Epson TM200, Service Manual

Page 1: ...TM200 Service Manual Service manual TM200 Rev No V 1 10 ...

Page 2: ...cuit Board Assembly 24 2 5 Switch Circuit Board Assembly 24 3 Handling Maintenance and Repairs 25 3 1 Handling 25 3 2 Problem Solving 28 3 3 Clearing Paper Jams 29 3 4 Inspection and Maintenance 30 4 Troubleshooting 32 4 1 Symptoms and Solutions 31 4 2 Error Types and Processing 33 5 Disassembly Assembly and Adjustment 35 5 1 Before Starting disassembly assembly and adjustment 35 5 2 Using this Ma...

Page 3: ...TM200 Service Manual 1 1 Features and General Description 1 1 Printer Parts Printer cover Control Panel Cutter cover Cover open button Figure 1 1 TM200 appearance ...

Page 4: ...4 including 2 dot spacing horizontally Font B 9 x 17 including 2 dot spacing horizontally Kanji 24 x 24 Default font Font A Notes Printing speed may be slower depending on the data transmission speed and the combination of control commands There may be variations in printing speed To prevent this for logo printing using a downloaded bit image is recommended Low transmission speed may cause intermi...

Page 5: ...roll width 80 0 5 1 0 mm Paper roll diameter Inside 12 mm 0 47 Outside 18 mm 0 71 CAUTION Paper must not be pasted to the paper roll Printable Area Paper roll The printable area of a paper with width of 79 5 0 5 mm 3 13 0 02 is 72 2 0 2 mm 2 84 0 008 576 dots Internal Buffer Receive buffer selectable as 2KB or 96KB using the DIP switch Non volatile bit image buffer 128KB Electrical Specifications ...

Page 6: ...t UL 1950 and CSA22 2 No 950 sub clause 2 9 which would cover the component itself if submitted for Listing 2 The terminals and connectors have not been evaluated for field wiring Reliability Life Mechanism 15 000 000 lines Thermal head 100 million pulses 50 Km Autocutter 1 200 000 cuts End of life is defined to have been reached when it reaches the beginning of the wear out period MTBF 360 000 ho...

Page 7: ...TM200 Service Manual 5 Environmental Conditions Temperature Operating 5 to 45 41 to 113 Storage 10 to 50 14 to 122 except for paper Humidity Operating 10 to 90 RH Storage 10 to 90 RH except for paper ...

Page 8: ...600 4 6 Paper end Sensor Reflection type photo sensor Paper Roll Near end Sensor Reflection type photo sensor Autocutter Unit Type DC brush motor Cutter motor voltage 24 VDC 7 Current consumption 800 mA peak at starting low temperature 70 mA average room temperature 1 3 Connectors Interface Drawer kick out Power supply Power Supply Connector This connector is used to connect the printer to an exte...

Page 9: ...al GND 24 V is always output through pin 4 during power on CAUTION Pin 4 must be used only for the drawer Figure 1 3 Drawer kick out connector Drawer kick out drive signal Output signal Output voltage Approximately 24 V Output current 1A or less CAUTION To avoid an over current the resistance of the drawer kick out solenoid must be 24 or more 1 4 Interfaces RS 232 serial interface Specifications D...

Page 10: ... using ESC c 4 Interface connector terminal assignments and signal functions are described in the table below TM200 serial printer status and signals Pin number Signal name Signal direction Function 1 FG Frame ground 2 TXD Output Transmit data 3 RXD Input Receive data 4 RTS Output Same as DTR signal Pin 20 This signal indicates whether the host computer can receive data SPACE indicates that the ho...

Page 11: ...er switch Function The power switch turns the power on or off Note Turn on the power only after connecting the power supply Panel Button FEED button If you push this button once and release it the printer feeds paper for one line based on the line spacing set by ESC 2 and ESC 3 If you hold on the button the printer will feed paper continuously Paper feeding using the FEED button cannot be performe...

Page 12: ...APER Red On The paper roll near end is detected Off Paper is loaded normal condition Blinking Self test standby state Figure 1 4 Panel button and indicators Note The panel lights can tell you a lot of information about the situation of the printer please refer to Appendix C for details DIP Switches Serial interface model The DIP switches are located at the bottom of the case Figure 1 5 DIP switche...

Page 13: ...r to the table as below 1 5 Cutter setting Disable Enable default 1 6 Stop bit Fixed to OFF 1 bit 1 7 Cutter mode Full Partial default 1 8 Reserved do not change settings Fixed to OFF Print Density SW 1 3 SW 1 4 1 Low power consumption mode ON ON 2 Normal OFF default OFF default 3 ON OFF 4 Dark OFF ON DIP switch Function ON OFF 2 1 Reserved Reserved 2 2 Receive buffer capacity 2K bytes 96K bytes d...

