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CHAPTER 6 TROUBLESHOOTING

6-23

7. IMAGE

DEFECTS

7.1

Image Defect Examples

I-2 Dark

I-1 Light

I-2 Dark

I-3 Completely blank

I-4 All black

I-5 Dirt on back of paper

I-6 Black vertical

streaks

I-6 Black vertical

streaks

I-7 Black horizontal

stripes

I-12 Poor fixing

I-13 Image distortion

I-14 Faint print

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I-19 Hollow print

I-15 White spots

I-16 Black spots

I-18 Gray background

I-17 Black band

I-20 Downward fogging

of solid black

I-21 Horizontal lines

I-11 Faulty
registration

I-10 White horizontal

streaks

I-8 Black vertical

streaks

I-9 White vertical

streaks

I-23 Ghost

I-22 Light rain

I-24 Toner specks

Fig. 6-5

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Summary of Contents for HL-1030

Page 1: ...ser Printer SERVICE MANUAL MODEL HL 1030 1240 1250 1270N Read this manual thoroughly before maintenance work Keep this manual in a convenient place for quick and easy reference at all times September 1999 SM PRN001 ...

Page 2: ...stered in the United States and other countries and True Type is a trademark of Apple computer Inc Epson is a registered trademark and FX 80 and FX 850 are trademarks of Seiko Epson Corporation Hewlett Packard is a registered trademark and HP Laser Jet is a trademark of Hewlett Packard Company IBM IBM PC and Proprinter are registered trademarks of International Business Machines Corporation Micros...

Page 3: ... timing information CHAPTER 4 DISASSEMBLY AND RE ASSEMBLY Procedures for disassembling and re assembling the mechanical system CHAPTER 5 MAINTENANCE Periodical replacements parts consumable parts etc CHAPTER 6 TROUBLESHOOTING Reference values and adjustments troubleshooting image defects troubleshooting malfunctions etc APPENDICES Serial No descriptions Drum life page counter Diameter circumferenc...

Page 4: ...INSTALLATION 2 1 1 1 Power Supply 2 1 1 2 Environment 2 1 1 3 System Requirements for Brother Printer Solution for Windows 2 1 2 UNPACKING 2 2 3 INSTALL THE PRINTER 2 3 3 1 For Windows Users 2 3 3 2 For Windows Users with No CD ROM Drive 2 5 3 2 1 Install the drum unit 2 5 3 2 2 Load paper 2 5 3 2 3 Print a test page 2 5 3 2 4 Connect the printer and the computer 2 6 3 2 5 Install the printer driv...

Page 5: ...cable 2 17 6 1 2 Install the BRAdmin32 configuration utility for Windows 95 98 NT 4 0 users only 2 17 6 1 3 Print configuration page 2 18 6 2 Functions 2 18 6 2 1 LED functions 2 18 6 2 2 Factory default setting 2 18 CHAPTER 3 THEORY OF OPERATION 3 1 1 ELECTRONICS 3 1 1 1 General Block Diagram 3 1 1 2 Main PCB Block Diagram 3 4 1 3 Main PCB 3 7 1 3 1 ASIC 3 7 1 3 2 ROM 3 10 1 3 3 Flash ROM 3 12 1 ...

Page 6: ...RE 4 3 3 1 AC Cord 4 3 3 2 Drum Unit 4 3 3 3 Paper Cassette 4 4 3 4 Network Board for HL 1270N only 4 10 3 5 Front Cover 4 11 3 6 Top Cover 4 12 3 7 Main Cover 4 13 3 8 Laser Unit 4 15 3 9 Drive Unit 4 16 3 10 Fixing Unit 4 18 3 11 Base Plate 4 27 3 12 Main PCB ASSY 4 29 3 13 Lower Tray Relay PCB ASSY for HL 1250 1270N only 4 29 3 14 Low voltage Power Supply PCB ASSY 4 30 3 15 Engine PCB ASSY High...

Page 7: ...alls 6 4 2 2 Service Calls 6 4 3 ERROR MESSAGES 6 6 3 1 Error Messages in the Status Monitor 6 6 3 2 Error Message Printouts 6 8 4 PAPER PROBLEMS 6 9 4 1 Paper Load Problems 6 9 4 2 Paper Jams 6 10 4 2 1 Clearing the jammed paper 6 10 4 2 2 Causes countermeasures 6 11 4 3 Paper Feeding Problems 6 12 5 SOFTWARE SETTING PROBLEMS 6 14 6 MALFUNCTIONS 6 18 7 IMAGE DEFECTS 6 23 7 1 Image Defect Examples...

Page 8: ...AGNOSTICS TOOLS A 11 6 NVRAM DEFAULT VALUE A 15 7 PAPER CASSETTE INFORMATION FOR EUROPE ONLY A 16 8 CONNECTION DIAGRAM HL 1030 1240 A 17 9 CONNECTION DIAGRAM HL 1250 A 18 10 CONNECTION DIAGRAM HL 1270N A 19 11 MAIN PCB CIRCUIT DIAGRAM HL 1030 1240 1 2 A 20 12 MAIN PCB CIRCUIT DIAGRAM HL 1030 1240 2 2 A 21 13 MAIN PCB CIRCUIT DIAGRAM HL 1250 1270N 1 5 A 22 14 MAIN PCB CIRCUIT DIAGRAM HL 1250 1270N ...

Page 9: ...fter August 2 1976 Compliance is mandatory for products marketed in the United States One of the following labels on the back of the printer indicates compliance with the FDA regulations and must be attached to laser products marketed in the United States The label for Japanese manufactured products MANUFACTURED K BROTHER INDUSTRIES LTD 15 1 Naeshiro cho Mizuho ku Nagoya 467 8561 Japan This produc...

Page 10: ... Since the variable resistor in the laser unit is adjusted in accordance with the standards never touch it Caution Use of controls adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure For Finland and Sweden LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT Varoitus Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tava...

Page 11: ...amage the eyes Since the beam is invisible the following caution label is attached on the laser unit CAUTION INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCK DEFEATED AVOID DIRECT EXPOSURE TO BEAM CLASS 3B LASER PRODUCT ADVARSEL USYNLIG LASER STRÅLING NÅR KABINETLÅGET STÅR ÅBENT UNGDÅ DIREKTE UDSÆTTELSE FOR STRÅLING KLASSE 3B LASER VARNING OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRRA...

Page 12: ...rious kinds of WARNING messages included in this manual WARNING Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer WARNING Some parts inside the printer are extremely hot immediately after the printer is used When opening the front cover or rear cover to access any parts inside the printer never touch the red colored parts...

Page 13: ...ly install them into your Windows system using our installer program The driver supports our unique compression mode to enhance printing speed in Windows applications and allows you to choose various printer settings including toner save mode custom paper size sleep mode gray scale adjustment resolution water mark and many layout functions You can easily setup these print options through the Print...

Page 14: ... Proprinter XL The HL 1270N supports HP LaserJet 6P PCL6 PostScript Level 2 language emulation Brother BR Script Level 2 Epson FX 850 and IBM Proprinter XL When you use DOS application software or Windows version 3 0 or earlier you can use any of these emulations to operate the HL 1250 1270N printers The printers also support auto emulation switching between HP Brother BR Script 2 and Epson or HP ...

Page 15: ...ter has built in multi protocol network capability as standard This allows multiple host computers to share the printer on a 10 100Mbit Ethernet network Any users can print their jobs as if the printer was directly connected to their computer Users on Windows 95 98 Windows NT UNIX Novell Apple Macintosh LAN server and OS 2 Warp server computer simultaneously can access this printer For further inf...

Page 16: ...on flap Front cover Power switch Manual feed slot Rear cover Paper indicator USB interface connector Power switch Parallel interface connector Rear cover AC power inlet USB interface connector for HL 1240 only Modular jack for Lower Tray Unit AC power inlet Parallel interface connector HL 1030 1240 Network interface for HL 1270N only Test button LED Network port Network board for HL 1270N only ...

Page 17: ...ndows and DOS Print quality Normal printing mode Economy printing mode up to 25 and 50 toner saving Print speed HL 1030 Up to 10 pages minute HL 1240 1250 1270N Up to 12 pages minute when loading A4 or Letter size paper from the paper cassette Warm up Max 45 seconds at 23 C 73 4 F First print 15 seconds when loading A4 or Letter size paper from the paper cassette Print media Toner cartridge Life e...

Page 18: ...d Windows NT 4 0 driver for HL 1270N only Others iMac Power Macintosh G3 with USB printer driver for HL 1240 1250 1270N only Optional Macintosh driver available for System 6 0 7 or higher for HL 1250 only Interface Bi directional parallel Universal Serial Bus USB for HL 1240 1250 1270N only Optional RS 422A RS 232C serial RS 100M available for HL 1250 only 10 100 BaseTX Ethernet network interface ...

Page 19: ... 360 x 370 x 235 mm W x D x H 14 2 x 14 6 x 9 3 inches Legal paper cassette installed 360 x 430 x 235 mm 14 2 x 16 9 x 9 3 inches A4 lower paper cassette installed 360 x 370 x 345 mm HL 1250 1270N only 14 2 x 14 6 x 13 6 inches Legal lower paper cassette installed 360 x 430 x 345 mm HL 1250 1270N only 14 2 x 16 9 x 13 6 inches Weight Approx 9 2 kg 20 2 lb including the drum unit Approx 12 7 kg 27 ...

Page 20: ... 4 0 Port driver for Windows 95 98 NT 4 0 LPR port driver for Windows 95 98 only NetBIOS port driver SMTP port driver 3 5 Paper 3 5 1 Feedable paper 1 Type size Feeding source Paper type Paper size Paper cassette Normal paper Transparencies A4 Letter B5 ISO A5 A6 Executive Legal Manual feed slot Normal paper A4 Letter B5 JIS ISO A5 A6 Executive Legal 70 216 x 116 356 mm 2 75 8 5 x 4 57 14 inches E...

Page 21: ...r printer damage It is recommended to use long grained paper for the best print quality If short grained paper is being used it might be the cause of paper jams Use neutral paper Do not use acid paper to avoid any damage to the drum unit Avoid using coated paper such as vinyl coated paper Avoid using preprinted or highly textured paper It is recommended to use labels or transparencies which are de...

Page 22: ...cial paper cut sheet Envelopes Organizers 3 5 3 Print delivery 1 Output tray stacking capacity Maximum 150 sheets 80 g m 2 face down only 2 Straight paper path output at the rear of the printer capacity 1 sheet Thicker paper printing is recommended face up only NOTE When using the straight paper path feed and the rear output method for thicker paper printing lift up the rear cover at the rear of t...

Page 23: ...ions can be guaranteed 4 23mm 4 23mm 208mm 2 400 80 characters 25 25 3 6 2 Print guaranteed area A E C E B D F F The values above vary depending on the paper size For details see the table on the next page NOTE The units in the above figure are dot size based on 300 dpi resolution 25 dots at both sides is for italic characters 1 Supported by the engine 2 Supported by the emulation ...

Page 24: ...mm 3 66 1 098 dots 140 0 mm 5 51 1 654 dots Organizer J size 69 85 mm 2 75 825 dots 116 0 mm 4 57 1 370 dots 56 2 mm 2 21 675 dots 107 5 mm 4 23 1 270 dots 6 35 mm 0 25 75 dots Organizer K size 95 25 mm 3 75 1 125 dots 171 45 mm 6 75 2 025 dots 86 78 mm 3 42 975 dots 162 98 mm 6 42 1 925 dots Organizer L size 139 7 mm 5 5 1 650 dots 215 9 mm 8 5 2 550 dots 131 23 mm 5 17 1 500 dots 207 43 mm 8 17 ...

