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Service Mode > COPIER > OPTION > IMG-DEV
Service Mode > COPIER > OPTION > IMG-DEV
COPIER > OPTION > IMG-MCON
PSCL-TBL
Set auto gradation adjustment parameters
Lv.1 Details
To set the parameters of auto gradation adjustment (full adjustment).
When 0 is set, the parameters are optimized for GF-C081 (81 g/m2)
standard paper (Canon-recommended paper).
When 1 is set, the parameters are optimized for 64 g/m2 paper.
Use case
When paper arc occurs on 64 g/m2 paper at auto gradation
adjustment
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Execute full adjustment of auto gradation adjustment.
Caution
Be sure to execute auto gradation adjustment (full adjustment) after
the setting is done.
Display/adj/set range
0 to 3
0: Standard paper (81 g/m2), 1: Plain paper (other than 81 g/m2), 2 to
3: Not used
Default value
0
BGE-OFS
Fine adj of background adjustment level
Lv.2 Details
To make a fine adjustment of the background adjustment (background
removal) level which can be set manually.
Break up the adjustment values into smaller ones when user does not
satisfy with the default adjustment values.
Use case
When color fogging occurs on the output image when copying
yellowed blank paper as an original
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and press
OK key.
Caution
Since the background color is set to be washed out with this mode,
not only the background of yellowed blank paper, but also other light
colors (light blue, etc.) are washed out.
Display/adj/set range
-15 to 15
Default value
0
T-8-59
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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