Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 431

COPIER> ADJUST> DENS
P-TG-M Adj of M color ATR patch dens target VL
Lv.2 Details To adjust the offset of the ATR patch target value for M.
When the target value determined upon initialization is changed, the
T/D ratio is also changed.
Fogging and density increase are alleviated when the value is
smaller, and carrier adherence is alleviated when it is larger.
Use case When density failures, fogging, and carrier adherence, etc. occur
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) Make 50 prints of approx. 10% image ratio (ex. COPIER> TEST>
PG> TYPE: 16) 4 times.
4) Execute Auto Adjust Gradation> Full Adjust.
Caution Execute the Auto Adjust Gradation first to increase the density. If you
adjust the offset of the target value, fogging might get worse.
Display/adj/set range -2 to 2
-2: -0.5%, -1: -1.0%, 0: +/-0%, 1: +0.5%, 2: +1.0%
Default value 0
Related user mode Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation> Full Adjust
P-TG-C Adj of C color ATR patch dens target VL
Lv.2 Details To adjust the offset of the ATR patch target value for C.
When the target value determined upon initialization is changed, the
T/D ratio is also changed.
Fogging and density increase are alleviated when the value is
smaller, and carrier adherence is alleviated when it is larger.
Use case When density failures, fogging, and carrier adherence, etc. occur
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) Make 50 prints of approx. 10% image ratio (ex. COPIER> TEST>
PG> TYPE: 16) 4 times.
4) Execute Auto Adjust Gradation> Full Adjust.
Caution Execute the Auto Adjust Gradation first to increase the density. If you
adjust the offset of the target value, fogging might get worse.
Display/adj/set range -2 to 2
-2: -0.5%, -1: -1.0%, 0: +/-0%, 1: +0.5%, 2: +1.0%
Default value 0
Related user mode Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation> Full Adjust
COPIER> ADJUST> DENS
P-TG-K Adj of Bk color ATR patch dens target VL
Lv.2 Details To adjust the offset of the ATR patch target value for Bk.
When the target value determined upon initialization is changed, the
T/D ratio is also changed.
Fogging and density increase are alleviated when the value is
smaller, and carrier adherence is alleviated when it is larger.
Use case When density failures, fogging, and carrier adherence, etc. occur
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) Make 50 prints of approx. 10% image ratio (ex. COPIER> TEST>
PG> TYPE: 16) 4 times.
4) Execute Auto Adjust Gradation> Full Adjust.
Caution Execute the Auto Adjust Gradation first to increase the density. If you
adjust the offset of the target value, fogging might get worse.
Display/adj/set range -2 to 2
-2: -0.5%, -1: -1.0%, 0: +/-0%, 1: +0.5%, 2: +1.0%
Default value 0
Related user mode Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation> Full Adjust
ALF-C Adjustment of Patch Sensor alpha value
Lv.1 Details To adjust the coefficient alpha value of the Patch Sensor.
The value multiplied by 1000 is displayed on the screen.
When replacing the Patch Sensor/clearing RAM data, enter the value
of service label.
Use case • When clearing RAM data
• When replacing the Patch Sensor
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Display/adj/set range 0 to 2047
Default value 1200
Supplement/memo alpha value: Ratio of P wave and S wave
P-K-Y Adj Y color ptch dens convs coeffct k
Lv.2 Details To adjust the yellow patch density conversion coefficient k value of
the Patch Sensor.
The value multiplied by 100 is displayed on the screen.
Use case When the Patch Sensor fails to read the density
Display/adj/set range 0 to 255
Default value 170
P-K-M Adj M color ptch dens convs coeffct k
Lv.2 Details To adjust the magenta patch density conversion coefficient k value of
the Patch Sensor.
The value multiplied by 100 is displayed on the screen.
Use case When the Patch Sensor fails to read the density
Display/adj/set range 0 to 255
Default value 170
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