Page 14: ...ts 8 bits Parity check None Stop bits 1 bit Flow control suggest to set for None None Transmission Speed BPS bits per second SW 2 7 SW 2 8 4800 OFF ON 9600 ON OFF 19200 OFF default OFF default 38400 ON ON DIP switch Function ON OFF 3 1 Buzzer1 setting Disable Enable default 3 2 Buzzer 2 setting Disable Enable default 3 3 3 8 Undefined ...

Page 15: ...int density Refer to page as below 1 5 Cutter setting Disable Enable default 1 6 Parallel port supports EPP SPP EPP default 1 7 Cutter mode Full Partial default 1 8 Reserved do not change settings Fixed to OFF Print Density SW 1 3 SW 1 4 1 Low power consumption mode ON ON 2 Normal OFF default OFF default 3 ON OFF 4 Dark OFF ON DIP switch Function ON OFF 2 1 Auto line feed Always enabled Always dis...

Page 16: ...2 Make sure a paper roll has been installed properly 3 While holding down the FEED button turn on the printer using the switch on the front of the printer to begin the self test The self test prints the printer settings and then prints the following cuts the paper and pauses If you want to continue SELF TEST Please press the FEED button 4 Press the FEED button to continue printing The printer prin...

Page 17: ... the codes it receives in a two column format The first column contains the hexadecimal codes and the second column gives the ASCII characters that correspond to the codes Hexadecimal Dump 1B 21 00 1B 26 02 40 40 1B 25 01 1B 63 34 00 1B c 4 41 42 43 44 45 43 47 48 ABCDEFGH 5 Close the cover and turn off the printer or reset it to turn off the hex dump mode or to terminate hex dump press FEED butto...

Page 18: ...osed the cover open button is latched Note Be sure to use the cover open button to open the printer cover Do not open the cover during printing Do not open the cover during the autocutter is operating otherwise the mechanism may be damaged Cover Open Sensor The cover open sensor monitors the printer cover When the sensor detects a cover open during printing the ERROR light blinks and the printer s...

Page 19: ...fg Europe GmbH In Southeast Asia N A K Mfg Malaysia SDN BHD Note The following paper can be used instead of the specified paper above Original paper AF50KS E Jujo Thermal Oy Finland P350 F380 P310 Kanzaki Specialty Papers Inc U S A PD190R Oji Paper Mfg Co Ltd Note Do not use any paper other than these specified above Otherwise print head reliability and print quality are affected adversely 1 12 Ex...

Page 20: ...TM200 Service Manual 18 Output specifications Output voltage 24 VDC 5 Rated output current 2 5 A Rated output power Approximately 60 W Output peak current 4 5 A within 300 ms duty 1 6 ...

Page 21: ...ents TM200 printer mechanism switch circuit board assembly I F circuit board assembly Main circuit board unit 2 2 TM200 Printer Mechanism This printer consists of three mechanisms a printer mechanism and a cutter module The following illustration shows the external configuration of the TM200 Figure 2 1 TM200 external configuration ...

Page 22: ... printed 2 Resistors at each electrode generate heat 3 The heat energy generated by the resistors is transmitted to the roll paper surface through the protective layer to the paper s heat sensitive layer causing coloration of the paper Figure 2 2 Frame cover open The paper outlet of the printer is covered and even if paper output becomes blocked for some reason there is enough room in the space be...

Page 23: ... the frame cover causes the stationary blade to come into partial contact with the paper cutter frame and the stationary blade and movable blade are brought into relative position Cutter blade knob The movable blade is in the home position whenever cutter operation is not being performed In addition to safety considerations this enables a mechanism in which the frame cover cannot be opened or clos...

Page 24: ...t into the print head and sending of print signal DATA IN which is synchronized with the CLOCK signal to the driver sets the print non print status of each dot Data is confirmed by latch signal LATCH Print time control is performed by STROBE1 and STROBE2 while energizing time is controlled by the gate array Changes in head temperature causes fluctuation of the resistance value of the thermistor bu...

Page 25: ...tatus can be obtained from the host interface Power Supply Circuit The table as below shows supply voltage values and their applications Power supply voltage values and applications Voltage Value Main Applications 1 8V Power supply for the CPU core 3 3V Power supply for the CPU I O pins Logic circuit power supply Interface board power supply Detector power supply 5V VCC Thermal head logic circuit ...

