Mono Start key several times to display the purge count on the LCD 4 Reset the purge ...

Page 140: ...1 1 After ink draining be sure to set protective cartridges instead of dummy ones Removing the engine unit 1 Lift the engine unit up and out of the lower cover NOTE When handling the engine unit hold it at the both ends with both hands taking care not to touch the PF encoder disk Do not hold it with one hand at the center particularly at the carriage rail section NOTE Do not place the engine unit ...

Page 141: ... NOTE Take care not to let the springs bounce off Engine unit Purge lever Top of the maintenance unit Clutch gear spring shorter Clutch gear Purge lever shaft Purge lever Purge lever spring longer f e Purge cam switch Maintenance unit Purge gear Idle gears S Idle gear L Latch PF roller gear R Ribs e Taptite cup B M3x8 f Taptite cup S M3x6 Reassembling Note When setting the idle gear L back into pl...

Page 142: ...ke care not to scratch or damage the encoder strip If it becomes dirty wipe it with a soft dry cloth If it is stained with ink replace it Reassembling Note Pass the CR encoder strip through the CR encoder sensor located at the back of the head carriage unit so that the marked end is to the right carriage motor side and the mark points upwards ...

Page 143: ...r 2 Press the locking arm and pull out the paper pull in gear shaft to the right 3 Remove the paper pull in roller holder Paper pull in gear shaft Engine unit Locking arm Paper pull in roller holder Paper pull in gear shaft Viewed from the bottom Paper pull in roller holder ...

Page 144: ...chassis of the engine unit and turn bushing L clockwise viewed from the right At the right end release the lock arm of bushing R from the chassis and turn it clockwise to the horizontal position then remove the paper ejection roller towards you Lock arm of bushing R Lock arm of bushing R Engine unit Lock arm of bushing L Lock arm of bushing L Paper ejection roller ...

Page 145: ...l out the platen towards you CR support chassis CR guide rail Paper feed roller shaft A Edge B Slit b Platen a Reassembling Note Make sure that section a and slit b on the platen are fitted over paper feed roller shaft A and edge B respectively ...

Page 146: ...wheel holder ASSY 6 Release the two latches provided on the star wheel holder ASSY from the CR support chassis and take the ASSY out of the engine unit CR support chassis CR guide rail Star wheel holder ASSY Latches Carriage motor harness ...

Page 147: ...holder to the left and rear The four paper pressure springs also come off Engine unit Paper pressure holder Registration sensor actuator PF sensor PCB PF encoder sensor PF encoder disk Paper pressure holder Registration sensor actuator Registration sensor and its actuator PF encoder sensor Registration sensor Paper pressure springs Engine unit Latch PF sensor PCB PF encoder disk ...

Page 148: ...ssure holder and turn the registration sensor actuator in the direction of the arrow as shown below to release it Hooking the sensor actuator spring Registration sensor actuator Sensor actuator spring Registration sensor actuator Paper pressure holder Sensor actuator spring ...

Page 149: ...5 63 Confidential Removing the flushing case 9 Press the locking pawl from the bottom of the flushing case and slide the case to the right and rear ...

Page 150: ... key four times to make the machine enter the maintenance mode The appears on the LCD 2 Display the equipment s log with Function code 80 by using the and Set keys as follows Press the key several times to display 8 on the LCD and press the Set key Again press the key several times to display 0 and press the Set key 3 Press the Mono Start key several times to display the flushing count on the LCD ...

Page 151: ...5 65 Confidential Removing the carriage motor 10 Release the carriage motor from the engine unit by removing the two screws CR support chassis CR guide rail Screw bind M3x3 Carriage motor ...

Page 152: ... sensor PCB 12 Remove the screw from the PF sensor PCB and release the PCB from the engine unit taking care not to touch the PF encoder disk Ejection idle gear Engine unit PF motor sensor PCB harness PF sensor PCB Registration sensor Screw bind M2 6x8 PF encoder sensor PF encoder disk Paper feed roller ...

Page 153: ...it should be replaced NOTE Once removed the PF encoder disk will become unusable and a new disk will have to be put back in NOTE Remove any adhesive remaining left on the PF roller gear 14 Remove the plastic retaining ring and ejection idle gear PF roller gear L Paper feed roller Engine unit PF encoder disk Ejection idle gear PF motor sensor PCB harness Plastic retaining ring ...

Page 154: ...ngine unit Screw bind M3x3 Paper feed roller Paper feed motor Engine unit PF motor sensor PCB harness To the PF sensor PCB PF roller gear L Reassembling Note When attaching the PF encoder disk to the PF roller gear put on clean gloves to protect the disk surface from dust or fingerprints ...

Page 155: ...upper cover MFC820CW Grounding wire Panel center panel harness ADF harness CIS motor harness Center panel main harness Routing B ADF harness on the ADF unit Document front sensor Routing of the document front sensor harness of the ADF harness ADF unit Front Document rear sensor Routing of the document rear sensor harness of the ADF harness ...

Page 156: ...820CW on the underside of the control panel ASSY MFC640CW Cable guides Control panel ASSY placed upside down Rib DCP340CW Cable guides Control panel ASSY placed upside down Ribs MFC820CW Cable guide Cable guides Front Bottom of the control panel ASSY Panel center panel harness Panel PCB R L harness ...

Page 157: ...5 71 Confidential Routing D Backup battery harness and ink supply tubes Backup battery Ink supply tubes Cable guides Main PCB Battery harness MFC640CW 820CW ...

Page 158: ...ss 4 pin ADF harness 10 pin Power supply harness 4 pin Carriage motor harness 2 pin MJ main harness 1 2 pin MJ line harness 2 pin Speaker harness 2 pin Purge cam switch harness 2 pin Ink cartridge PCB harness 7 pin Ink cartridge purge cam switch harness 9 pin Main PCB WLAN PCB WLAN PCB harness 6 pin CIS flat cable 12 pin CL main harness 11 pin Battery harness 4 pin MFC640CW 820CW Color LCD flat ca...

Page 159: ... harness 9 pin MFC640CW 6 pin DCP340CW CIS motor harness 4 pin WLAN PCB harness 6 pin MJ main harness 1 2 pin Speaker harness 2 pin Not provided on the DCP340CW MFC820CW MJ line harness 2 pin PF motor sensor PCB harness 7 pin Carriage motor harness 2 pin Main PCB Power supply harness 4 pin ADF harness 10 pin Center panel main harness 5 pin CIS motor harness 4 pin WLAN PCB harness 6 pin MJ main har...

Page 160: ... blue Speaker harness red MJ main harness black CIS motor harness and Panel main harness MFC640CW DCP340CW Main PCB Not provided on the DCP340CW Routing G Power cord MJ main harness and MJ line harness in the MJ PS shield box Not provided on the DCP340CW Power supply shield MJ main harness MJ line harness Power cord MJ PS shield box Power supply PCB ...

Page 161: ...ype Manufacturer Lubrication points Lubricant amount Molykote EM 60L Dow Corning Head carriage unit 3 mm dia ball Molykote EM 30LG Dow Corning Document pull in roller Document separation roller 4 mm dia ball Head carriage unit Apply a 3 mm dia ball of grease Molykote EM 60L to each of the following lubrication points ...

Page 162: ...5 76 Confidential Document pull in roller and document separation roller Apply a 4 mm dia ball of grease Molykote EM 30LG to each of the following lubrication points ...

Page 163: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...

Page 164: ...nt in near edge printing 6 17 7 Print out a test pattern 6 20 8 Switch back to standby 6 20 9 Replace the ink cartridges with protective ones 6 20 6 3 IF YOU REPLACE THE MAIN PCB 6 21 1 Load update programs data 6 21 2 Initialize the EEPROM on the main PCB Function code 01 6 21 3 Customize the EEPROM on the main PCB Function code 74 6 22 4 Check the control panel PCB for normal operation Function ...

Page 165: ... counter to zero with the following procedure 6 26 6 5 IF YOU REPLACE THE CONTROL PANEL PCB MODELS WITH BACKLIGHTS 6 27 Adjust the light intensity of the backlight 6 27 6 6 IF YOU REPLACE THE SCANNER COVER SCANNER UNIT 6 27 Check the CIS type and write it to the EEPROM 6 27 ...

Page 166: ...Head carriage unit Engine unit Section 6 2 Main PCB Section 6 3 Ink absorber box Section 6 4 Control panel PCB for models with backlights Section 6 5 INCLINE PRN PFROLL PRN EDGE_CHECK PRN Head carriage unit Engine unit Section 6 2 Main PCB Section 6 3 Ink absorber box Section 6 4 Control panel PCB for models with backlights Section 6 5 NOTE Executables and files listed above should be saved in an ...

Page 167: ...implemented by driver software If you connect any number of machines to your PC therefore the same number of virtual USB devices will be automatically configured on your PC To prevent virtual USB devices from being configured limitlessly use the unique driver installation procedure described below that enables your PC to identify terminals via a single virtual USB device NOTE Once this installatio...

Page 168: ...lowing screen appears indicating the detection of new hardware device by the system Click Next to proceed 7 Select Search for a suitable driver for my device recommended and click Next 8 Select Specify a location and click Next ...

Page 169: ...elect the folder where the copy of the BHL2 Maintenance Printer driver is located or click Browse to specify it then click OK This sample screen is captured on the Windows 2000 desktop 10 Click Next 11 To proceed click Yes ...

Page 170: ...ion of the driver installation if the machine exits the maintenance mode the Found New Hardware Wizard screen in step 6 appears again Click Cancel NOTE To check that the printer driver is successfully installed click Start Settings Printers to call up the Printers window as shown below and confirm that the BHL2 Maintenance Printer icon is displayed ...

Page 171: ...n the PC 3 Plug the machine s power cord into an electrical outlet 4 Press the Menu Set Menu and Black Start Mono Start keys Next press the key four times to make the machine enter the maintenance mode TIP Models equipped with numerical keypads can enter the maintenance mode in the same way as conventional models that is by pressing the Menu Set Menu 2 8 6 and 4 keys in this sequence 5 Connect the...

Page 172: ...t number assigned to the BHL2 Maintenance Printer To confirm the port number follow the instructions below Click Start Settings Printers The Printers window appears as shown below Right click the BHL2 Maintenance Printer icon Click Properties ...

Page 173: ... correct using Function code 68 in Chapter 8 Section 8 4 16 MFC820CW 640CW Press the 6 and 8 keys in this order Then press the 2 5 8 0 keys in this order DCP340CW Enter 6 8 2 5 8 and 0 by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for e...

Page 174: ... new print head with fresh ink DCP340CW 1 Open the scanner unit scanner cover set new ink cartridges into the ink refill ASSY and close the scanner unit 2 Carry out Initial purge with Function code 76 using the steps below See Chapter 8 Section 8 4 20 Enter 7 and 6 by using the and Set keys The machine displays CLEANING ALL on the LCD and enters the purge mode Enter 4 by using the and Set keys The...

Page 175: ...ow appears as shown below 2 Drag and drop the INCLINE PRN icon onto the BHL2 Maintenance Printer icon in the Filedrgs window shown above The Incline Adjust test chart will be printed out 3 Check the printed test patterns and select the one that is the least uneven print Make a note of that pattern number Head Positioning Test Pattern ...

Page 176: ... the numerical code to be entered and then press the Set key Repeat this operation for each numerical code For details refer to Chapter 8 Section 8 4 13 Travel Check of the Head Carriage Unit and Initial Setup Mode 5 Turn the head skew adjuster knob by the number of divisions specified by the pattern number you recorded in step 3 using a spanner If pattern 1 is the least uneven print for example t...

