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TSC TH220 Series Service Manual

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Desktop Barcode Printer
TH220 Series
Thermal Transfer
Series Models
TH220T / TH320T
TH220THC / TH320THC
Service Manual
www.tscprinters.com

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Summary of Contents for TSC TH220 Series

  • Page 1 Desktop Barcode Printer TH220 Series Thermal Transfer Series Models TH220T / TH320T TH220THC / TH320THC Service Manual www.tscprinters.com...
  • Page 2 All other trademarks are the property of their respective owners. Information in this document is subject to change without notice and does not represent a commitment on the part of TSC Auto ID Technology Co. No part of this manual may be reproduced or transmitted in any form or by any means, for any purpose other than the purchaser’s personal use, without the expressed written...

  • Page 3: Table Of Contents

    Contents Introduction ..............................3 Printer Features ................................4 Electronics ..............................7 Main Board Connectors ..............................7 Interface Pin Configuration ............................. 19 Replacing the Parts............................. 21 Before You Begin ................................21 Replacing the Platen Roller Assembly ..........................22 Replacing the Printhead Assembly ..........................24 Replacing the Top Cover ..............................
  • Page 4 Maintenance ..............................64 Revision History ..............................67...

  • Page 5: Introduction

    100% recyclable packaging and plastic printer casing. Over 90% of printer components are recyclable at the printer’s end-of-life, reducing environmental impact. As with all TSC printers, the TH220 Series features the TSPL-EZD printer-control language, which is fully compatible with other TSC printer languages, while supporting TPLE (Translation Printer Language Eltron®),TPLZ (Translation Printer Language Zebra®) and TPLD (Translation Printer Language Datamax®).

  • Page 6: Printer Features

    1.1 Printer Features Front View Media viewer window Operating buttons Cover lever microSD card slot Power switch...

  • Page 7: Interior View

    Interior View Ribbon access cover Printhead Ribbon supply hub Media holder Media guide Black mark sensor Platen roller Front panel cover Media holder lock Media guide bar...

  • Page 8: Rear View

    Rear View Power jack USB interface USB host RS-232C interface Ethernet LAN port...

  • Page 9: Electronics

    2 Electronics 2.1 Main Board Connectors Power supply output (24V DC) connector System reset switch USB device connector USB host connector RS-232C connector Ethernet connector ESD cable connector Ribbon end sensor connector Panel touch and key connector LCD connector TPH connector Micro SD card connector NFC connector Gap sensor connector (transmitter)
  • Page 10 Function Pin Definition Power supply output (24V DC) connector Definition DCIN 24V System reset switch (for resetting RTC or when printer hangs) Definition Vbattery VDDBU reset signal USB device connector Definition...
  • Page 11 Function Pin Definition USB host connector Definition VBUS 5V RS-232C connector Definition VBUS 5V...
  • Page 12 Function Pin Definition Ethernet connector Definition FGND 3.3V Green LED Control Yellow LED Control 3.3V ESD cable connector Definition Ribbon end sensor connector Definition 3.3V Ribbon sensor receiver...
  • Page 13 Function Pin Definition Panel touch and key connector Definition 3.3V KEY_SDA KEY_SCL KEY_INT TOUCH_INT LCD connector Definition 3.3V 3.3V 3.3V LCD_BL LCD_D/CX LCD_D0 LCD_D1 LCD_D2 LCD_D3 LCD_D4 LCD_D5 LCD_D6 LCD_D7 LCD_NCS LCD_RESET LCD_WE...
  • Page 14 Function Pin Definition TPH connector Definition TPH 24V TPH 24V TPH 24V TPH 24V Strobe2 Data2 TPH ID Temperature sensor Strobe1 Clock Data1 Latch TPH 24V TPH 24V TPH 24V TPH 24V...
  • Page 15 Function Pin Definition Micro SD card connector Definition Micro_SD_DATA1 Micro_SD_DATA0 Micro_SD_CLK 3.3V Micro_SD_CMD Micro_SD_DATA3 Micro_SD_DATA2 Micro_SD_DT...
  • Page 16 Function Pin Definition NFC connector Definition 3.3V NFC_TWD NFC_TWCK NFC_RTS NFC_CTS NFC_UPDATE Gap sensor connector (transmitter) Definition 3.3V Gap Sensor Connector (transmitter) Gap sensor connector (receiver) Definition 3.3V Gap Sensor Connector (receiver)
  • Page 17 Function Pin Definition Buzzer Definition SYS 24V Buzzer control Black mark sensor connector Definition Black Mark Sensor Receiver Black Mark Sensor Emitter 3.3V Coin battery connector Definition Vbattery...
  • Page 18 Function Pin Definition Cutter / Peeler Definition CRFID_RXD CRFID_TXD 5V_RFID Peeler_TWD Peeler sensor receiver 5V_Cutter Peeler_TWCK Cutter rotate direction Cutter enable signal Cutter status...
  • Page 19 Function Pin Definition Wi-Fi & Bluetooth connector Definition 3.3V_WIFI WIFI/BT_Detect WIFI_RX0 WIFI_RX1 WIFI_RXDV WIFI_REFCK WIFI_WAKEUP WIFI_TXEN WIFI_TX0 WIFI_TX1 BT_TXD BT_CTS BT_RXD BT_RTS 3.3V_WIFI WIFI_RESET Stepping motor connector Pin No. Definition BOUT2 BOUT1 AOUT1 AOUT2...
  • Page 20 Function Pin Definition Head open connector Pin No. Definition Head open sensor (receiver) Power switch connector Pin No. Definition EN_24V SW_24V...

