Replacing The Stepping Motor - Toshiba B-570 SERIES Owner's Manual

2. MAJOR UNIT REPLACEMENT

2.2 REPLACING THE STEPPING MOTOR

1) Remove the two black screws to detach the front plate, remove the two FL-4x6 screws to detach the
belt cover.
Front Plate
2) Unclamp and disconnect the connector from CN13 on the CPU PC board.
3) Remove the two SM-4x8B screws, loosen the two belts from the pinion gear, and remove the
stepping motor.
CPU PC Board
CN13
PS Unit
Stepping Motor
4) When replacing the stepping motor, place the platen belt first then the feed roller belt around the
pinion gear so that the partition is positioned between two belts. Hold down the stepping motor at
3.5 kg 300 g force and secure it so that the belts have no slack or disengagament.
5) Reassemble in the reverse order of removal.
Black Screw
Platen Belt
Clamp
Screw (FL-4x6)
Partition
Pinion Gear
2-4
(Revision Date: Feb. 10, 2000)
2.2 REPLACING THE STEPPING MOTOR
Belt Cover
Fig. 2-6
Screw (SM-4x8B)
Feed Roller Belt
Fig. 2-7
EM18-33010A