Page 177: ... a sample printout 3 MFC820CW 640CW Press the 5 and 8 keys on the machine DCP340CW Enter 5 and 8 by using the and Set keys on the machine To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code The 1 PF 2 EXIT appears on the LCD 4 MFC820CW 640CW To...

Page 178: ...numerical code to be entered respectively and then press the Set key Repeat this operation for each symbol or numerical code The machine automatically returns to the initial stage of the maintenance mode 7 MFC820CW 640CW Press the 5 and 8 keys on the machine DCP340CW Enter 5 and 8 by using the and Set keys on the machine To enter a numerical code on models having no numerical keypad press the key ...

Page 179: ...6 14 Confidential Paper Feeding Check Patterns for the Paper Feed Roller and Paper Ejection Roller A B ...

Page 180: ...s vertically aligned lines as given on the next page The 600DPI NO 1 8 appears on the LCD 2 Check the printed vertical alignment check patterns for the 600 dpi and find which number line shows full alignment MFC820CW 640CW If the line is other than No 5 enter that line number by using the numerical keys DCP340CW If the line is other than No 5 enter that line number by using the and Set keys The 12...

Page 181: ...6 16 Confidential Vertical Alignment Check Patterns ...

Page 182: ...m If both margins are within the range from 0 9 to 1 1 mm no adjustment is required 4 MFC820CW 640CW If either margin is out of the specified range press the 6 key twice on the machine DCP340CW If either margin is out of the specified range enter 6 twice by using the and Set keys on the machine To enter a numerical code on models having no numerical keypad press the key several times to display th...

Page 183: ... having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code 7 Upon completion of the entry the machine automatically returns to the initial stage of the maintenance mode Go back to step 2 and print out the margin check pattern again 8 Measure the left and right margins on the printout I...

Page 184: ...6 19 Confidential Margin Check Pattern ...

Page 185: ... return to the standby state DCP340CW After completion of the adjustment disconnect the USB cable and then enter 9 twice by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code NOTE Be sure to disconnect the USB cable firs...

Page 186: ...d 2 Press the Black Start key several times until the purge count appears on the LCD 3 Press the 2 7 8 and 3 keys in this order to reset the purge count to zero 4 Press the Stop Exit key to return to the initial stage of the maintenance mode 5 Press the 9 key twice to exit from the maintenance mode DCP340CW 1 Enter 8 and 0 by using the and Set keys NOTE Make a note of the log information displayed...

Page 187: ...e head property information NOTE Make sure that the BHL2 Maintenance Printer driver has been installed to your PC To do it click Start Settings Printers to call up the Printers window and confirm that the BHL2 Maintenance Printer icon shown on the sample window on page 6 10 is displayed If the driver has not been installed install it referring to Section 6 1 2 1 Make sure that your PC is turned of...

Page 188: ...ort number assigned to the BHL2 Maintenance Printer driver To confirm the port number follow the instructions below Click Start Settings Printers The Printers window appears as shown below Right click the BHL2 Maintenance Printer driver icon ...

Page 189: ...ed in Port on the BrUsbSn screen page 6 22 6 In the Serial No BRO box on the BrUsbSn screen page 6 22 type the 9 digit serial number e g M2J012345 printed on the nameplate labeled to the machine as an ID code 7 In the Head Info box type 12 digits e g 776601D00009 out of the 13 digit property code enclosed with asterisks e g J776601D00009 which is printed on the bar code label attached to the head ...

Page 190: ...step 6 Next enter 6 8 2 5 8 and 0 by using the and Set keys and the head property code appears on the LCD Check that the displayed code is that string entered in step 7 To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code 9 If both are OK procee...

Page 191: ...o the initial stage of the maintenance mode 6 Press the 9 key twice to exit from the maintenance mode DCP340CW 1 Press the Menu and Mono Start keys Next press the key four times to make the machine enter the maintenance mode 2 Enter 8 and 0 by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entere...

Page 192: ...B MODELS WITH BACKLIGHTS Adjust the light intensity of the backlight Refer to Chapter 8 Section 8 4 5 6 6 IF YOU REPLACE THE SCANNER COVER SCANNER UNIT Check the CIS type and write it to the EEPROM Refer to Chapter 5 Section 5 1 3 and Chapter 8 Section 8 4 12 ...

Page 193: ...Confidential CHAPTER 7 CLEANING ...

Page 194: ...ures not covered by the User s Guide Before starting any repair work clean the machine as it may solve the problem concerned CONTENTS 7 1 CLEANING THE MAINTENANCE UNIT 7 1 For the cleaning procedures of the head carriage unit scanner and platen refer to the User s Guide ...

Page 195: ...s a head cleaner stick provided as a spare part NOTE Do not use a cotton swab that may leave lint on the cleaned sections Lint left on the maintenance unit will affect the print performance NOTE Use a new Rubycel stick and do not use the used one for any other maintenance units NOTE During the cleaning jobs take care not to touch the head caps or wiper directly by hand or scratch their surfaces Do...

Page 196: ...Confidential CHAPTER 8 MAINTENANCE MODE ...

Page 197: ...OM Parameter Initialization Function code 01 91 8 5 8 4 2 Printout of Scanning Compensation Data Function code 05 8 6 8 4 3 Test Pattern Function code 09 8 8 8 4 4 Firmware Switch Setting and Printout Function codes 10 and 11 8 10 8 4 5 Operational Check of LCD Function code 12 8 15 8 4 6 Operational Check of Control Panel PCB Function code 13 8 17 8 4 7 Sensor Operational Check Function code 32 8...

Page 198: ...ration Function code 76 8 43 8 4 21 Display of the Equipment s Log Function code 80 8 46 8 4 22 Equipment Error Code Indication Function code 82 8 49 8 4 23 Output of Transmission Log to the Telephone Line Function code 87 Not applicable to DCP340CW 8 49 8 4 24 Cancellation of the Pin TX Lock Mode Not applicable to U S A models or DCP340CW 8 50 ...

Page 199: ... To select one of the maintenance mode functions listed in Section 8 2 enter the corresponding 2 digit function code with the numerical keys on the control panel The details of each maintenance mode function are described in Section 8 4 NOTES MFC820CW 640CW To exit from the maintenance mode and switch to standby press the 9 key twice in the initial stage of the maintenance mode DCP340CW To exit fr...

Page 200: ...eding Correction Value 8 4 11 8 25 59 Specifying of CIS Type 8 4 12 8 29 63 Travel Check of Head Carriage Unit and Initial Setup Mode 8 4 13 8 31 65 Alignment of Vertical Print Lines in Monochrome 8 4 14 8 32 66 Margin Adjustment in Near edge Printing 8 4 15 8 35 68 Updating of Property Data 8 4 16 8 38 69 Head Carriage Unit Traveling Speed Check 8 4 17 8 40 74 EEPROM Customizing 8 4 18 8 41 75 Tr...

Page 201: ...ollow the procedure given below MFC820CW 640CW Key names enclosed in parentheses apply to the MFC820CW 1 Press the Menu Set Menu Black Start Menu Set Menu and Black Start keys in this order TIP For the FAX models equipped with numerical keypads you may press the Menu Set Black Start and 0 keys instead in the same way as conventional models The MAINTENANCE 10 appears on the LCD 2 To access function...

Page 202: ...til the desired code appears Then press the Set key For function code 10 access the desired firmware switch according to the operating procedure described in Appendix 4 3 To make the machine return to the standby state press the Stop Exit key When each of the user accessible functions is completed the machine automatically returns to the standby state DCP340CW Black Start key Stop Exit key Menu Se...

Page 203: ... 4 digit This will not be initialized Note that the first digit of the 4 digit code will be initialized to 0 If the code is 1001 for example it will be initialized to 0001 Not provided in the DCP340CW NOTE If you replace the main PCB with the one used for any other machine carry out this procedure and then customize the EEPROM maintenance mode function code 74 in Section 8 4 18 Operating Procedure...

Page 204: ...et keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code The PRINT will appear on the LCD 2 The machine prints out the scanning compensation data list containing the following a Black white data graph b LED light intensity pulse data for gre...

Page 205: ...8 7 Confidential Scanning Compensation Data List a b c d e f i ...

Page 206: ... the initial stage of the maintenance mode DCP340CW Enter 0 and 9 by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code The figure on the next page shows a test pattern which is printed on the PRINT QUALITY CHECK SHEET A...

Page 207: ...8 9 Confidential Test Pattern ...

Page 208: ...X mode setting WSW04 TRANSFER facility setting WSW05 1st dial tone and busy tone detection WSW06 Pause key setting and 2nd dial tone detection WSW07 Dial tone setting 1 WSW08 Dial tone setting 2 WSW09 Protocol definition 1 WSW10 Protocol definition 2 WSW11 Busy tone setting WSW12 Signal detection condition setting WSW13 Modem setting WSW14 AUTO ANS facility setting WSW15 REDIAL facility setting WS...

Page 209: ...lays the WSW00 on the LCD and becomes ready to accept a firmware switch number 2 Enter the desired number from the firmware switch numbers 01 through 53 The following appears on the LCD Selector 1 Selector 8 WSWXX 0 0 0 0 0 0 0 0 3 Use the right and left arrow keys to move the cursor to the selector position to be modified 4 Enter the desired number using the 0 and 1 keys 5 Press the Menu Set OK k...

Page 210: ...e cursor to the selector position to be modified 4 Enter 1 and 0 by using the and Set keys 5 Press the Set key This operation saves the newly entered selector values onto the EEPROM and readies the machine for accepting a firmware switch number 6 Repeat steps 2 through 5 until the modification for the desired firmware switches is completed 7 Press the Stop Exit key to return the machine to the ini...

Page 211: ...40CW Enter 1 twice by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code The PRINTING will appear on the LCD 2 The machine prints out the configuration list as shown in the figure below 3 Upon completion of printing the ...

Page 212: ...8 14 Confidential Configuration List ...

Page 213: ...mode DCP340CW Enter 1 and 2 in the initial stage of the maintenance mode by using the and Set keys The LCD shows the screen given at right 2 Press the Black Start Mono Start key Each time you press the Black Start Mono Start key the LCD cycles through the displays shown at right 3 Press the Stop Exit key in any process of the above display cycle The machine beeps for one second and returns to the ...

Page 214: ...o decrease it press the key DCP340CW Enter or by using the and Set keys NOTE The light intensity can be adjusted to five levels 3 Press the Black Start Mono Start key 5 4 3 2 1 4 No key operation for one minute returns the machine to the initial stage of the maintenance mode To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to ...

Page 215: ...r designated in the illustration shown below The LCD shows the corresponding number in decimal notation each time a key is pressed Check that the displayed number is correct by referring to the illustration below If a key is pressed out of order the machine beeps and displays the INVALID OPERATE on the LCD To return to the status ready to accept key entry for operational check press the Stop Exit ...

Page 216: ...8 18 Confidential DCP340CW 1 2 3 4 6 5 7 11 12 13 8 14 15 9 10 Key Entry Order 2 ...

Page 217: ...640CW Operating Procedure 1 MFC820CW 640CW Press the 3 and 2 keys in this order in the initial stage of the maintenance mode DCP340CW Enter 3 and 2 in the initial stage of the maintenance mode by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operati...

Page 218: ...esent IY Yellow ink cartridge sensor Yellow ink cartridge loaded Yellow ink present IC Cyan ink cartridge sensor Cyan ink cartridge loaded Cyan ink present IM Magenta ink cartridge sensor Magenta ink cartridge loaded Magenta ink present VT Head driver chip temperature sensor Driver chip temperature within the allowable range HK Hook switch On hook state MFC640CW The HK is displayed even on those m...

