TOSHIBA Thermal Printer B-SA4T SERIES Maintenance Manual Document No. EO18-33016A Original Jul., 2005 (Revised Sep.
EO18-33016A TABLE OF CONTENTS Page 1. UNPACKING-------------------------------------------------------------------------------------------------------- 1- 1 1.1 1.2 Procedure ---------------------------------------------------------------------------------------------------- 1- 1 Checks -------------------------------------------------------------------------------------------------------- 1- 2 2.
1. UNPACKING EO18-33016A 1.1 Procedure 1. UNPACKING 1.1 Procedure 1. Open the carton. 2. Take out the accessories and the top pad from the carton. 3. Take out the printer from the carton. Accessories Top Pad Carton Printer 4. Remove the tapes from the printer.
1. UNPACKING EO18-33016A 1.2 Checks 1.2 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. Printer Rear Support CD-ROM Cable Clamp SMW-3x8 Screw SMW-4x8 Screw (B-SA4TM only) Supply Loading Instructions (Doc. No. EO2-33015 for B-SA4TM) (Doc. No. EO2-33017 for B-SA4TP) Safety Precautions (Doc. No.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.1 PS Unit 3. MAIN UNIT REPLACEMENT WARNING! Turn the power off and disconnect the power cord before replacing the main parts. 3.1 PS Unit 1. Remove the screw from the back of the printer, and draw out the PS Unit halfway. NOTE: If the PS Unit cannot be drawn out smoothly, check whether it gets stuck with the harnesses on both sides. P-3x6 Screw PS Unit 2. Unlock the connectors of the cables connected to CN1 and CN2 on the PS PC Board, and disconnect the cables.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.1 PS Unit 4. Remove the screw to release the Ground Wire of the Inlet Ass’y. Inlet Ass’y Ground Wire SMW-4x8 Screw 5. Draw out the PS PC Board Unit from the printer. PS PC Board Unit 6. Remove the three screws to separate the PS PC Board from the frame. SMW-3x6 Screw SMW-3x6 Screw 7. Replace the PS PC Board with a new one, and then reassemble in the reverse order of removal. NOTES: 1.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.2 MAIN PC Board Ass’y 3.2 MAIN PC Board Ass’y 1. Remove the two screws from the back of the printer. SMW-3x6 Screw SMW-3x8* Screw [B-SA4TM] [B-SA4TP] 2. Only for the B-SA4TM model, open the Front Cover, and remove the two screws that secure the Front Cover. Front Cover SMW-3x6 Screw 3. Close the Front Cover. 4. Slightly open the Top Cover, and remove the Side Panel. Top Cover Side Panel Top Cover Side Panel Hook [B-SA4TM] [B-SA4TP] 5.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.2 MAIN PC Board Ass’y 6. 7. Remove the screw to detach the Cable Clamp fixing the Print Head Cable (white). Disconnect the all cables from the MAIN PC Board ass’y. NOTE: Be careful that the connector of the Power Cable has a connector lock. Cable Clamp Print Head Cable (White) SMW-3x8 Screw Power Cable Connector Lock 8. To easily remove the MAIN PC board from the B-SA4TM model, remove the cable protection cover by squeezing and raising it.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.2 MAIN PC Board Ass’y 11. Replace the MAIN PC board with a new one, and reassemble in the reverse order of removal.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.2 MAIN PC Board Ass’y NOTES: 1. When re-attaching the Side Panel, be careful not to pinch the lead wires between the printer frames and the Side Panel. Be careful not to pinch the lead wires by the Side Panel. 2. After installing the MAIN PC board, place the cables and harnesses as shown below, and bind them with cable clamps so as not to touch the stepping motor pulley or timing belt.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.3 Platen 3.3 Platen 1. Open the Top Cover. 2. Push both Platen Holders inside to release the hooks, and lift the Platen Ass’y. Platen Holder Platen Holder Platen Ass’y NOTES: 1. Do not disassemble the Platen Ass’y further as a Platen Ass’y is a minimum unit. 2. Be careful that the metal plate easily comes off. If it does, fit it as the following picture shows. Metal Plate 3.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.4 Stepping Motor and Top Cover Open Sensor (Left) 3.4 Stepping Motor and Top Cover Open Sensor (Left) 1. Remove the Side Panel from the printer. (Refer to Section 3.2.) 2. Remove the Platen Ass’y. (Refer to Section 3.3.) 3. Open the Top Cover and remove the screw which secures the Stepping Motor Frame. SMW-3x6 Screw 4. Remove the screw to detach the Platen Gear Frame. Platen Gear Frame SMW-3x6 Screw 5.