Canon PC400 Service Manual - Page 57

Canon PC400 Manual

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CHAPTER 4 IMAGE FORMATION SYSTEM This chapter outlines the machine's image formation system in relation to mechanisms and functions, relationship between electrical and mechanical systems,and the timing of operation of respective parts. I. PROCESS DESCRIPTION..........4-1 A. Outline 4-1 B. Sequence of Image Formation Operations (A4, 2 copies) .......4-2 C. Primary Charging Control Circuit 4-3 D. Controlling Developing Bias....4-6 E. Transfer Charging Control Circuit 4-10 F. Document Density Measurement (AE; PC420/430/FC220).......4-14 II. CHARGING, DEVELOPING, AND CLEANING SYSTEMS 4-17 A. Cartridge 4-17 III. MECHANICAL SYSTEM............4-18 A. Photosensitive Drum 4-19 B. Transfer Charging Roller.......4-20 COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1

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COPYRIGHT © 1998 CANON INC.
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
1
CHAPTER 4
IMAGE FORMATION SYSTEM
I.
PROCESS DESCRIPTION
..........
4-1
A.
Outline
....................................
4-1
B.
Sequence of Image Formation
Operations (A4, 2 copies)
.......
4-2
C.
Primary Charging Control Circuit
................................................
4-3
D.
Controlling Developing Bias
....
4-6
E.
Transfer Charging Control Circuit
..............................................
4-10
F.
Document Density Measurement
(AE; PC420/430/FC220)
.......
4-14
II.
CHARGING, DEVELOPING, AND
CLEANING SYSTEMS
..............
4-17
A.
Cartridge
...............................
4-17
III.
MECHANICAL SYSTEM
............
4-18
A.
Photosensitive Drum
.............
4-19
B.
Transfer Charging Roller
.......
4-20
This chapter outlines the machine's image formation system in relation to
mechanisms and functions, relationship between electrical and mechanical systems,and
the timing of operation of respective parts.