TSC TTP-268M Service Manual
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TSC TTP-268M Service Manual

Thermal transfer / direct thermal bar code printer
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See also: Programming Manual , User Manual
TTP-268M/ TTP-366M
THERMAL TRANSFER / DIRECT THERMAL
BAR CODE PRINTER
SERVICE
MANUAL

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Summary of Contents for TSC TTP-268M

  • Page 1 TTP-268M/ TTP-366M THERMAL TRANSFER / DIRECT THERMAL BAR CODE PRINTER SERVICE MANUAL...

  • Page 2: Table Of Contents

    TTP-268M/ TTP-366M Bar Code Printer Service Manua TABLE OF CONTENT 1. FUNDAMENTAL OF THE SYSTEM ................1 1.1. Overview ......................... 1 2. ELECTRONICS ......................5 2.1 Summary of Board Connectors ................5 2.2 Pin Configuration ....................10 3. MECHANISM ......................12 3.1 Remove Covers .....................

  • Page 3: Fundamental Of The System

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 1. FUNDAMENTAL OF THE SYSTEM 1.1. Overview Front View 1. LED indicators 2. LCD display 3. Front panel buttons 4. Paper exit chute 5. Lower front cover 6. Media view window 7. Printer right side cover opener...

  • Page 4: Interior View

    TTP-268M/ TTP-366M Bar Code Printer Service Manua Interior View 1. Ribbon rewind spindle 2. Ribbon supply spindle 3. Print head pressure adjustment knob 4. Ribbon guide bar 5. Z axis mechanism adjustment knob 6. Print head release lever 7. Media guide bar 8.

  • Page 5: Rear View

    TTP-268M/ TTP-366M Bar Code Printer Service Manua Rear View 1. Fan-fold paper entrance chute 2. Centronics interface (SPP mode) 3. USB interface (USB 2.0/ Full speed mode) 4. RS-232C interface (Max. 115,200 bps) 5. Power jack socket 6. GPIO interface (Factory option) *7.
  • Page 6 TTP-268M/ TTP-366M Bar Code Printer Service Manua V1.0, V1.1 1 GB SanDisk, Transcend, Panasonic V2.0 SDHC CLASS 4 4 GB V2.0 SDHC CLASS 6 4 GB SanDisk, Transcend, Panasonic V1.0, V1.1 microSD 128 MB Transcend, Panasonic V1.0, V1.1 microSD 256 MB Transcend, Panasonic V1.0, V1.1...

  • Page 7: Electronics

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 2. ELECTRONICS 2.1 Summary of Board Connectors Main board Connector Description Centronics port connector USB connector RS-232C connector LCD panel connector Multi-interface board connector/ GPIO interface board Micro processor RFID module connector...
  • Page 8 TTP-268M/ TTP-366M Bar Code Printer Service Manua Head open sensor connector Description Voltage Head open sensor emitter 1.2~1.4V power pin Head open sensor 0V: Head close receiver 3.3V: Head open Gap sensor connector Description Voltage Power 4.0~4.1V: Emitter on Gap sensor emitter 4.3~4.4V: Emitter off...
  • Page 9 TTP-268M/ TTP-366M Bar Code Printer Service Manua Cutter/peel-off sensor connector Description Voltage 0V: Cutter work Cutter enable 5V: Cutter stop 0V: Cutter positive cut Cutter direction 5V: Cutter negative cut Cutter position sensor 0V: Cutter stop switch 3.3V: Cutter work Peel sensor receiver A/D: 0~3.3V...
  • Page 10 TTP-268M/ TTP-366M Bar Code Printer Service Manua Description Voltage Logic power DC motor sensor A/D: 0~3.3V receiver Motor signal A Motor power Motor signal B Motor power Power supply output (24V DC) connector GPIO interface power (24V DC) connector Print head signal connector...
  • Page 11 TTP-268M/ TTP-366M Bar Code Printer Service Manua GPIO with multi-interface board Connector Description Remark GPIO connector Main board connector SD card slot Ethernet RJ-45 connector PS/2 connector GPIO power connector...

  • Page 12: Pin Configuration

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 2.2 Pin Configuration RS-232C CONFIGURATION +5 V CONFIGURATION Centronics SPP Mode Nibble In/Out Strobe Data 0-7 Busy Paper Out / End Select Ground No Defined 16-17 Ground No Defined 19-30 Ground No Defined...
  • Page 13 TTP-268M/ TTP-366M Bar Code Printer Service Manua Ethernet CONFIGURATION PS/2 CONFIGURATION KBD Clock KBD Data +5V(VCC) GPIO...

  • Page 14: Mechanism

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3. MECHANISM 3.1 Remove Covers 1. Remove 4 screws from printer. Screws 2. Open printer right side cover and remove 2 screws then close the cover. Screws 3. Remove the electronics cover. Electronics...
  • Page 15 TTP-268M/ TTP-366M Bar Code Printer Service Manua 4. Remove 3 screws from each hinge. Be careful the right side cover may fall out from the printer. Take out the right side cover from the printer. Right side cover Screws 5. Reassemble the parts in the reverse procedures.

