c. Reduced Image Composition
Reduced image composition mode may be
any of the following two:
q
2-on-1 mode, in which two originals are
reduced for copying on a single sheet of copy
paper.
w
4-on-1 mode, in which four originals are
reduced for copying on a single sheet of copy
paper.
Executing these modes requires control under
combination of reproduction ratio processing, shift
processing, and overlay processing.
In reproduction ratio processing, a reproduc-
tion ratio is computed based on the size of the
original and the size of the copy.
• Formula for Lengthwise Direction
a: copy paper length ÷ (original length
×
2)
b: copy paper length ÷ original length
• Formula for Breadthwise Direction
c: copy paper width ÷ (original width
×
2)
d: copy paper width ÷ original width
If the reproduction ratio in lengthwise direction
and that in breadthwise direction are different, the
smaller of the two will be selected; however, the
reproduction ratio will be between 25% and
800%.
Shift processing and overlay processing are
controlled as explained in the next page. See
Table 3-303 to find out what modes are available
in relation to different combinations of the RDF
and the duplexing unit.
Mode
Duplexing unit
RDF
Lengthwise ratio
Breadthwise ratio
2-on-1 (overlay)
Required
Not Required
b
c
2-on-1 (continuous)
Not Required
Required
a
d
2-on-1 (two-sided)
Required
Required
a
d
4-on-1
Not Required
Not Required
a
c
COPYRIGHT © 1996 CANON INC. CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
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3. OPERATIONS AND TIMING
Table 3-303
