Table of Contents
Advertisement
Image Defect
Dark Image: All areas of
the print are too dark.
Background: Uniform
toner contamination in
non-image area
Ghosting: Image from
the previous page prints
on consecutive pages.
Non-Uniform Image:
The Line darkness and
solid-area density image
vary across the print.
5-8
Possible Cause
Verify Remote Control
■
Panel settings.
Print Cartridge.
■
Incorrect high-voltage
■
outputs (Developer
Bias voltage).
Laser assembly
■
Media (paper).
■
Operating
■
environment.
Print Cartridge.
■
Transfer Roller.
■
Incorrect High Voltage
■
outputs.
Operating environment
■
Media (paper)
■
Print Cartridge
■
Transfer Roller
■
Fuser assembly
■
Incorrect high voltage
■
outputs.
S6200-284
Print Cartridge
■
Print Cartridge
■
grounding
Unstable high voltage
■
output.
Transfer Roller
■
contamination.
Laser Window or optic
■
contamination.
Solution
Verify Remote Control Panel
■
setting for the Toner Density
menu is not set to "dark."
Verify that the high-voltage
■
contacts are operational and
make good contact with the print
cartridge.
Replace the following in order:
■
Verify that paper meets printer
■
specifications. Print 20 to 30
pages using recommended
paper. If using recycled paper, try
non-recycled paper.
Printer is installed in specified
■
environment?
Replace Print Cartridge.
■
Inspect Transfer Roller for
■
contamination and good electrical
contact, replace if required.
Clean PTL
■
Replace Power Supply Board
■
Printer is installed in specified
■
environment?
Verify that paper meets printer
■
specifications. Print 20 to 30
pages using recommended
paper.
Determine ghosting pitch and
■
replace the corresponding
assembly.
NOTE: Refer to "Defects
Associated with Specific Printer
Components" on page 5-2 for
defect pitch.
Replace Power Supply Board.
■
Ensure that Cartridge is not out of
■
toner. Inspect Drum for
deterioration or contamination.
If defective, replace the Print
■
Cartridge.
Verify Print Cartridge ground.
■
Check continuity between
cartridge ground contact and
frame ground. Ensure that drum
contact is clean and undamaged.
Inspect the Transfer Roller spring
■
tension and bearing contacts.
Remove Laser assembly, clean
■
window or replace assembly as
necessary .
Replace Power Supply Board.
■
Phaser 3425 Laser Printer Service Manual
Print Cartridge
■
Power Supply Board
■
Laser assembly
■
Advertisement
Table of Contents
Troubleshooting
