Adjustment When Replacing The Parts; Original Exposure - Canon imageRUNNER 2525 Series Service Manual

Adjustment when Replacing the Parts

Original Exposure

■ Action to Take after Replacing the CIS Unit
After replacing the CIS unit, make the following adjustments:
● CIS white level automatic adjustment
1. Enter the service mode.
• SCAN > READER > FUNCTION > CCD > CCD-ADJ
2. Click the [OK] button.
When this step is complete, the contact sensor output is adjusted and parameters are set automatically.
3. After completion of automatic adjustment, "OK" is displayed.
● DF white level adjustment (platen board cover scan/stream reading scan)
CAUTION:
Make this adjustment when the DADF is installed.
1. Place a sheet of paper that the user usually uses on the platen glass, enter the service mode, and then select SCAN
> READER > FUNCTION > CCD > DFWLVL1.
Read the white level in the BOOK mode. (Check the transparency of the glass for BOOK mode.)
2. Place a sheet of paper that the user usually uses on the DF, enter the service mode, and then select SCAN > READER
> FUNCTION > CCD > DF-WLVL2.
Read the white level in the DF mode (stream reading). (Check the transparency of the glass for stream reading.)(Read both
sides of the chart.)
3. Place a sheet of paper that the user usually uses on the platen glass, enter the service mode, and then select SCAN
> READER > FUNCTION > CCD > DFWLVL3.
Read the white level in the BOOK mode. (Check the transparency of the glass for BOOK mode.)
4. Place a sheet of paper that the user usually uses on the DF, enter the service mode, and then select SCAN > READER
> FUNCTION > CCD > DF-WLVL4.
Read the white level in the DF mode (stream reading). (Check the transparency of the glass for stream reading.)(Read both
sides of the chart.)
■ Action to Take after Replacing the Platen Glass
Enter the service mode, and then select the following:
CAUTION:
Be sure to make the white plate data adjustment before ADF white level adjustment.
1. Enter the value indicated on the platen glass in the following service mode:
• SCAN > READER > ADJUST > CCD > W-PLT-X/Y/Z (Input of standard white plate data)
W-PLT-Z
W-PLT-X
W-PLT-Y
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5. Adjustment