  • Page 16: Replacing The Lcd Panel Module

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.2 Replacing the LCD Panel Module 1. Refer to section 3.1 to remove the electronics cover. 2. Disconnect harness from the LCD panel module. 3. Push two tabs to remove/replace the LCD panel module.

  • Page 17: Replacing The Power Supply Unit

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.3 Replacing the Power Supply Unit 1. Refer to section 3.1 to remove the electronics cover. 2. Disconnect 2 connectors and remove 2 screws on the power supply unit. Screws Note: For new power supply unit (as shown below), it need to change new DC cable.(10PIN on PSU，8PIN on PCB)

  • Page 18: Replacing Multi-Interface Board

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.4 Replacing Multi-interface Board 1. Refer to section 3.1 to remove the electronics cover. 2. Remove 4 screws then take off the interface plate. Interface plate Screws 3. Remove 2 screws from multi-interface board.

  • Page 19: Replacing The Main Board

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.5 Replacing the Main Board 1. Refer to section 3.1 and 3.4 to remove electronics cover and multi-interface board. 2. Disconnect all connectors from the main board. 3. Remove 2 copper pillars and 2 screws.

  • Page 20: Replacing The Platen Roller Assembly

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.6 Replacing the Platen Roller Assembly 1. Open printer right side cover. 2. Disengage print head lift lever. 3. Remove the 1 screw to remove gear cover. Screws Gear cover 4. Remove 4 screws from the platen holder.

  • Page 21: Replacing The Stepping Motor

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.7 Replacing the Stepping Motor 1. Refer to section 3.1 to remove the electronics cover. 2. Disconnect the stepping motor connector from the main board. Stepping motor connector 3. Remove 3 screws and 1 fixed tie on the stepping motor.

  • Page 22: Replacing The Print Head Ass'y

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.8 Replacing the Print head ASS'Y 1. Open the printer right side cover. 2. Remove 2 screws from the mechanism. Screws 3. Disengage print head release lever. 4. Carefully disconnect 2 connectors from the print head ASS'Y.
  • Page 23 TTP-268M/ TTP-366M Bar Code Printer Service Manua 6. Connect the print head cable and carefully slide assembly into the print mechanism. The holes of print head assembly must align and then insert the tenons of print mechanism. Tenons Print head ASS'Y 7.

  • Page 24: Replacing The Gap And Black-Mark Sensor Module

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.9 Replacing the Gap and Black-mark Sensor Module 1. Open the printer right side cover. 2. Disengage print head release lever. 3. Refer to section 3.1 and 3.4 to remove electronics cover and multi-interface board.

  • Page 25: Replacing The Dc Motor Module

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.10 Replacing the DC Motor Module 1. Refer to section 3.1 to remove the electronics cover. 2. Disconnect the DC motor module connector from the main board. DC motor module connector 3. Remove 4 screws from DC motor fixed plate.

  • Page 26: Peel-Off Kit Installation (Option)

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.11 Peel-off Kit Installation (Option) Peel-off kit parts list: 1. Internal rewinder spindle 2. Harness for DC motor control board 3. Peel-off cover (Including peel-off sensor assembly) 4. Screw # 1 5. Gear 6.
  • Page 27 TTP-268M/ TTP-366M Bar Code Printer Service Manua 1. Refer to section 3.1 to remove the electronics cover. 2. Remove 3 screws and 1 connector to remove the DC motor assembly. (DC motor fixing plate) Connector Screws (Blue) 3. Open the right side printer cover. Remove the dustproof cover from internal rewinder spindle reserve hole.
  • Page 28 TTP-268M/ TTP-366M Bar Code Printer Service Manua 5. Remove 2 screws from the internal rewinder spindle. 6. Separate the internal rewinder spindle and shaft as above picture. 7. Put the bearing into the internal rewinder shaft hole. (Left side) 8. Insert the gear shaft into the internal rewinder shaft hole.
  • Page 29 TTP-268M/ TTP-366M Bar Code Printer Service Manua 9. Put the bearing (right side), felt fabric and gasket onto the shaft. 10. Insert the internal rewinder spindle to the shaft and fasten the screw. Note: The spindle screw hole must be in alignment with the screw hole on rewinder shaft.
  • Page 30 TTP-268M/ TTP-366M Bar Code Printer Service Manua 13. Install 2 copper pillars to the DC motor fixing plate. 14. Place the two locating protrusions on the motor into the locating holes on the fixing plate. Make sure the protrusions at lower position of locating holes.
  • Page 31 TTP-268M/ TTP-366M Bar Code Printer Service Manua 16. Use 3 screws to fasten the DC motor plate to the printer mechanism. Plug the DC motor control board harness into the DC motor control board. (White connector) 17. Remove 4 screws to take off the printer interface plate.
  • Page 32 TTP-268M/ TTP-366M Bar Code Printer Service Manua 19. Connect the DC motor harness and the DC motor control board harness to main board. Then, reassemble the parts in the reverse procedures. 20. Remove 2 screws to take off the lower front panel.

