Figure 3-321 shows the circuit that controls the foregoing three types of bias, and the circuit
has the following functions:
l turns on and off the transfer roller bias.
l controls the transfer bias to a constant voltage.
l corrects the voltage level of the transfer bias (ATVC),
; switches the polarity of the DC bias (cleaning).
Photosensitive Transfer
’ c)
drum
charging
roller
Microprocessor
Microprocessor
DC control PCB
Figure 3-321
3 - 38 COPYRIGHT 0 1995 CANONINC.
CANON NP60iZ/NP6012F/NP6212 REV.1 SEPT.1995 PRlNTEDINJAPAN(IMPRIMtAUJAPON)
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