Canon imageRUNNER 2525 Series Service Manual page 268

Execute this after replacing the CCD unit.
● #SCAN> READER> FUNCTION> CCD> DF-WLVL1
ADF white level adjustment (platen board cover scan/stream reading scan)
1. Place a paper that users normally use on the copyboard glass and execute the following item;
SCAN > READER > FUNCTION > CCD > DFWLVL1
: Read the white level in BOOK mode. (Check the transparency of the glass for BOOK mode.)
2. Set a paper that users normally use and execute the following item;
SCAN > READER > FUNCTION > CCD > DFWLVL2
: Read the white level in DF mode (stream reading).
(Check the transparency of the glass for stream reading.)
(Read the both sides of chart.)
Reading the face: Calculate DFTAR-R
NOTE:
Be sure to execute these two items (DF-WLVL1/DF-WLVL2) simultaneously.
● #SCAN> READER> FUNCTION> CCD> DF-WLVL2
ADF white level adjustment (platen board cover scan/stream reading scan)
1. Place a paper that users normally use on the copyboard glass and execute the following item;
SCAN > READER > FUNCTION > CCD > DFWLVL1
: Read the white level in BOOK mode. (Check the transparency of the glass for BOOK mode.)
2. Set a paper that users normally use and execute the following item;
SCAN > READER > FUNCTION > CCD > DFWLVL2
: Read the white level in DF mode (stream reading).
(Check the transparency of the glass for stream reading.)
(Read the both sides of chart.)
Reading the face: Calculate DFTAR-R
NOTE:
Be sure to execute these two items (DF-WLVL1/DF-WLVL2) simultaneously.
● #SCAN> READER> FUNCTION> CCD> DF-WLVL3
ADF white level adjustment (platen board cover scan)
NOTE:
Scan a blank sheet on the platen and adjust the white level.
● #SCAN> READER> FUNCTION> CCD> DF-WLVL4
ADF white level adjustment. (DF scan)
NOTE:
Scan a blank sheet in stream reading mode and adjust the white. level.
● #SCAN> READER> FUNCTION> CLEAR> R-CON
Clearing of the backup area for the reader in the main controller.
Clear the backup area for the reader in the main controller.
● #SCAN> READER> FUNCTION> MISC-R> SCANLAMP
The test checks to see if the scanning lamp is on or not.
Execute the when replacing the scanning lamp.
● #SCAN> READER> OPTION> BODY> SENS-CNF
Setting of the document detection sensor placement.
The setting of original detection size is selected between AB and inch configuration in the book mode.
0: AB configuration
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8. Service Mode