TTP-244 Plus THERMAL TRANSFER BAR CODE PRINTER Service Manual TTP/TDP 244/342
TTP-244 Plus Bar Code Printer Service Manual Table of Contents 1. FUNDAMENTALS ABOUT THE SYSTEM .................................................................. 1 1.1 Features of the TTP/TDP-244 Plus ............................................................................ 1 1.2 Model Naming Syntax............................................................................................ 1 1.3 Overview ...............................................................................................
TTP-244 Plus Bar Code Printer Service Manual 4.10 Platen Replacement ............................................................................................... 31 5. TROUBLE SHOOTING ................................................................................................... 33 5.1 Trouble Shooting ...................................................................................................... 33 5.2 Calibrate the Gap Register ..............................................................
TTP-244 Plus Bar Code Printer Service Manual 1. FUNDAMENTALS ABOUT THE SYSTEM 1.1 Features of the TTP/TDP-244 Plus 1. TTP-244 Plus bar code printer prints bar codes, characters, logos, on various types of labels and tickets by direct thermal or thermal transfer printing. 2 TTP-244 Plus adopts a “BASIC-like” high level programming language to help users programme the desired label forms with ease. 3.
TTP-244 Plus Bar Code Printer Service Manual 1.3 Overview 1.3.1 Front View PAUSE Button PWR., ON-LINE and ERR.
TTP-244 Plus Bar Code Printer Service Manual 1.3.
TTP-244 Plus Bar Code Printer Service Manual 1.4 Basic Specifications Thermal transfer and direct thermal printing High dot density printing (203 dots/inch) Selectable print speeds at 2.0”, 3.0” or 4.0” per second Supports RS-232 and USB interface Maximum media width up to 4.49” (114 mm) Adjustable label edge guide International character sets Print area is 4.
TTP-244 Plus Bar Code Printer Service Manual RS-232 Interface Pin Configuration: Host Function 9 Pin 25 Pin 9 Pin 1 RxD TxD DTR GND DSR RTS CTS 2 3 4 5 6 7 8 3 2 2 20 7 6 4 5 3 4 5 6 7 8 9 1.5 Effective Print Area Label/Ticket Length Effective Print Length Label/Ticket Width Effective Print Width No Print Area 1.
TTP-244 Plus Bar Code Printer Service Manual Codabar Interleaved 2 of 5 EAN-8, EAN-13, EAN-128 UPC-A, UPC-E EAN and UPC with 2 or 5 digits add-on MSI Postnet Plessey China POST 2D bar codes: Maxicode DataMatrix PDF-417 QR code 1.7 Various Sensors 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.
TTP-244 Plus Bar Code Printer Service Manual 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. Once the sensor position is agreed upon, it can not be changed afterwards. Ribbon End Sensor The sensor detects the end portion of the ribbon. The ribbon end must be transparent. Label End Sensor The sensor detects the end portion of the label.
TTP-244 Plus Bar Code Printer Service Manual 2. SUPPLY SPECIFICATIONS 2.1 Types of Paper Two types of media are available for TTP-244 Plus: label and ticket. In TTP-244 Plus, 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. 2.2 Specifications Items Label Max.114mm Min. 25.4mm Length (Pitch) 10～1016mm Paper 0.25 mm Thickness Paper Weight Max 240 g/m2 Max. Roll Inner roll diameter.
TTP-244 Plus Bar Code Printer Service Manual 9
TTP-244 Plus Bar Code Printer Service Manual 2.3 Ribbon Sizes and Shapes Item Ribbon shape Ribbon width Ribbon winding width Leading tape End tape Max. ribbon OD. Winding method Specifications Spool type Max. 110mm Min. 40mm Max. 110mm Min. 40mm Polyester film, 3355mm long Polyester film (transparent), 2505mm long 67mm Ink surface to be wound outside Note: The maximum length of ribbon depends on its thickness and core outside diameter.
TTP-244 Plus Bar Code Printer Service Manual 3. ELECTRONICS 3.1 Summary of Board Connectors Main board 1 2 3 4 5 6 7 8 14 9 11 10 Connector 1 2 12 Description 13 Remark Ribbon sensor connector JP18 Black mark sensor connector JP46 Pin 1 2 3 Description Power Black mark sensor receiver GND 11 Voltage 5V No paper or black mark : 3.1~3.2V Detect paper: 0~0.
