Canon imageRUNNER ADVANCE C5051 Series Service Manual page 895

■ IMG-DEV
COPIER > OPTION > IMG-DEV
DRM-IDL Set first idle rotn time in HH Ev
Lv.1 Details To set the idle rotation time to be performed first time for the day in
an HH (high temperature and high humidity) environment.
Use case When coarseness occurs on the image first time for the day
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution When ON is set, startup takes time.
Display/adj/set range 0 to 2
0: OFF, 1: ON (HH environment only), 2: ON (all environments)
Default value 0
DEVL-VTH Set toner ejectn image duty threshold VL
Lv.2 Details To set the threshold value of the image duty, which is the condition to
perform the low duty toner ejection sequence.
As the value is larger, coarseness is decreased, but productivity is
lowered and toner consumption is increased.
As the value is smaller, productivity and toner consumption are
improved, but coarseness is worsened.
Use case While printing low duty (low image ratio) images,
- When graininess (coarseness) occurs
- When low productivity or high toner consumption is pointed out by
the user
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution Do not use this when the machine is operating correctly.
Display/adj/set range -1 to 2
-1: -1%, 0: 0%, 1: +1%, 2: +2%
Default value 0
Related service mode COPIER> OPTION> IMG-DEV> DEVL-PTH
INTPPR-1 [Not used]
DVTGT-K Adj of ATR Sensor (Bk) gain value offset
Lv.2 Details To actually correct the TD ratio by setting the offset of the gain value
of ATR Sensor (Bk).
When the value is increased (TD ratio is increased), uneven density
at the screw interval is alleviated, but fogging may occur.
Since the target value of TD ratio changes when changing the value,
it is necessary to stable TD ratio by forcibly executing toner ejection
sequence.
The value is returned to 0 at the replacement of the Process Unit.
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution After the value is changed, execute the toner ejection sequence.
Display/adj/set range -3 to 3
Default value 0
8
Service Mode > COPIER > OPTION > IMG-DEV
8 Service Mode > COPIER > OPTION > IMG-DEV
COPIER > OPTION > IMG-DEV
DVTGT-Y Adj of ATR Sensor (Y) gain value offset
Lv.2 Details To actually correct the TD ratio by setting the offset of the gain value
of ATR Sensor (Y).
When the value is increased (TD ratio is increased), uneven density
at the screw interval is alleviated, but fogging may occur.
Since the target value of TD ratio changes when changing the value,
it is necessary to stable TD ratio by forcibly executing toner ejection
sequence.
The value is returned to 0 at the replacement of the Process Unit.
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution After the value is changed, execute the toner ejection sequence.
Display/adj/set range -3 to 3
Default value 0
DVTGT-M Adj of ATR Sensor (M) gain value offset
Lv.2 Details To actually correct the TD ratio by setting the offset of the gain value
of ATR Sensor (M).
When the value is increased (TD ratio is increased), uneven density
at the screw interval is alleviated, but fogging may occur.
Since the target value of TD ratio changes when changing the value,
it is necessary to stable TD ratio by forcibly executing toner ejection
sequence.
The value is returned to 0 at the replacement of the Process Unit.
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution After the value is changed, execute the toner ejection sequence.
Display/adj/set range -3 to 3
Default value 0
DVTGT-C Adj of ATR Sensor (C) gain value offset
Lv.2 Details To actually correct the TD ratio by setting the offset of the gain value
of ATR Sensor (C).
When the value is increased (TD ratio is increased), uneven density
at the screw interval is alleviated, but fogging may occur.
Since the target value of TD ratio changes when changing the value,
it is necessary to stable TD ratio by forcibly executing toner ejection
sequence.
The value is returned to 0 at the replacement of the Process Unit.
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution After the value is changed, execute the toner ejection sequence.
Display/adj/set range -3 to 3
Default value 0
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