Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 435

COPIER> ADJUST> BLANK
BLANK-B Adjustment of trailing edge margin
Lv.1 Details To adjust the margin on the trailing edge of paper.
As the value is incremented by 1, the margin is increased toward the
center of the paper by 1 pixel (0.0423 mm).
Use case • When reducing the margin upon user's request
• When enlarging the margin for transfer separation/fixing separation
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 0 to 1000
Unit 1 pixel
Appropriate target value 29
Default value 29
BLANK-T2 Adj of leading edge margin: Thin paper
Lv.2 Details To adjust the margin on the leading edge of thin paper.
As the value is incremented by 1, the margin is increased toward the
center of the paper by 1 pixel (0.0423 mm).
Use case • When reducing the margin upon user's request
• When enlarging the margin for transfer separation/fixing separation
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 0 to 1000
Unit 1 pixel
Default value 0
BLANK-B2 Adj of trailing edge margin: Thin paper
Lv.2 Details To adjust the margin on the trailing edge of thin paper.
As the value is incremented by 1, the margin is increased toward the
center of the paper by 1 pixel (0.0423 mm).
Use case • When reducing the margin upon user's request
• When enlarging the margin for transfer separation/fixing separation
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 0 to 1000
Unit 1 pixel
Default value 0
■ V-CONT
VCONT-K
Lv.2 Details
Use case
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and
Caution
Display/adj/set range
Unit
Default value
Related service mode
Related user mode
T-5-35
COPIER> ADJUST> V-CONT
Adj of Bk color contrast potential
To adjust the offset of the contrast potential Vcont for Bk.
As the value is incremented by 1, the contrast potential changes by
10V.
+: Image becomes darker.
-: Image becomes lighter.
When the value is too large, paper winds around the Fixing Belt or a
transfer failure occurs.
In principle, the adjustment of the density should be performed in
Adjustment/Maintenance> Adjust Image Quality> Density Adjustment
Mode.
When adjusting the density of D-max control in the case that an
image density failure occurs
press OK key.
2) Turn OFF/ON the main power switch.
3) Execute COPIER> FUNCTION> DPC> DPC
4) Execute Auto Adjust Gradation > Full Adjust.
Do not use this when the machine is operating correctly.
-20 to 20
10 V
0
COPIER> ADJUST> V-CONT> VCONT-Y, VCONT-M, VCONT-C
COPIER> FUNCTION> DPC> DPC
Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation > Full Adjust
Adjustment/Maintenance> Adjust Image Quality> Density Adjustment
Mode
5
5-207