MJ-1103/1104
© 2008, 2009 TOSHIBA TEC CORPORATION All rights reserved
DESCRIPTION OF OPERATIONS
3 - 28
[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.
Fig. 3-33
TIOCA1
MOT8-
DIR
MOT8-
CUR1
MOT8-
CUR0
Motor rotation
Remarks
Clock signal
H
L
H
Normal (Low power)
Paper is pulled in.
Clock signal
H
L
L
Normal (Normal power)
Clock signal
L
L
H
Reverse (Low power)
Not Used.
Clock signal
L
L
L
Reverse (Normal
power)
-
-
H
-
Stop
IC21
CPU
TIOCA1
MOT1-CUR1
MOT1-A
VM
MOT1-C
MOT1-B
MOT1-D
SG
MOT1-DIR
1
21
3
23
15
16
10
13
P-RESET
P-RESET
3.3V
IC1
Motor driver
2
4
22
20
MOT1-CUR0
CN26
Entrance motor
(M1)
Finisher control PC board
Current
control
circuit
Содержание MJ-1103
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Страница 277: ... C Saddle control PC board Fig 8 34 ...
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