Tektronix Phaser 560 User Manual page 182

7
Troubleshooting
Troubleshooting and print quality quick reference (cont'd.)
Symptom
A single color shows a light,
repeating horizontal line.
Front panel reports:
Imaging unit:replace
Front panel reports:
Imaging unit expired
Prints are missing fine-line
detail.
Dark color spots and dark or
light streaks appear in all
colors.
Consumables Page shows a
straight, thin and even, light
vertical line in all colors.
7-10
Phaser 560 Color Laser Printer
Possible Causes
The roller in the toner cartridge has a
slight impression after long storage.
The Imaging Unit is wearing out.
The Imaging Unit is worn out.
The Imaging Unit is worn out.
The Imaging Unit is worn out.
The photosensitive belt inside the
Imaging Unit is scratched.
Solution
To fix the problem:
Run 20-30 prints. The impression will
disappear with continued time and use.
To avoid the problem:
Occasionally, or a day or two before
installing a new toner cartridge, rotate
the gear on the end of the cartridge by at
least a quarter turn.
Replace the Imaging Unit soon.
Replace the Imaging Unit now; although it
continues to function, the print quality is
affected.
Replace the Imaging Unit.
Replace the Imaging Unit.
Replace the Imaging Unit.