Canon NP6251 Service Manual page 52

CHAPTER 2 BASIC OPERATION
Period
SCFW1 While the scanner is
(scanner moving forward
forward 1; • The distance over
copying which the scanner
original on moves forward
left) varies according to
copy paper size and
ratio.
SCRV1 From when the
(scanner scanner starts to
forward 1) move in reverse to
when the copy paper
is delivered.
SCFW2 While the scanner is
(scanner moving forward.
forward 2; • The distance over
copying which the scanner
original on travels varies
right) according to copy
paper size and ratio.
SCRV From when the
(scanner scanner starts to
reverse 2) move in reverse to
when the developing
clutch turns off.
Note: For copy sequences other than the above, see Table 2-102.
2-10
COPYRIGHT © 1997 CANON INC.
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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.
Table 2-103
CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
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.