Ricoh Aficio BP20N, Руководство по обслуживанию

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SET MALFUNCTIONS
SM 4-21 G144/G145
Trouble-
shooting
4.8.5 FUSING GEAR MELTS (OVERHEATS)
Description: Constant jams when paper enters the fusing unit, or the fusing unit
rollers do not turn.
1. Paper constantly becomes jammed in the fusing unit.
2. Fusing unit rollers do not turn.
Cause Solution
Fusing lamp, thermostat, or thermistor are
damaged. 1. Replace the fusing unit.
2.
Replace the main PBA.
4.8.6 COVER OPEN
Description: The error LED remains on when the cover is closed.
Cause Solution
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.
1. Check and replace the actuator if
necessary.
2. Replace the front cover.
3. Replace the main PBA if necessary.
4.8.7 NO ERROR LAMP WHEN COVER IS OPENED
Description: The error LED does not light when the print cover is opened.
Cause Solution
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.
1. Check and replace the actuator if
necessary.
2. Replace the cable or operation panel if
necessary.
3. