Canon GP160DF - Page 80

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4 IMAGE PROCESSING SYSTEM
4-6
Figure 4-302
Figure 4-303
White reference plate
Scanning lamp
Mirror 1
Mirror 2
Mirror 3
Lens
CCD
Mirror 4
Copy board glass
CCD output
Document density
White reference plate
Before correction
Target value
Measured data
After correction
Related service mode
Shading automatic adjustment:
Control panel RMSW ON, Service mode> TEST MODE>2:CCD (Numeric key 2 >
Numeric key 8 >