Canon MF8580Cdw Service Manual page 244

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Disassembly/Assembly > Document exposure/feeder system > Removing the Reader Unit Upper Cover > After Replacing the Reader Upper Cover Unit
■ After Replacing the Reader Upper Cover Unit
1) Enter the setting value of the Standard White Plate.
• COPIER > ADJUST > CCD > W-PLT-X (X signal data for the standard white plate)
• COPIER > ADJUST > CCD > W-PLT-Y (Y signal data for the standard white plate)
• COPIER > ADJUST > CCD > W-PLT-Z (Z signal data for the standard white plate)
MEMO
The value of W-PLT-X: The first four digits of the value on the label
The value of W-PLT-Y: The four digits in the middle of the value on the label
The value of W-PLT-Z: The last four digits of the value on the label
2) After executing the CCD reading position adjustment with the following service mdoe 1,
check the auto setting value with the following service mode 2 and write the value in the
service label.
1. COPIER> FUNCTION> INSTALL> STRD-POS (reading position adjustment auto
execution)
2. COPIER> ADJUST> ADJ-XY> STRD-POS (reading position adjustment value
reference)
4 Disassembly/Assembly > Document exposure/feeder system > Removing the Reader Unit Upper Cover > After Replacing the Reader Upper Cover Unit
3) Set a blank paper on the Copyboard Glass, and execute the white level adjustment with
the following service mode 1. Then, check the auto setting value with the following service
mode 2 and write the value in the service label.
1. White level adjustment
• COPIER > FUNCTION > CCD > CL-AGC (Color AGC adjustment)
• COPIER > FUNCTION > CCD > BW-AGC (B&W AGC adjustment)
Then, set a blank paper on the DF, and execute the following service mode.
• COPIER > FUNCTION > CCD > DF-WLVL2 (White level adjustment [DF scanning])
• COPIER > FUNCTION > CCD > DF-WLVL4 (White level adjustment BW [DF
scanning])
If it fails, turn OFF/ON the power and execute the operation again.
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2. Checking the setting value
• COPIER> ADJUST> CCD> DFTAR-R (RED shading target value when using DF)
• COPIER> ADJUST> CCD> DFTAR-G (GREEN shading target value when using DF)
• COPIER> ADJUST> CCD> DFTAR-B (BLUE shading target value when using DF)
• COPIER> ADJUST> CCD> DFTAR-BW (Monochrome shading target value when
using DF)
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