Replacing The Head Up Sensor, Slit Sensor (Rewind/Feed) And Ribbon Motor (Rewind/Feed) - Toshiba B-852-R Series Maintenance Manual

2. MAJOR UNIT REPLACEMENT
2.6 Replacing the Head Up Sensor, Slit Sensor (Rewind/Feed) and Ribbon
Motor (Rewind/Feed)
Prior to replacing the sensors or ribbon motor, perform the following operations.
1) Open the top cover. (Refer to Section 2.1.)
2) Remove the side cover L from the printer. (Refer to Section 2.1.)
3) Press down the head block release lever and raise the print head block.
4) Remove the MAIN PC board ass'y. (Refer to Section 2.3.)
2.6.1 Replacing the Head Up Sensor
1) Remove the sensor harness and the SMW-3x6 screw, then remove the head up sensor from the
printer.
Head Up Sensor
Sensor
Harness
2) Push and release the hook A, then release the hook B to remove the head up sensor from the
sensor holder.
Sensor Holder
1
Hook A
1
Hook B

2.6 Replacing the Head Up Sensor, Slit Sensor (Rewind/Feed) and Ribbon Motor (Rewind/Feed)

Print Head Block
2
SMW-3x6 Screw
2-10
EO18-33018
Head Block
Release Lever
Head Up Sensor