Canon CLC 1130, Service Manual

Page: 61 / 965

CHAPTER 2 BASIC OPERATION
2-6
COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
B. Basic Sequence of Operations (copying)
Figure 2-202 shows the basic sequence of operations executed during copying.
Table 2-202
Figure 2-202 A4/LTR, 2 Copies, Full Color, Direct, Cassette 1
Photosensitive drum revolution
Transfer drum revolution
Side A sensor (PS2)
Side B sensor (PS3)
Scanner motor (PM15)
Scanning lamp (LA2)
Laser
Registration sensor (PS70)
Attraction high-voltage output
Pre-exposure lamp (LA1)
Post-cleaning high-voltage output
Primary high-voltage output
Developing bias DC component
Developing bias AC component
Transfer high-voltage output
Separation high-voltage output
Internal/external static eliminating
high-voltage output
Main motor (M4)
Drum motor (M2)
Start key ON
INTR COPY LSTR
STBY
DSRDY
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Y M M C C Y K K
M C
Y
K
M C
Y
K
Y
M M C C
Y
K
K
[2]
[1]
[1] Shading correction [2] Drum surface potential control
Period Purpose
Performs an original detection scan.
Picks up paper.
Turns on and off the laser by video
signals, and develops and transfers
the selected color.
Discharges paper. The transfer drum
is freed of charges (cleaned).
Stabilizes the sensitivity of the
photosensitive drum, and measures
and controls the surface potential of
the drum. Takes measurements for
shading correction.
DSRDY (scanner ready)
INTR (initial rotation)
COPY (copy)
LSTR (last rotation)
From when the Start key is
pressed until when the transfer
drum starts to rotate.
From when DSRDY ends to when
attraction of paper is started.
From when attraction of paper to
the transfer drum starts to when
all toner is deposited on paper.
From when COPY ends to when
the drum motor stops.