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TSC TTP-243 Series Service Manual

Thermal transfer / direct thermal bar code printer
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TTP/TDP 243/342
THERMAL TRANSFER / DIRECT THERMAL
BAR CODE PRINTER
SERVICE
MANUAL

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  • Page 1 TTP/TDP 243/342 THERMAL TRANSFER / DIRECT THERMAL BAR CODE PRINTER SERVICE MANUAL...

  • Page 2: Table Of Contents

    TTP-243 Bar Code Printer Service Manua Table Of Contents 1. FUNDAMENTALS ABOUT THE SYSTEM ................ 1 1.1 Features of the TTP/TDP-243 Series................1 1.2 Model Naming Syntax ....................1 1.3 Overview ........................2 1.3.1 Front View......................2 1.3.2 Rear View ......................3 1.4 Basic Specifications .....................
  • Page 3 TTP-243 Bar Code Printer Service Manua 3.14 Flash memory Replacement ..................33 3.15 Cutter, DC Motor, Stepping Motor Driver IC Replacement ........34 4. MECHANISM ........................35 4.1 Cutter Installation ....................... 35 4.2 Print Head Replacement .................... 36 4.3 DC Motor Replacement....................38 4.4 Ribbon Rewind Spindle Encoder Replacement ............

  • Page 4: Fundamentals About The System

    TTP-243 Bar Code Printer Service Manua 1. FUNDAMENTALS ABOUT THE SYSTEM 1.1 Features of the TTP/TDP-243 Series 1. TTP-243 bar code printer prints bar codes, characters, logos, on various types of labels and tickets by direct thermal or thermal transfer printing. 2 TTP-243 adopts a “BASIC-like”...

  • Page 5: Overview

    TTP-243 Bar Code Printer Service Manua 1.3 Overview 1.3.1 Front View Operation Panel Top Cover Cover Release Button Front Panel Fig. 1.1 Front View of TTP-243 Note: The one difference between TTP model and TDP model is the ribbon mechanism.

  • Page 6: Rear View

    TTP-243 Bar Code Printer Service Manua 1.3.2 Rear View Label Entrance (External Mount Use) Centronics Interface RS-232 Interface Power Switch DC Power Jack Fig. 1.2 Rear view of TTP-243...

  • Page 7: Basic Specifications

    TTP-243 Bar Code Printer Service Manua 1.4 Basic Specifications Thermal transfer and direct thermal printing High dot density printing (203 dots/inch) Selectable print speeds at 1.5”, 2.0” or 3.0” per second Supports parallel and serial interface Maximum media width up to 4.4” (114 mm) Adjustable label edge guide International character sets Print area is 4.09”W x 90”L (without any file downloaded in the printer memory)
  • Page 8 TTP-243 Bar Code Printer Service Manua RS-232 Interface Pin Configuration: Host Function 9 Pin 25 Pin 9 Pin Printer Function...

  • Page 9: Effective Print Area

    TTP-243 Bar Code Printer Service Manua 1.5 Effective Print Area Label/Ticket Length 12mm~2286mm Effective Print Length 10mm~2284mm Label/Ticket Width 25mm~103mm Effective Print Width 23mm~101mm No Print Area 1.6 Available Bar Codes Code 39 Code 93 Code 128 UCC Code 128, Subsets A, B, and C Codabar Interleaved 2 of 5 EAN-8, EAN-13, EAN-128...

  • Page 10: Various Sensors

    TTP-243 Bar Code Printer Service Manua 1.7 Various Sensors (1) Feed Gap Sensor The feed gap sensor detects a label gap to locate the starting print position of the next label. The sensor is mounted 4 mm off the center line of the main mechanism. In case of Label (2) Black Mark Sensor The black mark sensor locates the position of label by emitting infrared rays onto the...
  • Page 11 TTP-243 Bar Code Printer Service Manua In case of Ticket The default sensor position is (1) as shown on the figure below. To change to the (2) position, the customer should notify the manufacturer in advance. There can be only one position for the sensor.