  • Page 21: Interface Pin Configuration

    2.2 Interface Pin Configuration Function Pin Configuration USB device Configuration USB host Configuration...
  • Page 22 Function Pin Configuration RS-232C Configuration Ethernet LAN port Definition...

  • Page 23: Replacing The Parts

    3 Replacing the Parts 3.1 Before You Begin WARNING: To avoid the risk of personal injury from electrical shock, before performing any replacement procedures, unplug the power cord from the printer or power outlet to ensure that power is removed. To prepare the printer for the replacement or installation: 1.

  • Page 24: Replacing The Platen Roller Assembly

    3.2 Replacing the Platen Roller Assembly 1. Follow the steps in Before You Begin to prepare the printer. 2. Pull the two release latches on the right and left sides of the printer to release the top cover and then open the top cover. 3.
  • Page 25 5. Lift up to remove the platen roller assembly. 6. Reverse the steps to install the platen roller assembly. Note: The image below indicates the default position for the two tabs of the platen roller.

  • Page 26: Replacing The Printhead Assembly

    3.3 Replacing the Printhead Assembly CAUTION: To prevent electrostatic damage to the electronic components, touch the unpainted part of the frame to ground yourself before the replacement procedures. 1. Follow the steps in Before You Begin to prepare the printer. 2.
  • Page 27 5. Pull the printhead assembly cover in the indicated direction to remove the cover. 6. Disconnect the green ground cable and printhead cable from the printhead assembly. CAUTION: DO NOT touch the printhead throughout the replacement procedures. Oils from your hand may damage the printhead. Ground Cable Connector Printhead Cable Connector 7.
  • Page 28 Note: When installing the printhead assembly, make sure that the stud on the printhead assembly fit into the coil spring.

  • Page 29: Replacing The Top Cover

    3.4 Replacing the Top Cover 1. Follow the steps in Before You Begin to prepare the printer. 2. Open the top cover. For how to open the top cover, refer to Replacing the Platen Roller Assembly. 3. Remove the four screws securing the top cover in place. 4.

  • Page 30: Replacing The Control Panel Assembly

    3.5 Replacing the Control Panel Assembly 1. Follow the steps in Before You Begin to prepare the printer. 2. Open the top cover. For how to open the top cover, refer to Replacing the Platen Roller Assembly. 3. Remove the top cover. For how to remove the top cover, refer to Replacing the Top Cover.
  • Page 31 5. Flip over the control panel board. Carefully push the two black tabs in the indicated direction to unlock the white FFC and disconnect the FFC from the control panel board 6. Carefully flip up the tab to unlock the control panel FPC.
  • Page 32 7. Remove the keypad and then carefully detach the control panel with its bracket from the control panel board. Note: For models shipped with a wireless or B module, when replacing the control panel assembly, the NFC tag MUST luetooth be transferred to the new control panel assembly.

  • Page 33: Replacing The Rtc Module

    3.6 Replacing the RTC Module 1. Follow the steps in Before You Begin to prepare the printer. 2. Remove the single screw securing the RTC module cover in place. 3. Disconnect the RTC battery cable from the main board.
  • Page 34 4. Pull the latch in the indicated direction to release the RTC battery from its compartment. Note: The RTC module kit you purchase will not come equipped with the RTC battery (CR2032). As a result, the RTC battery MUST be transferred to the new RTC module. DO NOT dispose the RTC battery. 5.