TTP-244 Plus Bar Code Printer Service Manual Gap sensor connector 3 4 5 6 7 8 9 10 11 12 13 JP53 Pin 1 Description GND 2 Gap sensor emitter 3 4 Power GND 5 Gap sensor receiver 6 Power Voltage 0V Emitter on : 0.7~1.8V Emitter off: 2.4~2.7V 5V 0V No paper or gap: 3.1~3.2V Detect paper: 0~0.
TTP-244 Plus Bar Code Printer Service Manual 3.2 Pin Configuration RS-232C PIN 1 2 3 4 5 6 7 8 9 CONFIGURATION +5 V TXD RXD CTS GND RTS N/C RTS N/C USB PIN 1 2 3 4 CONFIGURATION N/C DD+ GND Centronics Pin SPP Mode Nibble In/Out 1 Strobe N/A In 2-9 Data 0-7 N/A In 10 Ack N/A Out 11 Busy N/A Out N/A Out When low, device acknowledges reverse request.
TTP-244 Plus Bar Code Printer Service Manual 32 Error / Fault N/A Out 33-35 36 Ground No Defined N/A N/A GND N/A 14 A low set by the device indicates that the reverse data is available Ground
TTP-244 Plus Bar Code Printer Service Manual 4. MECHANISM 4.1 Mainboard Replacement 1. Turn off the printer power. 2. Remove the power cord and RS-232 and/or USB port cable. 3. Open the top cover of the printer. 4. Remove the four screws of the internal label roll mount. Remove screws of the label roll mount 5. Move the mechanism about 5 mm in the label feed direction. 6. Take out the internal label roll mount.
TTP-244 Plus Bar Code Printer Service Manual 7. Remove all connectors on the main board. JP52 JP42 JP37 Ground Wire JP14 JP53 Remark JP52 JP37 JP14 JP53 JP46 JP18 JP42 JP46 JP18 Description Push button connector Ribbon encoder sensor & DC motor connector Stepping motor connector Gap sensor connector BLine sensor connector Ribbon sensor connector Print head connector 8. Remove the screw of ground wire on the main board. 9. Remove the rest three screws on the mainboard. 10. Replace the mainboard. 11.
TTP-244 Plus Bar Code Printer Service Manual 4.2 DC Motor Replacement 1. Turn off the printer power. 2. Remove the power cord and RS-232 and/or USB port cable. 3. Open the top cover of the printer. 4. Remove the printer front panel. 5. Remove the screws in the lower left, lower right corners of the main mechanism. Screws 6. Remove all four screws of the internal label roll mount.
TTP-244 Plus Bar Code Printer Service Manual 7. Move the mechanism in the label feed direction about 5 mm. 8. Take out the internal label roll mount and remove connectors as below. 9. Remove the screw of ground wire on the mainboard. JP42 JP37 Ground Wire JP14 JP53 JP46 10. Take out the mechanism.
TTP-244 Plus Bar Code Printer Service Manual 11. Remove the one screw. Screw 12. Remove the three screws on DC motor fixture. DC Motor fixture Screws 13. Remove the three screws used to fix DC motor on the fixture and remove the cable tie.
TTP-244 Plus Bar Code Printer Service Manual Cable tie Screws 14. Replace the DC motor and pull out the cables in connector JP 37. Note: The colors of DC motor wires in connector JP 37 are yellow (outside) and green (inside). 15. Reassemble the removed parts in the reverse order of the removal.
TTP-244 Plus Bar Code Printer Service Manual 4.3 Print Head Replacement 1. Follow the instructions in Section 4.2 to take out the mechanism. 2. Open the print carriage. 3. Remove the screws, springs and spring bushing on both sides of the mechanism. Spring bushing Screws Spring 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. 4.
TTP-244 Plus Bar Code Printer Service Manual Screws 8. Resplace the print head. 9. Reassemble the removed parts in the reverse order of removal. Note: 1. Tidy up the cable so that it does not protrude or interfere with the ribbon. 2. Do not touch the elements of the print head. 3. Do not disassemble the print head.
TTP-244 Plus Bar Code Printer Service Manual 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. Please switch the printer to thermal transfer mode. The multi-meter is used to measure the voltage of Pin2 (+5V). If the voltage changes continuously from 0 to 5 volts DC, the encoder is in condition.