Page 25: ...lean Do not place the printer in a dusty place Do not place the printer where the ventilation hole of the printer is blocked Keep approximately 100 mm 4 inches between the ventilation hole and the wall Do not place the printer where it is exposed to direct sunlight Use a blind or a heavy curtain to protect the printer from direct sunlight when the printer is unavoidably set up near a window Do not...

Page 26: ...When unpacking the printer check to see that all of the following components are included in the carton Fig 2 1 NOTE Components may vary depending on the country AC cord Printer Paper cassette Drum unit with Toner cartridge included Documents CD ROM Floppy disk ...

Page 27: ...wer Close all the applications running on your PC 2 Insert the supplied CD ROM into the CD ROM drive 3 The opening screen will appear automatically in Windows 95 98 NT4 0 NOTE If the opening screen does not appear Click Start and select Run Then type D START in the command line box and click OK If your CD ROM drive is not D type the correct drive letter instead of D In Windows 3 1 Click the File m...

Page 28: ... NOW button you can install the printer driver immediately 10 After the printer driver has been installed the HL 1030 HL 1240 HL 1250 or HL 1270N window will appear Follow the on screen messages to complete the installation Fig 2 7 If your printer is connected using a parallel interface cable the setup is now completed If you want to connect your printer using a USB interface cable refer to Subsec...

Page 29: ...nto the printer until it snaps into place and close the front cover 3 2 2 Load paper 1 Pull the paper cassette completely out of the printer 2 Slide the paper guides to the paper size you want until they snap into a slot Fig 2 9 Fig 2 9 3 Load paper into the paper cassette Check that paper is flat placed Fig 2 10 Paper should be loaded up to the lines on the sliding guide 4 Re install the paper ca...

Page 30: ... Fig 2 13 3 2 5 Install the printer driver from floppy disk 1 Turn on the computer power If the Add New Hardware Wizard window appears click the Cancel button 2 Insert the supplied floppy disk into the floppy disk drive 3 Install the printer driver using the Setup exe file In Windows 95 98 i Click the Start button and select Run ii Type A SETUP and click OK If your floppy disk drive is not A inser...

Page 31: ...USB interface following the steps below 3 3 1 Connect the USB interface cable 1 Check that the printer power switch is on 2 Connect the USB interface cable to the computer then connect it to the printer Fig 2 14 Fig 2 14 3 3 2 Install the USB driver 1 The Add New Hardware Wizard window will appear Click the Next button Fig 2 15 2 Select Search for the best driver for your device Click the Next but...

Page 32: ...e supplied CD ROM into the CD ROM drive and select CD ROM drive Click the Next button Fig 2 17 4 Click the Next button then the USB driver will be installed Fig 2 18 5 Click the Finish button Fig 2 19 6 Click the Yes button then your PC will re start Fig 2 20 ...

Page 33: ... is now completed Fig 2 21 NOTE Both the parallel cable and USB interface cable can be connected to the printer at the same time 3 4 For Macintosh iMac and Power Macintosh with USB Users Only When you use the HL 1240 1250 1270N printer with Macintosh using USB setup the printer following the Initial Setup instructions on the supplied CD ROM 1 Turn on the computer power then insert the CD ROM into ...

Page 34: ... feed slot follow the steps below 1 Select the manual feed mode in the printer driver and send the print data to the printer NOTE A NO PAPER message is shown in the status monitor until a sheet of paper is inserted into the manual feed slot 2 Set the width of the manual feed slot paper guides using both hands to the paper width to be used Fig 2 23 Fig 2 23 3 Insert the paper into the manual feed s...

Page 35: ...ause wrinkling If paper is curled straighten it and then set it into the paper cassette The paper type should be regular paper Do not use bond paper When setting paper into the paper cassette empty the cassette first then insert the printed paper only printed side face up Do not add the printed paper onto the top of the unprinted paper stack If the paper is not feeding correctly the paper might be...

Page 36: ...manual feed mode from the driver 2 Using both hands insert the paper into the manual feed slot with the side to be printed first facing upwards Follow the instructions on the computer screen 3 Repeat action 2 until you have printed all the even numbered pages 4 Remove the printed even numbered pages from the output tray 5 Re insert them in order into the manual feed slot loading the paper with the...

Page 37: ...ives data or when you press the control panel button Blinking Blinking at 1 second intervals The printer is warming up Blinking at 2 seconds intervals The printer is cooling down and stops printing until the internal temperature of the printer lowers ON The printer is ready to print This LED also works as the Paper LED with the Alarm LED They blink simultaneously to indicate a paper error See Subs...

Page 38: ...ls in CHAPTER 6 for details Error Action Toner low Indicates that the toner cartridge is nearly empty Purchase a new toner cartridge ready for when the Toner empty error is indicated Toner empty Replace the toner cartridge with a new one 5 3 Drum LED Indications The Drum LED indicates the drum unit is nearly at the end of its life LED Printer status OFF The drum unit can be used ON The drum unit i...

Page 39: ... timeout is 5 minutes and it is automatically adjusted to the most suitable time out setting depending on the frequency of your printer use Intelligent Sleep Mode While the printer is in sleep mode all the LEDs are off and it is as if it was turned off but the printer can still receive data from the computer Receiving a print file or document automatically wakes up the printer to start printing Pr...

Page 40: ...PERATION 2 16 5 6 2 Test print mode The printer incorporates various test print modes The printer enters into each test print mode by panel button operation For details on test print mode see Subsection 10 1 Test Print Mode in CHAPTER 6 ...

Page 41: ...e to a free port on your Ethernet hub Hub Fig 2 29 3 Turn on the printer power 6 1 2 Install the BRAdmin32 configuration utility for Windows 95 98 NT 4 0 users only NOTE If you use another operating system refer to the Network User s Guide on the supplied CD ROM 1 Insert the supplied CD ROM into your CD ROM drive 2 Select the HL 1270N model button and follow the screen instructions Fig 2 30 3 The ...

Page 42: ... It is off if no network is detected F LED orange Fast Ethernet This LED will be on if the print server is connected to a 100BaseTX Fast Ethernet network It is off if the print server is connected to a 10BaseT network A LED green Transmission activity This LED will blink as the print server receives or transmits data 6 2 2 Factory default setting If you wish to reset the print server back to its d...

Page 43: ...allel USB Engine control block Operation block Control panel Control system Low voltage power supply block High voltage power supply block Laser unit Drive block DC motor Drum unit Transfer block Drum Charging block External device Paper tray unit Paper cassette Manual feed Fixing unit Paper eject block Paper feed system Image generation system RAM 2MB Paper dust cleaner block Developing block Ton...

Page 44: ...ation block Control panel Control system Low voltage power supply block High voltage power supply block Laser unit Drive block DC motor Drum unit Transfer block Drum Charging block External device External device Paper tray unit Paper cassette Manual feed Fixing unit Paper eject block Paper feed system Image generation system Interface block Parallel USB RAM 4MB Paper dust cleaner block Developing...

Page 45: ...ontrol panel Control system Low voltage power supply block High voltage power supply block Laser unit Drive block DC motor Drum unit Transfer block Drum Charging block External device External device Paper tray unit Paper cassette Manual feed Fixing unit Paper eject block Paper feed system Image generation system Interface block Parallel USB RAM 4MB Paper dust cleaner block Developing block Toner ...

Page 46: ... HL 1030 1240 printer Reset Circuit Program Font ROM 1 0 Mbytes RAM 2 0 Mbytes EEPROM 128 8 bits A S I C Oscillator 32 7MHz Address Decoder DRAM Control Timer FIFO CDCC Parallel I O Soft Support EEPROM I O Engine Control I O To Engine PCB CPU Core MB86833 BUS INT To PC USB I O HL 1240 only To PC Fig 3 4 HL 1030 1240 ...

Page 47: ...gram Font ROM 4 0 Mbytes RAM 4 0 Mbytes Option RAM SIMM max 32Mbytes Option Serial I O RS232C RS422A EEPROM 512 x 8 bits CPU Core MB86832 A S I C Oscillator 32 7MHz Address Decoder DRAM Control Timer FIFO CDCC Parallel I O Soft Support EEPROM I O Engine Control I O To Engine PCB BUS INT To PC USB I O To PC Fig 3 5 HL 1250 ...

Page 48: ...0 Mbytes RAM 4 0 Mbytes Option RAM SIMM max 32Mbytes EEPROM 4096 x 8 bits CPU Core MB86832 A S I C Oscillator 32 7MHz Address Decoder DRAM Control Timer FIFO CDCC Parallel I O Soft Support EEPROM I O Engine Control I O To Engine PCB BUS INT To PC USB I O To PC Flash ROM 2 0 Mbytes PCI Bus Control Network Board To PC or Hub Fig 3 6 HL 1270N ...

Page 49: ...interface block communication with external devices are described below 1 IEEE1284 Stores the data received from the PC into DRAM as controlled by the DMA controller It is applicable to both normal receiving and bi directional communication nibble mode byte mode ECP mode 2 USB interface for HL 1240 only Stores the data received from the PC into DRAM as controlled by the DMA controller The transmis...

Page 50: ... the PC into DRAM as controlled by the DMA controller It is applicable to both normal receiving and bi directional communication nibble mode byte mode ECP mode 2 USB interface Stores the data received from the PC into DRAM as controlled by the DMA controller The transmission speed is 12Mbps 3 Engine GA transfer circuit Communicates with the engine GA by a full duplex synchronous serial method The ...

Page 51: ...CHAPTER 3 THEORY OF OPERATION 3 9 Fig 3 8 ...

Page 52: ...CHAPTER 3 THEORY OF OPERATION 3 10 1 3 2 ROM An 8 Mbits ROM x 16 bit is fitted Fig 3 9 Two 16 Mbits ROMs x 16 bit are fitted Fig 3 10 HL 1250 HL 1030 1240 ...

Page 53: ...CHAPTER 3 THEORY OF OPERATION 3 11 Two 32 Mbits ROMs x 16 bit are fitted Fig 3 11 HL 1270N ...

Page 54: ...APTER 3 THEORY OF OPERATION 3 12 1 3 3 Flash ROM for HL 1270N only Two 8 Mbits flash ROMs x 16 bit are fitted Fig 3 12 1 3 4 DRAM A 16M bit DRAM x 16 bits is used as the RAM Fig 3 13 HL 1270N HL 1030 1240 ...

Page 55: ...CHAPTER 3 THEORY OF OPERATION 3 13 Two 16M bit DRAMs x 16 bits are used as the RAM Fig 3 14 HL 1250 1270N ...

Page 56: ...TER 3 THEORY OF OPERATION 3 14 1 3 5 Optional RAM A 32bit 72 pin SIMM can be fitted as optional RAM The main PCB has one slot and the capacity of SIMM can be from 1 Mbyte to 32 Mbytes Fig 3 15 HL 1250 1270N ...

Page 57: ...l I O is input to the EXINT terminal of the ASIC and is recognized by the CPU A 32 byte register is provided for this I O which is read from and written to by the CPU Fig 3 16 1 3 7 PCI bus The interface of the PCI bus is PCI specification revision 2 2 compliant Fig 3 17 HL 1250 HL 1270N ...

Page 58: ... EEPROM is X24C04 type of two wire method with a 512 x 8 bits configuration Fig 3 19 The EEPROM is X24C32 type of two wire method with a 4096 x 8 bits configuration Fig 3 20 1 3 9 Reset circuit The reset IC is a RN5VD42A The reset voltage is 4 2V typ and the LOW period of reset is 80ms typ Fig 3 21 HL 1250 HL 1270N HL 1030 1240 HL 1030 1240 ...

Page 59: ...p Fig 3 22 1 3 10 Engine I O Fig 3 22 shows the engine interface circuit The interface with the engine PCB is by full duplex synchronous serial method Fig 3 23 Fig 3 23 shows the engine interface circuit The interface with the engine PCB is by full duplex synchronous serial method Fig 3 24 HL 1250 1270N HL 1250 1270N HL 1030 1240 ...

