Xerox Phaser 3425, Руководство по обслуживанию

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Print-Quality Troubleshooting 5-7
Print-Quality Troubleshooting
The following table provides examples or descriptions of various image or printing
defects that may be observed in the Phaser 34
25 Laser Printer. The table also lists
possible causes and solutions.
Image Defect Possible Cause Solution
No Image/Blank Prints
Prints have no visible
image
■
Seal tape was not
removed from the
cartridge.
■
Low or no toner
■
Defective ground to
the Print Cartridge.
■
Main Board
■
Incorrect high-voltage
output from the Power
Supply Board.
■
Ensure that sealing tape has
been removed.
■
Verify Print Cartridge ground.
■
Verify continuity between the
cartridge ground and frame.
■
Replace in the following order:
■
Print Cartridge
■
Main Board
■
Power Supply Board
■
Laser Assembly
Light Prints:
All areas
of the print are light
■
Media (paper)
■
Verify Remote Control
Panel settings.
■
Seal tape was not
removed from the
cartridge.
■
Low toner
■
Transfer Roller
■
Laser contamination or
obstruction.
■
Incorrect high-voltage
output.
■
Low ambient
temperature
(<10º C).
■
Verify paper meets printer
specifications. Print 20 to 30
pages using the recommended
paper.
■
Verify that the Remote Control
Panel is
not
set to Economode or
that Toner Density menu is not
set to “light.”
■
Ensure that the sealing tape has
been removed.
■
Verify low toner warning is not
displayed on front panel. Remove
the Print Cartridge and shake,
reinstall or replace.
■
Inspect the Transfer Roller for
contamination and verify high-
voltage contacts. Replace as
required.
■
Inspect the Laser assembly for
any obstructions; clean laser.
■
Replace the Power Supply Board.
Black Prints:
The prints
are completely black,
has no visible image.
■
No charge voltage.
Power Supply Board
■
Print Cartridge
■
Main board
■
Laser is always on.
■
Verify the high-voltage contacts
are operational and make good
contact with the print cartridge.
■
Replace in the following order:
■
Print Cartridge
■
Power Supply Board
■
Main Board
■
Laser Assembly