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COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4
IMAGE FORMATION SYSTEM
This chapter discusses the principles of how images are formed. It also explains the
timing at which the various units involved in image formation are operated, and shows
how they may be disassembled/assembled and adjusted.
I. IMAGE FORMATION SYSTEM ...4-1
A. Outline ...................................4-1
B. Timing Chart for the Image
Formation System .................4-3
C. Controlling the Primary
Charging Roller Bias .............4-4
D. Controlling the Transfer
Roller Bias .............................4-8
E. Controlling the Developing/
Separation Static Eliminator
Bias .................................... 4-11
F. Measuring the Density of
Originals ............................. 4-16
G. Controlling the Side Blanking
Mechanism ......................... 4-21
II. DISASSEMBLY/ASSEMBLY ..... 4-22
A. Cartridge ............................ 4-23
B. Transfer Charging
Assembly............................ 4-25
C. Blank Exposure .................. 4-26