Canon iR8500 Service Manual page 703

SERVICE MODE
COPIER>ADJUST
LUT-O-F5
Use it to enter the data for link correction of the first half odd-numbered
pixels of the CCD. 0 to 1023
LUT-E-F1
Use it to enter the data for link correction of the first half even-numbered
pixels of the CCD. 0 to 1023
LUT-E-F2
Use it to enter the data for link correction of the first half even-numbered
pixels of the CCD. 0 to 1023
LUT-E-F3
Use it to enter the data for link correction of the first half even-numbered
pixels of the CCD. 0 to 1023
LUT-E-F4
Use it to enter the data for link correction of the first half even-numbered
pixels of the CCD. 0 to 1023
LUT-E-F5
Use it to enter the data for link correction of the first half even-numbered
pixels of the CCD. 0 to 1023
<CCD> (iR7200)
Use it to make/shading-related adjustments.
If faulty images are generated after executing of COPIER>FUNCTION>CCD>CCD-
ADJ, enter the settings indicated on the service label.
SH-TRGT
Use it to enter the white level target value for shading correction. 130 to
255
SH-RATIO
Use it to enter the data on the white level ratio (standard white paper and
standard white plate) for shading correction. 150 to 300
EGGN-ST
Use it to enter an adjustment value for the edge gain correction start posi-
tion for the CCD. 100 to 250
EGGN-END
Use it to enter an adjustment value for the edge gain correction end position
for the CCD. 100 to 250
S-60
COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001