Toshiba MJ-1104 Service Manual page 56

[F] Entrance motor drive circuit
The entrance motor drive circuit controls the rotation and stoppage, rotational direction and motor cur-
rent of the entrance motor.
The entrance motor is driven by pulse signals (MOT1-OUT1A, MOT1-OUT1B, MOT1-OUT2A and
MOT1-OUT2B) output from the motor driver (IC1) under the command of a clock signal (TIOCA1), a
rotational direction signal (MOT1-DIR) and current setting signals (MOT1-CUR1 and MOT1-CUR0)
from the CPU of the finisher control PC board, and thus this motor rotates the feeding roller, junction
roller and entrance roller.
MOT8-
TIOCA1
DIR
Clock signal H
Clock signal H
Clock signal L
Clock signal L
- -
Finisher control PC board
IC21
CPU
MOT1-CUR0
MOT1-CUR1
MJ-1103/1104
DESCRIPTION OF OPERATIONS
MOT8- MOT8-
Motor rotation
CUR1 CUR0
L H Normal (Low power)
L L Normal (Normal power)
L H Reverse (Low power)
L L Reverse (Normal
H -
3.3V
TIOCA1 10
MOT1-DIR 16
P-RESET 15
P-RESET
Motor driver
Current
13
control
circuit
Paper is pulled in.
Not Used.
power)
Stop
VM
1 MOT1-A
2
3 MOT1-C
4
IC1
23 MOT1-B
22
21 MOT1-D
20
SG
Fig. 3-33
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Remarks
Entrance motor
(M1)