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Toshiba B-SX6T SERIES Maintenance Manual

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TOSHIBA Thermal Printer
B-SX6T/SX8T SERIES
Maintenance Manual
Document No. EO18-33017
Original
Mar., 2006
(Revised
)
PRINTED IN JAPAN

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  Summary of Contents for Toshiba B-SX6T SERIES

  • Page 1 TOSHIBA Thermal Printer B-SX6T/SX8T SERIES Maintenance Manual Document No. EO18-33017 Original Mar., 2006 (Revised PRINTED IN JAPAN...
  • Page 2: Table Of Contents

    3.1.1 Replacing the Cutter Arm and Clutch -----------------------------------------------------------------3- 2 TROUBLESHOOTING ------------------------------------------------------------------------------------------- 4- 1 CAUTION! 1. This manual may not be copied in whole or in part without prior written permission of TOSHIBA TEC. 2. The contents of this manual may be changed without notification.
  • Page 3: Unpacking

    1. UNPACKING EO18-33017 1.1 Procedure 1. UNPACKING 1.1 Procedure 1. Open the carton. 2. Take out the accessories from the carton. 3. Take out the side pads (L) and (R ) and the printer from the carton. 4. Place the printer on a level surface. Start-up CD-ROM Supply Loading Instruction Holder Shaft...
  • Page 4: Checks

    1. UNPACKING EO18-33017 1.2 Checks 5. Remove the tapes from the printer. Checks 1. Check for damage or scratches on the printer. 2. Confirm that none of the accessories are missing. The parts below are provided as accessories. NOTE: Keep the carton and pads for later transport. 1- 2...
  • Page 5: Main Unit Replacement

    2. MAIN UNIT REPLACEMENT EO18-33017 2. MAIN UNIT REPLACEMENT 2. MAIN UNIT REPLACEMENT WARNING! Turn the power off and disconnect the power cord before replacing the main parts. CAUTION! 1. DO NOT separate the ribbon motors from the attachment plate (bracket), as doing so will change their adjustment.
  • Page 6: Replacing The Main Pc Board

    2. MAIN UNIT REPLACEMENT EO18-33017 2.1 Replacing the MAIN PC Board 2.1 Replacing the MAIN PC Board CAUTION! Replace only with the same type and rated fuse for continued protection against risk of fire. 1. Disconnect the all connectors from the MAIN PC Board. MAIN PC Board 2.
  • Page 7: Replacing The Ps Unit

    3.MAIN UNIT REPLACEMENT EO18-33017 2.2 Replacing the PS Unit 2.2 Replacing the PS Unit 1. Disconnect the reactor cable from the Reactor and remove it from the cable clamp. Cable Clamp Reactor PS Unit Reactor Cable 2. Remove the two FL-4x6 screws to detach the PS Unit. Pushing the AC power inlet from behind will ease the removal of the PS Unit.
  • Page 8 3.MAIN UNIT REPLACEMENT EO18-33017 2.2 Replacing the PS Unit 2. Disconnect the PS Cable from CN1 connector of the PS Unit. PS Cable PS Cable CN1 connector PS Unit 3. Replace the PS Unit with a new one, and reassemble in the reverse order of removal. When reassembling, place the PS Cable into Notch (A) and Notch (B).
  • Page 9: Replacing The Stepping Motor

    3.MAIN UNIT REPLACEMENT EO18-33017 2.3 Replacing the Stepping Motor 2.3 Replacing the Stepping Motor 1. Remove the four FL-4x6 screws to detach the Front Plate. FL-4x6 Screw FL-4x6 Screw Front Plate FL-4x6 Screw 2. Disconnect the cable from CN500 on the MAIN PC Board. 3.
  • Page 10 3.MAIN UNIT REPLACEMENT EO18-33017 2.3 Replacing the Stepping Motor (2) Temporarily attach the Stepping Motor, by tightening the two screws, in order of A and B. cm ±2.94N (3) Using a tension gauge, press down the Stepping Motor with 34.3N •...
  • Page 11: Replacing The Ribbon Motors

    3.MAIN UNIT REPLACEMENT EO18-33017 2.4 Replacing the Ribbon Motors 2.4 Replacing the Ribbon Motors CAUTION! DO NOT separate the Ribbon Motor from the Attachment Plate, as doing so will change their adjustment. 1. Disconnect the connectors and remove the two SMW-3x5 Screws to detach the Ribbon Motors. Ribbon Motor Attachment Plate FLOIL G-488 Connector (White)
  • Page 12: Replacing The Print Head

