Adjusting Other Electrical Parts; When Replacing The Ccd Unit - Canon C2050 Service Handbook

3 Adjusting Other Electrical Parts

3.1 When Replacing the CCD Unit

1) Remove the reader unit front lower cover.
2) Record the values (AL-RG, AL-GB; indicated on the label attached to the new CCD
unit) on the service label on the reader unit front lower cover.
3) Mount the new CCD unit.
4) Put the machine back into its initial condition. (Keep the reader unit front lower cover
removed.)
5) Connect the power plug, and turn on the main power switch.
6) Make the following selections in service mode, and enter the values recorded in step 2):
ADJUST>CCD>AL-RG/AL-GB.
The values other than AL-RG and AL-GB (e.g., A-RG, A-GB) are unique to
the reader unit, and need not be entered.
Memo
7) Execute adjustment of the scanning lamp light intensity.
8) Mount the reader unit front lower cover.
9) Make the following selections in service mode: COPIER>ADJUST>PASCAL; then, set
'0' to <P-OFST-Y/M/C/K>.
10) Execute auto gradation correction in user mode.
CHAPTER 2 STANDARDS AND ADJUSTMENTS
2-7R