Canon ImageRunner 600 Service Manual page 117

Output by scanner clock, pulses
Output by printer clock, pulses
Frame erasing on scanner input data
(by scanner clock pules)
1. Original frame erasing
2. Book frame erasing
3. Hole image erasing
Frame erasing on data after image
memory output
(by printer clock, pulses)
1. Sheet frame erasing
2. Binding
To laser driver
PCB
Converts binary data of
600×600-dpi into 1200×600-dpi.
COPYRIGHT © 1999 CANON INC. CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
Analog image processing block
CCD PCB
Even-numbered/odd-numbered pixels
IP PCB
Shading correction
Line conversion
Even-numbered/odd-numbered line
Enlargement/reduction
Test pattern
(main scanning direction)
Edge emphasis
Density processing
Binary processing (text, text / photo mode)
Binary processing
(print photo mode)
Frame erasing
Frame erasing Rotation
Smoothing Compression /
de-compression
Memory control
Black pixel count
Turned to two channels for laser A and B
Original orientation detection PCB
PDL board
MFC PCB
Enlargement/reduction
(main / sub scanning direction)
Line conversion
Data transfer control
Hard disk
DRAM
Image server
Memory board
4-7