  • Page 12: Supply Specifications

    TTP-243 Bar Code Printer Service Manua 2. SUPPLY SPECIFICATIONS 2.1 Types of Paper Two types of media are available for TTP-243: label and ticket. In TTP-243, there are two types of sensors for paper: gap sensor and black mark sensor. Label and ticket can be further classified into direct thermal type or thermal transfer type.
  • Page 13 TTP-243 Bar Code Printer Service Manua...

  • Page 14: Ribbon Sizes And Shapes

    TTP-243 Bar Code Printer Service Manua 2.3 Ribbon Sizes and Shapes Item Specifications Ribbon shape Spool type Max. 110mm Ribbon width Min. 40mm Max. 110mm Ribbon winding width Min. 40mm Leading tape Polyester film, 335±5mm long End tape Polyester film (transparent), 250±5mm long φ67mm Max.

  • Page 15: Electronics

    TTP-243 Bar Code Printer Service Manua 3. ELECTRONICS 3.1 Circuit Description DO[0..7] PH_DETECT SENSOR MA[0..9] MA[0..9] P73/AN3 A[8..15] COMMUNICATION SYSTEM P82/RXD0 P80/CTS0/RTS0 A0/MA0 P83/TXD0 A1/MA1 P81/CLK0 A2/MA2 P66/RTP12 A3/MA3 /ERROR /ERROR P67/RTP13 A4/MA4 SELECT SELECT P90/DMAACK0 A5/MA5 P102/INT2 A6/MA6 A7/MA7 P106/MA8 74HC32 P107/MA9...
  • Page 16 TTP-243 Bar Code Printer Service Manua Real Time Clock Communication Port Motor System Memory Decoder System Print Head Memory System Cutter System Power System External Memory Connector...
  • Page 17 TTP-243 Bar Code Printer Service Manua Fig. 3.2 System Block of PCB...

  • Page 18: Mcu Pin Description

    TTP-243 Bar Code Printer Service Manua 3.2 MCU Pin Description Name Input/Output Function Vcc, Vss Power supply Supply 5V±10% to Vcc and 0V to Vss. CNVss CNVss input Input This pin controls the processor mode. Connect to Vss for single-chip mode, and to Vcc for external ROM types.
  • Page 19 TTP-243 Bar Code Printer Service Manua A8/D8~ Address When the BYTE pin is set to “L” in memory A15/D15 medium-order/ expansion mode or microprocessor mode and data high-order external data bus is 16-bit width, high-order data (D15~D8) is input or output when /E output is “L”...

  • Page 20: Reset Circuit

    TTP-243 Bar Code Printer Service Manua 3.3 Reset Circuit /RESET CONNECT WITH MCU RESET PIN S-807 0.1u Fig. 3.3 Reset Circuit This is the reset circuit .The 80746ALO IC outputs the system reset signal of “LOW” when the driving voltage is lower than 4.6V (Typical). 3.4 Memory System A[8..18] A[0..18]...

  • Page 21: Connector Circuit Diagram

    TTP-243 Bar Code Printer Service Manua 3.5 Connector Circuit Diagram PH_DETECT PH_DERECT PH_DERECT CUTTER TER&PEEL +24V 74HC04 74HC04 74HC04 6 PIN /RESET RIBBON B.L. U11A DCMA 74LS14 0.1u DCMB MEM. C DC MOTOR DC_MOTOR_A BEAD DC_MOTOR_B Memory card connector GAP_EMITTER 6 PIN Fig.
  • Page 22 TTP-243 Bar Code Printer Service Manua P57: the detect pin of the decoder sensor. (normally at ‘high’ level) P53: the detect pin of the cutter sensor (check if the cutter is in right position, normally at ‘high” level) JP8: the connector which connects to the external memory module. CUTTER: the control pin of the CUTTER system.

  • Page 23: Real-Time Clock Circuit

    TTP-243 Bar Code Printer Service Manua 3.6 Real-Time Clock Circuit BUZZER /RES DO[0..7] DO[0..7] 5.6K RCLR 0.1u DS12887A Fig. 3.6 Real-Time Clock Circuit This is a real-time clock circuit. MCU will read the date/time and write the data when the signal of RTC is low.

