Xerox Phaser 7700 Service Manual page 133

Print is mottled
The printed image has a mottled
appearance.
1.
Ensure that the paper is in good
condition and appropriate for a
laser printer.
2.
Ensure that the loaded media
matches the front panel settings.
Also check the media selected in the
printer driver.
3.
For specialty papers, experiment
with alternate paper type settings
such as Heavy Laser Paper, Thick
Cover/Index and others.
4.
Run the Calibrate for Paper routine.
From the front panel's Support
Menu, select Improve
Print-Quality? then select Calibrate
for Paper Menu.
Note
Verify the settings; (be sure
the setting is not at +4 value
before running Calibrate for Paper.The MPT must be have the
right setting to run calibrate for paper.
Image mis-registered on paper
The image area is not centered on the
page or the image is bleeding off of
the page. The printer displays no error
code.
1. Run the configuration or Startup
Page to verify the hard drive,
application, and driver settings.
From the front panel's Printable
Pages Menu, select Print
Configuration Pages or Print
Startup Page.
2. Is the correct weight paper loaded
in the tray or multi-purpose tray?
3. Ensure that the paper guides are
set to the correct position for the
paper loaded in the tray.
4. Try printing from the other trays. If
the problem only occurs from one
tray, clean the rollers in that tray.
5. Run the Calibrate for Margins
routine. From the front panel's
Support Menu, select Improve Print-Quality?, then select Calibrate Margins
Menu.
3-110 Phaser 7700 Color Laser Printer
3041-53
3041-54