Lexmark 840 Printer User Manual


 
Solving print quality problems
103
Troubleshooting
The Quality menu operator panel options can be adjusted to help improve print quality.
In addition, the Enhance Fine Lines and Gray Correction options can be enabled to improve print quality. These settings are
available on the driver and on the printer Embedded Web Server (EWS) interface. For more information about these
options, see the driver help.
Menu selection Purpose Values
Print Resolution To select printed output resolution 600 dpi
1200 dpi
2400 Image Quality*
Toner Darkness Lightens or darkens printed output and
conserves toner
1–10 8* is the default setting.
Select a lower number to lighten the
printed output or save toner.
Brightness Adjusts the gray value of printed
objects
-6 – +6 0* is the default setting.
Contrast Adjusts the contrast of printed objects 0–5 0* is the default setting.
Driver option Purpose Values
Enhance Fine Lines A selection to enable a print mode
preferable for certain files containing
fine line detail, such as architectural
drawings, maps, electronic circuit
diagrams and flow charts
On In the driver, enable the check box.
Off* In the driver, disable the check box.
Gray Correction Automatically adjusts the contrast
enhancement applied to images
Auto In the driver, enable the check box.
Off* In the driver, disable the check box.
Values marked by an asterisk (*) are the factory default settings.