Related Manuals for TSC DH220 Series
Summary of Contents for TSC DH220 Series
- Page 1 Desktop Barcode Printer DH220 Series Direct Thermal Series Models DH220/ DH320 DH220T/ DH320T DH220THC/ DH320THC 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...
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Page 3: Table Of Contents
Contents Introduction ..............................4 Printer Features ................................5 Electronics ..............................8 Summary of the Board Connectors ..........................8 Interface Pin Configuration ............................. 20 Replacing Parts ............................22 Before You Begin ................................22 Replacing the Platen Roller Assembly ..........................23 Replacing the Printhead & Upper Black Mark Sensor ....................25 Replacing the Top Cover .............................. - Page 4 3.19 Installing the Narrow Media Adaptor ..........................53 Troubleshooting ............................56 Common Problems ................................. 56 Maintenance ..............................61 Revise History ..............................64...
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Page 5: Introduction
Thank you very much for purchasing TSC bar code printer. The DH220 series of thermal desktop barcode printers support more printing applications than any other printer in its class. The four-inch wide DH220 series can address everything from higher volume 4x6 shipping labels, higher resolution product marking and graphic solutions, to high resolution labels used in electronics marking applications. -
Page 6: Printer Features
1.1 Printer Features Front View DH220 Series DH220T Series Media viewer window Operating buttons Cover lever microSD card slot Power switch... - Page 7 Interior View Printhead Upper black mark sensor Media holder Media cover holder lock Media holder lock Black mark sensor Platen roller Lower front panel...
- Page 8 Rear View Power Jack USB interface USB host RS-232C interface Ethernet LAN port...
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Page 9: Electronics
2 Electronics 2.1 Summary of the Board Connectors Main board Power supply output (24V DC) connector System reset switch USB device connector USB host connector RS-232C connector Ethernet connector ESD cable connector Panel touch and key connector LCD connector TPH connector Micro SD card connector NFC connector Black mark sensor connector for print side (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 Panel touch and key connector Definition 3.3V KEY_SDA KEY_SCL KEY_INT TOUCH_INT...
- Page 13 Function Pin Definition 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 Black mark sensor connector for print side (transmitter) Definition 3.3V Black Mark Sensor for Print Side (transmitter) Black mark sensor connector for print side (receiver) Definition Black Mark Sensor for Print Side (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 / RFID connector 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...
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Page 21: Interface Pin Configuration
2.2 Interface Pin Configuration Function Pin Configuration USB device Configuration USB host Configuration RS-232C Configuration... - Page 22 Function Pin Configuration Ethernet LAN port Definition...
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Page 23: Replacing Parts
3 Replacing 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: Protect yourself from ESD and wear protective gloves. -
Page 24: Replacing The Platen Roller Assembly
3.2 Replacing the Platen Roller Assembly Follow the steps in Before You Begin to prepare the printer. Open the printer cover by pulling the green levers, located on each side, toward the front of the printer, then lift the printer cover. Remove the lower front panel as shown. - Page 25 Pulling upward to remove/ replace the platen roller assembly. Reassemble the parts in the reverse procedure. Note: The default position of the platen roller tab is shown below (with a mark). Default setting...
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Page 26: Replacing The Printhead & Upper Black Mark Sensor
3.3 Replacing the Printhead & Upper Black Mark Sensor CAUTION: To prevent electrostatic damage to electronic components, ground yourself by touching an unpainted part of the printer frame before removing or installing the printhead assembly. Follow the steps in Before You Begin to prepare the printer. - Page 27 Slide the cover down. Disconnect the upper black mark sensor connector to remove the cover. Upper black mark sensor assembly Disconnect the printhead harness and the ground wire. Remove/ Replace the printhead assembly. Ground wire Printhead harness Printhead assembly CAUTION: Oils from your hands can damage the light brown area (heating elements) of the printhead.
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Page 28: Replacing The Top Cover
3.4 Replacing the Top Cover Follow the steps in Before You Begin to prepare the printer. Open the printer cover by pulling the green levers, located on each side, toward the front of the printer, then lift the printer cover. Remove four screws on the printer top inner cover as shown below. -
Page 29: Replacing The Control Panel Assembly
3.5 Replacing the Control Panel Assembly Follow the steps in Before You Begin to prepare the printer. Refer to Replacing the Top Cover to remove the printer top cover. For LCD version (For LED version, go to the next step), remove two screws on LCD bracket and one connector as shown below. Disconnect two flat cables on back of LCD control panel board. - Page 30 Turn the plug (Brown) 90 degrees upwards. LCD module Keypad Control panel board Note: When installing the control panel assembly, the ground cable must be secured underneath the control panel bracket. If your printer is equipped with a wireless module (Wi-Fi or Bluetooth), please note that the NFC tag should be installed back into the LCD ...
