Fuser Jams - Tektronix PHASER 560 Service Manual

Downloaded from www.Manualslib.com
8. Clean the aligning rollers.
9. Do the aligning rollers rotate during a paper pick? Determine if the
aligning roller clutch operates correctly.
10.
Check that the paper feeder wiring is properly installed and that the
wiring harnesses are not damaged.
11. Check the spring pressure at each end of the aligning rollers. Lifting
each end of the roller with a tension gauge should reveal a
measurement of about 1 kg (2.2 lbs).
12. Check the left side door for burrs or foreign obstructions that could
block the movement of a sheet of paper. Check for a paper scrap in
the paper guide.
13. Try printing using a different paper tray.

Fuser jams

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.
Is this a duplex print with heavy printing (lots of toner coverage) on
the first-printed side? Print the light printing side first.
4. Is the heat shield plate at the entrance of the fuser loose and
obstructing the paper path?
5.
Inspect the fuser's gear train leading to the paper feed motor. Does it
rotate properly? Do any of the gears show broken teeth?
6. Does the fuser exit sensor flag properly actuate its sensor?
7. Inspect the wiring harnesses leading from the cartridge sensor/eject
unit to CN21 of the engine control board.
8.
Inspect the fuser roll. If it is empty, replace the fuser roll.
9.
Observe if the exit rollers rotate during the print process. If they do
not, reinstall the fuser to ensure its gear train (which also drives the
exit roller) properly connects to the paper feed motor.
10. Replace the fuser.
11. Replace the engine control board.
manuals search engine
6
Troubleshooting
6-11
Service Manual