Canon PC300 Service Manual page 55

"OPERATIONS AND TIMING:
| J621
-2
J621
-1
4V (approx.)
Amplifier circuit
Control panel PCB
3-28 COPYRIGHT © 1994 CANON INC,
Jeo 202
4 -19 |
race Forward
ee ( Scanning lamp
AEsensor' YX,
ppeo2 #F [|~ Lens array
Photosensitive drum
Developing
cylinder
or ep ee ee - 7
DC bias
control
circuit
DCBPWM
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bc controller/DC power supply PC
Figure 3-23
CANON PC300/320/925, FC210/290 REV.O JULY 1994 PRINTED IN JAPAN (IMPRIME AU JAPON)