  • Page 24: Decode Circuit

    TTP-243 Bar Code Printer Service Manua 3.7 Decode Circuit DO[0..7] A[8..23] CLKI/0 CLKI/0 OE/I9 OE/I9 CENTRONIC I/O7 /UCAS I/O7 ROM2 I/O6 /LCAS I/O6 I/O5 I/O5 I/O4 I/O4 I/O3 I/O3 I/O2 I/O2 I/O1 I/O1 ROM12 I/O0 /CAS I/O0 ROM11 74HC373 PALCE16V8 PALCE16V8 /RESET Fig.
  • Page 25 TTP-243 Bar Code Printer Service Manua FFFFFFH DRAM (INTERNAL RAM2) F00000H EFFFFFH DRAM E00000H (INTERNAL RAM1) 6FFFFFH FLASH ROM EXTERNAL ROM4 (MEMORY CARD) 600000H 5FFFFFH FLASH ROM 500000H EXTERNAL ROM3 (MEMORY CARD) 400001H RTC ADDRESS PORT 400000H RTC DATA PORT 380000H CENTRONIC PORT 2FFFFFH...

  • Page 26: Thermal Head Drive/ Protection And History Control Circuit

    TTP-243 Bar Code Printer Service Manua 3.8 Thermal Head Drive/ Protection and History Control Circuit 300DPI 200DPI STROBE1 HISTORY 74HC08 74HC08 74HC04 JP10 /LAT 300DPI 200DPI VH_POWER /LAT /LAT 220p VH_POWER STROBE2 STB2 /RESET STB1 74HC08 300p STROBE1 2SJ177 2SJ177 STB4 0.1u STB3...

  • Page 27: 5V Converter Circuit

    TTP-243 Bar Code Printer Service Manua 3.9 24V/5V Converter Circuit 0.01u +24V SR505 SW SPDT 330u Vref 1N5819 COMM_CHOKE 電解電容 34063 470/2W 10u/35V 220p 1500pF 1000u/35V 0.1u 470u 47u/35V 0.01u BEAT CHOKE Fig. 3.10 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.

  • Page 28: Stepping Motor And Dc Motor Driver/ Protection Circuit

    TTP-243 Bar Code Printer Service Manua 3.10 Stepping Motor And DC Motor Driver/ Protection Circuit +24V +24V BEAD FUSE2 FUSE2 L19 BEAD 0.1u JP12 470u L31 BEAD MOTOR_GND BEAD STEP MOTOR 0.1u BEAD 470u PHASE1 PHASE 0.01uF PBL3717/2 BEAD DCMA BEAD PHASE2 PHASE3...
  • Page 29 TTP-243 Bar Code Printer Service Manua The power of DC motor is on when DCM pin is at ’LOW’ level. PHASE3 determines the DC motor run direction (forward or backward).

  • Page 30: Communication (Serial & Parallel Port) Circuit

    TTP-243 Bar Code Printer Service Manua 3.11 Communication (Serial & Parallel Port) Circuit CGND U11C U11B U22A 74LS14 74LS74 220p 74LS14 220p 220p 220p 220p CVCC 220p CGND CENTRONIC 220p 220p JP14 220p DO[0..7] DO[0..7] 74LS374 BEAD CENTRONIC U11D 74LS14 U11E 0.1u CGND...

  • Page 31: Cutter Drive Circuit

    TTP-243 Bar Code Printer Service Manua 3.12 Cutter Drive Circuit U12B +24V RCext 150K 10u\TANT Cext IN4002 /RESET CTSENS TIF32C U20A 74HC123 2003 U20C CUTTER 2003 U20B 2003 CUTTER&PEEL PEEL U20D 2003 Fig. 3.13 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.