Page 60: ...per cassette sensor HL 1250 1270N only Solenoid Lower paper cassette registration sensor HL 1250 1270N only High voltage power supply For the circuit diagram of the engine PCB see Appendix 18 1 5 BR net PCB for HL 1270N only The BR net PCB is connected to the ASIC mounted on the main PCB through the PCI bus The Ethernet controller AM79C973AKC is mounted on the BR net PCB The controller incorporate...

Page 61: ...lated output and the production code of each power supply are listed below Regulated Output Production Code 5V 1 6 A 24V 2 15 A 100V MPW1555 200V MPW1455 For the circuit diagram of the low voltage power supply PCB see Appendix 20 or 21 Heater Circuit Thermal Fuse Lightning Surge Absorber Feedback Line Filter Fuse Rectifier Oscillator 24V Regulation Circuit 24V 5V Lamp Heater Engin Circuit Fuse 5V ...

Page 62: ...he charging development and transfer functions For the circuit diagram of the high voltage power supply PCB see Appendix 22 Transfer Roller Supply Roller Photosensitive Drum Development Roller Corona Unit Current Regulator Current Regulator Voltage Regulator Voltage Regulator B1 B102 Q81 B101 Q101 Voltage Regulator Z51 VR51 VR22 24VI GND R1 Fig 3 26 ...

Page 63: ...Rear registration sensor lever Separation pad Front registration sensor lever Cassette pressure roller Paper pick up roller Paper feed roller Supply roller Toner sensor Agitator Blade Development roller Scanner motor Polygon mirror Laser Unit Corona wire Heat roller Cleaner Photosensitive drum Thermistor Eject sensor lever Pressure roller Drum Unit Fixing Unit Transfer roller ...

Page 64: ...eat Roller Panel PCB Low Voltage Power Supply PCB Fixing Unit Halogen Heater Lamp Front Registration Sensor Rear Registration Sensor Upper Paper Cassette Sensor HL 1250 1270N Lower Paper Cassette Registration Sensor HL 1250 1270N High Voltage Power Supply PCB Drum Unit Primary Charger Corona Wire Primary Charger Grid Supply Roller Transfer Roller Development Roller Network Board HL 1270N Cover Sen...

Page 65: ...r lever and the paper top position absence of paper is detected by sensing the motion of the lever 2 2 2 Paper registration After the paper top position is detected by the front registration sensor the paper separated into individual sheets by the paper pick up roller is fed further for a specified time and the paper top position reaches the paper feed roller so that the paper skew is adjusted The...

Page 66: ... detects whether the paper is ejected correctly or not After the paper exits from the first eject roller the paper is turned by the rear cover and ejected face down into the top output tray through the second eject roller If the rear cover is open the paper is ejected face up straight to the printer rear straight paper path Fig 3 31 2 3 Sensors 2 3 1 Cover sensors A and B Detect opening and closin...

Page 67: ...sensitive drum Generates the latent electrostatic image and develops the image on the drum surface 2 4 2 Primary charger Forms a uniform charge on the drum surface 1 Corona wire Generates the ion charge on the drum 2 Grid Spreads the ion charge evenly over the drum surface 2 4 3 Transfer roller Transfers the toner image to the paper from the drum surface 2 4 4 Cleaner Removes the paper dust or dir...

Page 68: ...d Organic Photoconductor layer Aluminum drum sleeve Photosensitive Drum HVPS 870V Voltage Regulator Grid Corona wire Fig 3 34 The primary charge uses a corona wire but since the drum is positively charged only less than 1 10 of the usual quantity of ozone is generated compared with the negatively charged drum The level of ozone expelled from the printer is therefore not harmful to the human body A...

Page 69: ...he development roller is made of conductive rubber and the supply roller which is also made of conductive sponge rotate against each other The toner is charged and carried from the supply roller to the development roller The toner adheres to the development roller and is conveyed to the photosensitive drum at an even thickness controlled by the blade The toner is nipped between the development rol...

Page 70: ...ay be residual toner on the drum which will adhere to the transfer roller The transfer voltage changes to a positive voltage during non printing rotation of the drum Therefore the transfer roller is cleaned by returning the positively charged toner adhering to the transfer roller onto the photo conductive drum 2 6 5 Fixing stage The image transferred to the paper by static electricity is fixed by ...

Page 71: ...r 3 When using soldering irons or other heat generating tools take care not to accidentally damage parts such as wires PCBs and covers 4 Before handling any PCBs touch a metal portion of the equipment to discharge any static electricity charge on your body or the electronic parts or components may be damaged 5 When transporting PCBs be sure to wrap them in the correct protective packaging 6 Be sur...

Page 72: ...PCB ASSY HL 1250 1270N only 21 PAPER PICK UP ROLLER ASSY 19 TONER SENSOR PCB ASSY emission 20 TONER SENSOR PCB ASSY reception PANEL PCB ASSY 16 SOLENOID ASSY 17 FAN MOTOR 18 A B MAIN COVER 7 5 FRONT COVER 6 TOP COVER LASER UNIT 8 FIXING UNIT 10 DRIVE UNIT 9 A B 22 PAPER FEED ROLLER ASSY 4 NETWORK BOARD HL 1270N only OUTER CHUTE 1 4 2 23 2 DISASSEMBL DISASSEMBLY FLOW ...

Page 73: ...D RE ASSEMBLY 4 3 3 DISASSEMBLY PROCEDURE 3 1 AC Cord 1 Disconnect the AC cord from the printer AC inlet Fig 4 1 3 2 Drum Unit 1 Open the front cover and remove the drum unit from the printer Fig 4 2 Printer AC cord Drum unit ...

Page 74: ...e paper cassette from the printer and remove the paper from the cassette Fig 4 3 2 Remove the separation pad holder ASSY by pulling it upwards then remove the separation pad spring from the paper cassette Fig 4 4 Paper cassette Paper cassette Separation pad spring Separation pad holder Front cover ...

Page 75: ...3x8 Taptite screw and remove the paper cassette cover from the front of the cassette Fig 4 6 NOTE The cover film must not be reused after it has been removed Always replace it with a new one The screw securing the paper cassette cover indicated RED in the figure above is very special When disassembling re assembling the screw you need a special screw driver Refer to the parts reference list Paper ...

Page 76: ... shaft from the pressure roller 7 Remove the sponge holder ASSY from the holder The two sponge holder springs will also come off Fig 4 7 8 Keeping the paper cassette upside down remove the two M2 6x5 Taptite screws 9 Unhook the catches of each side guide then press the lock lever towards the front of the cassette to release the pressure plate Fig 4 8 Cassette pressure roller Pressure roller holder...

Page 77: ...he pressure plate while pulling the plastic frame outwards then unhook the other two catches B of the plate while pulling the plastic frame outwards to remove the pressure plate ASSY 13 Unhook the pressure plate spring from the plastic hook to remove the two pressure plate springs Fig 4 10 Pressure plate ASSY Pressure plate spring Paper cassette hook Plastic frame Step 12 Step 13 catches A Step 12...

Page 78: ...rmed paper feeding problems may occur 14 Remove the release lever extension spring 15 Unhook the two catches and rotate the lock lever to remove it downwards from the cassette Fig 4 11 NOTE When re assembling the lock lever insert it upwards from underneath the cassette and rotate it until the two catches lock into place 16 Slide the rear paper guide fully forwards in the cassette and remove it fr...

Page 79: ... that the wide end of the racks are in line with the inside edge of the paper guide release slots in the cassette before refitting the spring and gear When replacing re assembling the paper cassette remove the old grease and apply a suitable amount of grease onto both sides of the paper cassette referring to the figure below Fig 4 14 Taptite cup M3x8 Side guide gear Friction spring Side guide rack...

Page 80: ...2 Remove the two M3x8 Taptite screws to remove the access cover Fig 4 15 3 Remove the two M3x6 Taptite screws securing the network board 4 Disconnect the connector connected with the main PCB and remove the network board Fig 4 16 Network board Rear cover Access cover Taptite bind M3x8 Taptite cup M3x6 ...

Page 81: ...ws from the main cover Fig 4 17 3 Position the front cover at the angle of 45 degrees and release the bosses at the right and left hand sides and the link at the left hand side 4 Remove the front cover Fig 4 18 Front cover Taptite bind M3x8 Taptite bind M3x8 Front cover Front cover Link 45 boss boss Main cover Step 3 ...

Page 82: ... forwards Fig 4 19 3 Open the rear cover then release the hooks A at the right and left hand sides of the top cover while pushing them towards the side of the printer from the rear 4 Lift up the top cover and release the hooks B at the right and left hand sides of the top cover to remove the top cover Fig 4 20 Taptite cup M3x10 Taptite cup M3x10 Top cover Step 2 Top cover hook B hook B hook A Rear...

Page 83: ...ig 4 21 3 7 Main Cover 1 Remove the two M3x8 Taptite screws from the rear of the main cover 2 Release the hooks at the right and left hand top sides of the printer then while pulling the cover outwards to clear the power socket and switch lift up the main cover to remove it complete with the rear cover Fig 4 22 Top cover Second eject roller ASSY Rear cover Taptite bind M3x8 hook hook Main cover St...

Page 84: ...e main cover 5 Remove the rear cover complete with the rear cover springs Left and Right from the main cover 6 Remove the four pinch rollers and four pinch roller springs by moving them to the vertical and then removing them by lifting them upwards Fig 4 24 Tray extension flap Main cover Rear cover Rear cover Main cover Rear cover spring R L Pinch roller Pinch roller spring Pinch roller Step 4 Ste...

Page 85: ...ide the laser unit If there is any dirt or dust on the mirror or lens blow it off using an air gun Never touch the scanner window on the printer body If there is any dirt or dust on the window blow it off using an air gun If cleaning the underside of the scanner window wipe off dirt or dust with soft clean paper Refer to subsection 3 3 Cleaning the Scanner Window in CHAPTER 5 Fig 4 26 Taptite cup ...

Page 86: ...PCB harness from the hooks 4 Carefully lift the drive unit and while supporting the PCB disconnect the main motor connector 5 Remove the drive unit Fig 4 27 6 Remove the four M3x6 Taptite screws to remove the main motor ASSY from the drive unit Fig 4 28 Taptite cup M3x6 Taptite cup M3x6 Taptite cup M3x6 Taptite cup M3x6 Taptite cup M3x6 Main motor ASSY Main motor connector Drive unit Heater harnes...

Page 87: ...otor remove the old grease and apply a suitable amount of grease referring to the figure below Fig 4 29 7 Remove the development joint complete with the joint spring then remove the link Fig 4 30 Grease Molykote PG 662 1 rice grain size Joint spring Development joint Link Main motor ASSY ...

Page 88: ...ng the fixing unit taking care not to lose the contact spring fitted to the front left hand Fig 4 31 NOTE When re assembling the fixing unit ensure you do not forget to refit gear 59 5 Lift up the fixing unit and move it toward you and to the left to allow the drive gear to clear the frame and then disconnect the thermistor connector from the engine PCB 6 Remove the fixing unit from the main frame...

Page 89: ... frame Fig 4 33 7 Remove the M3x10 screw to remove the star wheel holder ASSY from the fixing unit by lifting the left hand end of the assembly slightly and then moving the assembly to the right to release the right hand end from the fixing unit frame Fig 4 34 Main frame Fixing unit concavity Fixing unit Main frame Fixing unit Star wheel holder ASSY Screw bind M3x10 ...

Page 90: ...0 Release the two hooks at the right and left sides securing the fixing unit cover to the fixing unit frame Fig 4 35 11 Remove the fixing unit cover from the fixing unit frame Fig 4 36 Fixing unit frame Fixing unit cover hook hook hook hook Fixing unit frame hook Thermistor harness hook Taptite cup M3x20 Thermistor harness Taptite cup M3x20 Fixing unit frame hook hook ...

