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Canon MF8580Cdw Service Manual page 232

Mf8500/mf8200 series
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Manual - 750 pages
User manual - 750 pages
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4
Disassembly/Assembly > Document exposure/feeder system > Separating the ADF Unit/Copyboard + Reader Unit > After replacing reader units
■ After replacing ADF units
1) After executing the white level adjustment with the following service mode 1, 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 > DF-WLVL1 (White level adjustment [copyboard
scanning])
• COPIER > FUNCTION > CCD > DF-WLVL2 (White level adjustment [DF scanning])
• COPIER > FUNCTION > CCD > DF-WLVL3 (White level adjustment BW [copyboard
scanning])
• COPIER > FUNCTION > CCD > DF-WLVL4 (White level adjustment BW [DF
scanning])
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)
2) Execute the reading position adjustment with the following service mode.
• COPIER > ADJUST > ADJ-XY > ADJ-Y (Value adjustment for image reading start
position [vertical scanning direction] <X-axis direction>)
• COPIER > ADJUST > ADJ-XY > ADJ-Y-DF (Adjustment of surface horizontal scanning
position in FEEDER mode)
• COPIER > ADJUST > ADJ-XY > ADJ-X-MG (Fine-adjustment of optical motor speed)
3) Execute the original stop position and feed speed adjustment at stream reading.
• FEEDER > ADJUST > DOCST (Image reading start position adjustment at ADF
reading)
• FEEDER > ADJUST > LA-SPEED (Original feed speed adjustment)
4
Disassembly/Assembly > Document exposure/feeder system > Separating the ADF Unit/Copyboard + Reader Unit > After replacing reader units
■ After replacing reader units
1) Release 2 claws [1] and Remove the Scoopup sheet holder [2], Enter the setting value of
the Standard White Plate.
x2
[1]
• 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) Execute the white level adjustment.
• COPIER > FUNCTION > CCD > CL-AGC (Color AGC adjustment)
• COPIER > FUNCTION > CCD > BW-AGC (B&W AGC adjustment)
3) After executing the 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)
4-162
[2]
[1]
F-4-357
4-162

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