Service manual

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 CASSETTE FEEDER
10-7
V. FEEDER MOTOR CONTROL
A. Operation
The feeder motor (M651) of this unit uses a stepping motor.
The A phase pulse circuit and the B phase pulse circuit, located on the feeder con-
troller PCB, emit drive pulses (A • A* • B • B*). Changes in the order and frequency of
the pulses control the rotation.
Figure 10-501
M651
Feeder
motor
A
A*
B
B*
J652-4
-2
-3
-1
A phase
pulse
control
B phase
pulse
control
Drive
control
circuit
+24V
Feeder controller PCB
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