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Canon MF8580Cdw Service Manual page 320

Mf8500/mf8200 series
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Manual - 750 pages
User manual - 750 pages
Getting started - 292 pages

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5
Adjustment > Adjustment at Parts Replacement > Document Exposure / Feed System > After replacing reader units
4) 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 > DF-WLVL1 (White level adjustment [copyboard
scanning])
• COPIER > FUNCTION > CCD > DF-WLVL3 (White level adjustment BW [copyboard
scanning])
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.
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)
5) Enter the value on the label packed with the part in the following service mode item.
• 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)
• COPIER> ADJUST> CCD> 50-RG (Color displacement correction value between RG
in the vertical scanning direction (50%))
• COPIER> ADJUST> CCD>50-GB (Color displacement correction value between GB
in the vertical scanning direction (50%))
• COPIER> ADJUST> CCD>100-RG (Color displacement correction value between RG
in the vertical scanning direction (100%))
• COPIER> ADJUST> CCD>100-GB (Color displacement correction value between GB
in the vertical scanning direction (100%))
• COPIER>ADJUST>PASCAL>OFST-P-Y (Adjustment of test chart reading density)
• COPIER>ADJUST>PASCAL> OFST-P-M (Adjustment of test chart reading density)
• COPIER>ADJUST>PASCAL> OFST-P-C (Adjustment of test chart reading density)
• COPIER>ADJUST>PASCAL> OFST-P-K (Adjustment of test chart reading density)
5
Adjustment > Adjustment at Parts Replacement > Document Exposure / Feed System > After replacing reader units
6) Read the image and execute the adjustment with the following service mode.
• FEEDER > ADJUST > DOCST (Image reading start position adjustment at ADF
reading)
• FEEDER > ADJUST > LA-SPEED (Original feed speed adjustment)
5-4
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