Konica Minolta bizhub C658 Service Manual page 922

bizhub C658/C558/C458/C368/C308/C258
Sample
5.16.7 CCD Calibration
(1) Use
• To set whether to use the calibration adjustment value set prior to the shipping. To display the current calibration adjustment value.
• When CCD board (front side)/CIS (back side: only when dual scan document feeder is mounted) has been replaced, set to "OFF."
After replacing the CCD board or CIS, the default generic value needs to be set since the calibration value set for each unit changes to
control the differences in reading performance on each scanner (CCD).
• The original calibration adjustment value can be disabled to address image failure and other problems caused by individual CCD
performance difference.
• When dual scan document feeder is mounted, this setting can be made separately for [Front Side] and [Back Side].
(2) Default setting
• ON
I ADJUSTMENT/SETTING > 5. SERVICE MODE
I-152