Canon imageRUNNER ADVANCE C3500 III Series, Service Manual, Page: 609 / 1252

COPIER (Service mode for printer) > ADJUST (Adjustment mode) > CCD
100-GB 1 Img Sensr GB color displace crrct: front
Detail To correct the color displacement between G and B lines in vertical scanning direction due to the
Scanner Unit (for front side).
When replacing the Main Controller PCB/clearing the Reader-related RAM data, enter the value
of service label.
Use Case - When replacing the Main Controller PCB/clearing the Reader -related RAM data
- When replacing the Scanner Unit (for front side)
Adj/Set/Operate Method 1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
Caution After the setting value is changed, write the changed value in the service label.
Display/Adj/Set Range -256 to 256
Unit line
Default Value 0
Amount of Change per
Unit
0.001
DFTAR-R 1 Shading target VL (R) entry: front side
Detail To enter the shading target value of Red of the Scanner Unit (for front side) at stream reading.
When replacing the Main Controller PCB, enter the value of service label.
When replacing the Copyboard Glass/Scanner Unit (for front side), execute DF-WLVL1 and DF-
WLVL2 and write the value which is automatically set in the service label.
The setting is applied to the image on the front side when the DADF (1-path model) is installed,
whereas it is applied to the images on both the front and back sides when the DADF (reverse
model) is installed.
Use Case - When replacing the Main Controller PCB/clearing the Reader-related RAM data
- When replacing the Copyboard Glass/Scanner Unit (for front side)
Adj/Set/Operate Method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Display/Adj/Set Range 1 to 2047
Default Value 1159
Related Service Mode COPIER> FUNCTION> CCD> DF-WLVL1/WLVL2
DFTAR-G 1 Shading target VL (G) entry: front side
Detail To enter the shading target value of Green of the Scanner Unit (for front side) at stream reading.
When replacing the Main Controller PCB, enter the value of service label.
When replacing the Copyboard Glass/Scanner Unit (for front side), execute DF-WLVL1 and DF-
WLVL2 and write the value which is automatically set in the service label.
The setting is applied to the image on the front side when the DADF (1-path model) is installed,
whereas it is applied to the images on both the front and back sides when the DADF (reverse
model) is installed.
Use Case - When replacing the Main Controller PCB/clearing the Reader-related RAM data
- When replacing the Copyboard Glass/Scanner Unit (for front side)
Adj/Set/Operate Method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Display/Adj/Set Range 1 to 2047
Default Value
1189
Related Service Mode
COPIER> FUNCTION> CCD> DF-WLVL1/WLVL2
8. Service Mode
587