Canon PC980 Service Manual - Page 95
I. Image Formation System
UPC - 030275182323
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CHAPTER 4 IMAGE FORMATION SYSTEM I. IMAGE FORMATION SYSTEM A. Outline The major functions of the image formation system are as follows: Item Controlling the primary charging roller bias Description AC constant current control, on/off control DC constant voltage control, on/off control DC voltage level control Transfer roller bias control DC constant voltage control, on/off control DC constant current control (ATVC, cleaning bias) Voltage level control Polarity switching Developing/separation static eliminator bias control DC constant voltage control, on/off control AC constant voltage control, on/off control DC voltage level control Density control Developing DC bias control Blanking control Side blanking lamp Table 4-101 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-1