Page 26: ...allows support of a variety of different interfaces by changing the interface board RS 232 Interface IEEE 1284 Interface USB Interface Multi interface Parallel and Serial 2 5 Switch Circuit Board Switch circuit board has the following built in electrical circuits Paper FEED button LED POWER ERROR PAPER ...

Page 27: ...not turn unit power off during normal operation Be especially careful to avoid turning power off while a paper cut operation is being performed Doing so can result in the cutter blade being exposed which will make it impossible to open the paper roll cover Never pull out paper while the paper roll cover is open During normal operation never open the cutter cover and rotate the cutter manual knob b...

Page 28: ...e the paper to color and characters on the paper to fade Take the paper roll out of the printer when you will not use the printer for a long time in a high temperature and humidity environment Do not use this unit to print on label paper Loading paper roll Note Be sure to use paper rolls that meet the specifications Do not use paper rolls that have the paper glued to the core because the printer c...

Page 29: ...TM200 Service Manual 27 4 Insert the paper roll as shown 5 Be sure to note the correct direction that the paper comes off the roll 6 Pull out a small amount of paper as shown Then close the cover ...

Page 30: ... the knob until you see cutter blade back to the lowest position as shown in the illustration below This returns the cutter blade to the normal position Also notice that there is a label near the cutter to assist you 5 Close the cutter cover 6 Open the printer cover 7 Remove the jammed paper Note Other than a paper jam the autocutter locking up could have been caused by a foreign object such as a ...

Page 31: ...oll cover Note See the previous section for steps to take if the paper roll cover does not open 2 Next turn power off 3 Grasp the leading end of the receipt paper and pull the jammed paper Note Be sure to remove all of the paper Leaving part of the paper in the unit can cause the sensor to malfunction 4 Correct the problem that caused the paper jam and reload the paper roll into the unit Note See ...

Page 32: ... or other foreign matter present Clean out any paper or foreign matter Dirt lint and dust inside components Check for dirt lint and dust in the paper path Check for any foreign matter on the surface of or in the paper end sensor Check if the platen roller has become white with paper particles Use a vacuum cleaner to completely remove all dirt lint and dust Wipe away foreign matter with paper or so...

Page 33: ... surface with a cotton swab moistened with a little water while rotating the platen roller gear Paper roll end sensor on receipt side Clean the paper roll end sensor with a cotton swab moistened with a little water Exterior dirt Use a clean dry cloth to wipe off dirt from the exterior of the unit If this does not get the unit clean wipe with a cloth moistened with a small amount of water or a solu...

Page 34: ...he print Receipt printing 1 Clean the thermal print head See page 30 2 Replace the thermal print head module See page 44 3 Replace the main circuit board unit See page 47 The print is thin Receipt printing 1 Clean the thermal print head See page 30 2 Adjust DIP switches DSW 1 3 and 1 4 print density selection switches See page 12 3 Replace the thermal print head module See page 44 4 Replace the ma...

Page 35: ...ecutes the following operations upon detecting an error Stops all printer operations Flashes the ERROR LED Data Receive Error only with the serial interface model If one of the following errors occurs during serial interface communications the printer ignores the data Parity error Framing error Overrun error ...

Page 36: ...lements on the Main Circuit Board Unit The following shows the locations of the main elements on the main circuit board unit CPU U1 ROM U10 Low byte ROM U12 High byte Autocutter drive J5 J8 Paper feed motor driver U31 Thermal Head power MOS Q14 Q15 ...

Page 37: ...al Incorrect disassembly can cause serious damage to the printer Never touch an FPC or its connectors with your fingers Getting dirt on the FPC or its connectors can result in improper connection 5 2 Using this Manual This section explains a number of general conventions used in this manual Titles The titles that appear inside the sections of this manual describe the assembly and disassembly of ma...

Page 38: ...embly Assembly and Adjustment There are 5 block of TM200 showing as following Door sensor block Paper out sensor block and paper sensor block Autocutter module Thermal head module Main circuit board Please following the steps for disassembly ...

Page 39: ... thermal cover and move them 2 Screwing 4 screws the place indicated by the red circle on the photo on the bottom of the unit 3 Reverse the printer move the body cover apart Note You may use your thumb push down the lever while the other fingers forcing up the body cover ...

Page 40: ...TM200 Service Manual 38 4 Open the up cover 5 Move the 2 screws are circled indicated on the photo To install reverse the removal procedures ...

Page 41: ...ews beside the thermal cover and move them 2 Screwing 4 screws the place indicated by the red circle on the photo on the bottom of the unit 3 Reverse the printer take the body cover apart Note You may use your thumb push down the lever while the other fingers forcing up the body cover ...