Page 219: ...press the 1 key The 1 NO OF JOBS appears on the LCD Press the Menu Set Menu key and the number of received files appears just as NO OF JOBS 10 3 To transfer the activity report only press the 2 key The 2 ACTIVITY appears To transfer received files together with the activity report press the 3 key The 3 DOCUMENTS appears Note that if there is no received file the NO DOCUMENTS appears 4 To transfer ...

Page 220: ...Station ID registered in the sender equipment FAX number of the sender equipment Telephone number of the sender equipment Transfer start date End page sample Job number Total number of pages transferred Station ID registered in the sender equipment FAX number of the sender equipment Telephone number of the sender equipment Error codes ...

Page 221: ... value to 11 levels from 5 to 5 mm 4 To increase the correction value press the left arrow key to decrease it press the right arrow key If you press the Stop Exit key the machine returns to the initial stage of the maintenance mode without making change of the correction value 5 Press the Menu Set key OK key on MFC820CW Set key on DCP340CW The ACCEPTED appears on the LCD After one second the machi...

Page 222: ... stage of the maintenance mode by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code The SCANNER AREA SET will appear on the LCD The machine automatically obtains white level data 2 If this operation completes normally t...

Page 223: ...ou need to update the paper feeding correction value according to the procedure given here Operating Procedure 1 Switch on your PC 2 Place the machine in the maintenance mode See Section 8 1 3 Connect the machine to your PC using the USB cable 4 Run FILEDG32 exe in the folder created in Section 6 1 1 The Filedrgs window appears as shown below 5 Drag and drop the PFROLL PRN onto the BHL2 Maintenanc...

Page 224: ...e paper feed roller and head carriage unit are set into place 9 Enter the number of the least uneven check pattern found in step 7 MFC820CW 640CW For example if the number of the least uneven check pattern is 4 press the and 4 keys if 4 press the and 4 keys To enter use the key to enter use the key DCP340CW For example if the number of the least uneven check pattern is 4 enter and 4 if 4 enter and...

Page 225: ... adjust check patterns B on page 8 28 and select the one that is the least uneven print Make a note of that pattern number 13 Enter the number of the least uneven check pattern found in step 11 The machine automatically returns to the initial stage of the maintenance mode ...

Page 226: ...8 28 Confidential Paper Feeding Check Pattern for the Paper Feed Roller and Paper Ejection Roller A B ...

Page 227: ...s the 1 key MFC640CW The 0 30 1 60 2 12 appears on the LCD MFC820CW The 1 WHT 2 FRT 3 MV CIS travel menu appears on the LCD 3 MFC640CW Press the Menu Set key three times Accordingly the LED PWM G PULSE and 1 WHT 2 FRT 3 MV CIS travel menu appear on the LCD in this order 4 Press the 3 and Menu Set OK keys in this order to move the CIS unit to the scanning end position Pressing the 1 or 2 and Menu S...

Page 228: ...e Specify the CIS type MFC820CW 640CW 1 Press the 5 and 9 keys in this order in the initial stage of the maintenance mode The 1 MO 2 CO 3 CHG appears on the LCD 2 Press the 3 key The 0 C 1 RS 2 Q appears on the LCD 3 If the CIS unit is CCI type press the 0 key if it is ROHM type press the 1 key Upon completion of the entry the machine returns to the initial stage of the maintenance mode DCP340CW 1...

Page 229: ...quipment s Log to zero If you disable the initial setup mode the machine displays the NOT INIT on the LCD and returns to the initial stage of the maintenance mode DCP340CW 1 Enter 6 and 3 in the initial stage of the maintenance mode by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and th...

Page 230: ...e entered and then press the Set key Repeat this operation for each numerical code The machine displays the MAINTENANCE 65 on the LCD and prints two sheets of check patterns as shown on page 8 34 On the 1st sheet two sets of vertical alignment check patterns in monochrome are printed for 600 dpi and 1200 dpi each of which consists of 1 through 8 blocks If the vertical alignment is ON 5 block each ...

Page 231: ...d perform the same operation as in step 2 The machine automatically returns to the initial stage of the maintenance mode NOTE If 1 or 8 block is fully aligned so that you press the 1 or 8 key or you enter 1 or 8 in the above procedure then go back to step 1 to confirm that 5 block becomes aligned ...

Page 232: ...8 34 Confidential 1st sheet 2nd sheet Vertical Alignment Check Patterns ...

Page 233: ...nnect the machine to your PC using the USB cable 4 On the PC run FILEDG32 exe in the folder created in Section 6 1 1 The Filedrgs window appears as shown below 5 Drag and drop the EDGE_CHECK PRN onto the BHL2 Maintenance Printer icon in the Filedrgs window shown above The machine displays the RECEIVING DATA on the LCD and prints out the margin check pattern see page 8 37 for a sample printout 6 Me...

Page 234: ...he measured value in units of 0 1 mm multiplied by 10 Example Left 10 Right 13 MFC820CW 640CW In this example press 1 0 Menu Set Menu 1 3 and Menu Set OK keys DCP340CW In this example enter 1 0 1 and 3 by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat thi...

Page 235: ...8 37 Confidential Margin Check Pattern ...

Page 236: ...ore the old property label also with the old part Operating Procedure 1 MFC820CW 640CW Press the 6 and 8 keys in this order in the initial stage of the maintenance mode DCP340CW Enter 6 and 8 in the initial stage of the maintenance mode by using the and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered an...

Page 237: ...ows the INPUT ACCEPTED on the LCD and writes the entered property code into the EEPROM Then it returns to the initial stage of the maintenance mode NOTE If the entered data contains any checksum error the machine beeps shows the INPUT ERROR and then returns to the ready to enter state Go back to step 3 ...

Page 238: ... several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code The machine starts aging the head carriage unit showing the CR AGING on the LCD In each of travel speeds 40 33 3 32 0 and 20 the machine checks whether the maximum and minimum speeds are within the specified range If both are within the range the machine automatically...

Page 239: ...l code to be entered and then press the Set key Repeat this operation for each numerical code The current customizing code e g 0001 in the case of MFC820CW U S A model appears 2 Enter the desired customizing code e g 0002 in the case of MFC820CW Canadian model MFC820CW 640CW To enter letters A through F press the 1 through 6 keys while holding down the key respectively DCP340CW To enter letters A ...

Page 240: ... maintenance mode DCP340CW Enter 7 and 5 keys in the initial stage of the maintenance mode by using and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code The head carriage unit moves to the center of its travel and the PLS OPEN COVER...

Page 241: ... maintenance mode by using and Set keys To enter a numerical code on models having no numerical keypad press the key several times to display the numerical code to be entered and then press the Set key Repeat this operation for each numerical code The machine displays the CLEANING ALL on the LCD and enters the purge mode 2 MFC820CW 640CW Press the or key to select all colors black magenta cyan or ...

Page 242: ... key Reset purge This purge operation removes any bubbles that have accumulated in the ink supply tubes Black 0 55 mL Color 0 4 mL Black 28 Color 63 5 key Engine setup purge This purge operation refills the ink supply tubes with ink when there is no ink in those tubes Black 3 93 mL Color 2 76 mL Black 202 Color 443 6 key Cartridge replacement purge This purge operation must follow ink cartridge re...

Page 243: ...ce mode to call up the machine s log information Function code 80 Refer to Chapter 8 Section 8 4 21 3 Press the Black Start key several times until the purge or flushing count appears on the LCD 4 Press the 2 7 8 and 3 keys in this order to reset the purge or flushing count to zero 5 Press the Stop Exit key to return to the initial stage of the maintenance mode 6 Press the 9 key twice to return to...

Page 244: ...Jam count indicating how many times a paper jam has occurred 19th Total page count indicating how many pages have been printed since the machine was produced 20th PC print page count indicating how many pages the machine has been printed as an output device of the connected PC 21st Color copy page count indicating how many copies in color have been made 22nd Black copy page count indicating how ma...

Page 245: ...t from each of the ink cartridges 1 15th Ink drop count after near empty indicating how many droplets have been jetted out from each of the ink cartridges 1 after the ink cartridge sensor detects near empty 16th Total ink drop count indicating how many droplets the machine has been jetted out from each of the ink cartridges 1 since produced 17th Ink cartridge change count indicating how many times...

Page 246: ...ess the Mono Start key the screen goes back to the calendar clock in step 1 above 3 To stop this operation and return to the machine to the initial stage of the maintenance mode press the Stop Exit key 1 To check each of the four ink cartridges press the Set key Pressing the key cycles through black yellow cyan and magenta 2 When a machine error code is displayed pressing the Set key cycles throug...

Page 247: ...ction code 87 Not applicable to DCP340CW Function This function outputs the transmission log that the machine has stored about the latest transmission to the telephone line It allows the service personnel to receive the transmission log of the user s machine at a remote location and use it for analyzing problems arising in the user s machine Operating Procedure Key names enclosed in parentheses ap...

Page 248: ...to exit from the mode NOTE Carrying out this procedure will lose passwords previously entered but retain FAX messages received in the Pin TX lock mode Operating Procedure Key names enclosed in parentheses apply to the MFC820CW 1 When the PIN TX LOCK is displayed on the LCD press the Menu Set Menu and keys at the same time Within two seconds start to press the 2 7 9 0 and 0 keys The Pin TX lock mod...

Page 249: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...

Page 250: ...ipment Errors 9 1 1 Error messages appearing on the LCD 9 1 2 Error codes contained in MACHINE ERROR X X messages 9 5 9 1 2 Communications Errors 9 19 9 2 TROUBLESHOOTING 9 26 9 2 1 Introduction 9 26 9 2 2 Precautions 9 26 9 2 3 Checking prior to Troubleshooting 9 26 9 2 4 Troubleshooting based on problem type 9 28 1 Control panel problems 9 28 2 Telephone problems 9 28 3 Communications problems 9...

Page 251: ...d resulting problems 9 41 1 ADF mechanism 9 41 2 Scanner mechanism 9 42 3 Head carriage unit drive and purge mechanisms 9 43 4 Print head mechanism 9 44 5 ASF mechanism 9 45 6 Paper feeding mechanism 9 45 7 Speaker 9 45 8 Control panel 9 46 9 PCBs 9 46 10 Adjustments data in the memories 9 47 ...

Page 252: ... of the error codes listed in 2 will appear on the LCD 1 Error messages appearing on the LCD MFC640CW DCP340CW Messages on the LCD Probable Cause Comm Error Poor phone line quality caused a communication error This message does not appear on the DCP340CW Connection Fail You tried to poll a machine that is not in Polled Waiting mode This message does not appear on the DCP340CW Cover is Open The sca...

Page 253: ...o convert it the color fax will be received into memory as a black and white fax No Cartridge This message appears when the power is first turned on by the user after purchase After that it no longer appears No File The media card in the media drive does not contain a JPG file No Paper Fed The machine is out of paper The paper is jammed in the machine No Response Busy The number you dialed does no...

Page 254: ...el the job and clear it from the memory Try to print again Disconnected The other person or other person s fax machine stopped the call Document Jam The document was not inserted or fed properly or the document scanned from the ADF was too long DR Mode in Use The machine is set to Distinctive Ring mode You cannot change the Receive Mode from Manual to another mode Set Distinctive Ring to off High ...

Page 255: ...white fax No Cartridge An ink cartridge is not installed properly No File The media card in the media drive does not contain a JPG file The machine is out of paper or paper is not properly loaded in the paper tray No Paper Fed The paper is jammed in the machine No Response Busy The number you dialed does not answer or is busy Not Registered You tried to access a Speed Dial number that is not progr...

Page 256: ...idge is not set into place 26 Black ink 27 Yellow ink 28 Cyan ink 29 Magenta ink Reload ink cartridges referring to the Owner s Manual Ink cartridge PCB defective Replace the ink refill ASSY 26 27 28 29 Cannot detect ink cartridges Main PCB defective Replace the main PCB 2A 2F Not used Any obstacles on the travel path of the head carriage unit Clean the CR guide rail and CR support chassis Carriag...

