Toshiba B-852-R - Manuals

2. MAJOR UNIT REPLACEMENT EO18-33018 2.3 Replacing the MAIN PC Board 2-3 2.3 Replacing the MAIN PC Board 1) Prior to replacing the MAIN PC board, print out the parameter settings for future reference. 2) Remove the side cover L from the printer. (Refer to Section 2.1.) 3) Remove the three SMW-3x6 sc...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.3 Replacing the MAIN PC Board 2-4 4) Remove the two SMW-4x8 screws, SMW-3x6 screw and B-3x6 screw. 5) Disconnect the power harness from CN8 on the MAIN PC board ass’y, then remove the MAIN PC board ass’y from the printer. SMW-3x6 Screw SMW-4x8 Screw B-3x6 Screw...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.3 Replacing the MAIN PC Board 2-5 6) Remove the two B-3x6 screws and the two SMW-3x6 screws, then remove the MAIN PC board from the MAIN PCB support frame. 7) Replace the MAIN PC board with a new one, and reassemble in the reverse order of removal. 8) After rep...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.4 Replacing the Panel PC Board 2-6 2.4 Replacing the Panel PC Board 1) Remove the side cover L from the printer. (Refer to Section 2.1.) 2) Remove the PT-3x8 screw to detach the operation panel ass’y from the side cover L in the direction indicated by the arrow...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.4 Replacing the Panel PC Board 2-7 5) Remove the two PT-3x6 screws and W-4 washers to detach the panel PC board from the operation panel cover. 6) Replace the panel PC board with a new one, then reassemble in the order removal. 7) Turn the power on, then confir...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.5 Replacing the Stepping Motor 2-8 2.5 Replacing the Stepping Motor 1) Remove the side cover L and MAIN PC board ass’y from the printer. (Refer to Sections 2.1 and 2.3.) 2) Remove the two SMW-3x6 screws to detach the PCB support plate from the printer. 3) Remov...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.5 Replacing the Stepping Motor 2-9 NOTE: Apply FLOIL to the stepping motor’s pulley and the motor gear when reassembling the stepping motor. Motor Gear Pulley Stepping Motor

2. MAJOR UNIT REPLACEMENT EO18-33018 2.6 Replacing the Head Up Sensor, Slit Sensor (Rewind/Feed) and Ribbon Motor (Rewind/Feed) 2-12 5) Push and release the hook A, then release the hook B to remove the slit sensor from the sensor holder. 6) Replace the slit sensor with a new one, then reassemble in...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.6 Replacing the Head Up Sensor, Slit Sensor (Rewind/Feed) and Ribbon Motor (Rewind/Feed) 2-13 NOTES: 1. After replacing the ribbon motor, refer to Section System Mode Manual to perform a Maintenance Counter clear. 2. Secure the ribbon motors while inserting a 0...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.7 Replacing the Platen 2-14 Print Head Head Block Release Lever 2.7 Replacing the Platen 1) Prior to replacing the platen, print out the maintenance counter for future reference. 2) Open the top cover, and raise the print head block by pressing down the head bl...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.7 Replacing the Platen 2-15 6) Replace the platen with a new one, then reassemble in the reverse order of removal. NOTE: When reassembling, confirm the orientation of the shaft holder. (See the picture below.) 7) Perform a test print to confirm that the printer...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.8 REPLACING THE MEDIA SENSOR 2-16 2.8 REPLACING THE MEDIA SENSOR 2.8.1 Feed Gap Sensor (TR) and Black Mark Sensor (Upper Side) 1) Open the top cover and raise the print head block. 2) Pull up the two tabs of the sensor case cap to remove it from the sensor bloc...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.8 REPLACING THE MEDIA SENSOR 2-17 2.8.2 Feed Gap Sensor (LED) and Black Mark Sensor (Lower Side) 1) Remove the platen holder R, platen holder L, platen, and strip plate from the printer 2) Remove the SMW-4x8 screw to detach the front cover from the printer. 3) ...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.8 REPLACING THE MEDIA SENSOR 2-18 NOTES: 1. When reassembling the sensor case cap, fit the hooks of the sensor case into portion A of the sensor case cap. 2. When reassembling the sensors, align the pins on the sensor case with the holes of the sensors. 3. Conn...

2. MAJOR UNIT REPLACEMENT EO18-33018 2.9 REPLACING THE PRINT HEAD 2-19 2.9 REPLACING THE PRINT HEAD 1) Open the top cover and raise the print head block. 2) Push the print head ass’y to the right side, lift it in the direction of the arrow, and release it from the print head fixing pin. 3) Disconnec...

2. MAJOR UNIT REPLACEMENT EO18-33018 (Revision Date: May 21, 2007) 2.10 Replacing the PS Unit and Reactor 2-20 2.10 Replacing the PS Unit and Reactor NOTE: The reactor is installed in the B-852-TS22-QP-R and B-852-TS22-CN models. 1) Remove the side covers L, side cover R and MAIN PC Board from the p...

2. MAJOR UNIT REPLACEMENT EO18-33018 (Revision Date: May 21, 2007) 2.10 Replacing the PS Unit and Reactor 2-21 5) Disconnect the PSU harness from CN4 on the PS unit. 6) Disconnect the harnesses from CN1 on the PS unit. For the QP and CN models, disconnect the harness from CN2, too. 7) Remove the two...

3. PERIODIC MAINTENANCE PROCEDURE EO18-33018 3. PERIODIC MAINTENANCE PROCEDURE 3-1 3. 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...

3. PERIODIC MAINTENANCE PROCEDURE EO18-33018 3. PERIODIC MAINTENANCE PROCEDURE 3-2 3) Clean the print head elements with the TOSHIBA TEC-approved print head cleaner. (Please instruct your customers to clean them daily.) 4) Remove any paper dust and glue of the label. Wipe off moving range of the med...

3. PERIODIC MAINTENANCE PROCEDURE EO18-33018 3. PERIODIC MAINTENANCE PROCEDURE 3-3 5. Apply FLOIL G-488 to the cutter unit using a soft cloth. 6. Clean the Cutter Blade with a cotton swab moistened with absolute ethyl alcohol. 7. Confirm that the problem occurs as reported, and then take corrective ...