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TSC TDP-643R PLUS Service Manual

Direct thermal bar code printer
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TDP-643R PLUS
DIRECT THERMAL BAR CODE PRINTER
SERVICE
MANUAL

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Summary of Contents for TSC TDP-643R PLUS

  • Page 1 TDP-643R PLUS DIRECT THERMAL BAR CODE PRINTER SERVICE MANUAL...

  • Page 2: Table Of Contents

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL Table of Contents FUNDAMENTALS ABOUT THE SYSTEM .............. 1 1.1 Overview .......................... 1 1.1.1Front View ......................1 1.1.2 Rear view ......................2 1.2 Printer Specification ......................3 1.2.1 Printer ........................3 1.2.2 Indicators and Button .................... 3 1.2.3 Communication Interface ..................
  • Page 3 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 4.4 Stepping Motor Replacement ..................27 4.5 Gap Sensor Transmitter/Receiver Replacement ............. 29 4.6 Platen and Teflon Tube Replacement ................30 TROUBLE SHOOTING ..................32 5.1 Error Messages ....................... 32 5.2 Trouble Shooting ......................33 5.3 Self Test and Gap Sensor Calibration ................

  • Page 4: Fundamentals About The System

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 1. FUNDAMENTALS ABOUT THE SYSTEM 1.1 Overview 1.1.1Front View Fig. 1-1 Front View of TDP-643R PLUS 1. ERROR Indicator 2. READY Indicator 3. FEED Button 4. Label Dispense Opening - 1 -...

  • Page 5: Rear View

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 1.1.2 Rear view Fig. 1-2 Rear View of TDP-643R PLUS 1. Label Insert Opening 2. Power Switch 3. Power Jack 4. Centronics Interface Connector 5. RS-232 Port - 2 -...

  • Page 6: Printer Specification

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 1.2 Printer Specification 1.2.1 Printer Type Direct Thermal Printing Resolution 203 DPI ( 8 dots per mm) 1.5”, 2”, or 3”/sec Printing speed Five alphanumeric Fonts from 0.059”H (1.5 mm) to 0.23” (6.0mm), expendable vertically and horizontally up to 8X.

  • Page 7: Power Requirement

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 1.2.4 Power Requirement Input Voltage Switching power, 100-240 VAC, 50-60 Hz Output Voltage 24 VDC Circuit Protection 2A maximum 1.2.5 Environment Operation Temperature 41 F~ 95 F ( 5 C ~35 Storage Temperature...

  • Page 8: Communication Interface

    RS-232 or Centronics interface. 1.3.1 Serial Interface The serial port of TDP-643R PLUS bar code printer is factory set to 9600 baud, no parity, 8 data bits and one stop bit using Xon/Xoff protocol as well as DSR/DTR handshaking.

  • Page 9: Parallel Interface

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 1.3.2 Parallel Interface Connector Type: Centronics 36-pin Function Transmit /Strobe Host Data 0~7 Host 10-11 Busy Printer Paper empty Printer Connect to 5V DC Printer 14-16 Ground 19-30 /ERROR Printer Ground Printer 33-35 Ground 1.4 Available Bar Codes...

  • Page 10: Effective Print Area

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 1.5 Effective Print Area Label/Ticket Length 12mm~2286mm Effective Print Length 10mm~2284mm Label/Ticket Width 25.4mm~114mm Effective Print Width 23.4mm~112mm No Print Area - 7 -...

  • Page 11: Supply Specifications

    2.1 Types of Paper Two types of media are available for TDP-643R PLUS: label and tag. In TDP-643R PLUS, there are two types of sensors for paper: gap sensor and black mark sensor. Label and tag can be further classified into direct thermal type or thermal transfer type.
  • Page 12 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL - 9 -...

