Controlling The Transfer Charging Roller Bias - Canon GP200 Service Manual

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C. Controlling the Transfer

Charging Roller Bias

The GP215/GP200 uses direct transfer exe-

cuted by means of a roller. As many as four types

of biases are used for application to the transfer

charging roller, and each has the following func-

tion and output timing:

Composite power supply PCB

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Transforemer

(increase)circuit

DC controller PCB

Figure 3-504

CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)

3. OPERATIONS AND TIMING

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