Page 257: ...ct in the EEPROM Enter the correct parameter values Head carriage unit broken Replace the head carriage unit Head flat cables and carriage head flat cable not connected correctly Correct those flat cables Head flat cables broken Replace the carriage PCB Carriage head flat cable broken Replace the head carriage unit 44 The temperature of the print head driver has risen abnormally The head driver ch...

Page 258: ...e short Replace the main PCB Switching arm assembly not engaged correctly If the switching arm does not move smoothly clean it Ink cartridge purge switch harness not connected correctly Correct the connection Purge cam switch broken Replace the purge cam switch Gear s on the maintenance unit broken Replace the maintenance unit Paper feed motor broken Replace the paper feed motor 50 51 The purge ca...

Page 259: ...rn to the home position capping position Power supply PCB defective Replace the power supply PCB 58 59 Not used 5A The purge cam stops abnormally when it is in operation 5B The pump stops abnormally during air ventilation 5C The pump stops abnormally during purging operation Purge cam gear broken Abnormal load applied to the purge cam PF encoder disk being in contact with the upper cover and defor...

Page 260: ...expired Replace the head carriage unit No head property data has been entered Enter the head property data 7E No head parameters stored in the EEPROM This code may appear only in the maintenance mode Main PCB defective Replace the main PCB 7F Print engine error Not used Paper smaller than the specified size loaded in the paper tray Load the correct size of paper Platen stained Clean the platen Pap...

Page 261: ...ectly in the paper tray Reload paper Head flat cable connection failure Insert the head flat cables correctly Paper width sensor defective Replace the carriage PCB ASSY 82 Recording paper jam in paper pull in operation The paper width sensor fails to detect the leading edge of paper Main PCB defective Replace the main PCB Paper is not correctly set in the paper tray Reload paper Separation pad dam...

Page 262: ...roken Replace the PF sensor PCB 84 Recording paper jam The registration sensor stays ON after completion of paper ejection operation Main PCB defective Replace the main PCB 85 86 Not used Abnormal load applied to the paper feed roller Check the PF roller gear and its related gears PF encoder disk stained or scratched Replace the PF encoder disk PF encoder sensor defective Replace the PF sensor PCB...

Page 263: ...eplace the paper tray Paper pull in roller holder defective Replace the paper pull in roller holder Purge lever at the right end of the paper feed roller shaft not slid smoothly Clean the purge lever Any one of the gears at the both side of the paper feed roller shaft are damaged Replace the paper feed roller ASSY with a normal part Paper feed motor broken Replace the paper feed motor ASSY 88 Reco...

Page 264: ...he PF related gear s PF encoder disk stained or scratched Replace the PF encoder disk PF encoder sensor defective Replace the PF sensor PCB Paper feed motor defective Replace the paper feed motor 8B The paper feed motor stops suddenly Main PCB defective Replace the main PCB 8C Not used PF encoder disk stained or scratched Replace the PF encoder disk PF encoder disk dislocated Replace the PF encode...

Page 265: ...over scanner unit opened Control panel PCB defective Replace the control panel PCB Document jam Remove the jammed document Document rear sensor actuator caught on the surrounding parts Correct the surrounding parts on which the actuator caught A2 Document length exceeding the scan limitation During scanning 90 cm or longer of a document is detected During document feeding or ejecting 400 cm or lon...

Page 266: ...g the improper CIS type mounted at repair Check the CIS type and write it to the EEPROM by using maintenance mode function code 59 Refer to Chapter 8 Section 8 4 12 A8 AB Not used CIS defective Replace the scanner cover scanner unit AC Less than 50 faulty of white level data Not used Main PCB defective Replace the main PCB AD AE Not used CIS flat cable broken or not connected Correct the cable con...

Page 267: ...canner unit CIS defective Replace the scanner cover scanner unit B4 Scan area right edge detection error Not used White film stained in the scanner unit Replace the scanner cover scanner unit B5 Horizontal scanning edge reduction detection error in scanning area setting Not used B6 Horizontal scanning edge enlargement detection error in scanning area setting Not used B7 A D converter reference vol...

Page 268: ...cover scanner unit Main PCB defective Replace the main PCB BE Scan starting edge detection error White film stained in the scanner unit Replace the scanner cover scanner unit BF CF Not used D Modem error Main PCB defective Replace the main PCB E0 E3 Not used The paper tray cannot feed paper Replace the paper tray Registration sensor actuator unhooked Set the registration sensor actuator into place...

Page 269: ...EA Document removed at phase B Main PCB defective Replace the main PCB EB ED Not used EE Playback IC error Main PCB defective Replace the main PCB EF F2 Not used F3 F5 Internal software error Main PCB defective Replace the main PCB F4 Not used F6 PC interface error Main PCB defective Replace the main PCB F7 Not used F8 Battery harness connection failure Available in the maintenance mode only Batte...

Page 270: ...If a communications error occurs the machine emits an audible alarm intermittent beeping for approximately 4 seconds displays the corresponding error message and prints out the transmission verification report if the machine is in sending operation ...

Page 271: ... detected after dialing 17 07 No response from the calling station in receiving Available in German models only 2 Command reception Code 1 Code 2 Causes 20 01 Unable to detect a flag field 20 02 Carrier was OFF for 200 ms or longer 20 03 Abort detected 1 in succession for 7 bits or more 20 04 Overrun detected 20 05 A frame for 3 seconds or more received 20 06 CRC error in answerback 20 07 Error co...

Page 272: ...tion or its password switch OFF 32 11 Remote terminal not equipped with or not ready for confidential mailbox function 32 12 Remote terminal not equipped with or not ready for relay broadcasting function 32 13 No confidential mail in the remote terminal 32 14 The available memory space of the remote terminal is less than that required for reception of the confidential or relay broad casting instru...

Page 273: ...led while not ready 40 07 No document to send when polled 40 10 Nation code or manufacturer code not coincident 40 13 Polled by any other manufacturers terminal while waiting for secure polling 40 17 Invalid resolution selected 40 20 Invalid full color mode requested 5 Command reception checking the NSF and DIS after transmission of NSS and DCS Code 1 Code 2 Causes 50 01 Vertical resolution capabi...

Page 274: ...01 Password plus lower 4 digits of telephone number not coincident 63 02 Password not coincident 63 03 Polling ID not coincident 7 DCN reception Code 1 Code 2 Causes 74 DCN received 8 TCF transmission reception Code 1 Code 2 Causes 80 01 Fallback impossible ...

Page 275: ...er full during operation except receiving into memory A0 13 Decoding error continued on 500 lines A0 14 Decoding error continued for 10 seconds A0 15 Time out 13 seconds or more for one line transmission A0 16 RTC not found and carrier OFF signal detected for 6 seconds A0 17 RTC found but no command detected for 60 seconds AA 18 Receive buffer full during receiving into memory A0 19 No video data ...

Page 276: ...olling even during turn around transmission due to call reservation B0 04 PC interface error 12 Maintenance mode Code 1 Code 2 Causes E0 01 Failed to detect 1300 Hz signal in burn in operation E0 02 Failed to detect PB signals in burn in operation 13 Equipment error Code 1 Code 2 Causes FF X X Equipment error For X X refer to Section 9 1 1 2 ...

Page 277: ...re handling the PCBs touch a metal portion of the machine to discharge static electricity charged in your body z When repairing the PCBs handle them with extra care After repairing the defective section be sure to check again if the repaired section works correctly Also record the troubleshooting procedure so that it would be of use for future trouble occurrence 9 2 3 Checking prior to Troubleshoo...

Page 278: ... paper is not dampened Ink cartridges 1 Check that all of four ink cartridges are loaded Head carriage unit 1 Check that the carriage head flat cable is connected to the carriage PCB 2 Repeat the head purging operation several times 3 Clean the print surface of the head carriage unit Refer to the User s Guide ...

Page 279: ...820CW Control panel PCB Center panel PCB MFC820CW Rubber keypad Main PCB 3 Center panel inoperative MFC820CW Panel center panel harness or center panel main harness MFC820CW Center panel PCB Main PCB 2 Telephone problems Problem Check 1 No phone call can be made Rubber keypad Control panel PCB Main PCB MJ PCB 2 Speed dialing will not work Ordinary dialing function other than the speed and one touc...

Page 280: ...r 8 Section 8 4 7 Document front sensor actuator Main PCB 2 Document not fed ADF and its related sections ADF motor and its harness Document feed rollers and their related gears Main PCB 3 Document double feeding ADF parts 4 Document jam ADF motor Document rear sensor actuator Main PCB 5 Recording paper not fed PF related gears Main PCB Paper feed motor Paper tray 6 Recording paper jam Paper feedi...

Page 281: ...of Defective Images Completely blank All black Random color Light Dark Straight vertical stripes Blurred vertical stripes White vertical streaks Ink splash Ink splash Print edges not aligned Random missing dots White horizontal streaks Stained leading edge of recording paper Overlapping lines over the whole page Separated lines over the whole page Overlapping lines at the trailing edge of the reco...

Page 282: ... printer Check the ink cartridges If any cartridges have run out of ink replace them Check the connection of the head flat cables on the main PCB If either of those cables is broken or damaged replace it Replace the main PCB Clean the head caps and wiper of the maintenance unit with a Rubycel stick For the cleaning procedure refer to Chapter 7 Section 7 1 CLEANING THE MAINTENANCE UNIT Replace the ...

Page 283: ...peration several times to remove dust or air bubbles from its nozzles If the problem persists replace the head carriage unit Check the following components Ink cartridges Head carriage unit Main PCB Power supply PCB Head property info to be installed to the main PCB from the connected PC Refer to Chapter 8 Section 8 4 16 Maintenance unit 6 Straight or blurred vertical stripes Scanner Check the fol...

Page 284: ...ns or scratches If the CR encoder strip is not hooked properly correct it Correct the positioning error of the head carriage unit Refer to Chapter 6 Section 6 2 3 9 Random missing dots Printer Perform the head purging operation several times to remove dust or air bubbles from its nozzles Check the ink cartridges If any cartridges have run out of ink replace them Check that the carriage head flat c...

Page 285: ...g paper Printer Press the Ink button to perform a head cleaning operation Check that the head carriage unit is set into place 12 Overlapping or separated lines over the whole page Adjust the paper feeding correction value of the paper feed roller Refer to Chapter 6 Section 6 2 4 13 Overlapping or separated lines at the trailing edge of the recording paper Adjust the paper feeding correction value ...

Page 286: ...ick card with the cutout corner leading and facing up Insert a Compact Flash card with the label side facing towards the left Memory cards Formatted Any data in the media Images stored in the media are in EXIF2 0 compliant JPEG file format having extension JPG Main PCB 2 More than one media card cannot be recognized The machine can recognize only a single media card at a time even if it has two ca...

Page 287: ... address has not been changed at both the FAX machine and PC Connection between the WLAN PCB and the main PCB WLAN PCB 9 Others Trouble Action to be taken 1 When the power is turned on when the power cord is plugged into an outlet the scanner makes a grating noise Check the following components CIS flat cable Scanner cover Scanner unit Main PCB ...

Page 288: ...he machine was used Paper with labels attached for example may leave labels inside the machine For foreign materials Fragments of paper that were left behind when previous paper jams occurred Foreign materials such as tacks have found their way into the machine Foreign materials can hinder the paper feed Problems due to machine malfunction Check Possible causes Problems that may result Star wheels...

