Canon GP200 Service Manual page 91

The image of an original may be shifted as fol-
lows by combining shifts in main and sub scan-
ning directions.
q Corner Shift
The coordinates (X1, Y1) of the corner of a
specific area is moved to any of the four cor-
ners of the copy.
w Center Shift
The coordinates (Xm, Ym) are computed from
the size of the area to be shifted and the size
of the copy so that the margins at the top and
bottom and left and right will be identical; the
area will be moved to X1 and Y1.
(0,0)
X
1
Y
1
Y
2
(Ymax)
Area to be shifted
(may be entire original)
Original
COPYRIGHT © 1996 CANON INC.
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(Xmax)
X
2
Figure 3-312
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. OPERATIONS AND TIMING
Reference:
Xmax–(X2–X1)
Xm=
2
Ymax–(Y2–Y1)
Ym=
2
e Free Shift
The coordinates (X1, Y1) of a specific area is
moved to a specific point (Xp, Yp).
1 1 Corner Shift
(0,0)
2 Center shift
Xm Xmax
ym
Ym
xm xm
ym
Ymax
3 Free shift
Xp X Xmax
1
Y
1
Yp
Ymax
Copy paper
Copy paper
Copy paper
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