  • Page 35: Replacing The Lower Cover

    3.7 Replacing the Lower Cover 1. Follow the steps in Before You Begin to prepare the printer. 2. Remove the RTC battery cover. For how to remove the RTC battery cover, refer to Replacing the RTC Module. 3. Remove the four screws securing the lower cover in place.
  • Page 36 4. Disconnect the power switch cable from the main board and remove the lower cover. 5. Reverse the steps to install the lower cover.

  • Page 37: Replacing The Main Board

    3.8 Replacing the Main Board CAUTION: To prevent electrostatic damage to the electronic components, always wear an ESD wrist strap properly grounded when handling circuit boards. 1. Follow the steps in Before You Begin to prepare the printer. 2. Remove the RTC module. For how to remove the RTC module, refer to Replacing the RTC Module.
  • Page 38 5. Disconnect all cables from the main board to separate the main board from the printer. Note: When disconnecting the flat white FFC, slightly push the two tabs to unlock the connector and then release the FFC. 6. Reverse the steps to install the main board.

  • Page 39: Replacing The Sd Card Board

    3.9 Replacing the SD Card Board 1. Follow the steps in Before You Begin to prepare the printer. 2. Remove the RTC module. For how to remove the RTC module, refer to Replacing the RTC Module. 3. Remove the lower cover. For how to remove the lower cover, refer to Replacing the Lower Cover.

  • Page 40: Replacing The Stepping Motor

    3.10 Replacing the Stepping Motor 1. Follow the steps in Before You Begin to prepare the printer. 2. Remove the RTC module. For how to remove the RTC module, refer to Replacing the RTC Module. 3. Remove the lower cover. For how to remove the lower cover, refer to Replacing the Lower Cover.
  • Page 41 6. Disconnect the stepping motor cable from the main board. 7. Remove the two screws securing the stepping motor in place and then remove the motor. 8. Reverse the steps to install the stepping motor.

  • Page 42: Replacing The Head Open Sensor

    3.11 Replacing the Head Open Sensor 1. Follow the steps in Before You Begin to prepare the printer. 2. Remove the RTC module. For how to remove the RTC module, refer to Replacing the RTC Module. 3. Remove the lower cover. For how to remove the lower cover, refer to Replacing the Lower Cover.

  • Page 43: Replacing The Black Mark Sensor

    3.12 Replacing the Black Mark Sensor 1. Follow the steps in Before You Begin to prepare the printer. 2. Open the RTC module cover. For how to open the module cover, refer to Replacing the RTC Module. 3. Remove the lower cover. For how to remove the lower cover, refer to Replacing the Lower Cover.
  • Page 44 6. Remove the black mark sensore from the top side of the printer. 7. Reverse the steps to install the black mark sensor.

  • Page 45: Replacing The Ribbon End Sensor

    3.13 Replacing the Ribbon End Sensor 1. Follow the steps in Before You Begin to prepare the printer. 2. Remove the RTC module. For how to remove the RTC module, refer to Replacing the RTC Module. 3. Remove the lower cover. For how to remove the lower cover, refer to Replacing the Lower Cover.
  • Page 46 5. Remove the top cover. For how to remove the top cover, refer to Replacing the Top Cover. 6. Remove the single screw securing the ribbon end sensor in place and then remove the head open sensor. 7. Reverse the steps to install the ribbon end sensor.

  • Page 47: Replacing The Hook Assembly

    3.14 Replacing the Hook Assembly 1. Follow the steps in Before You Begin to prepare the printer. 2. Remove the top cover. For how to remove the top cover, refer to Replacing the Top Cover. 3. Remove the two screws securing the hook assembly in place and then release the two springs from their corresponding rib on the chassis.
  • Page 48 5. Lift up to remove the gears from the top cover. 6. Rotate the right hook in the indicated direction and then remove the hook from the top cover. Repeat the same process to remove the left hook from the top cover. 7.

  • Page 49: Installing The Wi-Fi / Bluetooth Module

    3.15 Installing the Wi-Fi / Bluetooth Module Wi-Fi Module Kit Bluetooth Module Kit NFC Tag NFC Tag Bluetooth Cable Wi-Fi Cable Bluetooth Module Wi-Fi Module Note: This section demonstrates how to install the Wi-Fi module. The same process is also applicable to the installation of Bluetooth module.
  • Page 50 4. Connect the RTC cable and the white end of Wi-Fi module cable to the main board as indicated. Wi-Fi Module Connector RTC Module Connector 5. Install the single screw to secure the Wi-Fi module cover in place. 6. Install the NFC tag on the LCD module bracket. For how to install the NFC tag on the LCD module bracket, refer to Replacing the Control Panel Assembly.

