Canon imageRUNNER ADVANCE C3500 III Series Service Manual page 663

COPIER (Service mode for printer) > ADJUST (Adjustment mode) > V-CONT
VBACK2-C 2
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Unit
Default Value
Related Service Mode
Additional Functions
Mode
Amount of Change per
Unit
VBACK2-K 2
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Unit
Default Value
Related Service Mode
Additional Functions
Mode
Amount of Change per
Unit
■ PASCAL
COPIER (Service mode for printer) > ADJUST (Adjustment mode) > PASCAL
OFST-PY2 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Adj C-color fog removal potential:1/2SPD
To adjust the offset of the fogging removal potential Vback for C-color at 1/2 speed.
As the value is changed by 1, the fogging removal potential is changed by 10 V.
+: Fogging is alleviated, but white/black spots are increased.
-: White/black spots are alleviated, but fogging is increased.
When an image failure (fogging, white/black spots due to carrier adherence) occurs at 1/2 speed
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Execute auto gradation adjustment (full adjustment).
Do not use this when the machine is operating correctly.
-5 to 5
V
0
COPIER> ADJUST> V-CONT> VBACK2-Y/M/K
Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation> Full Adjust
10
Adj Bk-clr fog removal potential:1/2SPD
To adjust the offset of the fogging removal potential Vback for Bk-color at 1/2 speed.
As the value is changed by 1, the fogging removal potential is changed by 10 V.
+: Fogging is alleviated, but white/black spots are increased.
-: White/black spots are alleviated, but fogging is increased.
When an image failure (fogging, white/black spots due to carrier adherence) occurs at 1/2 speed
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Execute auto gradation adjustment (full adjustment).
Do not use this when the machine is operating correctly.
-5 to 5
V
0
COPIER> ADJUST> V-CONT> VBACK2-Y/M/C
Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation> Full Adjust
10
Adj Y-color density at test print read
To adjust the offset of Y-color test print reading signal at auto gradation adjustment (full
adjustment).
When replacing the Main Controller PCB/clearing the Reader-related RAM data, enter the value
of the Sub Station service label.
As the value is larger, the image after adjustment gets darker.
When replacing the Main Controller PCB/clearing the Reader -related RAM data
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
After the setting value is changed, write the changed value in the service label.
-128 to 128
According to the adjustment value of the Reader at factory shipment
641
8. Service Mode