Xerox Phaser 7400

5-14 Phaser 7400 Color Printer Service Manual
Mottled or Splotchy Prints
The print image has a mottled appearance.
Note
This defect is known to occur when manually duplexing, at low humidity, and
when printing on heavy weight media.
Troubleshooting Reference Table
Applicable Parts Example Print
■ Imaging Unit
■ LED Head
■ HVPS
■ Engine Control Board
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Ensure the media is approved and the
Control Panel and driver settings
match the loaded media.
Go to Step 2. Have the customer
load approved media
or correct the settings.
2
Print the Status page to verify the
operating environment.
NOTE: Low humidity, less than 20%
relative humidity can cause
mottling on prints.
Go to Step 3. Advise customer
regarding the printer’s
environmental
specifications.
s7400-322