[I]Transport motor drive circuit

The transport motor drive circuit controls the rotation and stoppage, rotational direction and motor cur- rent of the transport motor.

The transport motor is driven by pulse signals (MOT7-OUT1A, MOT7-OUT1B, MOT7-OUT2A and MOT7-OUT2B) output from the motor driver (IC43) under the command of a clock signal (TIOCA0), a rotational direction signal (MOT7-DIR) and current setting signals (MOT7-CUR1 and MOT7-CUR0) from the CPU of the finisher control PC board, and thus this motor rotates the stack transport roller-1 and -2.

TIOCA0

MOT7-

MOT7-

MOT7-

Motor rotation

Remarks

DIR

CUR1

CUR0

 

 

 

Clock signal

H

L

H

Normal (Low power)

Paper is transported to the finishing posi-

 

 

 

 

 

tion.

Clock signal

H

L

L

Normal (Normal power)

Clock signal

L

L

H

Reverse (Low power)

Paper is transported to the movable tray.

Clock signal

L

L

L

Reverse (Normal

 

 

 

 

 

power)

 

-

-

H

-

Stop

 

Finisher control PC board

 

 

 

 

 

 

 

 

 

 

 

 

3.3V

VM

 

 

 

 

 

P-RESET

5

 

 

24

 

MOT7-OUT1A

 

 

 

 

 

 

 

 

 

P-RESET

13

 

 

 

 

 

 

IC21

 

 

 

 

 

1

 

MOT7-OUT2A

 

 

 

 

 

 

 

CN10

 

(M7)

 

 

 

 

IC43

 

 

 

TIOCA0

 

16

 

 

 

Transport motor

CPU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MOT7-DIR

20

Motor driver

21

 

MOT7-OUT1B

 

 

 

 

 

 

 

 

 

MOT7-CUR0

Current

 

 

 

 

 

 

 

 

 

17

 

 

4

 

MOT7-OUT2B

 

 

MOT7-CUR1

control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

 

 

 

 

SG

 

 

 

 

 

 

 

 

 

Fig. 3-36

 

 

 

3

© 2008, 2009 TOSHIBA TEC CORPORATION All rights reserved

MJ-1103/1104

 

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Page 59
Image 59
Toshiba MJ-1103, MJ-1104 service manual Transport motor drive circuit, Paper is transported to the finishing posi, Tion