Page 91: ...ure that the direction of the halogen heater lamp is correct referring to the figure above CAUTION Never touch the surface of the halogen heater lamp When securing the screw to assemble the halogen lamp connector plate ensure you use the plastic jig as shown in the figure below to avoid damaging the edge of the halogen heater lamp Fig 4 38 Halogen heater lamp Heat roller Taptite pan M3x10 Screw cu...

Page 92: ...ve the two washers then remove the bearing Fig 4 39 CAUTION Never touch the surface of the heat roller NOTE When re assembling the heat roller to the fixing unit frame place the two projections at the right hand side of the roller onto the bosses on the frame as shown in the figure below Fig 4 40 Heat roller Heat roller bearing Heat roller gear Heat roller bearing Washer Heat roller gear Heat roll...

Page 93: ...g onto the heat roller so that the embossment whose thickness is 0 5mm is at the top Fig 4 41 When re assembling the heat roller to the fixing unit frame ensure you do not damage the heat roller with the four hooks on the fixing unit frame Fig 4 42 Heat roller Heat roller Fixing unit frame Heat roller bearing hooks embossment hooks Heat roller gear ...

Page 94: ... is seated correctly in the locating channel and does not protrude from either end 18 Remove the pressure roller from the fixing unit cover by gently levering the right hand side upwards to release it from the bearing and then sliding it to the right to remove it 19 Remove the pressure roller cleaner complete with the cleaner spring from the fixing unit cover by lifting it upwards until the spring...

Page 95: ...rectly in the locating channel and does not protrude from either end 21 Release the thermistor harness from the hooks on the fixing unit frame and then remove the one M3x12 Taptite screw and remove the thermistor Fig 4 45 NOTE When re assembling the thermistor to the fixing unit frame ensure the direction of the thermistor is correct referring to the figure below Fig 4 46 Thermistor Taptite cup M3...

Page 96: ...o the left until the slot in the roller shaft aligns with the slot in the frame and then remove the roller by pulling it forwards Fig 4 47 23 Remove the eight eject pinch rollers and pinch springs by lifting them upwards until the springs release from the frame Fig 4 48 Fixing unit frame Idle gear 13 First eject roller Fixing unit frame Pinch spring Eject pinch roller ...

Page 97: ...ezers Fig 4 48a 25 Release the paper eject actuator from the hook on the fixing unit cover and then slide the paper eject actuator to the right direction to remove the paper eject actuator and the eject paper spring from the fixing unit cover Fig 4 48b Pick off finger Tweezers Pick off finger Film PR2000057 Paper eject actuator Eject actuator spring Fixing unit cover ...

Page 98: ...ng the paper eject actuator and the eject paper spring to the fixing unit cover ensure the paper eject actuator is seated correctly in the locating channel referring to the figure below Fig 4 48c PR2000057 Paper eject actuator Fixing unit cover Eject actuator spring ...

Page 99: ...e plate to the rear of the printer to remove it CAUTION Do not remove the ground wire connected to the base plate if it is not necessary to remove the low voltage power supply unit Unnecessary disconnection of the ground wire may cause increased printer noise Fig 4 48 Taptite bind M4x10 Taptite bind M3x8 Taptite bind M3x8 Taptite bind M3x8 Taptite bind M3x8 Base plate Main frame Ground wire connec...

Page 100: ... fixed into the slit on the plastic chute referring to the figure below Fig 4 49 When securing the screws to assemble the base plate ensure you use the jig shaft referring to the figure below so that the engine PCB is assembled correctly Fig 4 50 Taptite bind M4x10 Taptite bind M4x10 Main frame Base plate Jig shaft slit Ground wire Plastic chute Main frame ...

Page 101: ...n sheet and remove the main PCB ASSY 3 Disconnect the three connectors for the low voltage power supply engine PCB and LD Fig 4 51 3 13 Lower Tray Relay PCB ASSY for HL 1250 1270N only 1 Remove the M3x6 Taptite screw and remove the lower tray relay PCB ASSY Fig 4 52 Taptite cup M3x6 Lower tray relay PCB ASSY Lower tray relay PCB ASSY Main frame Screw M3x8 Insulation sheet Main PCB Low voltage powe...

Page 102: ...4 53 4 Remove the M3x6 Taptite screw securing the AC inlet holder 5 Turn the AC inlet to the right to release it and remove the AC inlet ASSY and the low voltage power supply PCB together Fig 4 54 NOTE When re assembling the AC inlet holder fix the holder onto the positioning bosses first then secure it to the frame with the screw Refer to the figure above Taptite bind M3x8 AC inlet holder Low vol...

Page 103: ...ure to attach the film to the AC inlet ASSY in the following cases referring to the figure below If the film is not attached to the AC inlet on the printer you are servicing If the film is damaged or the adhesive is weak Fig 4 55a PR99188 AC inlet ASSY Film ...

Page 104: ...NOTE When re assembling the T R electrode helical spring onto the plate press the spring onto the plate firmly with a flat bladed screwdriver and ensure that it is retained securely CAUTION The high voltage power supply PCB has been upgraded from the middle of September 99 production to improve the print quality In accordance with the change the T R electrode helical spring has been also changed A...

Page 105: ...d the frame When re assembling the engine PCB or high voltage power supply PCB ensure the central connector is connected correctly The engine PCB has been upgraded from the middle of September 99 production to improve the print quality As we supply both old and new versions of engine PCB ensure that you replace the same version of the engine PCB The old and new versions are incompatible each other...

Page 106: ... drive unit and disconnect the solenoid connector on the engine PCB before removing the solenoid ASSY 1 Place the main frame so that the drive unit side is at the top 2 Release the catch and remove the planetary gear from the paper pick up roller shaft 3 Remove the planetary gear from the paper feed roller shaft and gear 56 Fig 4 58 Planetary gear for paper pick up roller Planetary gear for paper ...

Page 107: ...he U shaped groove of the lever is fitted onto the rod in the solenoid correctly referring to the figure above 5 Place the main frame the right way up and remove gear 59 if not removed earlier during fixing unit removal Fig 4 60 NOTE When re assembling the solenoid ensure you do not forget to refit gear 59 Clutch lever spring Clutch lever for paper pick up roller Clutch lever for paper feed roller...

Page 108: ...remove the cassette guide L F Fig 4 61 8 Remove the M3x4 screw and the tape on the solenoid harness and remove the solenoid ASSY Fig 4 62 CAUTION When removing the solenoid the solenoid rod and spring may come off Be careful not to lose them Refer to the figure above Taptite cup M3x6 Cassette guide L F Screw bind M3x4 Solenoid ASSY Main frame Tape Rod Step 7 Spring ...

Page 109: ...motor ASSY is at the top 2 Remove the two M3x6 Taptite screws securing the fan cover 3 Remove the fan motor ASSY with the fan cover and remove the fan motor ASSY from the cover Fig 4 63 NOTE When re assembling the fan motor fix the harness into the groove on the motor then fix the motor onto the bosses Fig 4 64 Taptite cup M3x6 Taptite cup M3x6 Fan motor ASSY Fan cover Main frame Manufacturer stic...

Page 110: ...or PCB ASSY light emission and remove it Fig 4 65 3 20 Toner Sensor PCB ASSY Light Reception NOTE Be sure to disconnect the toner sensor light reception connector on the engine PCB before removing the toner sensor PCB ASSY light reception 1 Remove the one M3x6 Taptite screw and release the hooks then remove the toner sensor PCB ASSY light reception Fig 4 66 Toner sensor PCB ASSY light emission hoo...

Page 111: ... 20 from the main frame 3 Remove the bearing from the paper pick up roller shaft 4 Release the hook on the bearing at the other side of the shaft and remove the paper pick up roller ASSY and the shaft from the main frame Fig 4 67 5 Remove the bearing and the paper pick up roller ASSY from the shaft Fig 4 68 Bearing Main frame Paper pick up roller ASSY hook Paper pick up roller ASSY Paper pick up r...

Page 112: ...ily if it is not fully released before the gear is pulled to remove it Ensure that the hook is fully released BEFORE attempting to remove gear 21 2 Turn the main frame the right way up 3 Unhook the hook on the bearing then slightly slide the paper feed roller ASSY to the drive unit side 4 Lift up and remove the paper feed roller with the bearing and joint and remove the bearing and joint from the ...

Page 113: ...3 23 Outer Chute 1 1 Remove two M3x6 Taptite screws and two M3x8 Taptite screws to remove the outer chute 2 ASSY 2 Unhook two hooks using a slotted screwdriver and then remove the outer chute 1 Fig 4 70a PR2000051 Outer chute 1 Outer chute 2 ASSY ...

Page 114: ...CHAPTER 4 DISASSEMBLY AND RE ASSEMBLY 4 40 4 PACKING Fig 4 71 Insertion sheet AC Cord Accessory bag Pad Accessory carton Drum Unit with Toner Cartridge included Pad Printer Carton ...

Page 115: ... parts described in this section are parts which are subject to deterioration or damage and should be replaced at least once during the period of warranty of the product if any print quality problem appears 1 1 Drum Unit The Drum LED is on when the drum unit is nearly at the end of its life Life expectancy 20 000 pages NOTE There are many factors that determine the actual drum life such as tempera...

Page 116: ...ght the unit may be damaged Handle the drum unit and toner cartridge carefully If toner scatters on your hands or clothes wipe or wash it off with cold water immediately Do not reset the page counter when replacing the toner cartridge only 1 2 Toner Cartridge Toner low The Data and Alarm LEDs blink once every five seconds Toner empty The Data and Alarm LEDs blink once every second Life expectancy ...

Page 117: ...ately before you need to install it into the printer If a toner cartridge is left unpacked for a long period of time the toner life is shortened If an unpacked drum unit is subjected to excessive direct sunlight or room light the unit may be damaged Use a Brother genuine toner cartridge which is specially formulated to ensure top print quality Printing with a 3rd party toner or toner cartridge may...

Page 118: ...d below should be replaced at the service center referring to the service life For the procedures to replace these parts refer to CHAPTER 4 DISASSEMBLY AND RE ASSEMBLY Parts Name Part No Qty Service life number of prints Replacement Procedure Fixing Unit 120V LJ4164001 1 50 000 pages See P 4 18 Fixing Unit 230V LJ4168001 1 50 000 pages See P 4 18 Separation Pad Holder ASSY UL9084001 1 50 000 pages...

Page 119: ...tely before turning the power on again CAUTION Use water or neutral detergents for cleaning Cleaning with volatile liquids such as thinners or benzene will damage the surface of the printer 3 2 Cleaning the Drum Unit When replacing the drum unit or toner cartridge with a new one be sure to clean the drum unit 1 Turn off the power switch and unplug the power cord 2 Remove the drum unit from the pri...

Page 120: ...magenta in the figures below with a soft dry cloth Fig 5 8 CAUTION Do not touch the scanner window with your fingers Do not wipe the scanner window with cleaning alcohol isopropyl 3 4 Clean the Electrical Terminals To obtain the best print performance be sure to clean the electrical terminals inside the printer body 1 Turn off the power switch and unplug the power cord 2 Remove the drum unit from ...

Page 121: ...CHAPTER 5 PERIODIC MAINTENANCE 5 7 4 MTBF MTTR The meantime between failure MTBF and the meantime to repair MTTR for this printer are as follows MTBF Up to 4 000 hours MTTR Average 30 minutes ...

Page 122: ...CHAPTER 5 PERIODIC MAINTENANCE 5 8 ...

Page 123: ... or printed images may be blurred The print paper is damped If so use fresh paper and check whether the print quality improves or not The print paper is short grained paper or acid paper If so print quality problems may occur For further information on paper refer to subsection 3 5 Paper in CHAPTER 1 3 Consumable parts Check if The Toner LED is not lit on the printer control panel when a toner car...