Page 289: ...es caused by lightning damaged electronic devices on the power supply PCB The head drive voltage will be too low to drive the print head Main PCB Voltage detection circuit defective The head drive voltage becomes too high or low 3 Ink related problems Problems of this nature may arise not only due to machine malfunction but also to the user s actions IMPORTANT In many cases the user fails to set i...

Page 290: ...t will not work CIS unit The CIS unit is weak in identifying colors The quality of print colors in copying operation will be low 4 Auto document feeder ADF malfunction An ADF failure may occur not only due to machine malfunction but also to the user s actions Problems due to the user s actions Check Possible causes Problems that may result Document guides on the upper ADF chute The document guides...

Page 291: ...he spring plates of the ADF parts are deformed Documents will stop halfway through feeding ADF The ADF parts are deformed or worn Two or more sheets of documents will be fed through at once Document rear sensor The document rear sensor is defective The document rear sensor actuator is deformed Documents will stop halfway through feeding or the machine will not be able to recognize them ...

Page 292: ...ent will not be able to be fed Document feed roller Documents will jam Documents will skew Documents will not be able to be fed A2 A3 Separation rubber Two or more sheets of documents will be fed at once Document front sensor actuator Document draw in operation will not start even though documents have been set A3 Document rear sensor actuator Document draw in operation will not start even though ...

Page 293: ...ffset data level error for scanning Gain control data level error for scanning Scan area right left edge detection error Horizontal scanning edge reduction enlargement detection error in scanning area setting White black level data error Scan starting edge detection error Machine error A7 A7 B9 BB BD CIS flat cable Any of the following images may appear on the printout of sent copied or scanned da...

Page 294: ...mage may appear on the printout of sent copied or scanned data 30 31 32 33 CR encoder strip The head carriage unit will not be able to travel normally Any of the following images may appear on the printout of sent copied or scanned data 30 31 32 33 Ink cartridge PCB The INK EMPTY XXX message will appear even though there is ink Even though the ink has run out the INK EMPTY XXX message will not app...

Page 295: ...ent copied or scanned data Purge pump The purge pump will not draw out ink from the head nozzles Purge cam switch The purge cam switch will not detect the purge cam ON OFF timing 50 51 52 4 Print head mechanism Defective component Result Error codes Head carriage unit Any of the following images may appear on the printout of sent copied or scanned data ...

Page 296: ...odes Paper feed roller Paper ejection roller Any of the following images may appear on the printout of sent copied or scanned data PF encoder disk PF encoder sensor The following image may appear on the printout of sent copied or scanned data VWXYZ 7 Speaker Defective component Result Error codes Speaker No key clicks will be heard Abnormal noises will be heard from the machine The telephone will ...

Page 297: ...ing will not be possible The machine will not be able to be turned on Any of the following images may appear on the printout of sent copied or scanned data The telephone will not ring No tone will be detected The machine will not be able to switch to the external telephone MJ PCB No faxes will be able to be sent No phone calls will be able to be made The telephone will not ring No tone will be det...

Page 298: ...EPROM The print quality will deteriorate Chapter 6 Section 6 2 1 Chapter 8 Section 8 4 16 Correction of head positioning error Any of the following images may appear on the printout of sent copied or scanned data Chapter 6 Section 6 2 3 Updating of the paper feeding correction value for the paper feed roller paper ejection roller Any of the following images may appear on the printout of sent copie...

Page 299: ...ustment data setting not performed Result Refer to Error codes Alignment of vertical print lines The following image may appear on the printout of sent copied or scanned data Chapter 6 Section 6 2 5 Chapter 8 Section 8 4 14 ...

Page 300: ...ntial MFC820CW MFC640CW DCP340CW Appendix 1 Serial Numbering System This appendix shows the location of serial number labels put on some parts and lists the coding information pertaining to the serial numbers ...

Page 301: ...r label This section lists the coding information for those serial numbers and property codes 1 Serial number label for the machine itself Product item code Serial number 6 digit Production year Example 5 2005 6 2006 Production month A B C D E F G H J K L M July August September October November December Serial number Barcode Factory January February March April May June Location Serial number lab...

Page 302: ... carriage unit Head property code Serial number 6 digit Production lot number Production year Example 5 2005 6 2006 Production month A B C D E F G H J K L M July August September October November December January February March April May June Location Head property label ...

Page 303: ...actory code Product code Production year Example 05 2005 06 2006 Production month A B C D E F G H J K L M July August September October November December Barcode January February March April May June Production date Example 11 11th 20 20th Location Lot information ...

Page 304: ...tion This appendix provides instructions on how to update firmware stored in the flash ROM on the main PCB or load firmware to a new main PCB from the host PC No hardware replacement is required for updating A2 1 Loading the Update Programs Data to the Flash ROM App 2 1 ...

Page 305: ...rtual USB devices will be automatically configured on your PC To prevent virtual USB devices from being configured limitlessly use the unique driver installation procedure described below that enables your PC to identify terminals via a single virtual USB device NOTE Once this installation procedure is carried out for a PC no more driver software installation will be required for that PC to identi...

Page 306: ...ollowing screen appears indicating the detection of new hardware device by the system Click Next to proceed 7 Select Search for a suitable driver for my device recommended and click Next 8 Select Specify a location and click Next ...

Page 307: ... Select the folder where the copy of the BHL2 Maintenance Printer driver is located or click Browse to specify it then click OK This sample screen is captured on the Windows 2000 desktop 10 Click Next 11 To proceed click Yes ...

Page 308: ...n of the driver installation if the machine exits the maintenance mode the Found New Hardware Wizard screen in step 6 appears again Click Cancel NOTE To check that the printer driver is successfully installed click Start Settings Printers to call up the Printers window as shown below and confirm that the Brother BHL2 Maintenance Printer icon is displayed ...

Page 309: ...PC using a USB cable NOTE Never turn off the machine or PC or unplug the USB cable during loading 1 Run FILEDG32 exe The Filedrgs window will appear as shown below 2 Drag and drop the firmware e g LZ0023_A pjl onto the BHL2 Maintenance Printer icon in the Filedrgs window shown above NOTE Use a firmware file after extracting It is a self extracting file having the extension exe Double click the exe...

Page 310: ...y 8 on the LCD and then press the Set key Again press the key several times to display 0 and press the Set key See Chapter 8 Section 8 4 21 Press the Mono Start key several times to display the firmware version In this example if A0307252244 CF30 appears it means that the loading operation has been successfully finished 4 If loading operation finishes abnormally turn the machine off and on The mac...

Page 311: ...the Number of Copies key plug the power cord into an electrical outlet The machine should show the black and white pattern on the LCD NOTE Never unplug the machine s or PC s power cord or the USB cable during loading 1 Run FILEDG32 exe The Filedrgs window will appear as shown below 2 Drag and drop the firmware e g LZ0023_A upd onto the BHL2 Maintenance Printer icon in the Filedrgs window shown abo...

Page 312: ... to display 8 on the LCD and then press the Set key Again press the key several times to display 0 and press the Set key See Chapter 8 Section 8 4 21 Press the Mono Start key several times to display the firmware version In this example if A0307252244 CF30 appears it means that the loading has been successfully finished 4 If loading finishes abnormally turn the machine off and on The machine autom...

Page 313: ...signed for each destination e g language Those codes are stored in the memory EEPROM mounted on the main PCB If the main PCB is replaced therefore you need to set up the proper customizing code with the machine in the maintenance mode Note Customizing codes customize firmware for individual models enabling the common firmware to be used for various models They come with the firmware data provided ...

Page 314: ... keys are pressed for one minute in the above procedure the machine stops the procedure and returns to the initial stage of the maintenance mode DCP340CW 1 Press the Menu and Mono Start keys Next press the key four times to make the machine enter the maintenance mode The machine beeps for approx one second and displays on the LCD 2 Start customizing the EEPROM with Function code 74 by using the an...

Page 315: ...firmware switches which can be divided into two groups one is for customizing preferences designed for the shipping destination as described in Appendix 3 and the other is for modifying preferences that match the machine to the environmental conditions Use the latter group if the machine malfunctions due to mismatching ...

Page 316: ... 26 WSW24 TAD setting 2 App 4 27 WSW25 TAD setting 3 App 4 28 WSW26 Function setting 4 App 4 29 WSW27 Function setting 5 App 4 30 WSW28 Function setting 6 App 4 31 WSW29 Function setting 7 App 4 32 WSW30 Function setting 8 App 4 33 WSW31 Function setting 9 App 4 34 WSW32 Function setting 10 App 4 35 WSW33 Function setting 11 App 4 36 WSW34 Function setting 12 App 4 37 WSW35 Function setting 13 App...

Page 317: ... dialing mode pulse DP or tone PB dialing 0 PB 1 DP Selectors 1 and 2 Dial pulse generation mode These selectors set the number of pulses to be generated in pulse dialing N Dialing N generates N pulses Dialing 0 generates 10 pulses N 1 Dialing N generates N 1 pulses 10 N Dialing N generates 10 N pulses Selectors 3 and 4 Break time length in pulse dialing These selectors set the break time length i...

Page 318: ...ssion time length No 1 2 0 0 70 ms 0 1 80 ms 1 0 90 ms 1 1 100 ms 3 4 Min pause in tone dialing No 3 4 0 0 70 ms 0 1 80 ms 1 0 90 ms 1 1 140 ms 5 8 Attenuator for pseudo ring backtone to the line selectable in the range of 0 15 dB in 1 dB increments 0 0 dB 1 8 dB 0 0 dB 1 4 dB 0 0 dB 1 2 dB 0 0 dB 1 1 dB Selectors 1 through 4 Tone signal transmission time length and Min pause in tone dialing These...

Page 319: ...rs 2 through 4 6 and 7 are not applicable where no PABX is installed Selectors 1 and 5 CNG detection when sharing a modular wall socket with a telephone These selectors determine whether or not the machine detects a CNG signal when a line is connected to a telephone sharing a modular wall socket with the machine Upon detection of CNG signals by the number of cycles specified by these selectors the...

Page 320: ...ding No 2 3 0 0 350 and 440 Hz A 0 1 440 and 480 Hz B 1 0 1 1 4 Dual tone detection sensitivity in ICM recording 0 Normal 1 High 5 Not used 6 8 Break time length for flash function No 6 7 8 No 6 7 8 0 0 0 80 ms 1 0 1 250 ms 0 0 1 100 ms 1 1 0 500 ms 0 1 0 110 ms 1 1 1 700 ms 0 1 1 120 ms 1 0 0 200 ms NOTE Selectors 1 and 5 through 8 are not applicable in those countries where no transfer facility ...

Page 321: ...Setting and Specifications 1 3 1st dial tone detection No 1 2 3 0 0 0 3 5 sec WAIT 0 0 1 7 0 sec WAIT 0 1 0 10 5 sec WAIT 0 1 1 14 0 sec WAIT 1 0 0 17 5 sec WAIT 1 0 1 21 0 sec WAIT 1 1 0 2 5 sec WAIT 1 1 1 Detection Without WAIT 4 Max pause time allowable for remote ID code detection 0 2 seconds 1 1 second 5 6 Busy tone detection in auto matic sending mode No 5 6 0 0 No detection 0 1 Detection on...

Page 322: ...ode detection This selector sets the maximum pause time allowable for detecting the second digit of a remote ID code after detection of the first digit in remote reception If selector 4 is set to 0 2 seconds for instance only a remote ID code whose second digit is detected within 2 seconds after detection of the first digit will become effective so as to activate the remote function Selectors 5 an...

Page 323: ...e dialing DP system 1 0 1 2nd dial tone detection 1 1 1 both in DP and push button PB dialing system 4 6 Detection of international tone No 4 5 6 0 0 0 50 ms 0 0 1 250 ms 0 1 0 500 ms 0 1 1 620 ms 1 0 0 800 ms 1 0 1 1 5 sec 1 1 0 2 0 sec 1 1 1 2 5 sec 7 No of 2nd dial tone detection cycles 0 1 cycle 1 2 cycles 8 Allowable instantaneous interrupt during reception of 2nd dial tone 0 30 ms 1 50 ms NO...

