Troubleshooting
3-87
Mottled or Splotchy Prints
The print image has a mottled appearance.
Note: This defect is know to
occur when manually
duplexing, at low humidity, on
the following types of media:
■
OPB Branded Greeting Cards
■
OPB Branded CD Inserts
■
OPB Branded Business Cards
■
Other Thick Card Stock Media
.
Troubleshooting Procedure
Step
Question or Action
Yes
No
1
Ensure the media is approved for this printer
and that the printer front panel and driver
settings match the media loaded in the tray.
see “Media and Tray Specifications” on
page 1-16 for a list of approved media.
Go to step [2].
Have the
customer load
approved media
or correct the
settings.
2
Use service diagnostics to verify the printers
operating within it’s environmental
specifications.
Low humidity, less than 20% relative humidity
can cause mottling on prints.
Go to step [3]
Advise
customer
regarding the
environmental
specifications
for this printer.
3
Set the Color Correction to a setting other than
“Automatic” in the printer driver and try a
different print quality mode.
Most mottled prints occur in backgrounds using
“Black” only color. Using other Color Correction
settings will utilize the “Composite Black” colors
which will reduce the appearance of mottling.
Did this correct the problem?
Complete
Go to step [4].
4
Remove the Imaging Units and the Transfer
Unit and check for toner contamination on the
high voltage contacts.
Is there contamination?
Clean the
contacts.
Go to step [5].
5
Is +34V supplied to the POWER connector pins
12, 13, and 14 on the Engine Controller Board?
Go to step [6].
Replace the
LVPS or wiring
harness.
S7300-022
Содержание Phaser 7300B
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