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.4 Stepping Motor and Top Cover Open Sensor (Left) 7. If necessary, remove the Top Cover Open Sensor (Left) by releasing the two hooks. Top Cover Open Sensor (Left) 8. Loosen the Motor Frame Locating Screw, on the upper left of the printer front. Motor Frame Locating Screw Do not remove, just loosen! 9. Disconnect the Stepping Motor cable from CN500 on the MAIN PC Board. 10. Release the Stepping Motor Cable from the Cable Clamp.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.4 Stepping Motor and Top Cover Open Sensor (Left) 12. Release the bunch of ground wires from the Cable Clamp. 13. Remove the screw to release the Ground Wire (red). 14. Remove the two PT-4x12 screws and one SMW-4x8 screw to detach the Stepping Motor Unit. NOTE: The SMW-4x8 screw secures the ground wire (green) together. Bunch of Ground Wires SMW-3x6 Screw Cable Clamp PT-4x12 Screw Ground Wire (Red) SMW-4x8 Screw Ground Wire (Green) 15.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.5 Ribbon Motor/Ribbon Sensor 3.5 Ribbon Motor/Ribbon Sensor 1. Open the Top Cover. 2. Only for the B-SA4TM model, remove the lower two screws first. (These screws are not provided on the B-SA4TP model.) 3. Holding the Top Cover so as not to drop it, remove the upper two screws. PT-4x12 Screw Top Cover Top Cover First, remove these SMW-4x8 screws. Second, remove these PT-4x12 screws. Hook Hook [B-SA4TM] [B-SA4TP] 4.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.5 Ribbon Motor/Ribbon Sensor When removing the Ribbon Motor or the Ribbon Sensor only, step 6 to step 12 can be omitted. It can be removed by just disconnecting each cable and removing the screw. 6. Disconnect the Ribbon Motor Connectors and Ribbon Sensor Harness. 7. Remove the two screws to release the ground wires (brown and black).
3.MAIN UNIT REPLACEMENT EO18-33016A 3.5 Ribbon Motor/Ribbon Sensor 10. Remove the screws to detach the Ribbon Motors. Ribbon Motor Ribbon Motor SMW-3x6 Screw SMW-3x6 Screw 11. Remove the screws to detach the Ribbon Sensors. SMW-3x6 Screw Ribbon Sensor Ribbon Sensor 12. Remove the Sensor PC Board by releasing the hooks.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.5 Ribbon Motor/Ribbon Sensor 13. Replace the Ribbon Motor and Ribbon Sensor with new ones, and then reassemble in the reverse order of removal. NOTES: 1. When re-attaching the Ribbon Motor Drive Unit to the upper frame, be careful not to pinch the lead wires. For wiring of the lead wires, refer to the following picture. 2. When re-attaching the Ribbon Motor Drive Unit to the upper frame, make sure that the locating pin touches the left end of the left oval hole.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.6 Fan Motor 3.6 Fan Motor 1. Remove the Side Panel from the printer. (Refer to Section 3.2.) 2. Disconnect the Fan Motor Cable from CN10 on the MAIN PC Board. Fan Motor Cable CN10 3. Remove the Top Cover and place it beside the printer. (Refer to Section 3.5.) 4. Remove the two screws to detach the Fan Motor Plate. Fan Motor Plate PT-3x8 Screw 5. Cut the Cable Band securing the Fan Motor Lead Wires. 6.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.7 Operation Panel (For the B-SA4TM) 3.7 Operation Panel (For the B-SA4TM) 1. Open the Ribbon Cover. Ribbon Cover 2. Remove the four screws to detach the Operation Panel from the Ribbon Cover. Operation Panel Ribbon Cover PT-4x12 Screw NOTE: When removing these screws, use a Phillips-head screw with the length of 100 mm or less. If you do not have such a driver, remove the Top Cover in advance. (Refer to Section 3.5.) 3.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.7 Operation Panel (For the B-SA4TM) 5. Disconnect the cable which connects the Panel PC board to the LCD PC board. CN2 LCD PC Board Panel PC Board 6. Remove the two screws to detach the LCD PC board. LCD PC Board PT-3x8 Screw 7. Replace the Operation Panel with a new one, and then reassemble in the reverse order of removal. NOTE: For wiring of the cables, refer to the following picture.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.8 Operation Panel (For the B-SA4TP) 3.8 Operation Panel (For the B-SA4TP) 1. Open the Ribbon Cover. Ribbon Cover Ribbon Cover 2. Remove the two screws and release the two hooks to detach the Operation Panel from the Ribbon Cover. FLT-3x12 Screw Hook Hook Operation Panel 3. As shown in the picture below, unhook the Operation Panel Cover. Ribbon Cover Hook Operation Panel 4. Disconnect the Operation Panel Cable from CN1 on the Panel PC Board. 5.