  • Page 32: Mainboard Replacement

    TTP-243 Bar Code Printer Service Manua 3.13 Mainboard Replacement 1. Turn off the printer power. 2. Remove the power cord and RS-232 and/or parallel port cable. 3. Open the top cover of the printer. 4. Remove the printer front panel. Fig.
  • Page 33 TTP-243 Bar Code Printer Service Manua 6. Release the cable tie and remove the peel-off sensor connector. Peel-Off Sensor Connector Cable Tie Cutter Connector Fig. 3.16 Cable tie and peel-off sensor connector 7. Remove the screws on the lower left and lower right corners of main mechanism. Fig.
  • Page 34 TTP-243 Bar Code Printer Service Manua 8. Remove the four screws of the internal label roll mount. Fig. 3.18 Remove screws of the label roll mount 9. Move the mechanism about 5 mm in the label feed direction. 10. Take out the internal label roll mount and remove the connector. Push Button Connector Ground Wire...
  • Page 35 TTP-243 Bar Code Printer Service Manua Connector Description External button, LED connector Ribbon sensor receiver connector Cutter and Peel off sensor connector Black mark sensor connector ribbon transmit sensor connector DC motor and encoder connector TPH head up switch connector Memory cartridge connector TPH connector JP12...

  • Page 36: Flash Memory Replacement

    TTP-243 Bar Code Printer Service Manua 3.14 Flash memory Replacement If files can not be stored in the FLASH memory or if the firmware can not be upgraded, the first LED turns ON and OFF incessantly to indicate the Flash memory fails. Please follow the steps below to replace it.

  • Page 37: Cutter, Dc Motor, Stepping Motor Driver Ic Replacement

    TTP-243 Bar Code Printer Service Manua 3.15 Cutter, DC Motor, Stepping Motor Driver IC Replacement Stepping Motor Cutter Driver IC Flash DC Motor Driver IC Memor Driver IC Fig. 3.22 Driver IC Locations If the DC motor (ribbon rewind spindle) rotates back and forth, please check the DC motor driver IC, make sure it is firmly inserted in the IC socket and is not burned.

  • Page 38: Mechanism

    TTP-243 Bar Code Printer Service Manua 4. MECHANISM 4.1 Cutter Installation 1. Turn off the printer power. 2. Open the top cover of the printer. 3. Remove the printer front panel slowly and carefully. (Cf. Fig. 3.14) 4. Remove the two screws and the metal cover. (Cf. Fig. 3.15) 5.

  • Page 39: Print Head Replacement

    TTP-243 Bar Code Printer Service Manua 4.2 Print Head Replacement 1. Turn off the printer power. 2. Remove the RS-232 cable and power cord. 3. Open the top cover. 4. Remove the ribbon and label roll. 5. Open the print carriage. 6.
  • Page 40 TTP-243 Bar Code Printer Service Manua Note: The key of connector must be positioned upward. Do not touch the elements of the print head. Do not disassemble the print head. 8. Tidy up the cable so that it does not protrude or interfere with the ribbon. 9.

  • Page 41: Dc Motor Replacement

    TTP-243 Bar Code Printer Service Manua 4.3 DC Motor Replacement 1. Turn off the printer power. 2. Remove the power cord and RS-232 and/or parallel port cable. 3. Open the top cover of the printer. 4. Remove the printer front panel. (Cf. Fig. 3.14) 5.

  • Page 42: Ribbon Rewind Spindle Encoder Replacement

    TTP-243 Bar Code Printer Service Manua 4.4 Ribbon Rewind Spindle Encoder Replacement The encoder is installed on the gear box of DC motor, and is used to detect if the ribbon is unerringly rewound by the spindle. The encoder is connected to JP6 on the mainboard.

  • Page 43: Felt Fabric Replacement

    TTP-243 Bar Code Printer Service Manua 4.5 Felt Fabric Replacement Felt Fabric is located in the ribbon supply spindle. It is used to tighten the ribbon to prevent it from getting wrinkled during printing. If the ribbon can not be tightened when label back feeds during printing, please replace with a new felt to secure the best printing quality.
  • Page 44 TTP-243 Bar Code Printer Service Manua 6. Reassemble the removed parts in the reverse order of removal. Fig. 4.8 Front View of the Ribbon Supply Spindle...

