Stains On The Back Of The Print; No Printing On Edge Of Print; Image Is Not Centered On The Print When It Should Be - Tektronix Phaser 550 Service Manual

Stains on the back of the print

1.
Clean the second bias transfer roller with a dry, lint free cloth.
2. Clean the paper path of the paper feeder.
3. Replace the paper feed unit.
4.
Inspect the fuser rollers for contamination. Replace the fuser.

No printing on edge of print

1. Check the bottom latch of the toner cartridge above the cartridge with
the missing color operates correctly.
2. If a single primary color is missing, replace that color's toner cartridge.
3.
Ensure that each toner cartridge can be moved forward smoothly and
evenly toward the imaging unit. Also inspect the two metal pads on
the end of the toner cartridge that the toner cartridge selector cams
push against.
4. Inspect the cartridge selector/eject unit to ensure that the cams are in
good condition. Replace the cartridge selector/eject unit.

Image is not centered on the print when it should be

1.
Is the paper in good condition and appropriate for a laser printer.
2. Is the printer printing within its environmental specifications? Refer
to the Chapter 1 topic "Specifications" on page 1-14.
3. Ensure the paper feeder is properly installed.
4.
Clean the intermediate and aligning rollers.
5. Replace the paper feeder.
6. Replace the engine control board.
Troubleshooting
Service Manual 6-29
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