Page 324: ... seconds When these selectors are set to 1 1 1 If you press the Pause key the machine will first wait for the 2nd dial tone to be sent via the communications line regardless of pulse dialing or tone dialing After that pressing the Pause key will cause the machine to insert a WAIT of 3 5 seconds In those countries where no dial tone detection function is supported setting these selectors to 1 0 1 1...

Page 325: ...ion is supported e g U S A NOTE Selector 3 is not applicable to those models having no loop current detection function Selectors 1 and 2 Dial tone frequency band control These selectors set the frequency band for the 1st dial tone and busy tone before dialing to be detected This setting is effective only when selectors 1 through 3 of WSW05 are set to 1 1 1 Selector 3 Line current detection Not use...

Page 326: ... 0 33 dBm 1 0 1 36 dBm 1 1 0 39 dBm 1 1 1 42 dBm NOTE The WSW08 is not applicable in those countries where no dial tone detection is supported e g U S A Selectors 1 through 3 1st dial tone detection time length Upon detection of the 1st dial tone for the time length set by these selectors the machine starts dialing This setting is effective only when selectors 1 through 3 of WSW05 are set to 1 1 1...

Page 327: ...ks The error correction mode ECM is a facsimile transmission manner in which the machine divides a message into frames for transmission so that if any data error occurs on the transmission line the machine retransmits only those frames containing the error data Selector 2 Use of non standard commands If this selector is set to 0 the machine can use non standard commands the machine s native mode c...

Page 328: ...ial digit to CML ON This selector sets the time length from when the machine transmits the last dial digit until the CML relay comes on Selector 3 Time length from CML ON to CNG transmission This selector sets the time length until the machine transmits a CNG after it turns on the CML relay Selector 4 Time length from CML ON to CED transmission This selector sets the time length until the machine ...

Page 329: ... not applicable in those countries where no busy tone detection is supported NOTE The setting of WSW11 is effective only when selectors 5 and 6 of WSW05 are set to 0 1 or 1 1 Busy tone detection Selectors 1 and 2 Busy tone frequency band control These selectors set the frequency band for busy tone to be detected Selectors 3 through 8 ON OFF time length ranges for busy tone These selectors set the ...

Page 330: ...ax detection period for incoming calling signal CI being OFF If the machine detects the OFF state of a CI signal for the period greater than the value set by selectors 1 and 2 and less than the value set by selectors 3 and 4 it interprets the CI signal as OFF Selectors 5 and 6 Min detection period required for acknowledging incoming calling signal CI as ON These selectors set the period required t...

Page 331: ...hese selectors according to the distance from the telephone switchboard to the machine Selectors 3 and 4 Reception level These selectors set the optimum receive signal level Selectors 5 through 8 Modem attenuator These selectors are used to adjust the transmitting level attenuation of the modem when the reception level at the remote station is improper due to line loss This function applies for G3...

Page 332: ...s 1 0 0 0 2 to 3 times 1 0 0 1 2 to 4 times 1 0 1 0 2 to 5 times 1 0 1 1 2 to 6 times 1 1 0 0 1 to 10 times 1 1 0 1 2 to 10 times 1 1 1 0 3 to 5 times 1 1 1 1 4 to 10 times Selectors 1 through 4 Frequency band selection for incoming calling signal CI These selectors are used to select the frequency band of CI for activating the AUTO ANS facility In the French models if the user sets the PBX to OFF...

Page 333: ... CRP option 0 Disable 1 Enable Selectors 1 through 6 Redial interval and No of redialings The machine redials by the number of times set by selectors 3 through 6 at intervals set by selectors 1 and 2 Selector 8 CRP option If a command error occurs in the machine calling station the machine usually waits for three seconds and then makes a retry three times This CRP option is a request command that ...

Page 334: ...equipped with ADF units Selector 2 ITU T CCITT superfine recommendation If this selector is set to 1 the machine communicates in ITU T CCITT recommended superfine mode 15 4 lines mm If it is set to 0 it communicates in native superfine mode Selector 7 Max document length limitation This selector is used to select the maximum length of a document to be sent Selector 8 Stop key pressed during recept...

Page 335: ... These selectors activate or deactivate the alarm function which sounds an alarm when the communication is completed with the handset being off the hook Selector 5 Calendar clock type If this selector is set to 0 USA the MM DD YY hh mm format applies if it is set to 1 Europe the DD MM YY hh mm format applies DD is the day MM is the month YY is the last two digits of the year hh is the hour and mm ...

Page 336: ...called stations Selectors 2 and 3 Detection enabled time for CNG or no tone After the line is connected via the external telephone or by picking up the handset of the machine the machine can detect a CNG signal or no tone for the time length specified by these selectors The setting specified by these selectors becomes effective only when selector 8 of WSW20 is set to 1 Selector 6 Registration of s...

Page 337: ...e With the first transmission speed choice specified by selectors 1 through 3 the machine attempts to establish the transmission link via the MODEM If the establishment fails the machine automatically steps down to the next lowest speed and attempts to establish the transmission link again The machine repeats this sequence while stepping down the transmission speed to the last choice specified by ...

Page 338: ...by this selector takes effect only when the Overseas Mode is set to ON Selectors 2 and 3 Overseas communications mode These selectors should be used if the machine malfunctions in overseas communications According to the communications error state select the signal specifications Setting selector 2 to 1 allows the machine to use 1100 Hz CED signal instead of 2100 Hz in receiving operation This pre...

Page 339: ...ry after the message transfer 0 Yes 1 No NOTE Selectors 1 through 5 are applicable to models equipped with ICM recorders NOTE Selectors 6 and 7 are applicable to models with internal TADs NOTE Selector 8 is applicable to models equipped with TADs Selectors 1 through 5 Max waiting time for voice signal In the TAD mode the machine waits for voice signal for the time length specified by these selecto...

Page 340: ...ough 8 are applicable to the Chinese Taiwanese and Asian models only Selector 3 Call Waiting Caller ID Setting this selector to 0 allows the user to decide whether or not to interrupt the current call when a new call comes in If Call Waiting Caller ID service is available in the area and the user subscribes to it he she can see information about his her incoming call on the LCD Selectors 5 through...

Page 341: ...is detected If it is set to 1 the called station starts counting zeros upon detection of 10 ms successive zeros 50 ms after the head of a series of zeros is detected In this case if the detection of 10 ms successive zeros is too late the data counting period will become less than 1 0 second making the called station judge the line condition unacceptable Selectors 2 and 3 Allowable training error r...

Page 342: ...d 2 Maximum OGM recording time These selectors set the allowable maximum recording time for an OGM Selectors 3 and 4 Time length from CML ON to start of pseudo ring backtone transmission These selectors set the length of time from CML ON up to the start of pseudo ring backtone transmission In models with OGM facilities the settings made by these selectors also apply to the length of time from CML ...

Page 343: ...ec 0 0 1 4 sec 0 1 0 6 sec 0 1 1 8 sec 1 0 0 10 sec 1 0 1 12 sec 1 1 0 14 sec 1 1 1 16 sec 8 Not used NOTE Selectors 5 through 7 are applicable to the U S A models only Selectors 5 through 7 Pause between paging number and PIN These selectors set the pause time between a telephone number being paged and PIN personal identification number for the paging feature ...

Page 344: ...omplete and then starts dialing This enables the machine to list the total number of pages in the header of the facsimile message Selectors 4 and 5 No of CNG cycles to be detected when the line is connected via the external telephone except in the external TAD mode or via the built in telephone The machine interprets a CNG as an effective signal if it detects the CNG by the number of cycles specif...

Page 345: ...stinctive ringing pattern Not used If this selector is set to 1 the machine detects only the number of rings if it is set to 0 the machine detects the number of rings and the ringing time length to compare the detected ringing pattern with the registered distinctive one Selector 6 Recording quality This selector determines the recording quality for the OGM and ICM Selecting 1 High increases the qu...

Page 346: ...3 dB 1 0 0 0 dB 1 0 1 1 dB 1 1 0 2 dB 1 1 1 3 dB 4 6 Transmission level of DTMF low band frequency signal No 4 5 6 0 0 0 0 dB 0 0 1 1 dB 0 1 0 2 dB 0 1 1 3 dB 1 0 0 0 dB 1 0 1 1 dB 1 1 0 2 dB 1 1 1 3 dB 7 8 Not used Selectors 1 through 6 Transmission level of DTMF high low band frequency signal These selectors are intended for the manufacturer who tests the machine for the Standard Never access th...

Page 347: ...ontrol in pulse dialing 0 OFF 1 ON 8 Prompt beep when the memory area for the activity report becomes full 0 No 1 Yes NOTE Selectors 1 through 6 are applicable to models equipped with built in TADs NOTE Selectors 7 and 8 are applicable only to the European versions Selectors 1 through 6 Compression threshold level for voice signals inputted via the telephone line in the built in TAD operation If v...

Page 348: ...Not used NOTE Selectors 1 through 3 are applicable to models equipped with internal TADs Selectors 1 through 3 Dial tone busy tone detection level during recording of ICM Not used If the machine called station detects dial tone 400 Hz continuously or busy tone 400 Hz intermittently exceeding the detection level specified by these selectors for the period specified by selectors 1 through 4 of WSW35...

Page 349: ...at full size 100 without reduction if it is set to 1 the machine records it at 70 size Selector 5 Minimum ON and OFF duration of ringer signals effective in distinctive ringing The ringer pattern consists of short and long rings e g short short long rings This selector sets the minimum ON and OFF duration of ringer signals that are required for the machine to interpret ringer signals as being ON o...

Page 350: ... 1 Photo 7 8 Default contrast No 7 8 0 X Automatic 1 0 Super light 1 1 Super dark Selectors 5 and 6 Default resolution These selectors set the default resolution which applies when the machine is turned on or completes a transaction Selectors 7 and 8 Default contrast These selectors set the default contrast which applies when the machine is turned on or completes a transaction ...

Page 351: ...uring recording of ICM If the tone level during recording of ICM is less than the threshold setting made by these selectors the tone is interpreted as no tone When the no tone state is kept for the period specified by selectors 1 through 5 of WSW21 the machine disconnects the line Selectors 4 and 5 FAX receiving speed to be kept within the transmission speed limit to the PC To transmit FAX data be...

Page 352: ...eceding the tone detection starting point in the case of automatic line disconnection due to no voice signal received If the machine has disconnected the line after detection of disconnection tone in ICM recording it erases tone recorded preceding the tone detection starting point for the time length set by these selectors Selectors 4 and 5 No of CNG cycles to be detected when the line is connecte...

Page 353: ... sec 0 1 0 0 4 sec 1 1 1 1 15 sec 5 8 Not used NOTE Selectors 1 through 4 are applicable to models equipped with internal TADs Selectors 1 through 4 Max detection period of dial tone busy tone during recording of ICM If the machine called station detects dial tone or busy tone exceeding the detection level specified by selectors 1 through 3 of WSW30 for the period specified by these selectors then...

Page 354: ...PC Interface Not used If the machine recognizes via the STB signal line that the connected PC is powered off it will turn the PC interface outputs Low to protect the PC from hazards that could be caused by weak electric current accidentally flown from the machine This selector determines whether or not the machine should recover from the inactive PC interface to normal interfacing state upon recei...

Page 355: ...Function Setting and Specifications 1 Printout of the stored image data of an unsent document onto an error report 0 No 1 Yes 2 Erasure of the stored image data of an unsent document at the time of the subsequent in memory message transmission 0 No 1 Yes 3 8 Not used Selector 1 Printout of the stored image data of an unsent document onto an error report This selector determines whether or not to p...

