Manual

Advanced Features and Troubleshooting Manual 55
Troubleshooting Phaser 750 Printers
A single color shows a light, repeating horizontal line
■ 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.
Prints are missing fine-line detail
■ Replace the Imaging Unit.
Dark color spots and dark or light streaks appear in all colors
■ Replace the Imaging Unit; make sure that the old Imaging Unit is not exposed to light
for more than 3 minutes.
■ If a new Imaging Unit does not correct the problem:
■ Put the old Imaging Unit back into the printer.
■ Repack the new Imaging Unit.
■ Replace the Fuser.
Print shows a straight, thin and even, light vertical line in all colors
■ Replace the Imaging Unit.