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OPERATIONS AND TIMING
COPYRIGHT
©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
III. IMAGE FORMATION
SYSTEM
A. Outline
The machine’s image formation system con-
sists of the following:
• Controls the scanning lamp.
• Controls the primary charging.
• Controls the transfer charging.
• Controls the separation static eliminator.
• Controls the developing bias.
• Controls the blank exposure lamp.
Figure 3-301
DC controller
PCB
Q301
Microprocessor
AE sensor
Scanning lamp
Copyboard
Lens
Blank exposure
unit
Primary
charging
roller
Composite power
supply
Scanning lamp
ON control circuit
Microprocessor
High-voltage
circuit
T1
T2
T5
Static
eliminator
Developing cylinder
Transfer
roller