Canon imageRUNNER ADVANCE 4551i Service Manual page 681

COPIER > ADJUST > CCD
DFTBK-G 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Related Service Mode
Amount of Change per
Unit
DFTBK-B 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Related Service Mode
Amount of Change per
Unit
DFTBK-R 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Related Service Mode
Amount of Change per
Unit
Shading target VL (G) entry: back side
To enter the shading target value of Green of the Scanner Unit (for back side) at stream reading.
When replacing the Reader Controller PCB, enter the value of service label.
When replacing the Copyboard Glass/Scanner Unit (for back side), execute DF-WLVL1 and DF-
WLVL2 and write the value which is automatically set in the service label.
The setting of this item is enabled only when the DADF (1-path model) is installed.
- When replacing the Reader Controller PCB/clearing RAM data
- When replacing the Scanner Unit (for back side)
1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
When the Copyboard or DADF (reverse model) is installed, the setting of this item is disabled.
700 to 1400
1136
COPIER> FUNCTION> CCD> DF-WLVL1/2
1
Shading target VL (B) entry: back side
To enter the shading target value of Blue of the Scanner Unit (for back side) at stream reading.
When replacing the Reader Controller PCB, enter the value of service label.
When replacing the Copyboard Glass/Scanner Unit (for back side), execute DF-WLVL1 and DF-
WLVL2 and write the value which is automatically set in the service label.
The setting of this item is enabled only when the DADF (1-path model) is installed.
- When replacing the Reader Controller PCB/clearing RAM data
- When replacing the Scanner Unit (for back side)
1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
When the Copyboard or DADF (reverse model) is installed, the setting of this item is disabled.
700 to 1400
1126
COPIER> FUNCTION> CCD> DF-WLVL1/2
1
Shading target VL (R) entry: back side
To enter the shading target value of Red of the Scanner Unit (for back side) at stream reading.
When replacing the Reader Controller PCB, enter the value of service label.
When replacing the Copyboard Glass/Scanner Unit (for back side), execute DF-WLVL1 and DF-
WLVL2 and write the value which is automatically set in the service label.
The setting of this item is enabled only when the DADF (1-path model) is installed.
- When replacing the Reader Controller PCB/clearing RAM data
- When replacing the Scanner Unit (for back side)
1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
When the Copyboard or DADF (reverse model) is installed, the setting of this item is disabled.
700 to 1400
1156
COPIER> FUNCTION> CCD> DF-WLVL1/2
1
668
8. Service Mode