Canon iR2200 Service Handbook page 191

SHDG-POS
Use it to enter data for changing the position of measurement on the stan-
dard white plate used for shading correction.
Range of 240 to 320 (a multiple of 8 causes a shift of about 0.17 mm)
adjustment
Caution • Execute this mode if a white line still appears after executing
COPIER>FUNCTION>CCD>SH-PS-ST or after cleaning the scanner
mechanisms.
• After entering a setting and executing COPIER>FUNCTION>CCD>SH-
PS-ST, check to make sure that 'OK' is indicted. Thereafter, make a test
print to be user that no white line is found in its halftone area.
Shading
position
Vertical
size plate
Standard white plate
Higher setting
F05-501-03
CHAPTER 5 SERVICE MODE
COPIER>FUNCTION>CCD
Copyboard glass
Lower setting
5-63