Canon NP6251, Service Manual

Page: 52 / 812

Note: For copy sequences other than the above, see Table 2-102.
Table 2-103
COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2 BASIC OPERATION
2-10
While the scanner is
moving forward
• The distance over
which the scanner
moves forward
varies according to
copy paper size and
ratio.
From when the
scanner starts to
move in reverse to
when the copy paper
is delivered.
While the scanner is
moving forward.
• The distance over
which the scanner
travels varies
according to copy
paper size and ratio.
From when the
scanner starts to
move in reverse to
when the developing
clutch turns off.
Period Remarks
• The registration signal
is generated to move
the copy paper to the
transfer assembly.
• The pick-up signal is
generated to pick up
the next sheet.
• The registration signal
is generated so that
the leading edge of
the image of the
original on the right
matches the copy
paper with reference
to the SCDP signal.
Function
Illuminates the original
on the left on the copy-
board with the scanning
lamp, and the reflected
optical image is project-
ed on the photosensi-
tive drum through
mirrors and lenses.
• Returns the scanner
to home position in
preparation for the
next copy.
• Transfers the toner
image on the drum to
copy paper.
Illuminates the original
on the right on the
copyboard with the
scanning lamp, and the
reflected optical image
is projected on the
photosensitive drum
through mirrors and
lenses.
• Returns the scanner
to home position in
preparation for the
next copy.
• Transfers the toner
image on the drum to
copy paper.
SCFW1
(scanner
forward 1;
copying
original on
left)
SCRV1
(scanner
forward 1)
SCFW2
(scanner
forward 2;
copying
original on
right)
SCRV
(scanner
reverse 2)