Table 3-104
3. OPERATIONS AND TIMING
COPYRIGHT © 1996 CANON INC.
CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-27
Purpose
Stabilizes the drum sensi-
tivity in preparation for
copying operation.
Controls the drum surface
potential V
D
.
Controls the drum surface
potential V
L
.
Measures the density of
the original while the scan-
ner is moving in reverse.
The scanning lamp illumi-
nates the original, and the
reflected optical image is
projected onto the photo-
sensitive drum through
mirrors and lenses.
The scanner is returned
to the home position in
preparation for the next
copy.
The surface of the drum is
cleaned (by removing
charges) as post copying
operation.
From when the Copy
Start key is pressed until
CNTR1 starts.
For about 5 sec from the
end of INTR.
For about 5 sec from the
end of CNTR1.
While the scanner moves
forward about 120 mm and
returns to home position.
While the scanner is
moving forward.
•
.
The distance over which
the scanner moves for-
ward varies according
to the copy paper size
and the selected repro-
duction ratio.
•
.
The speed at which the
scanner moves forward
varies depending on the
selected reproduction
ratio.
While the scanner is
moving in reverse.
From the end of SCRV
until the main motor stops.
INTR
(initial rotation)
CNTR1
(control rotation 1)
CNTR2
(control rotation 2)
AER
(AE rotation)
SCFW
(scanner forward)
SCRV
(scanner reverse)
LSTR
(last rotation)
Remarks
The lens is moved. If the
lens does not reach a spe-
cific position within a spe-
cific period of time, INTR
is continued until the lens
movement is completed.
The scanner motor is
rotated in reverse before
potential control to ensure
that the scanner is at
home position.
Determines the develo-
ping bias (DC component)
for copying according to
the measurement of V
L2
.
Control is executed only
in AE mode.
•
.
The registration signal is
generated and the copy
paper is moved to the
transfer assembly.
•
.
The pick-up signal is
generated, and the sheet
of copy paper is picked
up.
Discharges the last copy.
Period
Содержание NP6085
Страница 8: ......
Страница 44: ......
Страница 46: ......
Страница 58: ......
Страница 100: ......
Страница 102: ......
Страница 425: ......
Страница 481: ......
Страница 483: ......
Страница 493: ......
Страница 498: ...COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON A 5 ...
Страница 502: ...PRINTED IN JAPAN IMPRIME AU JAPON 0697AB0 6 3 This publication is printed on 70 reprocessed paper ...