Canon STAPLER SORTER-L1/MS-C1 Service Manual page 71

3. Controlling the guide bar swing motor (M3)
The circuit diagram in Figure 2-510 shows the control circuit for the guide bar swing motor
(M3).
The guide bar swing motor is a 2-phase stepping motor.
The sorter controller PCB sends drive pulses (GBMPA, GBMPA*, GBMPB, and GBMPB*)
to the motor driver.
The motor driver controls the output timing of the pulse signal A, A*, B, and B* according to
each signal, thereby switching ON and OFF the guide bar swing motor (M3) and its rotating
direction.
While the guide bar swing motor (M3) is at the hold condition, the output of the pulse signal A,
A*, B, and B* is fixed.
Sorter Controller circuit PCB
CPU
COPYRIGHT © 1998 CANON INC. CANON STAPLER SOTRER-L1 MS-C1 REV.0 NOV. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
GBMPA
GBMPA*
GBMPB
Q1
GBMPB*
Figure 2-510
CHAPTER 2 OPERATIONS AND TIMING
A
Q30
A*
Motor
driver
B
B*
GBHP
Guide bar
swing motor
M3
PI6
Guide bar home
position sensor
2-47