Page 356: ...ning level to be applied if the machine fails to send training due to weak line connection If these selectors are set to 0 X the modem will automatically set the appropriate training level Selector 3 Sending level of guard tone at phase 2 This selector sets the sending level of guard tone for 1800 Hz to be sent at Phase 2 in the V 34 mode Selector 4 Stepping down the transmission speed at fallback...

Page 357: ... 1 through 8 First and last choices of transmission speed for fallback These selectors are used to set the modem speed range With the first transmission speed choice specified by selectors 1 through 4 the machine attempts to establish the transmission link via the modem If the establishment fails the machine automatically steps down to the next highest speed and attempts to establish the transmiss...

Page 358: ...e listed on the next page The setting made by these selectors will limit the setting made by selectors 1 through 4 of WSW39 If selector 3 is set to 1 to mask the 3429 symbols second when the first transmission speed choice is 33600 bps specified by selectors 1 through 4 of WSW39 for example then the allowable maximum transmission speed will be limited to 31200 bps If selector 8 is set to 1 to mask...

Page 359: ...00 2400 3000 4800 3429 4800 4800 7200 7200 7200 9600 9600 9600 12000 12000 12000 14400 14400 14400 16800 16800 16800 19200 19200 19200 21600 21600 21600 24000 24000 2800 4800 26400 28800 7200 28800 31200 9600 3200 4800 33600 12000 7200 14400 9600 16800 12000 19200 14400 21600 16800 24000 19200 26400 21600 24000 26400 28800 31200 ...

Page 360: ...4 dBm 1 1 1 1 25 dBm Selectors 1 through 3 ON duration of the scanning light source at room temperature Not used If the scanning operation is started when the scanning light source is off then it will come on for scanning These selectors determine how long the light source is ON after scanning If these selectors are set to 1 1 1 the light source goes off immediately after the scanning sequence Sel...

Page 361: ...ace WSW43 Function setting 21 Selector No Function Setting and Specifications 1 Not used 2 3 Wait time for PC Fax reception Class 2 and FPTS command transmission No 2 3 0 0 50 ms 0 1 100 ms 1 0 150 ms 1 1 0 ms 4 5 Detection time of 2100 Hz CED or ANSam No 4 5 0 0 200 ms 0 1 300 ms 1 0 400 ms 1 1 500 ms 6 Not used 7 Automatic start of remote maintenance 0 No 1 Yes 8 JPEG coding 0 Disable 1 Enable S...

Page 362: ...min 1 1 1 30 min NOTE Selectors 6 through 8 are applicable only to models equipped with ADF units Selectors 6 through 8 Effective time length of the white level compensation data obtained beforehand Not used If you set documents in the ADF and the document front sensor detects them the controller will make correction of the reference voltage to be applied to white level compensation for document s...

Page 363: ...position after you set them in the ADF as well as determining whether or not the ADF automatically draws in documents Selectors 4 through 6 Periodical correction intervals of the reference voltage applied to white level compensation for document scanning during standby Not used These selectors set the correction intervals in seconds of the reference voltage to be applied to white level compensatio...

Page 364: ...at high level Not used Setting this selector to 0 will keep all parallel output pins of the machine at high level Use this setting if Resource Manager bundled with MFC models installed to WindowsNT running on the connected PC fails to monitor the power ON OFF state of the machine Selector 4 Previous filtering parameters for white level compensation Not used At the start of scanning operation the m...

Page 365: ...e applicable only to models supporting pseudo ringing of a connected external telephone Selector 1 Handling paper at the occurrence of a paper feed timing error When feeding paper to the print start position the machine might cause a feed timing error so that the registration sensor goes ON signaling the presence of paper This selector determines whether the machine prints on the current paper or ...

Page 366: ...nd Specifications 1 2 Not used 3 End of copying beep 0 Yes 1 No 4 5 Command flag detection time No 4 5 0 0 150 ms 0 1 350 ms 1 0 550 ms 1 1 750 ms 6 7 Not used 8 Print in black 0 No Normal color print 1 Yes Selectors 4 and 5 Command flag detection time After receiving a command flag the machine will wait for the command that should follow for the time length specified by these selectors Selector 8...

Page 367: ...0 1 11 V 1 0 25 V 1 1 31 V NOTE WSW50 is applicable to models equipped with SDAA circuits Selectors 5 and 6 Current control to be applied immediately after connection of the line FAX models equipped with an SDAA circuit on which an NTU chip is mounted might not be connected to a broad band line such as an ADSL Asynchronous Digital Subscriber Line in a stable condition If those models fail to conne...

Page 368: ... CR motor control for reducing torque fluctuation When the CR motor runs the motor torque may vary so as to cause the head carriage unit travel velocity to fluctuate affecting the print quality Setting this selector to 0 activates the CR motor control that regulates the motor drive current to reduce torque fluctuation running the CR motor smoothly Selector 8 Switching from ink near empty to ink em...

Page 369: ...W52 Selector No Function Setting and Specifications 1 8 Not used WSW53 Function setting 18 Selector No Function Setting and Specifications 1 6 Not used 7 CNG detection retry after detection of invalid CNG 0 Yes 1 No 8 Not used ...

Page 370: ...Confidential MFC820CW MFC640CW DCP340CW Appendix 5 Wiring Diagrams This appendix provides the wiring diagrams that help you understand the connections between PCBs ...

Page 371: ...RE1_3 PIRE1_2 PIRE1_1 CN3 14 11 10 9 8 7 6 5 4 3 2 1 16 15 13 12 17 ENC2 VSS2 VDD2 VSS2 VSS2 VSS2 VDD2 VDD2 VDD2 VSS1 VDD1 CNT5V ENC1 MCNT5V MEDIACNTL MEDIA THM 11 10 9 8 7 6 5 4 3 2 1 16 15 14 13 12 CN1 28 22 21 20 19 18 17 27 26 25 24 23 FG FG COM VDD2 VDD2 VSS2 FIRE1_6 FIRE0_6 FIRE1_5 FIRE1_4 FIRE0_5 FIRE0_4 SIN57 SIN46 SIN13 SIN02 VTEMP_CHECK FIRE1_3 FIRE1_2 FIRE1_1 FIRE0_3 FIRE0_2 FIRE0_1 CLK...

Page 372: ...19 18 17 27 26 25 24 23 FG FG COM VDD2 VDD2 VSS2 FIRE1_6 FIRE0_6 FIRE1_5 FIRE1_4 FIRE0_5 FIRE0_4 SIN57 SIN46 SIN13 SIN02 VTEMP_CHECK FIRE1_3 FIRE1_2 FIRE1_1 FIRE0_3 FIRE0_2 FIRE0_1 CLK VDD1 VSS1 VSS2 COM Head PCB 8 7 6 5 4 3 2 1 CN4 9 S0V EMP LEDPWR MCNT CCNT VCNT BCNT 7 6 5 4 3 2 S0V EMP LEDPWR MCNT CCNT YCNT BCNT CN1 1 Ink cartridge PCB Maintenance unit SEN_PURGE S0V CR_OUTB 1 CR_OUTA CN16 2 Car...

Page 373: ...his appendix provides the circuit diagrams of the MJ PCB and power supply PCB A MJ PCB U S A Canadian and Asian models except DCP340CW MJ PCB European models except DCP340CW B Power supply PCB U S A and Canadian models Power supply PCB European Asian and Oceanian models ...

Page 374: ... 0033PF CN5 MJ 62J RD315 3 Ta 4 Tb 7 FG 8 FG C6 C102 KY FG C1 C102 KY C2 C102 KY POL CN2 B2B PH K Y 1 POL 2 S0V S0V POL CN3 B2B PH K K 1 30V 2 EXT SW1 A5X G 24E 1 2 12 11 7 D3 C8 C473 C4 C153 D1 1SS120 C7 C682 C3 C153 JW3 JW2 C5 C474 L2 DL 6503C S0V JW1 D2 1SS120 JW4 L3 0 PH1 TLP629 A K E C to MAIN SDAA to Main PCB to Line to EXT A MJ PCB U S A Canadian and Asian models except DCP340CW Confidentia...

Page 375: ...F L4 DRL 0033PF CN5 MJ 62J RD315 3 Ta 4 Tb 7 FG 8 FG C6 C102 KY FG C1 C102 KY C2 C102 KY POL CN2 B2B PH K Y 1 POL 2 S0V S0V POL CN3 B2B PH K K 1 30V 2 EXT SW1 A5X G 24E 1 2 12 11 7 D3 C8 C473 C4 C153 D1 1SS120 C7 C682 C3 C153 JW3 JW2 C5 C474 L2 DL 6503C S0V JW1 D2 1SS120 JW4 L3 0 PH1 TLP629 A K E C to MAIN SDAA to Main PCB to Line to EXT A MJ PCB European models except DCP340CW Confidential ...

Page 376: ...B Power Supply PCB U S A and Canadian models Confidential ...

Page 377: ...B Power Supply PCB European Asian and Oceanian models Confidential ...

Page 378: ...ninstallingthe printer driver the installer logs events that occur during the installation process in the event log file This appendix views a sample of the event log file Selecting Start Program Brother MFL Pro Suite model name Installation Diagnostics reads out the event log file ...

Page 379: ...er driver 00325207 040000 INF Function Data FAXTX FAX sending driver 00325207 040000 INF INIDATA PRT 1 FAXRX FAX receiving software 00325207 040000 INF INIDATA SCN 1 RSP Remote Setup software 00325207 040000 INF INIDATA FAXTX 1 MEDIA Media Drive driver 00325207 040000 INF INIDATA FAXRX 1 00325207 040000 INF INIDATA RSP 1 7 All models indicate 0 because BH3 doesn t check Media Drive 00325217 040000...

Page 380: ...00325497 040000 INF Scanner Driver Check End 00325497 040000 INF FAXTX Driver Check Start 00325497 040000 INF PARAM MODEL NAME PC FAX 25 FAX Tx Driver Installation Check 00325497 040000 INF PARAM CMP PRINTER NAME Brother PC FAX 2 00325497 040000 INF PARAM INTERFACE USB 00325497 040000 INF PARAM PRINTER ID 00325497 040000 INF PARAM MODE 0 00325507 040000 INF EXIST DRIVER NAME Brother PC FAX 2 26 If...

Page 381: ...DEL NAME PC FAX 00328191 040000 INF PARAM CMP PRINTER NAME Brother PC FAX 2 00328191 040000 INF PARAM INTERFACE USB 40 PC FAX Sending Driver Check 00328191 040000 INF PARAM PRINTER ID 7 19FA3ABD 0 USB006 00328191 040000 INF PARAM MODE 1 00328191 040000 INF Fax Port Check Start 00328191 040000 INF FAX PORT CHECK USB006 41 Communication Check to this port 00328191 040000 INF INTERFACE USB 42 Port Ty...

Page 382: ...25 Intel 82371AB EB PCI to ISA bridge ISA mode 00334510 040000 INF USB Chip1 Device26 Intel r 82371AB EB PCI Bus Master IDE Controller 00334510 040000 INF USB Chip2 Device27 Intel 82371AB EB PCI to USB Universal Host Controller 54 USB Chip Information 00334510 040000 INF USB Chip3 Device28 Intel 82443BX Pentium r II Processor to PCI Bridge 00334510 040000 INF USB Chip4 Device29 Intel 82443BX Penti...

Page 383: ...0 INF Process Information End 00341109 040000 INF Startup Information Start 00341109 040000 INF STARTUP Microsoft Office lnk 58 Startup Registration 00341109 040000 INF STARTUP Status Monitor lnk If you failed to install and virus checker was running displace it 00341109 040000 INF Startup Information End 00347739 040000 INF Installation Diagnostics Result Start 59 Installation Diagnostics Result ...