Page 124: ...correct images Instruct the user to allow the unit to come to room temperature before unpacking it This will take one or two hours 1 2 Warnings for Maintenance Work To avoid creating secondary problems by mishandling follow the warnings below during maintenance work WARNING 1 Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the prin...

Page 125: ...r does not start printing 3 2 Error Message Printouts 4 1 Paper Loading Problems 4 2 Paper Jams 5 Software Setting Problems Status monitor error message appears Paper jam occurs Printed image has a problem 7 Image Defects 4 2 Paper Feeding Problems Printout is not correct 8 Incorrect Printout Printed page has a problem 2 1 Operator Calls 2 2 Service Calls 6 Malfunctions 3 1 Error Messages in the S...

Page 126: ...r Load paper into the printer and press the panel button Misfeed Re install the paper and press the panel button Alarm Data LEDs are blinking every 5 seconds Toner low Indicates that the toner cartridge is nearly empty Purchase a new toner cartridge in order to be ready for when the toner empty message is indicated Alarm Data LEDs are ON Toner empty Replace the toner cartridge with a new one 2 2 S...

Page 127: ... M 12 Engine interface error Main Motor Malfunction See M 3 Main motor does not rotated NV RAM Error See M 10 NV RAM error CPU Runtime Error See M 11 CPU runtime error PCI Bus Error See M 13 PCI bus error Refer to the further description of these errors as follows Service A Address Error Service B Bus Error CPU Runtime Error A CPU error other than the above two defects such as an Illegal Instructi...

Page 128: ...OW Indicates that the toner cartridge is nearly empty Purchase a new toner cartridge in order to be ready for when the toner empty message is indicated TONER EMPTY Replace the toner cartridge with a new one PRINT OVERRUN 1 Press the panel button to print the data remaining in the printer 2 Reduce the complexity of the document or reduce the print resolution 3 For HL 1250 1270N only Expand the prin...

Page 129: ...he same error occurs again see M 8 Scanner failure D RAM ERROR Turn the power switch off wait a few seconds and then turn it on again If the same error occurs again see M 10 ROM error D RAM error NV RAM error NV RAM ERROR Turn the power switch off wait a few seconds and then turn it on again If the same error occurs again see M 10 ROM error D RAM error NV RAM error MAIN MOTOR ERROR Turn the power ...

Page 130: ...ion 1 Reduce the complexity of the document before printing to prevent automatic reduction of the resolution 2 For HL 1250 1270N only Expand the printer memory by adding a commercially available SIMM SERIAL INTERFACE FRAMING ERROR HL 1250 only 1 Press the panel button to resume printing 2 Check the communication parameter settings such as baud rate and stop bit on both the PC and printer are the s...

Page 131: ...mm in depth 3 Check that manual feed mode is not selected in the printer driver The printer does not load paper from the manual feed slot 1 Re install the paper firmly into the manual feed slot one sheet at a time 2 Check that manual feed mode is selected in the printer driver The printer will not load envelopes Check that envelopes are loaded into the manual feed slot The application software mus...

Page 132: ...h of the printer Fig 6 3 5 Open the rear cover and pull the jammed paper out of the fixing unit If you have to pull the paper towards the back of the printer the fuser may get dirty with toner powder and may result in toner scatter on the next printed page or pages Print a few copies of the test page until the toner scatter on the printed pages stops Fig 6 4 6 Close the rear cover 7 Install the dr...

Page 133: ...the rubber pick up roller Remove the paper dust attached to the pick up roller If the rubber is worn out replace it with a new one Top of paper stopped at 35mm from the contact point of the heat roller and pressure roller Jam caused by the paper sensed as not being ejected from the paper eject sensor The paper eject sensor is not working properly and has not turned off single printing Check sensor...

Page 134: ...paration pad worn out Yes Replace the separation pad F 2 Wrinkles or creases User Check 1 Check that paper is loaded into the paper cassette correctly 2 Check the paper used meets the recommended paper specifications 3 Try printing using the straight through output path 4 Turn over the stack of paper in the cassette or try rotating the paper 180 in the cassette Possible cause Step Check Result Rem...

Page 135: ... Check the paper used meets the recommended paper specifications F 4 Curl or Wave User Check 1 Check the paper used meets the recommended paper specifications Both high temperature and humidity will cause paper to curl 2 If the printer is used infrequently the paper may have sat for too long in the paper cassette Turn over the stack of paper in the paper cassette Also try rotating the paper 180 in...

Page 136: ...o the same port which is also connected to a mass storage device or scanner Remove all other devices and connect the port to the printer only Turn off the printer status monitor in the device options tab in the printer driver 5 If the print port is set as an ECP port change it to a normal port 6 Try printing the test page referring to Subsection 10 1 Test Print Mode in this chapter 7 Try resetting...

Page 137: ...Check 1 Check that the DOS application software interface settings match that of your printer 2 Check if the printer has any printer alarms active 3 Check if the appropriate printer is selected in your application software 4 HL 1250 only If the serial interface is used check that the RS 232C serial interface is selected with the slide switch Check that the interface settings are correctly set up w...

Page 138: ...it possible to print with another PC and cable No Replace the RS 100M Yes This problem may appear under the specified system environment Check the environment which the user used S 5 Although the USB driver is installed it is unable to find the BRUSB port HL 1240 1250 1270N only User Check 1 Re install the USB driver by following the steps below i Double click the file DeinsUSB exe in the USB dire...

Page 139: ...he printer is turned on and the USB interface cable is connected correctly Check that the USB cable used is the shielded twisted pair type and 5 m or less Try to connect the printer and PC with the USB cable directly Driver installation 2 Are there the following files in the Extensions Folder of System Folder No Try to re install the printer driver For System 8 6 or higher BR_Backgrounder BR_Print...

Page 140: ...wer plug Yes Replace the AC power cord M 2 No DC power supplied Possible cause Step Check Result Remedy AC power supply 1 Is AC power supplied between connectors CN1 L and CN1 N when the power plug is plugged into the outlet No Follow the same check procedure of M 1 No AC power supplied Wiring DC load 2 Turn off the power switch and disconnect the P3 and P5 connectors on the engine PCB Turn on the...

Page 141: ... Is the contact of the solenoid connector on the engine PCB good No Reconnect the connector Engine PCB circuit 2 Set paper in the manual paper slot and make a test print by pressing the control panel button Yes Replace the engine PCB Paper pick up clutch solenoid Does the voltage between pins 2 SOLENOID and 1 24V of the P13 connector on the engine PCB change from approx 24V DC to 0V within the spe...

Page 142: ...e Possible cause Step Check Result Remedy Poor thermistor harness contact 1 Is the contact of connector P6 on the engine PCB good No Reconnect the connector Blown thermal fuse 2 Remove the fixing unit and measure the resistance of the thermistor Is it open circuit Yes Replace the fixing unit Thermistor failure 3 Is the thermistor installed properly Yes Replace the fixing unit No Reinstall the ther...

Page 143: ...or Blown thermal fuse 2 Remove the fixing unit and measure the resistance between the input connectors Is it open circuit Yes Replace the fixing unit Thermistor failure 3 Is the thermistor installed properly Yes Replace the fixing unit No Reinstall the thermistor properly Halogen heater lamp failure 4 Remove the fixing unit and measure the resistance of the halogen heater lamp Is it open circuit Y...

Page 144: ...fic data printer condition and system environment M 12 Engine interface error Possible cause Step Check Result Remedy Fixing unit ground wire connection 1 Is the ground wire on the fixing unit secured with the shoulder screw correctly No Secure the ground wire correctly with the shoulder screw Harness connection failure 2 Is the connection between connector P6 on the main PCB and connector P3 on t...

Page 145: ...i n t o u t t e s t p r i n t o u t t e s t p r i n t o u t t e s t P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o u t t e s t p r i n t o u t t e s t P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o u t t e s t p r i n t o u t t e s t P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o u t t e ...

Page 146: ...aced with a full one Yes The wiper of the toner cartridge is defective Replace the toner cartridge Drum connection failure 3 Are all the contacts between the drum unit and printer body connected correctly No Clean contact electrodes both on the drum unit and in the printer body High voltage power supply PCB failure 4 Is the harness connection between the high voltage power supply PCB and the engin...

Page 147: ...one High voltage power supply PCB failure 4 Is the connections of the connector between the high voltage power supply PCB and the engine PCB secured correctly Yes Replace the high voltage power supply PCB Main PCB failure 5 Are there any disconnected connectors No Replace the main PCB Engine PCB failure 6 Are there any disconnected connectors No Replace the engine PCB User Check 1 Check the paper ...

Page 148: ...roblem solved after replacing the drum unit Yes Replace the drum unit Toner cartridge failure 4 Is the problem solved after replacing the toner cartridge Yes Replace the toner cartridge with a new one Scanner harness connection failure 5 Is the scanner harness connected securely Check if there is any play in the connection No Reconnect the connector correctly Main PCB failure 6 Are printing signal...

Page 149: ...lean both electrodes Harness connection 4 Is the laser unit connected to the main PCB correctly No Connect the harness between the laser unit and the main PCB correctly High voltage power supply PCB failure 5 Is the problem solved after replacing the high voltage power supply PCB Yes Replace the high voltage power supply PCB Main PCB failure 6 Is the problem solved after replacing the main PCB Yes...

Page 150: ...em may disappear after printing a few pages Fig 6 6 How to clean the pressure roller Clean the pressure roller as follows 1 Set three or more sheets of paper in the paper cassette 2 Open the front cover and turn on the power switch while holding down the control panel button 3 Release the panel button when the Drum LED is on 4 Close the front cover 5 Hold down the panel button until the Ready LED ...

Page 151: ...the drum surface dirty with toner in streaks Yes Replace the drum unit Scratch on the heat roller 5 Is the surface of the heat roller scratched Yes Replace the fixing unit NOTE If you print the same pattern continuously the drum will be worn and black vertical streaks will appear on the paper This problem may occur with noise due to the corona wire being dirty In that case clean the corona wire wi...

Page 152: ...4 Are the charge electrodes between the printer body and the drum unit dirty Yes Clean both electrodes High voltage power supply PCB failure 5 Is the problem solved after replacing the high voltage power supply PCB Yes Replace the high voltage power supply PCB I 8 Black vertical streaks in a gray background Possible cause Step Check Result Remedy Ground contacts Translucent stain on the scanner wi...

Page 153: ... electrodes at both sides User Check 1 Try to wipe the scanner window with a soft cloth 2 The toner cartridge may be damaged Install a new toner cartridge 3 Check the printer s environment High temperature and high humidity conditions can cause this problem 4 Damp wet paper might be used Try to change to freshly unpacked paper User Check 1 Check the paper used meets the recommended paper specifica...

Page 154: ...ar registration sensor normal No Reposition the sensor to the correct position I 12 Poor fixing Possible cause Step Check Result Remedy Print paper 1 Is thick paper of more than 43lb being used Yes Recommend to use the specified types of paper Toner sensing failure When printing is faint 2 Is the problem solved by replacing the drum unit or the toner cartridge Yes 1 Toner is empty 2 The toner sens...

Page 155: ... t t e s t p r i n t o P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o u t t e s t p r i n t o u t t e s t P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o u t t e s t p r i n t o u t t e s t P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o P r i n t o u t t e s t p r i n t o u t t e s t p r i...

Page 156: ...idge almost empty Yes Replace the toner cartridge with a new one Print paper 4 Is the problem solved after changing to specified freshly unpacked paper Yes Damp wet paper might be used Recommend to change freshly unpacked paper Environment 5 Does the problem still appear after the printer has warmed up Yes 1 Replace the drum unit 2 Advise the user of the specified print environment User Check 1 If...

