Tektronix 560 - Manual (Page 182)

7 Troubleshooting
7-10 Phaser 560 Color Laser Printer
A single color shows a light,
repeating horizontal line. The roller in the toner cartridge has a
slight impression after long storage. 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.
Front panel reports:
Imaging unit:replace
The Imaging Unit is wearing out. Replace the Imaging Unit soon.
Front panel reports:
Imaging unit expired
The Imaging Unit is worn out. Replace the Imaging Unit now ; although it
continues to function, the print quality is
affected.
Prints are missing fine-line
detail. The Imaging Unit is worn out. Replace the Imaging Unit.
Dark color spots and dark or
light streaks appear in all
colors. The Imaging Unit is worn out. Replace the Imaging Unit.
Consumables Page shows a
straight, thin and even, light
vertical line in all colors. The photosensitive belt inside the
Imaging Unit is scratched. Replace the Imaging Unit.
Troubleshooting and print quality quick reference (cont'd.)
Symptom Possible Causes Solution