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2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 3 IMAGE PROCESSING SYSTEM
3-6 R
0 pixel
7450 pixels
Edge gain correction plate
Standard white plate (for shading)
Copyboard glass
Reading
glass
Main scanning
direction
3.2.4 Edge Gain Correction (ADF in use)
In stream reading with the ADF in use, the No. 1 mirror base is fixed in position. To
check for changes in the intensity of the scanning lamp, the edge gain correction plate (gray;
mounted at the edge of read position) is read, and a gain that enables the attainment of a
specific intensity is computed.
The result is used to correct the data which otherwise would be affected by changes in the
intensity of light.
F03-302-02
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