5 specifying the reference image quality, Specifying the reference image quality -24 – Konica Minolta bizhub PRESS C1085 User Manual
Page 74
Image Quality Adjustment
6
6-24
bizhub PRESS C1100/C1085
6.2
6.2.5
Specifying the reference image quality
To stabilize the image quality of this machine, specify the reference values (targets) of the entire printing sys-
tem in advance.
Tips
-
If the image quality has not been appropriately adjusted only through daily calibration, you may improve
the situation by carrying out the following tasks.
Carry out the adjustment continuously in sequence. If you have interrupted the adjustment, select "2. Gamma
Automatic Adj." to execute automatic gamma adjustment each time before restarting calibration. For exam-
ple, if you have interrupted the adjustment at the end of the "3. Density Balance Adjustment" processing, se-
lect "2. Gamma Automatic Adj." - "4. Color Density Control" - "5. Calibration by image controller" to restart
the adjustment.
If sufficient adjustment results are not obtained via daily maintenance, also carry out the adjustment in this
order.
For details about the setting procedure, refer to the [HTML User's Guide].
NOTICE
If the setting value is changed in the [Custom Screen], hue may fluctuate significantly. To manage the hue
fluctuation, specify the standard image quality following the procedure if you changed the setting value.
Adjustment
order
Menu item
Description
Tips
1
Screen Pattern
Specify the screen to be used. Select the re-
quired screen from [Screen 1], [Screen 2], and
[Stochastic].
Select [Administrator Setting] - [System Setting] -
[Expert Adjustment] - [Quality Adjustment] - [Cus-
tom Screen] to configure the setting.
[HTML User's
Guide]
2
Gamma Auto-
matic Adj.
Adjusts the curve of the output density against
the input density.
This affects the brightness and contrast.
On the [MACHINE] screen, select [ADJUST-
MENT] - [Execute Adjust Operation] - [Gamma
Automatic Adj.] to execute processing.
[HTML User's
Guide]
3
Density Balance
Adjustment
Corrects the density balance in the crosswise di-
rection to output the even density.
•
On the [MACHINE] screen, select [Adjust-
ment] - [Density Balance Adjustment] - [Den-
sity Balance Chart Output] to print out a chart.
•
On the [MACHINE] screen, select [Adjust-
ment] - [Density Balance Adjustment] - [Den-
sity Balance Data Reg/Del] to register the
adjusted values.
[HTML User's
Guide]
4
Color Density
Control
Basic Setting
Configure a setting so that
this machine executes cali-
bration automatically at peri-
odic intervals.
Color Density
Manual Control
Executes calibration at any
timing in addition to the peri-
odic adjustment.
Each Paper
Type Color Adj.
Adjusts the sensor sensitivity
to fit the paper. This function
is available when using color-
ed paper or enhancing the
sensor accuracy.
On the [MACHINE] screen,
select [ADJUSTMENT] -
[Color Density Control] -
[Each Paper Type Color Adj.]
to adjust the sensitivity.
[HTML User's
Guide]
5
Calibration by
image controller
Executes calibration using Fiery Command
WorkStation.