Automatic Calibration; Toner Darkness - Lexmark C77x Service Manual

C77/c78 series
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Automatic calibration

The printer performs an automatic calibration under the following conditions.
At power-on
After exit from power saver mode with a significant change of ITU temperature compared to the last
calibration.
Approximately every 500 pages, at the end of a job
After changing a print cartridge
After changing an image transfer unit (ITU)
A manual calibration can be initiated by selecting Color Adjust from the Color Menu.
Resolution
1200 x 1200 dpi (one half printer speed)
4800 CQ (default) (full printer speed)

Toner darkness

Toner darkness settings offer five user-selectable settings to balance print darkness and toner savings. The
higher the setting, the darker the print. The toner darkness default setting is 4. Color level 4 and level 5 are the
same.
The toner darkness setting is available through the operator panel under the Print Quality menu or through the
Lexmark PostScript driver.
Setting
Delta toner from default (mono)
Delta toner from default (color)
Color correction settings
The following correction settings are available:
Auto (default): Applies different color correction to each object on the printed page depending upon the
type of object and how the color for each object is specified.
Off: No color correction is implemented.
Manual: Allows users to customize color correction output from the driver or operator panel.
1
2
3
-50%
-30%
-15%
-50%
-30%
-15%
General information
5061
4
5
Default
+10%
Default
N/A
1-3

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