Canon PC300 Service Manual page 46

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: Transformer
(7106)
DC current
detection
DC bias
DC
bias
ON
command
COPYRIGHT © 1994 CANON INC.
control circuit
command
(HVPHO)
SAAN
OPERATIONS AND TIMING esi
Primary
charging
roller
Transformer
(T103)
Photo-
sensitive
drum
Oscillation
control circuit
Current
detection
circuit
AC
bias
ON
command
Microprocessor
DC controller/DC power supply PCB
Figure 3-16
CANON PC300/320/325,FC210!290 REVO JULY 1994 PRINTED IN JAPAN (MPRIME
AU JAPON}
3-19

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