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PAPER FEED PROBLEMS
4.7.4 JAM 2
Description:
1) Paper gets jammed in front of, or, inside the fusing unit.
2) Paper gets stuck in the discharge roller and in the fusing unit after it passes
through the actuator feed.
Cause
1.
Jam 2 can show even if the paper is
completely fed out of the printer. The exit
sensor may be defective. This sensor
should go back to its original position to
the shut the photo sensor. It may stay
open due to debris.
2.
Paper stays rolled in the fusing unit. The
guide claw could be broken or damaged.
4.7.5 MULTI-FEEDING
Description: Multiple sheets of paper get fed at the same time.
Cause
1.
Paper size guides may not be set
correctly (main paper tray unit and by-
pass tray)
2.
Solenoid does not operate correctly.
3.
Friction pad is contaminated.
4.
Paper has a rough surface edge.
4.7.6 PAPER ROLLED IN THE FUSING UNIT
Description: Paper stays rolled around the rollers in the fusing unit.
Cause
1.
Pressure roller or hot roller may be
contaminated
2.
Ribs, claws or springs may be damaged
or deformed.
1.
Check if the exit sensor or actuator exit is
damaged.
• Check if burrs show on the assembly
part of the exit actuator.
• Check if unwanted particles prevent
correct operation of the actuator.
2.
Disassemble the fusing unit and remove
the jammed paper. Then clean the
surface of the pressure roller with dry
gauze. Check all ribs, claws and springs.
1.
Adjust the paper guides
2.
Replace the solenoids or PBA
3.
Clean the friction with a soft cloth
dampened with isopropyl alcohol or
water.
4.
Use paper with a smoother surface
1.
Clean the roller surfaces and area
between the hot roller and thermistor with
isopropyl alcohol or water.
2.
Check for damage. Replace the fusing
unit if necessary.
4-18
20 July 2005
Solution
Solution
Solution
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