Canon 1000 Service Manual page 103

r. Color Editing
This block executes the following color editing:
• Gradation
• Color filter
• Base color
• Coloring
• Special effect
• Text composition
Except in "text composition," bit map data is generated based on the mode data (pattern and color of
gradation or area) selected on the control panel and integrated with image A, which has been read by the
scanner.
In the case of "text composition," image A, which has been read by the scanner, is converted into binary
data by the ED Board A1; then, bit map data is generated based on the area data. The bit map data is
temporarily stored in the bit map memory and integrated with image B, which has been read next.
COPYRIGHT © 2001 CANON INC.
Control panel/editor
Mode data
ED Board A1
Bit map data generation
Bit map memory
Color data (e.g., color palette) is stored.
Control panel/editor
Area data
Bit map data generation
Text data
Bit map memory
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Image from scanner
Image processor PCB
Image A
Color data
Color editing
Figure 3-341
Image from scanner
Image A Image B
Image processor PCB
R,G,B
ED Board A1
Color conversion
Converted into binary data
to generate text data
Color editing
Figure 3-342
3. OPERATION AND TIMING
Y,M,C,Bk
R,G,B
3-59