  • Page 45: Stepping Motor Replacement

    TTP-243 Bar Code Printer Service Manua 4.6 Stepping Motor Replacement 1. Turn off the printer power. 2. Remove the power cord and RS-232 and/or Parallel port cable. 3. Open the top cover of the printer. 4. Remove the printer front panel. (Cf. Fig. 3.14) 5.

  • Page 46: Black Mark Sensor / Gap Sensor (Receiver) Replacement

    TTP-243 Bar Code Printer Service Manua 4.7 Black Mark Sensor / Gap Sensor (Receiver) Replacement Black mark sensor is reflection type sensor. It is connected to JP4 (3 pin connector). A multi-meter is used to measure the signal of Pin2 to see if there is voltage variation when black mark is detected.

  • Page 47: Ribbon Sensor (Receiver) Replacement

    TTP-243 Bar Code Printer Service Manua 4.8 Ribbon Sensor (Receiver) Replacement 1. Turn off the printer power. 2. Remove the power cord and RS-232 and/or parallel port cable. 3. Open the top cover of the printer. 4. Remove the printer front panel. (Cf. Fig. 3.14) 5.
  • Page 48 TTP-243 Bar Code Printer Service Manua Fig. 4.12 Ribbon Sensor Fig. 4.13 Spring Installation on Left Side and Right Side Note: The left side spring and the right side spring are different in shape. The right side spring has a straight end, when the left side spring has an end that is curved 90 degrees.

  • Page 49: Ribbon Sensor (Transmitter) / Gap Sensor (Transmitter) Replacement

    TTP-243 Bar Code Printer Service Manua 4.9 Ribbon Sensor (Transmitter) / Gap Sensor (Transmitter) Replacement 1. Please follow the steps in Section 4.6 to separate the upper mechanism from the lower mechanism. 2. The ribbon sensor (transmitter) is located in the center of the lower mechanism. Fig.

  • Page 50: Platen Replacement

    TTP-243 Bar Code Printer Service Manua 4.10 Platen Replacement 1. Turn off the printer power. 2. Remove the power cord and RS-232 and/or parallel port cable. 3. Open the top cover of the printer. 4. Remove the printer front panel. (Cf. Fig. 3.4) 5.
  • Page 51 TTP-243 Bar Code Printer Service Manua Bracket Thermal Head Printer Carriage Release Lever E Ring Fig. 4.16 Printer carriage release lever and E ring Stripper Bar Platen Bush Printer Carriage (Right Side) Release Lever Teflon Tube E Ring Fig. 4.17 Printer carriage release lever arm and E ring 19.
  • Page 52 TTP-243 Bar Code Printer Service Manua Teflon Tube Fig. 4.18 Teflon tube and stripper rod Platen Bush (Left Side) E Ring Fig. 4.19 Remove E ring and platen bush 22. Move the platen to the right of the mechanism. 23. Replace the platen and reassemble the removed parts in the reverse order of removal.

