Xerox Phaser 3450 Service Manual page 86

7.2.7 Multi-Feeding
• Description Multiple sheets of paper are fed at once.
Check and Cause
1. Solenoid malfunction(the solenoid does not work
properly): Perform EDC Mode.
2. Pad-Friction is contaminated with foreign matter.(oil..)
3. The face of paper is blended.
7.2.8 Paper rolled in the fuser
• Description If contaminated at intervals of 57mm on the back of a paper.
Check and Cause
1. Contamination of the pressure roller or heat
roller (Background, Hot off set).
2. Check the claw of the fuser whether it is
deformed.
Solution
1. Replace the solenoid if necessary.
2. Replace the Main PBA.
3. Clean the pad friction with soft cloth dampened with
IPA(Isopropyl Alcohol).
4. Use the smooth paper.
Solution
1. After disassembling the fuser, clean contami-
nation between the heat roller and the ther-
mostor and remove the contamination of the
pressure roller.
2. If there is heavy background, repair it by the
background troubleshooting method.
3. Clean the surface of the heat roller with IPA or
water
4. Check the warp or separation of the print claw
and the holder plate claw, and then manage it.
TROUBLESHOOTING
Service Manual
7-11