Tektronix Phaser 560 User Manual page 185

Troubleshooting and print quality quick reference (cont'd.)
Symptom
Front panel reports:
Fuser:replace
Front panel reports:
Fuser expired
A piece of the printed image
is missing and reappears out
of place, approximately
129 mm (5 in.) down the
page.
The surface of the printed
image appears to have
vertical scratches (visible by
holding the print at an angle
and observing the "shine" of
the image).
At first, the scratches appear
only on the printed image;
eventually, dark vertical
scratches appear on the
unprinted portion of the page.
A piece of the printed image
is missing and reappears out
of place, approximately
129 mm (5 in.) down on the
page.
Media frequently wraps
around the Fuser.
Light vertical streaks appear
in all colors (most easily
visible in yellow).
Possible Causes
The Fuser is wearing out.
The Fuser is worn out.
The Fuser's internal roller is not being
consistently oiled.
or
The Fuser's internal roller is
contaminated with toner particles.
The Fuser is wearing out.
The Fuser's internal roller is not being
consistently oiled.
or
The Fuser's internal roller is
contaminated with toner particles.
The Fuser Roll is worn out.
The Main Charge Grid is dirty.
Troubleshooting
Solution
Replace the Fuser soon.
Replace the Fuser now; although it
continues to function, the print quality is
affected.
Print 5-10 pages of blank pages to clean
the roller.
If you still see the problem:
Replace the Fuser Roll.
If you still see the problem:
Replace the Fuser.
Replace the Fuser (depending on your
quality needs, you can continue to print
until the dark vertical lines appear).
Print 5-10 pages of blank pages to clean
the roller.
If you still see the problem:
Replace the Fuser Roll.
If you still see the problem:
Replace the Fuser.
Replace the Fuser Roll.
Replace the Main Charge Grid. Complete
instructions are packaged with the Main
Charge Grid. Refer to "Supplies and
accessories" on page 9-2 for ordering
information.
User Manual
7
7-13