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20 July 2005
4.8.5 FUSING GEAR MELTS (OVERHEATS)
Description: Constant jam when paper enters the fusing unit, or, fusing unit rollers
do not turn.
1. Paper constantly gets jammed in the fusing unit.
2. Fusing unit rollers do not turn
Cause
1.
Fusing lamp, thermostat or thermistor are
damaged.
4.8.6 COVER OPEN
Description: The error lamp stays on even when the cover is closed
Cause
1.
Hook lever or actuator may be stuck.
2.
Hook lever on the front cover may be
damaged or broken.
3.
Sensor switch on the main PBA may be
defective.
4.8.7 NO ERROR LAMP WHEN COVER IS OPENED
Description: The error lamp does not light even when the print cover is opened.
Cause
1.
Hook lever or actuator may be stuck.
2.
Operation panel LED may be faulty.
Check the connector and cables between
the PBA and the operation panel.
3.
Sensor switch on the main PBA may be
defective.
4.8.8 DEFECTIVE MOTOR OPERATION
Description: Cover open message shows on the LCD when the front cover is
closed.
Cause
1.
Main motor harness or motor PCB may
be defective.
2.
Main PBA may be defective.
3.
Defective SMPS
1.
Replace the fusing unit
2.
Replace the main PBA
1.
Check and replace the actuator if
necessary.
2.
Replace the front cover.
3.
Replace the main PBA if necessary.
1.
Check and replace the actuator if
necessary.
2.
Replace the cable or operation panel if
necessary.
3.
Replace the main PBA if necessary.
1.
Check the motor harness and connectors.
Replace if necessary. If the problem
stays, check and replace the PBA or
SMPS if necessary.
4-21
SET MALFUNCTIONS
Solution
Solution
Solution
Solution
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