Page 157: ...g at the surface of the photosensitive drum Fig 6 8 3 Wipe the surface of the photosensitive drum with a cotton swab until the dust or paper powder on the surface comes off Fig 6 9 CAUTION Do not wipe the surface of the photosensitive drum with something sharp ball point pen etc Use cleaning liquid which is a 50 50 mixture of ethyl alcohol and pure water Position of smudge on the drum 94mm interva...

Page 158: ...ace the fixing unit High voltage power supply PCB failure 3 Is the problem solved after replacing the high voltage power supply PCB Yes Replace the high voltage power supply PCB I 17 Black band Possible cause Step Check Result Remedy Ground contacts Corona failure 1 Is the wire cleaner at its home position No Return the wire cleaner to its home position Corona failure 2 Is the corona wire dirty Ye...

Page 159: ...e 4 Is the problem solved after replacing the drum unit Yes Replace the drum unit No Replace the high voltage power supply PCB NOTE The following cases increase the possibility of this problem Acid paper is being used The drum unit is at the end of its life There is dust or paper powder I 19 Hollow print Possible cause Step Check Result Remedy Print paper 1 Is thick paper of more than 43lb being u...

Page 160: ... voltage power supply PCB Yes Replace the high voltage power supply PCB I 21 Horizontal lines Possible cause Step Check Result Remedy Ground contacts Paper feed roller 1 Are the feed roller shaft and the ground contact connected correctly No Check the connection between the shaft and the ground contact Also check the ground contact on the back of the feed roller Refer to P 4 28 Paper cassette cont...

Page 161: ...to the normal mode from the driver setting 2 Print 5 or 6 blank pages if this problem occurs Drum unit failure 2 Is the problem solved after replacing the drum unit Yes Replace the drum unit High voltage power supply PCB failure 3 Is the problem solved after replacing the high voltage power supply PCB Yes Replace the high voltage power supply PCB User Check 1 Check the paper used meets the recomme...

Page 162: ...heck the paper used meets the recommended paper specifications A rough surfaced paper may cause the problem 2 The toner cartridge may be damaged Install a new toner cartridge 3 The drum unit may be damaged or may be nearly at the end of life Install a new drum unit ...

Page 163: ...g Contacts 7 3 1 Drum unit Fig 6 10 7 3 2 Printer body Paper cassette Fig 6 11 Drum Unit Paper Cassette Wire cleaner Charge Photosensitive drum Development roller Ground Grid Grid Charge Photosensitive drum Development roller Transfer roller Transfer roller ...

Page 164: ...If the print port is set as an ECP port change it to a normal port 7 Try printing the test page referring to Subsection 10 1 Test Print Mode in this chapter 8 Try resetting the factory settings Possible cause Step Check Result Remedy Failure inside the printer 1 Is it possible to print the test page with the method of Subsection 10 1 Test Print Mode in this chapter No Identify the error type then ...

Page 165: ... MEMORY FULL message User Check 1 Press the panel button to print the data remaining in the printer 2 Reduce the complexity of your document or reduce the printer resolution 3 Expand the printer memory by adding a commercially available SIMM HL 1250 1270N only NOTE This problem may appear if the data is too complex For the HL 1240 printer if it is not cleared by taking the actions above it will be...

Page 166: ...d be incorrect serial cable incorrectly wired or too long or incorrect setting of the computer serial interface P 6 The printer sometimes prints a couple of characters and then ejects the page HL 1240 1250 1270N only User Check For DOS environment only The application printer emulation setting and the printer s emulation do not match Check in the application software which printer you have selecte...

Page 167: ...dware or network problem a If you are using TCP IP Try pinging the print server from the host operating system prompt with the command ping ipaddress where ipaddress is the print server IP address note that in some instances it can take up to two minutes for the print server to load its IP address after setting the IP address If a successful response is received then proceed to the UNIX TCP IP Win...

Page 168: ... different port 5 If you have a bridge or router located between the print server and host computer make sure that the device is set up to allow the print server to send and receive data from the host For example a bridge can be set up to only allow certain types of Ethernet addresses to pass through a process known as filtering therefore such a bridge must be configured to allow Brother print ser...

Page 169: ...ent command Verify that the etc ethers file contains the correct Ethernet address and that the print server name matches the name in the etc hosts file 5 If you used bootp make sure that you started the bootp deamon on any UNIX workstation and bootp is enabled i e the is removed from the bootp entry in the etc bootptab file is correctly configured 6 Also verify that host computer and the print ser...

Page 170: ... remote printer rp name of TEXT in your etc printcap file 10 If you are using Sun Solaris V2 4 or earlier there is a bug which causes long print jobs to fail when using a print server If you are having trouble printing long jobs over 1MB add the line mx 0 to your etc printcap file entry 9 5 Windows NT LAN Server TCP IP Troubleshooting If you are having trouble printing with Windows NT or LAN Serve...

Page 171: ...This happens on some Windows 95 98 NT 4 0 computers Press the ALT and TAB keys to make it appear 2 Make sure that the print server is configured to be in the same workgroup or domain as the test of your computers It may take several minutes for the print server to appear in the network neighborhood 9 9 Internet Print TCP IP Troubleshooting 1 The first step in troubleshooting is to make sure that y...

Page 172: ... the print server name you used in PCONSOLE exactly matches the name that is configured in the print server and make sure it is defined as a Queue Server for the print queue 5 If you are running both 802 3 and Ethernet II frames on different file servers on your network there is a possibility that the print server may not make a connection to the desired file server Try forcing the frame type to t...

Page 173: ...later Apple introduced the Desktop Printer Utility This utility allows TCP IP printing from an i Mac G3 or later Macintosh 2 From the Internet Printer dialogue please ensure that you enter the correct service name in the Queue option For example for NC 3000 series network cards enter BRN_xxxxxx_P1_AT where xxxxxx is the last six digits of the MAC address of the NC 3000 series card For NC 2000 seri...

Page 174: ...list of the internal fonts The printer returns to the ready status after printing Alarm Factory Reset The printer is restored to the factory setting and permanent fonts and macros are cleared The printer returns to the ready status after printing Data Hex Dump Print HL 1240 1250 1270N only The printer can print data as hexadecimal values so that you can check data errors and problems To exit from ...

Page 175: ...ns print mode and NV RAM value dump mode Select the inspection mode you want to use following the steps below 1 Turn off the power switch of the printer 2 Open the front cover and turn on the power switch while holding down the control panel button 3 When the printer enters into the inspection mode the Drum LED is ON Holding down the panel button will cause the LEDs to turn ON in the order Drum Re...

Page 176: ...ner cartridge is installed Drum LED ON OFF No toner cartridge is installed Drum LED OFF Rear registration sensor ON Paper is detected Ready LED ON OFF No paper is detected Ready LED OFF Front registration sensor ON Paper is detected Alarm LED ON OFF No paper is detected Alarm LED OFF Upper paper cassette ON No paper cassette is installed Data LED ON sensor HL 1250 1270Nonly OFF The paper cassette ...

Page 177: ...ON OFF even if the panel button is not pressed 5 Check the rear registration sensor If the rear registration sensor is stuck backwards the Ready LED stays OFF error If the rear registration sensor is moved back and forth the Ready LED comes ON at any time error NOTE When checking the rear registration sensor with the drum unit removed to enable a reliable test to be carried out take the following ...

Page 178: ...elease the panel button 11 If all the sensors except the toner sensor are correct the printer goes back to the Ready status If any error is detected the printer stays in the inspection mode NOTE If the printer goes back to the Ready status after the toner sensor does not detect the drum unit the printer starts to recognize the main motor ...

Page 179: ... L November M December ID for factory 9 Kariya Plant A Mie Brother C BIUK J Buji Nan Ling Factory 1 Printer printed on the label attached on the rear of the main body X X X X X X G 9 J 1 1 1 1 0 1 2 Process unit imprinted on the aluminum bag Drum unit with toner cartridge 9 F 3 0 J 3 Drum unit printed on the bar code label attached inside the drum unit F 9 9 1 0 0 1 0 4 YEAR MONTH DATE FACTORY ID ...

Page 180: ...tached on the toner cartridge E 9 0 0 1 0 2 F 9 9 6 0 0 1 9 9 5 Laser unit on the laser unit 2 1 0 0 1 YEAR MONTH DATE FACTORY ID NO YEAR YEAR MONTH MONTH TONER LOT NO SERIAL NO SERIAL NO DATE NO ID NO 1 HL 1030 1240 1250 1270N FACTORY ID NO 2 Buji Nan Ling Factory FACTORY ID NO CARTRIDGE PRODUCTION INFO ...

Page 181: ...of each roller are listed below No Parts Name Diameter Circumference 1 Paper Feed Roller φ 14 0 mm 44 0 mm 2 Transfer Roller φ 15 20 mm 47 7 mm 3 Photosensitive Drum φ 29 97 mm 94 1 mm 4 Heat Roller φ 25 0 mm 78 5 mm 5 Pressure Roller φ 20 0 mm 62 8 mm 6 Development Roller φ 20 0 mm 39 0 mm ...

Page 182: ...250 1270Nstandardmodel Transparency 6 ppm after 5 min have passed Max speed Thin Paper 6 ppm after 5 min have passed Max speed Regular 6 ppm after 5 min have passed 12 ppm after 5 min have passed Thick Paper 6 ppm after 30 sec have passed 6 ppm after 30 sec have passed Thicker Bond Paper A6 3 75 ppm A6 3 75 ppm NOTE When a smaller size paper than A4 or Letter is printed the temperature on both edg...

Page 183: ...tion in APPENDIX 5 1 Print Configuration for HL 1240 1250 1270N only 1 Turn on the power switch of the printer while pressing the printer control panel button 2 Release the panel button when the Drum LED comes on 3 Press the panel button again and release it when the Ready LED comes on 4 Print the Print Configuration page The page counter and drum counter are printed at the right upper in Print Co...

Page 184: ... it when the Drum LED comes on 4 Print the Test Print page The page counter and drum counter are printed at the bottom of the Test Print Refer to the figure below Note that the drum counter is an actual page counter after a new drum unit is replaced and may be different from the drum unit life shown in the drum life bar For details see Section 2 How to Read the Drum Unit Life Sample HL 1030 for Eu...

Page 185: ...unter after a new drum unit is replaced the drum unit life may be different from the drum counter For details on the difference between the drum unit life and drum counter refer to the drum unit life calculation below How to calculate drum unit life Printing time for 1 page job in discontinuous printing 14 seconds Page counter reduced by the number of drum rotations Time of motor rotation 14 sec E...

Page 186: ...umber of printed pages in units of 1 and 1 000 Value in units of 1 The hexadecimal value stored in NV RAM is printed Example 000000E0D0D0D0D0D 0 00 00 0E 0D 0D 0D 0D 0D 60 000 x 0 600 x 0 14 13 13 13 13 13 79 Value in units of 1 000 Page counter indicated by units of 1 000 pages 0 99 pages 0 600 699 pages 6 100 199 pages 1 700 799 pages 7 200 299 pages 2 800 899 pages 8 300 399 pages 3 900 999 pag...

Page 187: ...inter Information in APPENDIX 5 To obtain the maintenance information you need to obtain and load the Maintenance Information utility which supplied on Service Databank by following the steps below 1 Download the Maintenance Information utility from the Printer Utility DB in Service Databank 2 Open the utility then select Decode the 4 byte data in the menu Fig A 4 3 Enter the 8 digit number as sho...

Page 188: ... drum unit change toner cartridge change and paper jam Fig A 8 Note that each maintenance information is counted under the conditions below Information Conditions Drum unit change When drum unit life is 100 pages or more and the drum counter is reset Maximum counter 63 Toner cartridge change When the toner cartridge is replaced after a Toner Empty error is stored in NVRAM then warming up completes...

