Toshiba MJ-1104 Service Manual page 67

[E] Folding motor drive circuit
The folding motor drive circuit controls the rotation and stoppage, rotational direction and motor current
of the folding motor.
The folding motor is a DC motor which is driven by rotation control signals (DM1-CNT1 and DM1-
CNT0) from the CPU of the saddle control PC board, and thus this motor performs a folding operation
and the paper is exited to the saddle tray.
DM1-CNT1 DM1-CNT0
L H
H L
H H
L L
For the case when an overcurrent status is detected, a protection circuit is mounted to turn the folding
motor off.
Saddle control PC board
DM1-CNT0
DM1-CNT1
IC31
CPU
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Motor rotation
Normal Operates the folding.
Reverse The paper is exited to the saddle tray
Stop
Stop Not used.
5VPA VM
Motor drive circuit
Overcurrent
protection circuit
Fig. 3-45
3 - 39
Remarks
DM1-F
Folding motor
(M17)
DM1-R
DESCRIPTION OF OPERATIONS
3
MJ-1103/1104