Density Processing; Enlargement/Reduction, Shift, And Edit Processing - Canon CLC 1120 Service Manual

L. Density Processing
The correction curve used for density processing is varied according to the following parameters:
a. Setting of the Copy Density key on the control panel
b. Color balance selected on the control panel
c. Color balance selected in service mode (ADJUST>COLOR>ADJ-Y, ADJ-M, ADJ-C,
ADJ-K)
d. Light area offset setting selected in service mode (ADJUST>COLOR>OFST-Y, OFST-
M, OFST-C, OFST-K)
e. Text/photo mode selection
In keeping with items a through c above, a "dark" curve or "light" curve shown in Figure 4-
11 is selected. For mono black character mode, however, the curve will be as shown in Figure 4-412.
Copy density
Dark
Figure 4-411
M. Enlargement/Reduction, Shift, and Edit Processing
When wiring to and reading from memory, image data is processed for the following:
Volume 4>Chapter 4>IV-N "Enlargement/Reduction, Shift, and Edit Processing"
1. Enlargement/Reduction
a. Horizontal reproduction ratio (main scanning direction)
b. Vertical reproduction ratio (sub scanning direction)
2. Density Processing for Enlargement Correction
COPYRIGHT © 1999 CANON INC.
Light
Original density
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4 IMAGE PROCESSING SYSTEM
Copy density
Bk mono
character
mode
Figure 4-412
Original density
4-13