Toshiba MJ-1104 Service Manual page 61

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[K] Movable tray shift motor drive circuit
The movable tray shift motor drive circuit controls the rotation and stoppage, rotational direction and
motor current of the movable tray shift motor.
The movable tray shift motor is a DC motor which is driven by rotation control signals (DM1-CNT1 and
DM1-CNT0) from the CPU of the finisher control PC board, and thus this motor shifts the movable tray
in a hoisting movement. For the case when an overcurrent status is detected, a protection circuit is
mounted to turn the movable tray shift motor off.
DM1-CNT0
DM1-CNT1
H
L
L
H
H
H
L
L
Finisher control PC board
DM1-CNT0
DM1-CNT1
IC21
CPU
© 2008, 2009 TOSHIBA TEC CORPORATION All rights reserved
Motor rotation
Normal
The movable tray unit is shifted to the lower side.
Reverse
The movable tray unit is shifted to the upper side.
Stop
Stop
5VPA
VM
Motor drive circuit
Overcurrent
protection circuit
Fig. 3-38
3 - 33
Remarks
DM1-F
Movable tray
shift motor
(M12)
DM1-R
MJ-1103/1104
DESCRIPTION OF OPERATIONS
3

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