  • Page 33: Cutter Module Installation (Option)

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 3.12 Cutter Module Installation (Option) 1. Open the printer right side cover. 2. Remove 2 screws to remove the lower front panel. 3. Plug the cutter mini DIN cable connector into the cutter/peel-off connector. The triangle mark on the connector must be at the upper side.
  • Page 34 TTP-268M/ TTP-366M Bar Code Printer Service Manua 5. Place the cutter module into the cutter fixing plate. Please refer to the following fig. 6. Fasten the 1 screw at the cutter bracket to fix the cutter module to the printer...

  • Page 35: Troubleshooting

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 4. TROUBLESHOOTING 4.1 Common Problems The following guide lists the most common problems that might be encountered when operating this bar code printer. If the printer still does not function after all suggested solutions have been invoked, please contact the Customer Service Department of your purchased reseller or distributor for assistance.
  • Page 36 TTP-268M/ TTP-366M Bar Code Printer Service Manua * Re-connect cable to interface. * If using serial cable, - Please replace the cable with pin to pin connected. - Check the baud rate setting. The default baud rate setting of printer is 9600,n,8,1.
  • Page 37 TTP-268M/ TTP-366M Bar Code Printer Service Manua * Reload the supply. * Clean the printhead. * Clean the platen roller. * Adjust the print density and print speed. * Run printer self-test and check the printhead test pattern if there is dot missing in the pattern.
  • Page 38 TTP-268M/ TTP-366M Bar Code Printer Service Manua * Set the correct label size. * Wrong label size setup. The left side printout * Press [MENU]  [SELECT] x 3  [DOWN] x 5 * The parameter Shift X in LCD menu is ...

  • Page 39: Print Head Pressure Adjustment Knob

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 4.2 Print Head Pressure Adjustment Knob There are two conditions that will need to adjust the print head pressure. 1. Print with thick media If media thickness is larger than 0.19 mm, the larger pressure is required to get good quality printout.

  • Page 40: Mechanism Fine Adjustment To Avoid Ribbon Wrinkles

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 4.3 Mechanism Fine Adjustment to Avoid Ribbon Wrinkles This printer has been fully tested before delivery. There should be no ribbon wrinkle presented on the media for general-purpose printing application. Ribbon wrinkle is related to the media thickness, print head pressure balance, ribbon film characteristics, print darkness setting…etc.
  • Page 41 TTP-268M/ TTP-366M Bar Code Printer Service Manua Adjust the print head pressure adjustment knob Adjust the print head pressure adjustment knob Left knob Middle knob Middle knob Right knob The print head pressure adjustment knob has 5 The print head pressure adjustment knob has 5 levels of settings.

  • Page 42: Z-Axis Mechanism Adjustment Knob

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 4.4 Z-axis Mechanism Adjustment Knob Z-axis mechanism adjustment knob Fixing nut Indicator (The default position is set at the lowest line.) Fixing screw For narrow media, If change the print head pressure adjustment knob setting can’t get the printout without ribbon wrinkle, the Z-axis mechanism adjustment knob should be adjusted to get the satisfied printout.
  • Page 43 TTP-268M/ TTP-366M Bar Code Printer Service Manua 2. Loosen the fixing screw. 3. Please be noted that print head right pressure find turn should be done by try-and-error. Rotate the Z-axis mechanism adjustment knob clockwise for a few degrees by screwdriver and print again to check if the ribbon wrinkle remains.
  • Page 44 TTP-268M/ TTP-366M Bar Code Printer Service Manua 4. Screw the fixing nut and fixing screw for fixed this print head pressure. Fixing nut Fixing screw...

  • Page 45: Maintenance

    TTP-268M/ TTP-366M Bar Code Printer Service Manua 5. MAINTENANCE This session presents the clean tools and methods to maintain your printer. 1. Please use one of following material to clean the printer.  Cotton swab (Head cleaner pen)  Lint-free cloth ...
  • Page 46 TTP-268M/ TTP-366M Bar Code Printer Service Manua Wipe it with water-dampened As needed Exterior cloth Interior Brush or vacuum As needed Note:  Do not touch printer head by hand. If you touch it careless, please use ethanol to clean ...

  • Page 47: Update History

    TTP-268M/ TTP-366M Bar Code Printer Service Manua UPDATE HISTORY Date Content Editor 2015/4/7 Modify section 3.3(Replacing the power supply unit) Camille...
  • Page 49 9F., No.95, Minquan Rd., Xindian Dist., No.35, Sec. 2, Ligong 1st Rd., Wujie Township, New Taipei City 23141, Taiwan (R.O.C.) Yilan County 26841, Taiwan (R.O.C.) TEL: +886-2-2218-6789 TEL: +886-3-990-6677 FAX: +886-2-2218-5678 FAX: +886-3-990-5577 Web site: www.tscprinters.com E-mail: printer_sales@tscprinters.com TSC Auto ID Technology Co., Ltd. tech_support@tscprinters.com...

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Ttp-366m

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