3
© 2008, 2009 TOSHIBA TEC CORPORATION All rights reserved
MJ-1103/1104
DESCRIPTION OF OPERATIONS
3 - 37
[C] Front / Rear saddle stapler motor drive circuit
The front / rear saddle stapler motor drive circuit controls the rotation and stoppage, rotational direction
and motor current of the front / rear saddle stapler motor.
The front saddle stapler motor is a DC motor which is driven by rotation control signals (DM2-CNT1 and
DM2-CNT0) from the CPU of the saddle control PC board, and thus this motor performs a stapling
operation of the front saddle stapler.
The rear saddle stapler motor is a DC motor which is driven by rotation control signals (DM3-CNT1 and
DM3-CNT0) from the CPU of the saddle control PC board, and thus this motor performs a stapling
operation of the rear saddle stapler.
For the case when an overcurrent status is detected, a protection circuit is mounted to turn the front /
rear saddle stapler motor off.
Fig. 3-43
DM2-CNT1
DM2-CNT0
Motor rotation
Remarks
L
H
Normal
Operates the stapler.
H
L
Reverse
Initial operation
(Only when the stapler operates abnormally.)
H
H
Stop
L
L
Stop
DM3-CNT1
DM3-CNT0
Motor rotation
Remarks
L
H
Normal
Operates the stapler.
H
L
Reverse
Initial operation
(Only when the stapler operates abnormally.)
H
H
Stop
L
L
Stop
IC31
CPU
DM2/3-CNT0
DM2/3-F
VM
5VPA
Front saddle
stapler motor
(M18)
Rear saddle
stapler motor
(M19)
Motor drive circuit
Saddle control PC board
Overcurrent
protection circuit
DM2/3-R
DM2/3-CNT1
CN6/7
Summary of Contents for MJ-1103
Page 28: ...MJ 1103 1104 2008 2009 TOSHIBA TEC CORPORATION All rights reserved GENERAL DESCRIPTION 2 16 ...
Page 277: ... C Saddle control PC board Fig 8 34 ...
Page 278: ...MJ 1103 1104 2008 2009 TOSHIBA TEC CORPORATION All rights reserved ELECTRIC CIRCUIT 8 34 ...
Page 280: ...MJ 1103 1104 2008 2009 TOSHIBA TEC CORPORATION All rights reserved REVISION RECORD 2 ...
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