    3.MAIN UNIT REPLACEMENT EO18-33017 2.5 Replacing the Print Head 2.5 Replacing the Print Head CAUTION! 1. DO NOT touch the thermal element when handling the Print Head. 2. DO NOT touch the connector pins to avoid damage to the Print Head by static electricity. 3.
  • Page 13: Replacing The Solenoid (Standard On The B-Sx8T, Option For The B-Sx6T)

    3.MAIN UNIT REPLACEMENT EO18-33017 2.6 Replacing the Solenoid (Standard on the B-SX8T, Option for the B-SX6T) 2.6 Replacing the Solenoid (Standard on the B-SX8T, Option for the B-SX6T) NOTE: The following procedure can be done without removing the Left Side Cover. 1.
  • Page 14 3.MAIN UNIT REPLACEMENT EO18-33017 2.6 Replacing the Solenoid (Standard on the B-SX8T, Option for the B-SX6T) CAUTION! Orient the screws so that they are vertically aligned with the Solenoid Attachment Plate. 6. Remove the Head Cover Plate. (Refer to Section 2.5.) 7.
  • Page 15: Replacing The Platen

    3.MAIN UNIT REPLACEMENT EO18-33017 2.7 Replacing the Platen 2.7 Replacing the Platen 1. Remove the Front Plate. (See Section 2.3.) 2. Loosen the two SMW-4x10 screws securing the Stepping Motor. 3. Remove the FL-4x6 screw to detach the Platen Positioning Plate. 4.
  • Page 16: Replacing The Roller Belt And Feed Roller

    3.MAIN UNIT REPLACEMENT EO18-33017 2.8 Replacing the Roller Belt and Feed Roller 2.8 Replacing the Roller Belt and Feed Roller 1. Lower the Pinch Roller Lever. 2. Remove the Plastic Head Screw to detach the Ribbon End Sensor Plate. 3. Remove the FL-3x5 screw, cut the Cable Band, and remove the Head-up Switch. 4.
  • Page 17 3.MAIN UNIT REPLACEMENT EO18-33017 2.8 Replacing the Roller Belt and Feed Roller Remove the two FL-4x6 screws and detach the Media Plate. Remove the two FL-4x6 screws and detach the Media Guide Unit. Loosen the two SMW-4x10 screws securing the Stepping Motor. 10.
  • Page 18: Replacing The Media Sensor

    3.MAIN UNIT REPLACEMENT EO18-33017 2.9 Replacing the Media Sensor 2.9 Replacing the Media Sensor CAUTION! 1. When using the Fixed Sensor, line up the Feed Gap Sensors between the Upper and Lower sensors. 2. When shipped from the factory, the Black Mark Sensor is positioned at the center of the effective print area and the Feed Gap Sensor is located 10 mm left of the center, as viewed from the front.
  • Page 19: Periodic Maintenance Procedure

    3.MAIN UNIT REPLACEMENT EO18-33017 2.10 Periodic Maintenance Procedure 2.10 Periodic Maintenance Procedure All machines are generally delivered in their best condition. To maintain optimal operating condition and help gain maximum performance and life of machines, we would recommend you to conduct periodic maintenance.
  • Page 20 Confirm each part adjustment. Make any necessary adjustments. Conduct the following tests and make sure that there is no problem. 1) Print test with TOSHIBA TEC specified media and ribbon (Print tone, print head position, etc.) 2) Paper skew 3) Print start position adjustment (Horizontal: Media position, Vertical: Sensor adjustment/Adjustment...
  • Page 21: Mechanism Description

    3. MECHANISM DESCRIPTION EO18-33017 3.1 Cutter Drive 3. MECHANISM DESCRIPTION 3.1 Cutter Drive The printer supplies DC +27V to the Cutter Motor to rotate it and the clutch counter clockwise. The arm swings like a pendulum and moves the swing cutter up and down to make a cut. Micro Switch Fixed Cutter Swing Cutter...
  • Page 22: Replacing The Cutter Arm And Clutch

    3. MECHANISM DESCRIPTION EO18-33017 3.1 Cutter Drive 3.1.1 Replacing the Cutter Arm and Clutch If a moving portion of the arm or the clutch is distorted by wear, purchase the Arm and Clutch Kit from TEC Parts Dept. and replace them. Doing so will prolong the cutter life. NOTES: 1.
  • Page 23: Troubleshooting

    3. Replace the MAIN PC board. Poor print quality 1. The print paper is of poor quality. 1. Use the media approved by TOSHIBA TEC. 2. Dirty print head. 2. Clean the print head. 3. The head lever fastens the print head 3.
  • Page 24 1. Paper is not set properly. 1. Set the paper properly. 2. Paper of poor quality 2. Use paper approved by TOSHIBA TEC. 3. Improper adjustment of the feed gap 3. Re-adjust the sensor. sensor or black mark sensor. 4. Threshold is improper.

This manual is also suitable for:

B-sx8t series