Canon NP6621 Service Manual page 66

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OPERATIONS AND TIMING
3. Outputs from the DC Controller PCB (3/5)
Duplexing
M5
unit motor
3–10
Figure 3-110
COPYRIGHT © 1998 CANON INC.
DC controller PCB
J326- 1
COM A
- 2
COM B
- 3
While M5 is rotating, alternates
A
- 4
between '1' and '0.
A*
(pulse signal)
- 5
B
- 6
B*
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)

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