Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 440

COPIER> ADJUST> V-CONT
VBACK3-Y Adj Y fogging removal potential: 1/3SPD
Lv.2 Details To adjust the fogging removal potential Vback for Y at 1/3 speed.
Use case When any image failure occurs at 1/3 speed
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.
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 10 V
Default value 0
Related service mode COPIER> ADJUST> V-CONT> VBACK3-M, VBACK3-C, VBACK3-K
Related user mode Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation > Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Correct Color Cast
VBACK3-M Adj M fogging removal potential: 1/3SPD
Lv.2 Details To adjust the fogging removal potential Vback for M at 1/3 speed.
Use case When any image failure occurs at 1/3 speed
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.
5
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 10 V
Default value 0
Related service mode COPIER> ADJUST> V-CONT> VBACK3-Y, VBACK3-C, VBACK3-K
Related user mode Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation > Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Correct Color Cast
5-212
+: Fogging is alleviated, but white/black spots are increased
due to carrier adherence.
-: White/black spots are alleviated, but fogging is increased.
+: Fogging is alleviated, but white/black spots are increased
due to carrier adherence.
-: White/black spots are alleviated, but fogging is increased.
COPIER> ADJUST> V-CONT
VBACK3-C Adj C fogging removal potential: 1/3SPD
Lv.2 Details To adjust the fogging removal potential Vback for C at 1/3 speed.
+: 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 at 1/3 speed
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.
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 10 V
Default value 0
Related service mode COPIER> ADJUST> V-CONT> VBACK3-Y, VBACK3-M, VBACK3-K
Related user mode Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation > Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Correct Color Cast
VBACK3-K Adj Bk fogging removal potential: 1/3SPD
Lv.2 Details To adjust the fogging removal potential Vback for Bk at 1/3 speed.
+: 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 at 1/3 speed
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.
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 10 V
Default value 0
Related service mode COPIER> ADJUST> V-CONT> VBACK3-Y, VBACK3-M, VBACK3-C
Related user mode Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation > Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Correct Color Cast
T-5-36