Canon imageRUNNER ADVANCE C350 series Service Manual page 844

COPIER> ADJUST> DENS
P-TG-K Adj of ATR control Bk-color target value
Lv.2 Details To adjust the offset of the ATR patch target value for Bk.
When the target value determined upon initialization is changed,
density and the TD ratio are also changed.
Density is increased when the value is increased, and fogging/
scattering is alleviated when the value is decreased.
Use case When density failures, fogging, etc. occur
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
2) Make 10 prints of approx. 10% image ratio (ex. COPIER> TEST>
PG> TYPE: 16) 20 times.
3) 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 -4 to 4
Default value 0
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation> Full Adjust
DMAX-K Adj D-max ctrl Bk-color dens target VL
Lv.2 Details An image failure might occur because the density target value of the
D-max control becomes out of the setting table due to environment
change.
Adjust the offset of the black density target value of D-max control.
Use case When any image failure occurs due to environment change
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Caution Do not use this at the normal service.
Display/adj/set range -8 to 8
Default value 0
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation> Full Adjust, Quick Adjust
HLMT-PTK Adj ATR Sensor (Bk) dens crrct upr limit
Lv.2 Details To adjust the upper limit of the target density correction (lower limit of
TD ratio) of the ATR Sensor (Bk).
As the value is incremented by 1, the lower limit of TD ratio is
decreased by 0.5 %.
When the value is increased, fogging/scattering is alleviated.
Use case When an image failure (density failure, fogging, carrier adherence,
and scattering, etc.) occurs
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.
Caution Take necessary action in accordance with the instructions from the
Quality Support Division.
Display/adj/set range -5 to 5
Unit 0.5 %
Default value 0
8
Service Mode > COPIER > ADJUST > DENS
8 Service Mode > COPIER > ADJUST > DENS
COPIER> ADJUST> DENS
LLMT-PTK Adj ATR Sensor (Bk) dens crrct low limit
Lv.2 Details To adjust the lower limit of the target density correction (upper limit of
TD ratio) of the ATR Sensor (Bk).
As the value is decremented by 1, the lower limit of TD ratio is
increased by 0.5 %.
When the value is decreased, density is increased, but fogging/
scattering occurs.
Use case When an image failure (density failure, fogging, carrier adherence,
and scattering, etc.) occurs
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.
Caution Take necessary action in accordance with the instructions from the
Quality Support Division.
Display/adj/set range -5 to 5
Unit 0.5 %
Default value 0
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