Canon imageRUNNER ADVANCE C350 series Service Manual page 913

■ IMG-DEV
COPIER> OPTION> IMG-DEV
AUTO-DH ON/OFF of proc auto adj at warm-up rotn
Lv.1 Details To set ON/OFF of process auto adjustment (D-max/D-half control) at
warm-up rotation.
Use case When density varies at the time of making a large number of outputs
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 0 to 2
0: OFF, 1: ON (HH environment only), 2: ON (all environments)
Default value 1
DV-RT-LG ON/OFF of Drum Unit first idle rotation
Lv.2 Details To set ON/OFF of idle rotation of the Drum Unit to be performed first
time for the day.
Although idle rotation is not performed in the normal operation to
extend the life of Drum Unit, execute it for 60 seconds when any
problem (image failure, etc.) occurs.
Use case When an image failure occurs
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 0 to 1
0: OFF, 1: ON (60 seconds)
Default value 0
ADJ-VPP Adj of dev AC bias Vpp: plain/rcycl 1/2
Lv.2 Details To adjust Vpp of the developing AC bias when printing plain paper 1,
2/recycled paper 1, 2 (which paper width is A4 or larger).
As the value is incremented by 1, Vpp changes by 100 V.
Decrease the value when fogging/bias leak/high density occurs.
Use case When an image failure (carrier adherence, ring marks, etc.) occurs
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Execute Auto Adjust Gradation > Full Adjust.
Caution If the value is too small, the contrast becomes weak.
Display/adj/set range 0 to 5
0: +/-0 V, 1: -100 V, 2: -200 V, 3: -300 V, 4: -400 V, 5: -500 V
Unit 100 V
Appropriate target value 0
Default value 0
Related service mode COPIER> OPTION> IMG-DEV> ADJ-VPPN, ADJ-VPP3
8
Service Mode > COPIER > OPTION > IMG-DEV
8 Service Mode > COPIER > OPTION > IMG-DEV
COPIER> OPTION> IMG-DEV
DMX-OF-Y Adj of Y-color D-max target density
Lv.2 Details To adjust the target density of D-max control in case that density of
solid area on Y-color image is not appropriate even performing auto
gradation adjustment.
Increase the value when the density is low and decrease the value
when the density is high.
Use case When density of solid area is not appropriate even performing auto
gradation adjustment
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key), and
then press OK key.
2) Turn OFF/ON the main power switch.
3) Execute full adjustment of auto gradation adjustment.
Display/adj/set range -3 to 3
Default value 0
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation> Full Adjust, Quick Adjust
DMX-OF-M Adj of M-color D-max target density
Lv.2 Details To adjust the target density of D-max control in case that density of
solid area on M-color image is not appropriate even performing auto
gradation adjustment.
Increase the value when the density is low and decrease the value
when the density is high.
Use case When density of solid area is not appropriate even performing auto
gradation adjustment
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key), and
then press OK key.
2) Turn OFF/ON the main power switch.
3) Execute full adjustment of auto gradation adjustment.
Display/adj/set range -3 to 3
Default value 0
Related UI menu Adjustment/Maintenance> Adjust Image Quality> Auto Adjust
Gradation> Full Adjust, Quick Adjust
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