Canon imageRUNNER C1335 Series Service Manual page 483

COPIER> ADJUST> DENS
P-TG-K Adj of ATR control Bk-color target value
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
Start 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
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
Start 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
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
Start 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
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
Start 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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T-8-17
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