  • Page 13: Electronics

    3.1 Circuit Description Fig. 3.1 MCU Circuit Diagram The above is the MCU circuit diagram. The main board of TDP-643R PLUS includes five system blocks: Memory System (decoder & memory block) Motor System (stepping motor and cutter block) C. Print head System D.
  • Page 14 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL The figure below shows the PCB system area: Cutter System Motor System Power System Print Head System Decoder Communication System Port System Sensor System Memory System Real Time Clock Fig. 3.2 System Block of PCB...

  • Page 15: Mcu Pin Description

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 3.2 MCU Pin Description Port I/O Initial High Function Instruction Pull Up RXD0 RXD for RS232 TXD0 TXD for RS232 Pull Up RTS for RS232 CTS for RS232 TXD1 DI for TPH SCK1...
  • Page 16 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL PE13 Pull Up Enable PE13 STB4 for TPH PE14 PE14 RTC I/O PE15 Pull Up Enable PE15 HEAD SENS Vdet for TPH Voltage detect TM for TPH temperture Enable PF2 MEM load & Hardware version...

  • Page 17: Reset Circuit

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 3.3 Reset Circuit Fig. 3.3 Reset Circuit This is the reset circuit .The TS809CXA IC outputs the system reset signal of “LOW” when the driving voltage is lower than 4.63V (Typical). 3.4 Memory System Fig.

  • Page 18: Sensor & Key

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 3.5 Sensor & key Fig. 3.5 Semsor & Key Circuit Diagram JP1 is the connector which connects to the LEDs and Keys.The signal of LED is High when the LED is bright; otherwise, it is low.

  • Page 19: Real-Time Clock Circuit

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 3.6 Real-Time Clock Circuit Fig. 3.6 Real-Time Clock Circuit HT1381 is serial time keeper. 3.7 Decode Circuit Fig. 3.7 Decode Circuit - 16 -...
  • Page 20 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL CS0: (0000 0000 ~ 003F FFFF) CS1: (0040 0000 ~ 007F FFFF) CS2: (0080 0000 ~ 00BF FFFF) CS3: (00C0 0000 ~ 0FFF FFFF) ROM1: (0000 0000 ~ 001F FFFF) ROM2: (0020 0000 ~ 003F FFFF)

  • Page 21: Thermal Head Drive/Protection And History Control Circuit

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 3.8 Thermal Head Drive/Protection and History Control Circuit Fig. 3.8 Thermal Head Drive/ Protection and History Control Circuit This is the thermal head drive/protection. CLK and /LAT connected to thermal head control clock and data latch respectively. STB1 & STB2 determines whether to heat the thermal head or not.

  • Page 22: 5V Converter Circuit

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 3.9 24V/5V Converter Circuit Fig. 3.9 24V/5V Converter Circuit Figure 3.10 is the DC-TO-DC (DC24V to DC 5V) converter circuit, which is a boost system circuit structure. U24 is the DC-TO-DC converter IC, which can convert voltage by using PWM control mode.
  • Page 23 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL Pin on Step PHASE JP12 Table1 Stepping Motor Pattern MOTOR CURRENT I0 I1 HIGH LEVEL 100% L MEDIUM LEVEL LOW LEVEL ZERO CURRENT Table2 Stepping motor power pattern - 20 -...

  • Page 24: Communication (Serial & Parallel Port) Circuit

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 3.11 Communication (Serial & Parallel Port) Circuit Fig. 3.11 RS-232 (Serial Port) Circuit The RS-232 Circuit is for use with the externally connected personal computer and keyboard unit. JP13 connects to PC serial port through the RS-232 cable.

  • Page 25: Cutter Drive Circuit

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 3.12 Cutter Drive Circuit Fig. 3.12 Cutter Drive Circuit This is the cutter drive circuit. The RESET signal is 1 when the printer is turned on. CUTTER controls the activation of the cutter. The cutter is activated when CUTTER signal is “Low”.

  • Page 26: Mechanism

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 4. MECHANISM 4.1 Mainboard Replacement 1. Turn off printer power. 2. Remove power cord and RS-232 and/or parallel port cable. 3. Form the button of the printer, remove the 6 screws. Rubber pad Screw Fig.
  • Page 27 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 6. Remove 2 hexagon screws and 2 screws on the rear of the printer. Screws Hexagon Screws Fig. 4-2 Remove screws on the rear of the printer 7. Remove 4 mainboard fixing screws.

  • Page 28: Stepping Motor Driver Ic Replacement

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 4.2 Stepping Motor Driver IC Replacement 1. Turn off printer power. 2. Remove power cord and RS-232 and/or parallel port cable. 3. Form the button of the printer, remove the 6 screws. 4. Remove the failed stepping motor driver IC with an IC clamp.

  • Page 29: Print Head Replacement

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 4.3 Print Head Replacement 1. Turn off printer power. 2. Remove power cord and RS-232 and/or parallel port cable. 3. Form the button of the printer, remove the 6 screws. 4. Detach the printer top cover and disconnect peel-off sensor connector from the cover.

  • Page 30: Stepping Motor Replacement

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 4.4 Stepping Motor Replacement 1. Turn off printer power. 2. Remove power cord and RS-232 and/or parallel port cable. 3. Form the button of the printer, remove the 6 screws. 4. Detach the printer top cover and disconnect peel-off sensor connector from the cover.
  • Page 31 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 8. Loosen 2 motor fixing screws and disconnect motor connecter. Motor fixing screw Motor fixing screw Fig. 4-8 Loosen 2 motor fixing screws 9. Replace damage motor. 10. Assemble the detached parts in reverse order of the above.

  • Page 32: Gap Sensor Transmitter/Receiver Replacement

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 4.5 Gap Sensor Transmitter/Receiver Replacement 1. Turn off printer power. 2. Remove power cord and RS-232 and/or parallel port cable. 3. Form the button of the printer, remove the 6 screws. 4. Detach the printer top cover and disconnect peel-off sensor connector from the cover.

  • Page 33: Platen And Teflon Tube Replacement

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 4.6 Platen and Teflon Tube Replacement 1. Turn off printer power. 2. Remove power cord and RS-232 and/or parallel port cable. 3. Form the button of the printer, remove the 6 screws. 4. Detach the printer top cover and disconnect peel-off sensor connector from the cover.
  • Page 34 TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 10. Replace the platen. Platen Fig. 4-11 Remove platen 11. Turn the teflon tube driving rod with a screw. 12. Push the driving rod out of the fixture. 13. Replace the teflon tube.

  • Page 35: Trouble Shooting

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 5. TROUBLE SHOOTING 5.1 Error Messages Syntax Error: The command format is incorrect. Check user‟s manual to be sure. The serial port setting is incorrect. Check protocol in dump mode and reset the printer.

  • Page 36: Trouble Shooting

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 5.2 Trouble Shooting Item Problems Solutions  Check the printing mode setting and Ribbon does not advance. reset the printer.  Clean the print head. Poor print quality.  Adjust the print density setting.

  • Page 37: Diagnosis Operation Procedure

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 5.5 Diagnosis Operation Procedure When the power is turned on without any button pressed, self diagnosis is performed automatically to test the available memory. If any error occurs during this period, the ERR light will flash.

  • Page 38: Cleaning The Print Head

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL 5.7 Cleaning the Print Head The printer should be cleaned regularly to retain high quality and optimum performance. The greater the usage of the printer, the more frequent the cleaning. 1. Always turn off the printer before cleaning the print head. Allow the printhead to cool for a minimum of one minute.

  • Page 39: Update History

    TDP-643R PLUS BAR CODE PRINTER SERVICE MANUAL Update History Date Content Editor 2006/8/17 1. Modify the 5 item 20 : Main board ass'y from 98-0200046-10LF to Camille 98-0200046-20LF 2006/8/28 1. Add the 5 item 20 : Main board ass'y + RTC Camille 2.
  • Page 40 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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