Canon imageRUNNER C1335 Series Service Manual page 487

COPIER> ADJUST> V-CONT
VBACK2-Y Adj Y fog remov potntl: pln/rcycl 3, etc
Details To adjust the offset of the fogging removal potential Vback for Y-color
when printing plain paper 1, 2/recycled paper 1, 2 (which paper width is
smaller than A4), plain paper 3, or recycled paper 3.
+: Fogging is alleviated, but white/black spots are increased due to
carrier adherence.
-: White/black spots are alleviated, but fogging is increased.
Use case When any image failure occurs in case of printing plain paper 1, 2/
recycled paper 1, 2 (which paper width is smaller than A4), plain paper 3
or recycled paper 3
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and press
Start key.
2) Turn OFF/ON the main power switch.
3) Execute Auto Adjust Gradation> Full Adjust.
Caution Do not use this when the machine is operating correctly.
Display/adj/set range -5 to 5
Unit 5 V
Default value 0
Related service mode COPIER> ADJUST> V-CONT> VBACK2-M/C/K
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation>
Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Correct Color Cast
VBACK2-M Adj M fog remov potntl: pln/rcycl 3, etc
Details To adjust the offset of the fogging removal potential Vback for M-color
when printing plain paper 1, 2/recycled paper 1, 2 (which paper width is
smaller than A4), plain paper 3, or recycled paper 3.
+: Fogging is alleviated, but white/black spots are increased due to
carrier adherence.
-: White/black spots are alleviated, but fogging is increased.
Use case When any image failure occurs in case of printing plain paper 1, 2/
recycled paper 1, 2 (which paper width is smaller than A4), plain paper 3
or recycled paper 3
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and press
Start key.
2) Turn OFF/ON the main power switch.
3) Execute Auto Adjust Gradation> Full Adjust.
Caution Do not use this when the machine is operating correctly.
Display/adj/set range -5 to 5
Unit 5 V
Default value 0
Related service mode COPIER> ADJUST> V-CONT> VBACK2-Y/C/K
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation>
Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Correct Color Cast
8
Service Mode > COPIER > ADJUST > V-CONT
8 Service Mode > COPIER > ADJUST > V-CONT
COPIER> ADJUST> V-CONT
VBACK2-C Adj C fog remov potntl: pln/rcycl 3, etc
Details To adjust the offset of the fogging removal potential Vback for C-color
when printing plain paper 1, 2/recycled paper 1, 2 (which paper width is
smaller than A4), plain paper 3, or recycled paper 3.
+: Fogging is alleviated, but white/black spots are increased due to
carrier adherence.
-: White/black spots are alleviated, but fogging is increased.
Use case When any image failure occurs in case of printing plain paper 1, 2/
recycled paper 1, 2 (which paper width is smaller than A4), plain paper 3
or recycled paper 3
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and press
Start key.
2) Turn OFF/ON the main power switch.
3) Execute Auto Adjust Gradation> Full Adjust.
Caution Do not use this when the machine is operating correctly.
Display/adj/set range -5 to 5
Unit 5 V
Default value 0
Related service mode COPIER> ADJUST> V-CONT> VBACK2-Y/M/K
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation>
Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Correct Color Cast
VBACK2-K Adj Bk fog remov potntl:pln/rcycl 3, etc
Details To adjust the offset of the fogging removal potential Vback for Bk-color
when printing plain paper 1, 2/recycled paper 1, 2 (which paper width is
smaller than A4), plain paper 3, or recycled paper 3.
+: Fogging is alleviated, but white/black spots are increased due to
carrier adherence.
-: White/black spots are alleviated, but fogging is increased.
Use case When any image failure occurs in case of printing plain paper 1, 2/
recycled paper 1, 2 (which paper width is smaller than A4), plain paper 3
or recycled paper 3
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and press
Start key.
2) Turn OFF/ON the main power switch.
3) Execute Auto Adjust Gradation> Full Adjust.
Caution Do not use this when the machine is operating correctly.
Display/adj/set range -5 to 5
Unit 5 V
Default value 0
Related service mode COPIER> ADJUST> V-CONT> VBACK2-Y/M/C
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation>
Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Correct Color Cast
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