Transfer Unit - Canon 1000 Service Manual

3. OPERATION AND TIMING
E. Transfer Unit
1. Outline
The CLC1000's transfer unit is constructed as shown in Figure 3-630. The transfer unit is used to retain
paper coming from the registration roller to the transfer belt by the transfer blade (Y) and, at the same time,
to transfer the toner images on the Y, M, C, and Bk photosensitive drums to the paper. Thereafter, the
transfer unit operates to feed the paper separated by the transfer belt by the separation charging unit to the
pre-fixing feeding assembly.
The transfer unit has the following functions:
• Moves the transfer blade in/out of position.
• Detects the home position of the transfer belt.
• Corrects displacement of the transfer belt.
• Operates the lifter of the transfer belt.
• Cleans the transfer belt.
Transfer belt motor
M14
Separation
corona
assembly
Drive roller
Grounding roller
Transfer belt
3-160
COPYRIGHT © 2001 CANON INC.
Photosensitive
Photosensitive
drum (Bk)
Transfer blade
solenoid (C)
SL7Bk SL7C
PS18
PS20
Transfer blade
PS17 Transfer cleaning blade
solenoid (Bk)
PS19
Transfer cleaning
blade solenoid
M12
Transfer belt cleaning
web motor
Transfer adsorbing
Photosensitive
drum (C) drum (M)
SL7M
Transfer blade solenoid (M)
Transfer blade solenoid (Y)
Polishing roller
PS10 PS11
Transfer belt
cleaning web
Transfer
lifter arm
SL18
Polishing roller
solenoid
Figure 3-630
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Transfer belt
swinging motor
Photosensitive
drum (Y)
Paper
Driven
roller
PS16
Swinging
SL7Y
roller
PS12
Oil removing
roller
M15
Polishing/oil
removing motor
Pick-Up motor
M10 CL17
Transfer belt
lifter clutch
M13
Signal
plate
PS13
Cam