Page 42: ... Remove the screws on the bottom of the printer mechanism 5 Remove 2 screws circled on the photo and all the connections between printer mechanism and main circuit board Then you can depart printer mechanism from its main board ...

Page 43: ...6 Paper sensor connecter beside the printer mechanism as the photo 7 Remove the screw on the bottom of the printer mechanism as circled on photo the paper out sensor could be moved then To install reverse the removal procedure ...

Page 44: ... thermal cover and move them 2 Screwing 4 screws the place indicated by the red circle on the photo on the bottom of the unit 3 Reverse the printer take the body cover apart Note You may use your thumb push down the lever while the other fingers forcing up the body cover ...

Page 45: ...nections from circuit board To install reverse the removal procedure CAUTION When you installed the autocutter module you must follow the steps below If you do not follow them it could cause an autocutter operation failure 1 Secure the right side screw 2 Secure the left side screw ...

Page 46: ...e thermal cover and move them 2 Screwing 4 screws the place indicated by the red circle on the photo on the bottom of the unit 3 Reverse the printer take the body cover apart Note You may use your thumb push down the lever while the other fingers forcing up the body cover ...

Page 47: ...e autocutter and the connections from circuit board 5 Stretch your forefinger to the bottom of the thermal head module and force up to depart it from the printer mechanism 6 Remove the connections from circuit board To install reverse the removal procedure ...

Page 48: ...rge Failure to do so can result in damage to the thermal head Never touch the thermal element the area that looks like it is marked with a thin black line of the thermal head with your hand Doing so can damage the heating element Whenever there is dirt or any other foreign matter on the thermal head clean it off with a cotton swab moistened with alcohol When you installed the autocutter module you...

Page 49: ... thermal cover and move them 2 Screwing 4 screws the place indicated by the red circle on the photo on the bottom of the unit 3 Reverse the printer take the body cover apart Note You may use your thumb push down the lever while the other fingers forcing up the body cover ...

Page 50: ... Remove the screws on the bottom of the printer mechanism 5 Remove 2 screws circled on the photo and all the connections between printer mechanism and main circuit board Then you can depart printer mechanism from its main board ...

Page 51: ...e other measures to protect against electrostatic charge Internal circuit board components become hot during normal use Make sure they have cooled sufficiently before performing this procedure There are 2 ROMs on the board the one is LOW bye U10 the other one is HIGH byte U12 please make sure the ROM be placed to the correct place After removing these circuit boards be sure to protect them against...

Page 52: ...s in either of the followings 1 When the power is turned on or until the printer becomes ready for data transmission after it is initialized by the reset signal from the interface 2 During the self test 3 When the cover is open 4 During paper feeding using the paper feed button 5 When the printer stops printing due to a paper end in cases when empty paper supply is detected by either the paper rol...

Page 53: ...Data Bit 5 8 PRINTER_D6 Data Bit 6 9 PRINTER_D7 Data Bit 7 10 P ACK Acknowledge receipt of Data 11 P BUSY Strobe received Waiting on Acknowledge 12 P PE Paper Out Paper Error 13 P SELECT Daisy Chain Device Select Signal 14 P AF Auto Feed paper 15 NC 16 GND GND 17 GND GND 18 NC 19 30 GND GND 31 P INIT Cancel Current Job May be called PRIME 32 P ERROR 33 GND 36 P SEL IN Select In Taking low or high ...

Page 54: ...TM200 Service Manual 52 Appendix B Exploded diagram ...

Page 55: ...ng z Paper Green Paper end or sensor can t detect paper roll z Power Green z Error OFF z Paper Red and Green light blinking Paper near end z Power Green z Error OFF z Paper Red Upper cover is open or sensor cannot detect paper roll z Power Green z Error Red blinking z Paper Red and Green blinking Autocutter doesn t work z Power Green z Error Red z Paper Green Paper jam z Power Green z Error Red bl...

Page 56: ...r Green z Error OFF z Paper OFF The printer was ready for receiving data from the host after press FEED button z Power Green z Error Red z Paper OFF Ready for ISP z Power Green z Error Red z Paper Red ISP is finished z Power Green light blinking z Error Red light blinking z Paper Red light blinking ...

Page 57: ...able white color 10 CB04011B USB printer cable black color 11 BK04010B3 Multi port Parallel RS232 interface board 12 CB04012A Parallel printer cable white color 25 pin 13 CB04012B Parallel printer cable black color 25 pin 14 CB04013A Serial printer cable white color 25 to 25 pin 15 CB04013B Serial printer cable black color 25 to 25 pin 16 BK04201A Thermal head module 17 BK04208A Autocutter module ...