Page 189: ... you how to clear the problem such as The printer can t print or The printer prints garbage or incorrect fonts 1 When you start the program the Help dialog box shown below appears Fig A 9 2 Select the problem you have had then the specified window appears 3 Follow the instructions that appear on the PC screen If the problem cannot be solved start the Diagnostics tool to create a log file which sho...

Page 190: ...eck if you can clear the problem using the Troubleshooting for printer won t print tool described in the previous section 1 When you start the program the dialog box shown below appears Follow the steps described in the box then click the OK button Fig A 10 2 The message below appears click the OK button if you want to check whether there is any incorrect data or not If you do not want to check it...

Page 191: ...result that the printer reported and click the A B or C button depending on the result 5 The created log file is shown on the PC screen The software will ask whether you wish to print the log file or not Send the log file created with this tool to investigate the problem to the authorized service center ...

Page 192: ... or page counter for all models only when the printer is connected to a parallel port 1 When you start the program the dialog box shown below appears Fig A 13 2 Select the LPT port you are using and click the OK button 3 The dialog box below appears and indicates the printer information printer ID version drum unit life page counter and drum counter Fig A 14 NOTE For how to read the Maintenance Da...

Page 193: ... life Development switching timing The developing bias is switched from 475V to 375V when 3 000 pages are printed Counted from the number of the drum rotation in non continuous printing Fixing temperature Transparency 163 C Thin paper 183 C Regular paper 195 C Thick paper 215 C Thicker Bond paper 215 C in non continuous printing Smaller size mode See APPENDIX 3 PRINT SPEEDS WITH VARIOUS SETTINGS ...

Page 194: ... A 15 3 If the optional LT 400 Lower Tray Unit is installed onto the HL 1250 1270N printer it is necessary to exchange the cassette supplied with the LT 400 Unit with the upper cassette already fitted into the printer Install the cassette originally fitted in the printer into the LT 400 Unit Failure to do so will cause paper jams as the paper cannot be fed from the lower cassette to the printer bo...

Page 195: ... PCB HVPS LASER UNIT USB I F P10 P3 P4 POLYGON MOTOR LASER T R CHG GRID DEV CN1 SOLENOID TONER SENSOR light reception FAN MOTOR TONER SENSOR light emission COVER SENSOR MAIN MOTOR P7 P6 P5 P3 P9 P10 P15 P2 P1 P12 P13 P14 REAR REGISTRATION SENSOR FRONT REGISTRATION SENSOR PANEL PCB PAPER EJECT SENSOR ENGINE PCB FIXING UNIT HL 1240 only ...

Page 196: ...LASER T R CHG GRID DEV CN1 SOLENOID TONER SENSOR light reception FAN MOTOR TONER SENSOR light emission COVER SENSOR MAIN MOTOR P7 P6 P3 P8 P9 P10 P15 P2 P1 P12 P13 REAR REGIST SENSOR FRONT REGIST SENSOR UPPER PAPER CASSETTE SENSOR PAPER EJECT SENSOR LOWER PAPER CASSETTE ENGINE PCB THERMISTOR HALOGEN HEATER LAMP FIXING UNIT SIMM RS 100M P5 P14 PANEL PCB ...

Page 197: ...D DEV CN1 SOLENOID TONER SENSOR light reception FAN MOTOR TONER SENSOR light emission COVER SENSOR MAIN MOTOR P7 P6 P3 P8 P9 P10 P15 P2 P1 P12 P13 REAR REGIST SENSOR FRONT REGIST SENSOR UPPER PAPER CASSETTE SENSOR PAPER EJECT SENSOR LOWER PAPER CASSETTE ENGINE PCB THERMISTOR HALOGEN HEATER LAMP FIXING UNIT SIMM P21PCI P5 P14 PANEL PCB P2 P1 NETWORK BOARD SW RJ45 Ethernet ...

Page 198: ...CODE UK4352000 B512040CIR 1 2 A 20 NAME Appendix 11 Main PCB Circuit Diagram HL 1030 1240 1 2 ...

Page 199: ...Appendix 12 Main PCB Circuit Diagram HL 1030 1240 2 2 CODE UK4352000 B512040CIR 2 2 A 21 NAME ...

Page 200: ...Appendix 13 Main PCB Circuit Diagram HL 1250 1270N 1 5 CODE UK4361000 B512049CIR 1 5 A 22 NAME ...

Page 201: ...Appendix 14 Main PCB Circuit Diagram HL 1250 1270N 2 5 CODE UK4361000 B512049CIR 2 5 A 23 NAME ...

Page 202: ...CODE UK4361000 B512049CIR A 24 NAME Appendix 15 Main PCB Circuit Diagram HL 1250 1270N 3 5 ...

Page 203: ...CODE UK4361000 B512049CIR 4 5 A 25 NAME Appendix 16 Main PCB Circuit Diagram HL 1250 1270N 4 5 ...

Page 204: ...CODE UK4361000 B512049CIR 5 5 A 26 NAME Appendix 17 Main PCB Circuit Diagram HL 1250 1270N 5 5 ...

Page 205: ...Appendix 18A Engine PCB Circuit Diagram OLD CODE UK4444000 B512059CIR A 27 NAME ...

Page 206: ...Appendix 18B Engine PCB Circuit Diagram NEW CODE UK4444000 B512059CIR A 28 NAME ...

Page 207: ...Appendix 19 Network Board Circuit Diagram HL 1270N CODE LJ8107000 B512058CIR A 29 NAME ...

Page 208: ...3 R204 R110 R111 R116 R130 PC2 R114 VR101 R113 C111 D105 R115 C102 J105 or R215 D6 C11 D5 R8 C9 VR1 D9 R18 R2 R3 FG BEA1 D14 NTC1 D11 C1 Z1 L1 C22 R23 R21 R20 N L F1 L2 R22 CN1 PC2 TRA1 Z2 C16 T1 C109 D101 BEA101 PC1 R112 R213 R205 Q201 R212 L201 D203 C205 C203 R211 R201 C202 R207 IC101 VCC 10 Cosc 9 5 REF1 4 K1 3 GND 2 OUT 1 8 7 6 C110 C112 CN101 24V 5V 2 6 GND 1 3 4 5 7 HEAT ON D102 C7 Q1 R19 D8...

Page 209: ...3 R204 R110 R111 R116 R130 PC2 R114 VR101 R113 C111 D105 R115 C102 J105 or R215 D6 C11 D5 R8 C9 VR1 D9 R18 R2 R3 FG BEA1 D14 NTC1 D11 C1 Z1 L1 C22 R23 R21 R20 N L F1 L2 R22 CN1 PC2 TRA1 Z2 C16 T1 C109 D101 BEA101 PC1 R112 R213 R205 Q201 R212 L201 D203 C205 C203 R211 R201 C202 R207 IC101 VCC 10 Cosc 9 5 REF1 4 K1 3 GND 2 OUT 1 8 7 6 C110 C112 CN101 24V 5V 2 6 GND 1 3 4 5 7 HEAT ON D102 C7 Q1 R19 D8...

Page 210: ... R102 C108 R106 C101 R104 R123 R124 R125 R126 R127 VR101 R134 R105 R82 D81 R95 R94 R93 Q82 C82 R24 R23 R34 R36 VR21 Q22 R43 VR22 RB2 CB2 CB1 R25 R18 R16 R12 R11 R5 R6 R4 R3 R10 R14 R22 R31 Q21 D84 D83 C84 C109 R96 C85 D87 D88 D111 R100 R99 R98 R97 C83 D86 C103 C105 C104 C106 C102 C107 R107 R128 D101 R109 R110 R112 D108 D110 R113 R121 DEVCH DEV2 DEV1 0V CHG 24V 2 1 24V 0V C22 C21 C26 D25 D24 R44 R4...

Page 211: ...14 R84 R83 R85 R102 C108 R106 C101 R104 R123 R124 R125 R126 R127 VR101 R134 R105 R82 D81 R95 R94 R93 Q82 C82 R24 R23 R36 R34 VR21 Q22 R43 VR22 RB2 CB2 CB1 R25 R18 R16 R12 R11 R5 R6 R4 R3 R10 R14 R22 R31 Q21 D84 D83 CB81 CB82 RB82 RB81 C83 D86 C103 C105 C104 C106 C102 C107 R107 R128 D101 R109 R110 R112 D108 D110 R113 R121 DEV2 DEVCH DEV1 0V CHG 24V 2 1 24V 0V CN2 CN1 C22 C21 C26 D25 D24 R44 R45 R46...

Page 212: ...gine PCB Check the pin number of the connector on one of the high voltage power supply PCB and engine PCB which connects those two PCBs While the old version has 7 pins the new version has 8 pins The figure below indicates the connector on the Engine PCB Fig A 16 T R electrode helical spring Chute The size of the T R electrode helical spring is different between the old and new versions While the ...

Page 213: ... A 3 cleaner 3 25 cleaner spring 4 24 cleaning 5 5 completely blank 6 26 component 2 2 condensation 6 1 connection diagram A 16 A 18 consumable parts 5 1 6 1 continuous grid pattern print mode 6 53 control panel 1 4 1 6 2 13 control panel button 2 15 corona wire 3 21 3 25 COVER OPEN 6 6 cover sensor 3 24 CPU 1 6 CPU Runtime Error 6 5 6 22 creases 6 12 curl 6 13 D dark 6 25 Data LED 2 14 demo print...

Page 214: ...solution Control 1 2 high voltage power supply 3 20 high voltage power supply PCB 3 22 4 31 circuit diagram A 32 A 33 hollow print 6 37 horizontal lines 6 38 HRC 1 2 humidity 1 7 I IEEE1284 3 7 image defect 6 23 all black 6 27 black band 6 36 black horizontal stripes 6 30 black spots 6 36 black vertical streaks 6 29 black vertical streaks in a gray background 6 30 blurred horizontal stripes 6 30 b...

Page 215: ...d 6 18 no paper supplied 6 19 NVRAM error 6 22 ROM error 6 22 scanner failure 6 21 Service A 6 22 Service B 6 22 management utility 1 8 manual duplex 2 11 manual feed paper guide 1 4 manual feed slot 1 4 2 10 memory 1 6 MEMORY FULL 6 6 6 8 MISFEED 6 6 modular jack for lower tray unit 1 4 MTBF 5 7 MTTR 5 7 N NetBIOS 6 49 network 1 3 speed 1 8 type 1 8 network board 1 4 2 17 4 10 network interrface ...

Page 216: ...atus monitor 1 1 protocol 1 8 Q Quick Print Setup 1 1 R RAM check 6 53 Ready LED 2 13 rear cover 1 4 4 14 rear registration sensor 3 23 rear registration sensor lever 3 21 recommended paper 1 9 Remote Printer Console 1 2 reset IC 3 16 resolution 1 1 1 5 RESOLUTION ADAPTED 6 6 6 8 ROM 3 10 ROM code reprogramming mode 6 53 ROM Error 6 5 6 22 RPC 1 2 S scanner failure 6 21 Scanner Malfunction 6 5 6 7...

Page 217: ...ight emission 4 37 light reception 4 37 toner specks 6 40 top cover 4 12 torque values 4 1 T R electrode helical spring 4 31 transfer roller 3 25 3 28 transparency 1 8 tray extension flap 1 4 4 14 U USB 1 6 USB interface 1 2 1 4 3 7 USB interface cable 2 7 USB port 2 9 UNIX 6 47 unpacking 2 2 W warm up 1 5 warning 6 2 wave 6 13 weight 1 7 white horizontal stripes 6 31 white spots 6 34 white vertic...

Page 218: ...INDEX vi ...

Page 219: ...er Printer PARTS REFERENCE LIST MODEL HL 1030 1240 1250 1270N Read this list thoroughly before maintenance work Keep this list in a convenient place for quick and easy reference at all times September 1999 PL PRN001 ...

