Canon imageRUNNER C1335 Series Service Manual page 486

COPIER> ADJUST> V-CONT
VBACK-Y Adj Y-clr fog remov potntl:pln/rcycl 1,2
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
A4 or larger).
As the value is incremented by 1, the fogging removal potential changes
by 10 V.
+: Fogging is alleviated.
-: Coarse image, blanking of image edge, and carrier adherence are
alleviated.
In a low humidity environment (e.g. winter in North America or Japan),
the output may not be changed by increasing the value.
Use case At the occurrence of Y fogging
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and press
Start key.
2) 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> VBACK-M/C/K
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation>
Full Adjust
VBACK-M Adj M-clr fog remov potntl:pln/rcycl 1,2
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
A4 or larger).
As the value is incremented by 1, the fogging removal potential changes
by 10 V.
+: Fogging is alleviated.
-: Coarse image, blanking of image edge, and carrier adherence are
alleviated.
In a low humidity environment (e.g. winter in North America or Japan),
the output may not be changed by increasing the value.
Use case At the occurrence of M fogging
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and press
Start key.
2) 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> VBACK-Y/C/K
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation>
Full Adjust
8
Service Mode > COPIER > ADJUST > V-CONT
8 Service Mode > COPIER > ADJUST > V-CONT
COPIER> ADJUST> V-CONT
VBACK-C Adj C-clr fog remov potntl:pln/rcycl 1,2
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
A4 or larger).
As the value is incremented by 1, the fogging removal potential changes
by 10 V.
+: Fogging is alleviated.
-: Coarse image, blanking of image edge, and carrier adherence are
alleviated.
In a low humidity environment (e.g. winter in North America or Japan),
the output may not be changed by increasing the value.
Use case At the occurrence of C fogging
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and press
Start key.
2) 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> VBACK-Y/M/K
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation>
Full Adjust
VBACK-K Adj Bk-clr fog remov potntl:pln/rcycl1,2
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
A4 or larger).
As the value is incremented by 1, the fogging removal potential changes
by 10 V.
+: Fogging is alleviated.
-: Coarse image, blanking of image edge, and carrier adherence are
alleviated.
In a low humidity environment (e.g. winter in North America or Japan),
the output may not be changed by increasing the value.
Use case At the occurrence of Bk fogging
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and press
Start key.
2) 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> VBACK-Y/M/C
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust Gradation>
Full Adjust
8-47
8-47