- Page 31 For LED version, remove three screws and one connector on LED board as shown below. Remove two screws on back of LED board to replace the LED bar and the keypad. LED bar Keypad Back side of LED board LED board Reassemble the parts in the reverse procedures.
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Page 32: Replacing The Lower Cover
3.6 Replacing the Lower Cover Follow the steps in Before You Begin to prepare the printer. Remove two screws on the rear of printer to remove the interface cover. Put the printer upside down. Remove one screw on the RTC cover to disconnect the RTC connector from main board first. (disconnect the Wi-Fi or MFi BT cable if installed.) Remove the cover. - Page 33 Remove four screws on the printer lower cover. Remove the lower cover to disconnect the power switch connector (blue). Reassemble the parts in the reverse procedures.
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Page 34: Replacing The Rtc Module
3.7 Replacing the RTC Module Follow the steps in Before You Begin to prepare the printer. Put the printer upside down. Remove one screw on the RTC module to disconnect the RTC cable from main board. RTC connector Remove/ Replace the RTC module. Please note that RTC battery (CR2032) is not included in the RTC module kit. Reassemble the parts in the reverse procedures. -
Page 35: Replacing The Main Board
3.8 Replacing the Main Board Follow the steps in Before You Begin to prepare the printer. Refer to Replacing the Lower Cover to remove the printer lower cover. CAUTION To prevent electrostatic damage to electronic components, always wear a properly grounded static wrist strap when you handle circuit boards. Remove one screw on main board. -
Page 36: Replacing The Sd Card Board
3.9 Replacing the SD Card Board Follow the steps in Before You Begin to prepare the printer. Remove the SD card, if one is installed, from the SD card slot. Refer to Replacing the Lower Cover to remove the printer lower cover. Remove two screws on SD card board. -
Page 37: Replacing The Stepping Motor
3.10 Replacing the Stepping Motor Follow the steps in Before You Begin to prepare the printer. Refer to Replacing the Lower Cover to remove the printer lower cover. Disconnect the stepping motor connector from the main board. Remove two cable ties as shown. Remove two screws securing the stepping motor to the base of the printer frame. -
Page 38: Replacing The Hook Assembly
3.11 Replacing the Hook Assembly Follow the steps in Before You Begin to prepare the printer. Refer to Replacing the Top Cover to remove the printer top cover. Remove the control panel assembly. For how to remove the control panel assembly, refer to Replacing the Control Panel Assembly. -
Page 39: Replacing The Black Mark Sensor
3.12 Replacing the Black Mark Sensor Follow the steps in Before You Begin to prepare the printer. Refer to Replacing the Stepping Motor to remove the stepping motor. Remove two screws to remove the mylar. Disconnect the black mark sensor cable connector and remove one screw securing black mark sensor to the fixing plate. Remove/ Replace the black mark sensor. -
Page 40: Replacing The Head Open Sensor
3.13 Replacing the Head Open Sensor Follow the steps in Before You Begin to prepare the printer. Refer to Replacing the Lower Cover to remove the printer lower cover. Remove one screw securing head open sensor to the printer frame. Refer to the Replacing the Main Board to disconnect the head open sensor cable connector from main board. -
Page 41: Replacing The Media Holder
3.14 Replacing the Media Holder Follow the steps in Before You Begin to prepare the printer. Refer to Replacing the Main Board to remove the main board. Remove two screws to remove the mylar. Use a tool to release the spring as shown below. - Page 42 Remove the four screws securing the media holders in place and then replace the media holders. Reverse the steps of the removal procedure.
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Page 43: Installing The Wi-Fi/ Bluetooth Module
3.15 Installing the Wi-Fi/ Bluetooth Module Wi-Fi Module Kit: Bluetooth Module Kit: Cable Cable NFC tag NFC tag Bluetooth module Wi-Fi module Note The Wi-Fi module and the Bluetooth module are installed in the same way, and this section mainly demonstrates the Wi-Fi module. Follow the steps in Before You Begin to prepare the printer. - Page 44 Connect the black end of Wi-Fi cable to Wi-Fi module and install the RTC battery on Wi-Fi module. Note: RTC battery (CR2032) is not included in the wireless module kit. Connect another side of Wi-Fi cable and RTC cable into the main board. Install the Wi-Fi module to the bottom of the printer with one screw.