Page 220: ...201A Revision No marked on the power supply printed circuit board Rev A 2 Design changed parts If the parts are changed any one of the following symbols is indicated in the REMARKS column A compatible between old and new B replaceable from old to new D incompatible newly established 3 The original of this list was made based on the information available in September 1999 4 Parts are subject to cha...

Page 221: ...FEEDER 3 4 FIXING UNIT 5 5 PAPER CASSETTE 7AB 6 COVERS 9 7 MAIN PCB 11 8 ENGINE PCB 13 9 LOW VOLTAGE POWER SUPPLY PCB 13 10 HIGH VOLTAGE POWER SUPPLY PCB 15 11 AC CORDS 15 12 ACCESSORIES 17 13 PACKING MATERIALS 19 14 NETWORK BOARD 19 15 ADJUSTING TOOL 21 ...

Page 222: ...TONER EMPTY PCB UNIT LIGHT RECEPTION B512037 13 087320616 1 TAPTITE CUP S M3X6 14 LJ8031001 1 LT RELAY PCB ASSY HL 1250 1270N B512060 15 087320616 1 TAPTITE CUP S M3X6 16 LE1169001 1 USB GROUND PLATE HL 1270 17 UL8970001 1 SOLENOID RELEASE SPRING 30 99 18 LJ5591001 1 PLANET GEAR ASSY SP 19 UL8985001 1 GEAR 59 MODEL HL 1030 1240 1250 1270 1270N 84U Z04 Z01 Z02 Z05 Z03 010 T I NO PR99165 PR2000014 P...

Page 223: ... Z02 Z05 Z03 010 1 FRAME DRIVE UNIT 2 LASER UNIT 2 MODEL HL 1030 1240 1250 1270 1270N 84U Z04 Z01 Z02 Z05 Z03 020 2 2 2 1 3 17 4 1 14 6 9 11 5 11 11 11 12 13 2 10 7 16 8 15 10 2 PR2001023 T I NO PR99165 PR2000014 PR2000073 PR2000152 PR2001023 18 19 ...

Page 224: ...30 CAUTION 1 The new version of the TR electrode helical spring TR ELECTRODE HELICAL SPRING B LJ4499001 should be used for ALL HL 1030 1270N printers and the HL 1240 1250 printers whose serial No is the following number or later HL 1240 J9J211817 EXCEPT J9J212235 J9J217459 J9J219423 J9J219997 HL 1250 J9J221758 2 The old version of the TR electrode helical spring TR ELECTRODE HELICAL SPRING A UL907...

Page 225: ...3 PAPER FEEDER 4 MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 045 047 PR2000130 T I NO PR2000051 PR2000108 PR2000130 2 3 1 4 5 6 8 7 ...

Page 226: ...L8929001 8 EJECT PINCH ROLLER 1 7 LJ4431001 8 PINCH SPRING 1 8 LJ4407001 2 CLEANER ROLLER ASSY 1 9 LJ4409001 2 CLEANER SPRING 1 10 087312015 2 TAPTITE CUP B M3X20 1 11 Z07200001 1 TAPTITE PAN B M3X10 1 12 LJ4845001 4 PICK OFF FINGER SP 1 13 LJ4853001 1 PRESSURE ROLLER 20 SP 1 13 LJ4852001 1 PRESSURE ROLLER 20 LE SP 1 14 UL8920001 1 PAPER EJECT ACTUATOR 1 15 UL8921001 1 EJECT ACTUATOR SPRING 1 16 U...

Page 227: ...EL HL 1030 1240 1250 1270 1270N 84U Z04 Z01 Z02 Z05 Z03 045 047 T I NO PR2000029 PR2000057 1 10 1 11 1 6 1 7 1 7 2 1 6 1 6 1 7 1 7 1 6 3 1 10 1 1 1 1 9 1 8 1 2 1 9 1 8 1 12 1 12 1 12 1 12 3 1 13 1 4 1 3 1 4 1 14 1 15 1 5 ...

Page 228: ...3 LJ4865001 1 MYLAR LABEL 1240 TRAY MODEL HL 1030 1240 1250 1270 1270N 84U Z04 Z01 Z02 Z05 Z03 045 T I NO PR2000066 PR2000127 5 2 PAPER CASSETTE A4 REF NO CODE Q TY DESCRIPTION REMARK 1 LJ4181001 1 PAPER TRAY ASSY A4 SP 1 1 UL9074001 1 PRESSURE PLATE ASSY A4 1 2 UL9077001 2 PRESSURE PLATE SPRING 1 3 UL9078001 1 SIDE GUIDE L 1 4 UL9079001 1 SIDE GUIDE R 1 5 U73515001 2 TAPTITE CUP B M2 6X5 1 6 UL90...

Page 229: ...1 22 LJ4200001 2 SCRATCH SPONGE SPRING MODEL HL 1240 84U Z01 049 T I NO PR99179 PR2000127 5 4 PAPER CASSETTE LEG REF NO CODE Q TY DESCRIPTION REMARK 1 LJ4684001 1 PAPER TRAY ASSY LEG SP 1 1 UL9074001 1 PRESSURE PLATE ASSY A4 1 2 UL9077001 2 PRESSURE PLATE SPRING 1 3 UL9078001 1 SIDE GUIDE L 1 4 UL9079001 1 SIDE GUIDE R 1 5 U73515001 2 TAPTITE CUP B M2 6X5 1 6 UL9080001 2 SIDE GUIDE RACK 1 7 UL9081...

Page 230: ... CASSETTE 8 MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 045 047 1 14 1 17 1 2 1 1 10 1 2 1 1 1 18 1 20 1 19 1 8 1 23 1 5 1 7 1 9 1 6 1 13 1 4 1 11 1 16 1 21 1 15 1 22 1 12 1 3 T I NO PR2000066 PR2000127 ...

Page 231: ...496001 1 MODEL PLATE 2412P 13 LJ4724001 1 MODEL PLATE 8212N 13 LJ4772001 1 MODEL PLATE HL 1240 WIP 13 LJ4846001 1 MODEL PLATE HL 1250 WIP 13 LJ4848001 1 MODEL PLATE HL 1270N WIP 14 UL6740001 1 LASER CAUTION LABEL EUR 14 UL7931001 1 LASER LABEL LEGEND 15 LJ8167001 1 MYLAR LABEL 1030 CAN 15 LJ8172001 1 MYLAR LABEL 1030 EUR 15 UL9146001 1 MYLAR LABEL 1240 US 15 UL9249001 1 MYLAR LABEL 1240 CAN 15 UL9...

Page 232: ...6 COVERS MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 060 10 7 17 15 1 12 12 12 16 9 11 11 8 6 2 5 10 13 18 4 3 3 2 12 14 T I NO PR2000066 PR2000075 PR2000108 PR2000129 ...

Page 233: ...12115 1 178A 1 LJ8568001 1 MAIN PCB ASSY HL 1250 2 CA SP B512115 1 179A 1 LJ8326001 1 MAIN PCB ASSY HL 1250 2 LEG SP B512115 1 163A 1 LJ8328001 1 MAIN PCB ASSY HL 1270N 2 SP B512115 1 180B 1 LJ8307001 1 MAIN PCB ASSY HL 1270N 2 EU SP B512115 1 197B 1 LJ8308001 1 MAIN PCB ASSY HL 1270N 2 DEN SP B512115 1 198B 1 LJ8329001 1 MAIN PCB ASSY HL 1270N 2 LEG SP B512115 1 163A 1 1 LJ8295001 1 MASK ROM HL 1...

Page 234: ...7 MAIN PCB MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 101 103 12 HL 1030 1 1 1 HL 1250 1 1 1 1 1 HL 1270 1270N 1 HL 1240 1 1 1 T I NO PR99165 PR2000124 ...

Page 235: ...8 4 087320616 1 TAPTITE CUP S M3X6 5 LJ4756001 1 AC INLET FILM 6 LJ8330001 1 PROTECTION TUBE MODEL HL 1030 1240 1250 1270 1270N 84U Z04 Z01 Z02 Z05 Z03 200 201 T I NO PR99188 PR99189 PR2000113 CAUTION 1 The new versions of the engine PCB ENGINE PCB ASSY B 1240 1030 LJ8157001 ENGINE PCB ASSY B 1250 1270 LJ8158001 should be used for ALL HL 1030 1270N printers and the HL 1240 1250 printers whose seri...

Page 236: ...MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 151 8 ENGINE PCB 9 LOW VOLTAGE POWER SUPPLY PCB 14 MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 200 201 1 T I NO PR99188 PR2000113 1 3 4 6 5 2 ...

Page 237: ...E 1J UK3610001 1 AC CORD ASSY CHN96 1K LJ8288001 1 AC CORD ASSY IND MODEL HL 1030 1240 1250 1270 1270N 84U Z04 Z01 Z02 Z05 Z03 230 T I NO PR99179 PR2000055 CAUTION 1 The new version of the high voltage power supply PCB HIGH VOLTAGE PS ASSY B LJ8156001 should be used for ALL HL 1030 1270N printers and the HL 1240 1250 printers whose serial No is the following number or later HL 1240 J9J211817 EXCEP...

Page 238: ...1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 220 10 HIGH VOLTAGE POWER SUPPLY PCB 11 AC CORD 16 MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 23 0 1A 1B 1C 1D 1E 1F 1G 1H 1I 1J 1K 2 1 2 T I NO PR99179 PR2000055 ...

Page 239: ...UIDE NL 3 LJ4749001 1 SETUP GUIDE NOR 3 LJ4754001 1 SETUP GUIDE SWE 3 LJ4751001 1 SETUP GUIDE DEN 3 LJ4752001 1 SETUP GUIDE SPA 3 LJ4753001 1 SETUP GUIDE ITA 3 LJ4650001 1 SETUP GUIDE PB 4 LJ4585001 1 NETWORK SETUP GUIDE US HL 1270N 4 LJ4586001 1 NETWORK SETUP GUIDE FRA HL 1270N 4 LJ4587001 1 NETWORK SETUP GUIDE GER HL 1270N 4 LJ4588001 1 NETWORK SETUP GUIDE NL HL 1270N 4 LJ4590001 1 NETWORK SETUP...

Page 240: ...12 ACCESSORIES MODEL HL 1030 1240 1250 1270 1270N 84U Z04 Z01 Z02 Z05 Z03 920 18 T I NO PR99165 PR2000022 PR2000024 PR2000055 7 8 3 4 5 1 6 2 ...

Page 241: ...ARTON HL 1270N CAN 1 LJ4188001 1 CARTON HL 1270N EU 1 LL0046001 1 CARTON OEM 1 LL0045001 1 CARTON LEG 2312P 1 LL0047001 1 CARTON LEG 2412P 1 LL0151001 1 CARTON LEG 8212N 2 UE2280001 1 STYROFORM PAD ASSY LGL 2 LJ4038001 1 STYROFORM PAD ASSY A4 3 UE2283001 1 ACCESSORY CARTON 4 UE2126001 1 BAG 700X800H MODEL HL 1030 1240 1250 1270 1270N 84U Z04 Z01 Z02 Z05 Z03 930 T I NO PR99165 PR99179 PR99206 PR992...

Page 242: ...MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 930 13 PACKING MATERIALS 14 NETWORK BOARD 20 MODEL HL 1270N 84U Z03 150 1 2 2 3 4 1 1 1 1 1 T I NO PR99165 ...

Page 243: ... 21 15 ADJUSTING TOOL PRT 402 TOOL NO TOOL NAME REMARK PRT 402 TORX SCREW DRIVER MODEL HL 1030 1240 1250 1270N 84U Z04 Z01 Z02 Z03 PRT 001f PRT 001f MOLYKOTE PG 662 ADD T I NO PR99165 ...

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