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.8 Operation Panel (For the B-SA4TP) 6. Disconnect the cable which connects the Panel PC Board to the LCD PC Board. LCD PC Board Panel PC Board 7. Remove the two screws to detach the LCD PC Board. LCD PC Board PT-3x8 Screw 8. Replace the Operation Panel with a new one, and then reassemble in the reverse order of removal. NOTE: For wiring of the cables, refer to the following picture.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.9 Print Head 3.9 Print Head CAUTION! 1. NEVER loosen or remove the following two screws of the Print Head as they have been fine adjusted before shipment. If they are loosened or removed, print quality may become deteriorated. NEVER loosen or remove these screws. 2. Do not touch the Print Head Element when handling the Print Head. 1. Fully open the Ribbon Cover. 2. Slightly open the Top Cover (10 mm). Ribbon Cover Top Cover 3.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.9 Print Head 4. Disconnect the Print Head Cable from the Print Head. Print Head Cable Print Head 5. Replace the Print Head with a new one, and then reassemble in the reverse order of removal.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.9 Print Head 4. Disconnect the Print Head Cable from the Print Head. Print Head Cable Print Head 5. Replace the Print Head with a new one, and then reassemble in the reverse order of removal.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.10 Media Sensor 3.10 Media Sensor 1. Open the Top Cover. 2. Slightly push the Upper Sensor Lever inside, and open the Upper Sensor Ass’y. Upper Sensor Ass’y Upper Sensor Lever 3. Pushing the tabs on the rear of the Media Sensor Block toward the front of the printer, slightly lift the back of the Media Sensor Block, and remove it toward the printer back. Tab Media Sensor Block 4.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.10 Media Sensor 5. Remove the two E-rings, the Shaft, and the Upper Sensor Ass’y. Upper Sensor Ass’y E-Ring Shaft E-Ring 6. Remove the Upper Sensor Cover (Top) by releasing the four hooks. Hook Upper Sensor Cover (Top) 7. Remove the Upper Sensor PCB Casing by releasing the two hooks. Upper Sensor PCB Casing 8. Separate the Upper Sensor PCB from the Upper Sensor PCB Casing by releasing the two hooks.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.10 Media Sensor 9. Move the Lower Media Sensor toward the center. Failure to do this prevents disassembling the Lower Sensor Ass’y. Lower Media Sensor 10. Remove the Lower Sensor Cover (Top) by releasing the two hooks. Lower Media Cover (Top) 11. Remove the Lower Sensor PCB Casing by releasing the two hooks. Lower Sensor PCB Casing 12. Separate the Lower Sensor PCB from the Lower Sensor PCB Casing by releasing the two hooks.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.10 Media Sensor 13. Replace the Sensor PCB with a new one, and reassemble in the reverse order of removal. NOTES: 1. Before re-connecting the Sensor Harnesses to the Sensor PCBs, be sure to move the upper and lower Media Sensors to the left end. Sensor Harnesses Media Sensor 2. After connecting the Sensor Harnesses and when installing the Media Sensor Block on the printer, be sure to move the upper and lower Media Sensors to the right.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.11 Top Cover Open Sensor (Right) 3.11 Top Cover Open Sensor (Right) 1. Refer to Steps 1 to 7 in Section 3.2 (MAIN PC Board Ass’y) and disconnect the all cables from the MAIN PC Board Ass’y. 2. Push and remove the Blind Plate from the printer back Blind Plate The Blind Plate has an opening so that it can be used as a fanfold paper inlet. When using fanfold paper, attached the Blind Plate upside down. Opening As a blind plate As a fanfold paper inlet 3.
3.MAIN UNIT REPLACEMENT EO18-33016A 3.11 Top Cover Open Sensor (Right) 4. Remove the two screws from the Stepping Motor Unit. SMW-3x6 Screw Stepping Motor Unit SMW-4x8 Screw 5. Loosen the Motor Frame Locating Screw, on the upper left of the printer front. 6. Release the side hooks of the Media Path Frame, and draw it out upward. Media Path Frame Motor Frame Locating Screw Do not remove, just loosen! Side Hook 7. Remove the two screws to detach the Sensor Frame and release the Ground Wire (Red).
3.MAIN UNIT REPLACEMENT EO18-33016A 3.11 Top Cover Open Sensor (Right) 8. Disconnect the Top Cover Open Sensor Harness (Blue). Top Cover Open Sensor Harness (Blue) 9. Remove the Top Cover Open Sensor (Right) from the Sensor Frame.
4. PERIODIC MAINTENANCE PROCEDURE EO18-33016A 4. PERIODIC MAINTENANCE PROCEDURE 4. 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.
