[H] Stapler unit shift motor drive circuit

The stapler unit shift motor drive circuit controls the rotation and stoppage, rotational direction and motor current of the stapler unit shift motor.

The stapler unit shift motor is driven by pulse signals (MOT9-OUT1A, MOT9-OUT1B, MOT9-OUT2A and MOT9-OUT2B) output from the motor driver (IC42) under the command of a clock signal (TIOCA3),

arotational direction signal (MOT9-DIR) and a current setting signals (MOT9-CUR1 and MOT9-CUR0) from the CPU of the finisher control PC board, and thus this motor shifts the stapler unit back and forth.

TIOCA3

MOT9-

MOT9-

MOT9-

Motor rotation

Remarks

DIR

CUR1

CUR0

 

 

 

Clock signal

H

L

H

Normal (Low power)

The stapler unit is shifted to the front side.

Clock signal

H

L

L

Normal (Normal power)

 

Clock signal

L

L

H

Reverse (Low power)

The stapler unit is shifted to the rear side.

Clock signal

L

L

L

Reverse (Normal

 

 

 

 

 

power)

 

-

-

H

-

Stop

 

Finisher control PC board

 

 

 

 

 

 

 

 

3.3V

VM

 

 

 

 

 

TIOCA3

10

 

1

 

MOT9-A

 

MOT9-DIR

16

 

2

 

 

 

 

 

 

 

 

IC21

P-RESET

15

 

3

 

MOT9-C

 

 

 

 

 

 

 

 

4

CN10

 

 

 

 

IC42

 

Stapler unit

CPU

 

 

 

 

 

 

 

 

 

shift motor

 

 

 

 

 

 

 

P-RESET

 

Motor driver

23

 

MOT9-B

(M9)

MOT9-CUR0

Current

13

 

22

 

 

 

control

 

 

 

 

 

 

 

 

 

 

 

 

MOT9-CUR1

circuit

 

 

21

 

MOT9-D

 

 

 

 

 

20

 

 

 

 

 

 

SG

 

 

 

 

 

 

 

Fig. 3-35

 

 

 

MJ-1103/1104

© 2008, 2009 TOSHIBA TEC CORPORATION All rights reserved

DESCRIPTION OF OPERATIONS

 

3 - 30

Page 58
Image 58
Toshiba MJ-1104, MJ-1103 service manual Stapler unit shift motor drive circuit, Stapler unit is shifted to the front side