[C] Buffer tray guide motor drive circuit

The buffer tray guide motor drive circuit controls the rotation and stoppage, rotational direction and motor current of the buffer tray guide motor.

The buffer tray guide motor is driven by pulse signals (MOT2-OUT1A, MOT2-OUT1B, MOT2-OUT2A and MOT2-OUT2B) output from the motor driver (IC48) under the command of a clock signal (TIOCA5),

arotational direction signal (MOT2-DIR) and a current setting signals (MOT2-CUR1 and MOT2-CUR0) from the CPU of the finisher control PC board, and thus this motor opens or closes the buffer tray guide.

TIOCA5

MOT2-

MOT2-

MOT2-

Motor rotation

Remarks

DIR

CUR1

CUR0

 

 

 

Clock signal

H

L

H

Normal (Low power)

The guide is closed.

Clock signal

H

L

L

Normal (Normal power)

 

Clock signal

L

L

H

Reverse (Low power)

The guide is opened.

Clock signal

L

L

L

Reverse (Normal

 

 

 

 

 

power)

 

-

-

H

-

Stop

 

Finisher control PC board

 

 

 

 

 

 

 

 

 

 

 

 

3.3V

VM

 

 

 

 

 

P-RESET

5

 

 

24

 

MOT2-OUT1A

 

 

 

 

 

 

 

 

 

P-RESET

13

 

 

 

 

 

 

IC21

 

 

 

 

 

1

 

MOT2-OUT2A

 

 

 

 

 

 

 

 

 

 

 

TIOCA5

16

IC48

 

CN11

 

Buffer tray

CPU

 

 

 

 

 

 

 

 

guide motor

 

 

 

 

Motor driver

21

MOT2-OUT1B

 

MOT2-DIR

20

 

(M2)

 

 

 

 

 

 

 

MOT2-CUR0

Current

 

 

 

 

 

 

 

 

 

17

 

 

4

 

MOT2-OUT2B

 

 

 

control

 

 

 

 

 

MOT2-CUR1

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SG

 

 

 

 

 

 

 

 

 

Fig. 3-30

 

 

 

3

© 2008, 2009 TOSHIBA TEC CORPORATION All rights reserved

MJ-1103/1104

 

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Page 53
Image 53
Toshiba MJ-1103, MJ-1104 service manual Buffer tray guide motor drive circuit, Guide is closed, Guide is opened