COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001SERVICE MODES-76COPIER>FUNCTIONSHDG-POSUse it to enter data for changing the position of measurement on the stan-dard white plate used for shading correction.Range ofadjustment 216 to 296 (a multiple of 8 causes a shift of about 0.189 mm)• If dirt is found on the copyboard glass, execute this mode to avoidthe area when reading the standard white plate.• You must execute the following if you have changed the setting:COPIER>FUNCTION>CCD>SH-PS-ST.F00-204-05SH-PS-STUse it to execute optimum position auto adjustment for the standard whiteplate for shading correction.• You must execute COPIER>FUNCTION>CCD>CCD-ADJ beforeexecuting this move.• Execute this mode if you have replaced the copyboard glass (stan-dard white plate) or a white line is noted in halftone areas.1) Clean the back of the copyboard glass.2) Open the ADF (copyboard cover).3) Select to highlight, and press the OK key.4) The machine executes automatic adjustment (about 10 sec).5) When done, the machine stops automatically indicating the result (OK/NG).• If ‘NG’ is indicated, perform the following, and execute the mode onceagain:a. Is the ADF (copyboard cover) open?b. Is the copyboard glass mounted correctly?c. Is the standard white plate (attached to the copyboard glass) normal?d. Does the scanning lamp go ON?6) The items under COPIER>ADJUST>ADJ-XY and ADJ-S are updated.Record the new settings on the service label.Verticalsize plateStandard white plateLower settingHigher settingCopyboard glassShadingposition