  • Page 51: Installing The Cutter Module

    3.16 Installing the Cutter Module 1. Follow the steps in Before You Begin to prepare the printer. 2. Open the top cover. For how to open the top cover, refer to Replacing the Platen Roller Assembly. 3. Remove the lower front panel. 4.
  • Page 52 5. Press down to install the module ensuring that the ribs on the module are correctly inserted into the indicated openings. NOTE: Make sure that the cable is completely threaded through and is not pressed throughout the installation process. 6. Remove the single screw securing the RTC module cover in place and then open the cover.
  • Page 53 7. Connect the cutter module’s cable to the connector on the main board. 8. Reassemble the RTC module cover and install the single screw to secure the cover in place.

  • Page 54: Installing The Peel-Off Module

    3.17 Installing the Peel-off Module 1. Follow the steps in Before You Begin to prepare the printer. 2. Open the top cover. For how to open the top cover, refer to Replacing the Platen Roller Assembly. 3. Remove the lower front panel. 4.
  • Page 55 5. Thread the module’s cable through the opening on the front side of the printer. 6. Press down to install the module ensuring that the ribs on the module are correctly inserted into the indicated openings.
  • Page 56 7. Close the peel roller. 8. Remove the single screw securing the RTC module cover in place and then open the cover.
  • Page 57 9. Connect the module’s cable to the connector on the main board. 10. Reassemble the RTC module cover and install the single screw to secure the cover in place.

  • Page 58: Installing The Narrow Media Adaptor

    3.18 Installing the Narrow Media Adaptor 1. Open the printer’s top cover and then carefully pull to separate the media holders. 2. Press down the media holder lock to secure the media holders in place. 3. Remove the single screw secure the 3-inch core in place and then remove the 3-inch core from the media holder. 4.
  • Page 59 5. Repeat step 3 and 4 to install the other narrow media holder. 6. Orientate and place the two narrow media adapters on the printer as demonstrated.
  • Page 60 7. Push the two narrow media adapters in the indicated direction until each of the adapters clicks in place.

  • Page 61: Troubleshooting

    4 Troubleshooting Common Problems Problem Possible Cause Recovery Procedure  Plug the power cord in printer and outlet. The power cord is not properly Power indicator/ LCD does not illuminate  Switch the printer on. connected. The printer head is open. Please close the print carriages.
  • Page 62 Problem Possible Cause Recovery Procedure then check the IP address setting again.  Please reset the wireless device setting.  Select the correct printer port in the driver.  Printhead’s harness connector is not well connected with printhead. Turn off the printer and plug the connector again.
  • Page 63 Problem Possible Cause Recovery Procedure  SD card is damaged.  Use the supported capacity SD card.  SD card doesn’t insert correctly. SD card is unable to use  Insert the SD card again.  Use the non-approved SD card manufacturer.
  • Page 64 Problem Possible Cause Recovery Procedure  If the label is moving to the left side, please move the label guide to right.  Label size is not specified properly.  Check if label size is setup correctly.  Sensor sensitivity is not set ...
  • Page 65 Recovery Procedure  Calibrate the sensor sensitivity again.  Set the correct label size and gap size.  Enter LCD menu (or via TSC Console) to fine tune the parameter of Shift Y.  If using the software BarTender, please set the vertical offset in the driver.

  • Page 66: Maintenance

    5 Maintenance This session presents the clean tools and methods to maintain the printer. ◼ For Cleaning Depending on the media used, the printer may accumulate residues (media dust, adhesives, etc.) as a by-product of normal printing. To maintain the best printing quality, you should remove these residues by cleaning the printer periodically. Regularly clean the printhead and supply sensors once change a new media to keep the printer at the optimized performance and extend printer life.

  • Page 67: Cleaning Tools

    ◼ Always taking personal precaution when using any cleaning agent. Cleaning Tools: ◼ Cotton swab ◼ Lint-free cloth ◼ Brush with soft non-metallic bristles ◼ Vacuum cleaner ◼ 75% Ethanol (for disinfecting) ◼ 99% Isopropyl alcohol (for printhead and platen roller cleaning) ◼...
  • Page 68 Printer Part Method Interval Clean the exterior surfaces with a clean, lint-free cloth (water- As needed Exterior dampened cloth). If necessary, use a mild detergent or desktop cleaning solution then use the 75% Ethanol to wipe it. Clean the interior of the printer by removing any dirt and lint with a Interior vacuum cleaner, as described above, or use a brush with soft non- As needed...
  • Page 69 History Revision Date Description Editor Peter Yao 2023/11/15 Official release.
  • Page 70 www.tscprinters.com...

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