- Page 45 For LED version printer, refer to Replacing the Top Cover to stick the NFC tag on the LED top cover. For LCD version printer, refer to Replacing the Control Panel Assembly to stick the NFC tag on the LCD module bracket. LED version (NFC tag on top cover) LCD version (NFC tag on LCD module bracket) Reassemble the parts in the reverse procedures.
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Page 46: Installing The Cutter Module
3.16 Installing the Cutter Module Follow the steps in Before You Begin to prepare the printer. Open the top cover to remove the lower front panel as shown. Lower front panel Thread the module’s cables through the opening on the front side of the printer. - Page 47 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 fed completely into the printer and that the cable is not pressed during installation. Remove one screw securing the RTC module cover in place and then open the cover.
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Page 48: Installing The Peel-Off Module
3.17 Installing the Peel-off Module Follow the steps in Before You Begin to prepare the printer. Open the top cover to remove the lower front panel as shown. Lower front panel Open the peel roller. - Page 49 Thread the module’s cable through the opening on the front side of the printer. Press down to install the module ensuring that the ribs on the module are correctly inserted into the indicated openings. Close the peel roller. Note: Make sure that the cable is fed completely into the printer and that the cable is not pressed during installation.
- Page 50 Turn the printer upside down to remove the screw securing the RTC module cover in place and then open the cover. Connect the module’s cable harness to the connector on the main board. Reassemble the RTC module cover and install the single screw to secure the cover in place.
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Page 51: Installing The Linerless Tear/Cutter Module
3.18 Installing the Linerless Tear/Cutter Module Linerless Cutter Kit Linerless Tear Kit 1. Linerless cutter 2. Linerless tear 3. Label tray 4. Linerless platen roller Follow the steps in Before You Begin to prepare the printer. Refer to Replacing the Platen Roller Assembly to replace the roller with the linerless roller (white). - Page 52 Thread the linerless module’s cable through the opening on the front side of the printer. Linerless Cutter Linerless Tear Press down to install the linerless module ensuring that the ribs on the module are correctly inserted into the indicated openings. Note: Make sure that the cable is fed completely into the printer and that the cable is not pressed during installation.
- Page 53 Remove the single screw securing the RTC module cover in place and then open the cover. Connect the linerless module’s cable to the connector on the main board. Linerless Cutter Linerless Tear Install the label tray onto the linerless module. Linerless Cutter Linerless Tear...
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Page 54: Installing The Narrow Media Adaptor
3.19 Installing the Narrow Media Adaptor Narrow Media Adaptor Kit 1. Narrow media core x 2 2. Narrow media adapter (L) 3. Narrow media adapter (R) 4. Screw x 2 Open the printer’s top cover and separate the media holders, then press down the media holder lock switch to fix the media holder. Remove the two screws on media holder as shown to remove both side of media cores. - Page 55 Secure the narrow media cores on both side of media holder with the two screws. Remove the two screws on front of media holder as shown to remove both side of media guides. Media guides...
- Page 56 Secure the two narrow media adapters inside the media guide with the two screws. Narrow media adapters...
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Page 57: Troubleshooting
4 Troubleshooting Common Problems Problem Possible Cause Recovery Procedure Plug the power cord in printer and outlet. Power indicator/ LCD does not power cord properly Switch the printer on. connected. illuminate The printer head is open. Please close the print carriages. LED turn on (Carriage Open) ... - Page 58 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. Print head’s harness connector is not well connected with printhead. Turn off the printer and plug the connector again.
- Page 59 Problem Possible Cause Recovery Procedure Use the non-approved SD card manufacturer. Reload the supply. Media is loaded incorrectly. Clean the print head. Dust or adhesive accumulation on Clean the platen roller. the print head. ...
- Page 60 Set the correct label size and gap size. Label size is incorrect. The printing position of small label is Enter LCD menu (or via TSC Console) to incorrect The parameter Shift Y is incorrect. fine tune the parameter of Shift Y.
- Page 61 Problem Possible Cause Recovery Procedure...
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Page 62: 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 print head and supply sensors once change a new media to keep the printer at the optimized performance and extend printer life. - Page 63 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 64 Printer Part Method Interval Use brush with soft non-metallic bristles or a vacuum cleaner, to remove paper dust. Sensor Monthly Clean upper and lower media sensors to ensure reliable Top of Form and Paper Out sensing. Clean the exterior surfaces with a clean, lint-free cloth (water- Exterior As needed dampened cloth).
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Page 65: Revise History
Revise History Date Content Editor Camille First release 2023/11/6 Modify the “Maintenance” section (add the linerless cleaning info.) 2024/3/12 Camille... - Page 66 www.tscprinters.com...
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