Technical information

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CHAPTER 2 NEW FUNCTIONS
COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001
2.4 IP Memory Board
The machine uses four photosensitive drums, requiring temporary retention of image sig-
nals in image memory.
The image data (YMC signals and text signals) from the scanner is sent to the IP memory
board and stored in image memory. It is then read in response to the read signal prepared
with reference to the ITOP signal. The UCR processing block generates the K signal and
sends it to the image processor PCB.
F02-204-01
2.5 Direct Mapping
In this block, the RGB signals (after color space correction) is corrected by a LUT to im-
prove the reproduction of flesh tone and the blue of the sky and the green of leaves.
Y.M.C.K.
Image processor PCB
UCR processing
Output blanking
Image memory
Ratio (enlargement)
IP memory board
YMC/text signals