Toshiba B-852-R manual Replacing the Main PC Board

2. MAJOR UNIT REPLACEMENT

EO18-33018

2.3 Replacing the MAIN PC Board

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 screws to detach the rear frame cover.

SMW-3x6

Screw

Rear Frame Cover

4)Disconnect the harnesses from CN1, CN2, CN5, CN8, CN9 and CN500 on the MAIN PC board.

CN9 (Print Head Harness, Signal)

CN5 (Media Sensor Harness)

CN2 (Ribbon Motor Harness)

CN1 (Print Head Harness, Power)

MAIN PC Board CN500 (Stepping Motor Harness)

2-3