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COPYRIGHT
©
1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
5–11
CHAPTER 5 PICK-UP/FEEDING SYSTEM
IV. CONTROLLING THE REGISTRATION CLUTCH
The registration clutch exerts the following control so as to match copy paper with the image
on the photosensitive drum at a specific location.
Copy paper
B
Copy paper ahead of
image on drum
Image on drum
Drum
Copy paper
A
Copy paper behind image
on drum
Image on drum
Drum
Copy paper
Standard copying
Selected copy mode Control timing
A
Page separation
A
Fit to page
Centering
OFF
Centering
ON
The size of margin
C varies to suit the
selected reproduction
ratio and copy paper
size. The size of margin
D is 21.6 mm maximum.
A
B
Image area on copy paper Remarks
Image area
D C-D
C
Figure 5-401
If centering is turned on in Fit Page mode, control is exerted so that half of the trailing edge
C resulting in relation to the selected reproduction ratio and copy paper size will be the leading
edge margin. The maximum leading edge margin in such cases, however, is 21.6 mm.
If centering is turned off in Fit Page mode, control is exerted so that the leading edge of copy
paper and the leading edge of the image on the photosensitive drum match.