  • Page 53: Parts List

    TTP-243 Bar Code Printer Service Manua 4.11 Parts List TTP/TDP-243 SPARE PARTS LIST TTP-243 Last Update: 2003/2/18 Cover and Panels Ref. Part No. Description Remarks List Price Screw, φ3x8 37-1403008-34 30-0180020-00 Memory Module Cover 98-0180006-00 Push Button Box Ass’y 99-0181001-00 1M Flash ROM installed with one of the following 5 fonts: Option...
  • Page 54 TTP-243 Bar Code Printer Service Manua TTP-243 Last Update: 2003/2/18...
  • Page 55 TTP-243 Bar Code Printer Service Manua Ribbon Mechanism Assembly TTP-243 Last Update: 2003/2/18 Ref. Part No. Description Remarks List Price 98-0130019-10 Ribbon Spindle Ass’y 98-0180009-10 Ribbon Mechanism Ass’y Screw, φ3x5 Tap4 Round + Black 37-1403005-32 Screw, φ3x8 37-1403008-34 Screw, φ3.5x10Tap2Round+ Yellow 37-1203510-31 30-0180053-00 Ribbon Base Side Cover...
  • Page 56 TTP-243 Bar Code Printer Service Manua TTP-243 Last Update: 2003/2/18...
  • Page 57 TTP-243 Bar Code Printer Service Manua Mechanism Upper Cover Assembly TTP-243 Last Update: 2003/2/18 Ref. Part No. Description Remarks List Price 98-0180030-10 Mechanism Upper Cover Ass’y Screw, φ3x8 37-1403008-34 Screw, φ2.6x12 Tap4 37-1202612-22 37-1503006-34 Screw, M3x6 Round + Ni Screw, φ3x15 Tap4 Round + Ni 37-1403015-32 37-1403508-52 Screw, φ3.5x8...
  • Page 58 TTP-243 Bar Code Printer Service Manua TTP-243 Last Update: 2003/2/18...
  • Page 59 TTP-243 Bar Code Printer Service Manua TTP-243 Last Update: 2003/2/18 Mechanism Lower Cover Assembly Ref. Part No. Description Remarks List Price 98-0180055-00 Mechanism Lower Cover Ass’y (Gap Sensor Right Offset 4mm from the center) 98-0180139-00 Mechanism Lower Cover Ass’y (Gap Sensor in the center) 98-0180043-00 PCB-D Ass’y (Gap / Ribbon Tx...
  • Page 60 TTP-243 Bar Code Printer Service Manua TTP-243 Last Update: 2003/2/18...
  • Page 61 TTP-243 Bar Code Printer Service Manua Accessories TTP-243 Last Update: 2003/2/18 Ref. Part No. Description Remarks List Price 72-0010001-00 Parallel Port Cable 98-0180001-10 External Label Roll Mount Ass’y 62-0130003-00 Power Adapter...
  • Page 62 TTP-243 Bar Code Printer Service Manua TTP-243 Last Update: 2003/2/18...

  • Page 63: Trouble Shooting

    TTP-243 Bar Code Printer Service Manua 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 DIP switch and reset the printer. Out of Range: Numeric input is too large to be processed.

  • Page 64: Trouble Shooting

    TTP-243 Bar Code Printer Service Manua 5.2 Trouble Shooting Problems Solutions 1. Ribbon does not advance. Check the printing mode setting and reset the printer. 2. Poor print quality. Clean the print head. Adjust the print density setting. 3. Only prints diagonal pattern in the self-test. Ribbon and paper are incompatible.

  • Page 65: Calibrate The Gap Register

    TTP-243 Bar Code Printer Service Manua 5.3 Calibrate the Gap Register Install the label. Turn on the printer power while pressing the PAUSE button. The printer will calibrate the transparency of the backing paper and adjust the gap register. 5.4 Self-test Install the label.

  • Page 66: Testing Sensors

    TTP-243 Bar Code Printer Service Manua 5.7 Testing Sensors A. Checking Ribbon Sensor Switch the multimeter to the DC gear. Connect the black wire to DC GND, and the red wire to PIN2 of JP2. 1. When ribbon is detected between TX and RX of the ribbon sensor, the measured voltage should be 5 Vdc.
  • Page 67 TTP-243 Bar Code Printer Service Manua D. Checking Black Line Sensor Switch the multimeter to the DC gear. Connect the black wire to DC GND, and the red wire to PIN2 of JP4. Load black line label on the printer. 1.

  • Page 68: Cleaning The Print Head

    TTP-243 Bar Code Printer Service Manua 5.8 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. Turn the power off 2.
  • Page 69 TAIWAN SEMICONDUCTOR CO., LTD. 11F, No. 205, Sec. 3, Beishin Rd., Shindian City, Taipei,Taiwan R.O.C. TEL: +886-2-8913-1588 E-mail: printer@mail2.ts.com.tw FAX: +886-2-8913-1808 Web Site: http://www.tscprinters.com...

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