Page 384: ...er 00220787 040000 INF Function Data FAXTX FAX sending driver 00220787 040000 INF INIDATA PRT 1 FAXRX FAX receiving software 00220787 040000 INF INIDATA SCN 1 RSP Remote Setup software 00220787 040000 INF INIDATA FAXTX 1 MEDIA Media Drive driver 00220787 040000 INF INIDATA FAXRX 1 00220787 040000 INF INIDATA RSP 1 7 All models indicate 0 because BH3 doesn t check Media Drive 00220787 040000 INF IN...

Page 385: ...M PRINTER ID 00221158 040000 INF PARAM MODE 0 00221158 040000 INF EXIST DRIVER NAME Brother PC FAX 2 26 If there is EXIST DRIVER NAME PC FAX sending driver is properly installed 00221158 040000 INF PC FAX PORT NAME USB006 00221158 040000 INF FAXTX Driver Check End 00221168 040000 INF FAXRX Check Start 00221168 040000 INF FAXRX FILE CHECK OK 27 FAX Rx File Check 00221168 040000 INF FAXRX Check End ...

Page 386: ...NF Process Information Start 00235429 010000 ERR Process1 00235429 010000 ERR Process2 00235429 010000 ERR Process3 SystemRoot System32 smss exe 00235429 010000 ERR Process4 00235429 010000 ERR Process5 C WINNT system32 winlogon exe 00235429 010000 ERR Process6 C WINNT system32 services exe 00235429 010000 ERR Process7 C WINNT system32 lsass exe 00235429 010000 ERR Process8 C WINNT system32 svchos...

Page 387: ...Installation Failure CANNOT Communicate 00242088 010000 ERR FAXTX_INST OK 67 PC FAX Sending Driver Installation Result 00242088 010000 ERR FAXTX_PORT USB006 68 PC FAX Sending Driver Port 00242088 010000 ERR FAXRX NG Communication 69 PC FAX Receiving Software Installation Failure CANNOT Communicate 00242088 010000 ERR FAXRX_INST OK 70 PC FAX Receiving Software Installation Result 00242088 010000 ER...

Page 388: ... 00622414 040000 INF Function Data FAXTX FAX sending driver 00622414 040000 INF INIDATA PRT 1 FAXRX FAX receiving software 00622414 040000 INF INIDATA SCN 1 RSP Remote Setup software 00622414 040000 INF INIDATA FAXTX 1 MEDIA Media Drive driver 00622414 040000 INF INIDATA FAXRX 1 00622414 040000 INF INIDATA RSP 1 7 All models indicate 0 because BH3 doesn t check Media Drive 00622414 040000 INF INID...

Page 389: ...AME Brother PC FAX 3 00622454 040000 INF PARAM INTERFACE USB 00622454 040000 INF PARAM PRINTER ID 26 If there is no EXIST DRIVER NAME PC FAX sending driver is not properly installed 00622454 040000 INF PARAM MODE 0 00622454 040000 INF FAXTX Driver Check End 00622454 040000 INF FAXRX Check Start 00622454 040000 INF FAXRX FILE CHECK NG 27 FAX Rx File Check 00622454 040000 INF FAXRX Check End 28 If F...

Page 390: ...ay Name DisplayName9 Brother Drivers 00624216 040000 INF ADD REMOVE APPLICATION Check End 00625218 040000 INF Installation Diagnostics Result Start 59 Installation Diagnostics Result OK NG Installation NG Communication 00625218 010000 ERR PRT NG Install 60 Printer Driver Installation Failure Failure to install file 00625218 010000 ERR PRT_INST NG 61 Scanner Driver Installation Result 00625218 0100...

Page 391: ...iles Brother Brmfl04b Brmfinfo ini PRT Printer driver 00318407 040000 INF Function Data SCN Scanner driver 00318407 040000 INF INIDATA PRT 1 FAXTX FAX sending driver 00318407 040000 INF INIDATA SCN 1 FAXRX FAX receiving software 00318407 040000 INF INIDATA FAXTX 1 RSP Remote Setup software 00318407 040000 INF INIDATA FAXRX 0 MEDIA Media Drive driver 00318407 040000 INF INIDATA RSP 0 00318407 04000...

Page 392: ... BrNetCloseDevice WSAWaitForMultipleEvents timeout Error code 0 00322482 010000 ERR BrNetCloseDevice WSAWaitForMultipleEvents timeout Error code 0 00322482 040000 INF Connect Device Name Brother MFC 5840CN 00322482 040000 INF Nework Connect Check End 00322482 040000 INF PORT CHECK OK 78 If OK communication to network port is available 00322482 040000 INF Network Port Check End 00322482 040000 INF ...

Page 393: ... timeout Error code 0 00336853 010000 ERR BrNetCloseDevice WSAWaitForMultipleEvents timeout Error code 0 00336853 040000 INF Connect Device Name Brother MFC 5840CN 00336853 040000 INF Nework Connect Check End 00336853 040000 INF PORT CHECK OK 00336853 040000 INF Fax Port Check End 00336853 040000 INF FAXTX Driver Check End 00336853 040000 INF FAXRX Check Start 00336853 040000 INF FAXRX FILE CHECK ...

Page 394: ...t2 NoDeviceConnected NoDeviceConnected 00338586 040000 INF Enumerate Host Controllers Check End 00339036 040000 INF USB Chip information Check Start 00339036 040000 INF USB Chip0 Device25 Intel 82371AB EB PCI to ISA bridge ISA mode 00339036 040000 INF USB Chip1 Device26 Intel r 82371AB EB PCI Bus Master IDE Controller 00339036 040000 INF USB Chip2 Device27 Intel 82371AB EB PCI to USB Universal Hos...

Page 395: ...04 bh3 Install Appli BH3 Ver1 01 UsaEur Data Disk1 Setup exe 00345566 010000 ERR Process19 apngo sugi SOFT1 PC Appli PCDisks Debug2004 bh3 Install Appli BH3 Ver1 01 UsaEur Data Disk1 Diagnosis BR_collect exe 00345566 040000 INF Process Information End 00345566 040000 INF Startup Information Start 00345566 040000 INF STARTUP Microsoft Office lnk 58 Startup Registration 00345566 040000 INF STARTUP S...

Page 396: ...h C Program Files Brother Brmfl04b Brmfinfo ini SCN Scanner driver 03635316 040000 INF Function Data FAXTX FAX sending driver 03635316 040000 INF INIDATA PRT 1 FAXRX FAX receiving software 03635316 040000 INF INIDATA SCN 1 RSP Remote Setup software 03635316 040000 INF INIDATA FAXTX 1 MEDIA Media Drive driver 03635316 040000 INF INIDATA FAXRX 0 03635316 040000 INF INIDATA RSP 0 7 All models indicat...

Page 397: ...010000 ERR CheckNetwork Error Port Name iligal Time 3 03643428 010000 ERR Cannot Get IP Address ErrCode 11001 03643428 010000 ERR CheckNetwork Error Port Name iligal Time 4 03645440 010000 ERR Cannot Get IP Address ErrCode 11001 03645440 010000 ERR CheckNetwork Error Port Name iligal Time 5 03647453 010000 ERR Cannot Get IP Address ErrCode 11001 03647453 010000 ERR CheckNetwork Error Port Name ili...

Page 398: ...01 03680641 010000 ERR CheckNetwork Error Port Name iligal Time 5 03682654 010000 ERR Cannot Get IP Address ErrCode 11001 03682654 010000 ERR CheckNetwork Error Port Name iligal Time 6 03684667 010000 ERR Cannot Get IP Address ErrCode 11001 03684667 010000 ERR CheckNetwork Error Port Name iligal Time 7 03686680 010000 ERR Cannot Get IP Address ErrCode 11001 03686680 010000 ERR CheckNetwork Error P...

Page 399: ...3719046 040000 INF GetPortName Result 0 03719046 040000 INF Get PortName AUTO 03719607 040000 INF ChkDevCommunication Result 40 03719607 010000 ERR Scanner Connect NG 03724965 040000 INF Initialize Result 0 03725526 040000 INF ChkStiDevice Result 0 03725526 040000 INF ChkWiaDevice Result 3 03728390 040000 INF ChkTwainDs Result 0 03728390 040000 INF Get ScannerName Brother MFC 5840CN LAN 03729992 0...

Page 400: ...ER NAME Brother PC FAX 5 26 PC FAX sending driver is properly installed 03771612 040000 INF PC FAX PORT NAME BRN_6007C0 03771612 040000 INF PARAM MODEL NAME PC FAX 03771612 040000 INF PARAM CMP PRINTER NAME Brother PC FAX 5 03771612 040000 INF PARAM INTERFACE LAN 03771612 040000 INF PARAM PRINTER ID 03771612 040000 INF PARAM MODE 1 03771612 040000 INF Fax Port Check Start 03771612 040000 INF FAX P...

Page 401: ... BRN_6007C0 03806822 040000 INF INTERFACE LAN 03806822 040000 INF Nework Connect Check Start 03806832 010000 ERR Cannot Get IP Address ErrCode 11001 95 Attempting again because the first attempt was NG 03806832 010000 ERR CheckNetwork Error Port Name iligal Time 0 03808845 010000 ERR Cannot Get IP Address ErrCode 11001 03808845 010000 ERR CheckNetwork Error Port Name iligal Time 1 03810858 010000 ...

Page 402: ...icate 03837146 040000 INF USB Host Controler HCD0 Intel 82371AB EB PCI to USB Universal Host Controller 33 Communication Check 03837777 040000 INF Connect Device Information Start It obtains the status of connecting to local network even though it 03837777 040000 INF Port1 Dev1 USB Composite Device is connecting to network 03837777 040000 INF Connect Device Information End 34 USB device is connect...

Page 403: ...R Process2 03845718 010000 ERR Process3 SystemRoot System32 smss exe 03845718 010000 ERR Process4 03845718 010000 ERR Process5 C WINNT system32 winlogon exe 03845718 010000 ERR Process6 C WINNT system32 services exe 03845718 010000 ERR Process7 C WINNT system32 lsass exe 03845718 010000 ERR Process8 C WINNT system32 svchost exe 56 Process Information which is running 03845718 010000 ERR Process9 C...

Page 404: ...n 63 Scanner Driver Installation Failure cannot communicate 03852358 010000 ERR SCN_INST OK 64 Scanner Driver Installation Result 03852358 010000 ERR SCN_PORT AUTO 65 Scanner Driver Port 03852358 010000 ERR FAXTX NG Communication 66 PC FAX Sending Driver Installation Failure cannot communicate 03852358 010000 ERR FAXTX_INST OK 67 PC FAX Sending Driver Installation Result 03852358 010000 ERR FAXTX_...

Page 405: ...ger to use the TWAIN protocol is not available The TWAIN Data Source Manager may not exist SCDIAG_STIDEVICE_CREATE_FAIL 20 The system failed to create the STI device The STI WIA service or the minidriver may have problems SCDIAG_STI_SYSTEM_ERROR 21 The STI Interface IStillImage is not available The STI service may not start or the operation system may have problems SCDIAG_WIADEVICE_CREATE_FAIL 30 ...

Page 406: ...Confidential August 05 SM FAX046 8CA817 Printed in Japan ...

Search results

Summary of Contents for DCP-340CW

Reviews:

Related manuals for DCP-340CW

Brands by name

Popular brands

Brother DCP-340CW, Service Manual

Search results

Summary of Contents for DCP-340CW

Reviews:

Related manuals for DCP-340CW

Brands by name

Popular brands