Canon MF8580Cdw Service Manual page 358

COPIER > ADJUST > CCD
DFTAR-G Adjustment of shading target value (G) at ADF reading
Details To adjust the shading target value of Green at ADF
reading.
When replacing the Main Controller PCB, enter the value
of service label.
After executing COPIER> FUNCTION> CCD> DF-
WLVL1, DF-WLVL2, write the value which is automatically
set in the service label.
Use case • When replacing the ADF/Reader Unit
• When replacing the CIS Unit
• When replacing the Reader Upper Cover Unit
• When replacing the Main Controller PCB
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 128 to 384
Default value 309
Related service mode COPIER> DISPLAY> CCD> TARGET-G
COPIER> FUNCTION> CCD> DF-WLVL1, DF-WLVL2
DFTAR-B Adjustment of shading target value (B) at ADF reading
Details To adjust the shading target value of Blue at ADF reading.
When replacing the Main Controller PCB, enter the value
of service label.
After executing COPIER> FUNCTION> CCD> DF-
WLVL1, DF-WLVL2, write the value which is automatically
set in the service label.
Use case • When replacing the ADF/Reader Unit
• When replacing the CIS Unit
• When replacing the Reader Upper Cover Unit
• When replacing the Main Controller PCB
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 128 to 384
Default value 307
Related service mode COPIER> DISPLAY> CCD> TARGET-B
COPIER> FUNCTION> CCD> DF-WLVL1, DF-WLVL2
8
Service Mode > COPIER > ADJUST > CCD
M82 M85
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8 Service Mode > COPIER > ADJUST > CCD
COPIER > ADJUST > CCD
DFTAR-BW Adjustment of shading target value (B&W) at ADF reading
Details When replacing the Main Controller PCB, enter the value
of service label.
After executing COPIER> FUNCTION> CCD> DF-
WLVL3, DF-WLVL4, write the value which is automatically
set in the service label.
Use case • When replacing the ADF/Reader Unit
• When replacing the CIS Unit
• When replacing the Reader Upper Cover Unit
• When replacing the Main Controller PCB
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 128 to 384
Default value 315
Related service mode COPIER> DISPLAY> CCD> TARGETBW
COPIER> FUNCTION> CCD> DF-WLVL3, DF-WLVL4
50-RG Color displacement (R and G lines) correction value in the
vertical scanning direction (50%)
Details To correct the color displacement (R and G lines) in the
vertical scanning direction at 50% copyboard reading.
When replacing the Main Controller PCB, enter the value
of service label.
Use case When replacing the Main Controller PCB
Adj/set/operate method Enter the setting value (switch negative/positive by -/+
key) and press OK key.
Caution After the setting value is changed, write the changed
value in the service label.
Display/adj/set range -512 to 512
Unit 0.001 line
Default value -333
Supplement/memo 50% reading: 300 dpi in horizontal scanning direction x
600 dpi in vertical scanning direction reading mode.
50-GB Color displacement (G and B lines) correction value in the
vertical scanning direction (50%)
Details To correct the color displacement (G and B lines) in the
vertical scanning direction at 50% copyboard reading.
When replacing the Main Controller PCB, enter the value
of service label.
Use case When replacing the Main Controller PCB
Adj/set/operate method Enter the setting value (switch negative/positive by -/+
key) and press OK key.
Caution After the setting value is changed, write the changed
value in the service label.
Display/adj/set range -512 to 512
Unit 0.001 line
Default value 333
Supplement/memo 50% reading: 300 dpi in horizontal scanning direction x
600 dpi in vertical scanning direction reading mode.
8-10
M82 M85
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8-10