4. PERIODIC MAINTENANCE PROCEDURE EO18-33016A 4. PERIODIC MAINTENANCE PROCEDURE 5) When using the cutter unit, clean the cutter blade and the media path. WARNING! When cleaning the cutter, be careful not to be injured by the cutter blade. (1) Open the front cover. (2) Loosen the set screw of the cutter unit to open it. (3) Remove jammed media, if any. Cutter Unit Set Screw Cutter Unit (4) Clean the inside of the cutter blade with a cotton swab moistened with absolute ethyl alcohol.
4. PERIODIC MAINTENANCE PROCEDURE EO18-33016A 4. PERIODIC MAINTENANCE PROCEDURE (5) In the same way, clean the outside of the cutter blade. Outside of the Cutter Blade 6) When using the strip module, clean the backing paper feed rollers, guide roller, strip roller, and media path. 1) Open the front cover holding its right side. Front Cover 2) Press down the release bar to open the strip unit. Release Bar Strip Unit 3) 4) Remove jammed media or backing paper, if any.
4. PERIODIC MAINTENANCE PROCEDURE EO18-33016A 4. PERIODIC MAINTENANCE PROCEDURE 6. Apply FLOIL G-488 to the cutter unit using a soft cloth. CAUTION! 1. Lubrication: During parts replacement 2. Kind of oil: FLOIL G-488: 1kg can (Part No.: 19454906001) 3. Do not spray the inside of the printer with lubricants. Unsuitable oil can damage the mechanism. All machines are generally delivered in their best condition. Efforts should be made to keep them that way.
5. TROUBLESHOOTING EO18-33016A 5. TROUBLESHOOTING 5. TROUBLESHOOTING Situation: Power on time 1. The printer does not turn ON. 2. “EEPROM ERROR” is displayed. 3. “100BASE LAN INITIALIZING…” is displayed and does not disappear. 4. “HEAD OPEN” is displayed. 5. Some printers show “ON LINE” and others show “IN LINE”. 6. Unusual message appears on the LCD after a power is turned on, or it takes time to start. 7. It is not possible to enter the system mode. 8.
5. TROUBLESHOOTING EO18-33016A 5. TROUBLESHOOTING 2. “EEPROM ERROR” is displayed. Possible cause Point to check EEPROM is not installed “EEPROM ERROR” is displayed when the on the MAIN PC board. EEPROM is not installed. The EEPROM contains the parameters required for various operations. Without EEPROM, the parameters cannot be found, resulting in an error. EEPROM is installed in a The EEPROM must be installed in the wrong orientation.
5. TROUBLESHOOTING EO18-33016A 5. TROUBLESHOOTING 7. Printer cannot enter the system mode. Possible cause Check point The [FEED] and To enter the system mode, turn on the [PAUSE] keys are power while holding down the [FEED] and released before entering [PAUSE] keys at the same time. the system mode. The keys on the Check if the keys function properly by operation panel do not repeating the following operation 10 times function properly. in ON LINE mode.
5. TROUBLESHOOTING EO18-33016A 5. TROUBLESHOOTING Possible cause The connectors are not inserted completely. The print head is not installed properly. Check point Check if the connectors are completely inserted. If the print head is not installed properly, the temperature of the print head cannot be obtained. Check the print head temperature in the system mode. (Refer to System Mode Manual, Section 2.5.) Solution Insert the connectors completely.
5. TROUBLESHOOTING EO18-33016A 5. TROUBLESHOOTING Possible cause Check point The feed gap sensor has Usually, a sensor calibration is automatically not been adjusted. performed. However, for some media, it may be necessary to register a print area level voltage and a no paper level voltage in the system mode. The difference between two voltages must be 1V or more. The sensor harness is not connected properly. The media sensor is not installed correctly.
5. TROUBLESHOOTING EO18-33016A 5. TROUBLESHOOTING Possible cause Check point The feed gap sensor has Usually, a sensor calibration is automatically not been adjusted. performed. However, for some media, it may be necessary to register a print area level voltage and a black mark level voltage in the system mode. The difference between two voltages must be 1V or more. The sensor harness is not connected properly. The media sensor is not installed correctly.
5. TROUBLESHOOTING EO18-33016A 5. TROUBLESHOOTING Possible cause The ribbon is not correctly loaded. Check point Make sure that the protrusion of the left side of the ribbon holder is fitted into the notch of the ribbon core. When the ribbon is slack, this error may occur. Combination of ribbon Depending on the combination of ribbon and media is not proper. and media, the ribbon may slip on the media. Non-approved ribbon may not be taken up correctly.
5. TROUBLESHOOTING EO18-33016A 5. TROUBLESHOOTING Situation: Communication 1. Printing is not performed in case of Centronics Interface communication. Possible cause Check point Solution The interface cable has a The Centronics interface cable should Use an IEEE1284 compliant cable. problem. comply with IEEE1284. Clear the pause or error state, and make The printer is in PAUSE or When the printer is in pause or error the printer on line state. ERROR state. state, the communication cannot be made.