TTP-244 Plus Bar Code Printer Service Manual 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. Follow the steps below to replace the felt fabric. 1. Follow the instructions in Section 4.2 to remove DC motor and DC motor fixture. 2.
TTP-244 Plus Bar Code Printer Service Manual 6. Reassemble the removed parts in the reverse order of removal.
TTP-244 Plus Bar Code Printer Service Manual 4.6 Stepping Motor Replacement 1. Follow the instructions in Section 4.2 to take out the mechanism. 2. Remove the two screws on stepping motor fixture. Screws 3. Replace the stepping motor and reassemble the removed parts in the reverse order of removal.
TTP-244 Plus Bar Code Printer Service Manual 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. Before conducting the test, please issue the BLINE command first. The printer will switch from gap sensor to black mark sensor.
TTP-244 Plus Bar Code Printer Service Manual 4.8 Ribbon Sensor (Receiver) Replacement 1. Follow the instructions in Section 4.2 to take out the mechanism. 2. Open the print carriage. 3. Remove the screws, springs and spring bushing on both sides of the mechanism. Spring bushing Screws Spring 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. 4.
TTP-244 Plus Bar Code Printer Service Manual Sensor Cover Flat Tap Screw 6. Replace with a new ribbon sensor PCB. Ribbon sensor PCB 7. Reassemble the removed parts in the reverse order of removal.
TTP-244 Plus Bar Code Printer Service Manual 4.9 Ribbon Sensor (Transmitter) / Gap Sensor (Transmitter) Replacement 1. Please follow the steps in Section 4.8 to separate the upper mechanism from the lower mechanism. 2. The ribbon sensor (transmitter) is located in the center of the lower mechanism. Ribbon sensor (transmitter) PCB 3. Remove the two flat tap screws Screws 4. Remove the cable tie and sensor PCB. 5. Replace with a new PCB. Reassemble the removed parts in the reverse order of removal.
TTP-244 Plus Bar Code Printer Service Manual 4.10 Platen Replacement 1. Follow the instructions in Section 4.6 to remove the stepping motor fixture and stepping motor. 2. Remove the E-ring and two gears. 3. Remove the E ring and the printer carriage release lever arm. Thermal Head Gear #1 Printer Carriage Release lever arm Gear #2 E-ring 4. Remove the E-ring and the printer carriage release lever on the left side of the mechanism.
TTP-244 Plus Bar Code Printer Service Manual 5. Remove the teflon tube and stripper rod. Teflon Tube 6. Remove the E ring, the right side and left side platen bushes. Platen E-ring Platen bush (Left side) 7. Move the platen to the right of the mechanism. 8. Replace the platen and reassemble the removed parts in the reverse order of removal.
TTP-244 Plus Bar Code Printer Service Manual 5. TROUBLE SHOOTING 5.1 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. Use a different type of ribbon. 4. Power indicator light does not illuminate. Check the connection of serial port cable. 5.
TTP-244 Plus Bar Code Printer Service Manual 5.2 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. 5.3 Self-test Install the label. Turn on the printer power while pressing the FEED button, the printer will: Print head checking pattern. Calibrate the label length. Print internal settings. Initiate self-test. Enter dump mode. 5.
TTP-244 Plus Bar Code Printer Service Manual 5.6 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 JP18. 1. When ribbon is detected between TX and RX of the ribbon sensor, the measured voltage should be 5 Vdc. 2. When ribbon is not detected between TX and RX of the ribbon sensor, the measured voltage should be 0 Vdc. The ribbon sensor is normal if the checking complies with the two cases above.
TTP-244 Plus Bar Code Printer Service Manual UPDATE HISTORY Date 2009/10/6 2011/1/25 2011/4/7 Content Modify section 3.1 Modify TSC address Modify section 3.
TSC Auto ID Technology Co., Ltd. Corporate Headquarters 9F., No.95, Minquan Rd., Xindian Dist., New Taipei City 23141, Taiwan (R.O.C.) TEL: +886-2-2218-6789 FAX: +886-2-2218-5678 Web site: www.tscprinters.com E-mail: printer_sales@tscprinters.com tech_support@tscprinters.com Li Ze Plant No.35, Sec. 2, Ligong 1st Rd., Wujie Township, Yilan County 26841, Taiwan (R.O.C.
