Toshiba MJ-1103, MJ-1104

DESCRIPTION OF OPERATIONS

3 - 33

[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.

Fig. 3-38

DM1-CNT0 DM1-CNT1 Motor rotation Remarks

H L Normal The movable tray unit is shifted to the lower side.

L H Reverse The movable tray unit is shifted to the upper side.

HH Stop

LLStop

IC21

CPU

DM1-CNT0 DM1-F

VM5VPA

Movable tray

shift motor

(M12)

Motor drive circuit

Finisher control PC board

Overcurrent

protection circuit

DM1-R

DM1-CNT1

CN16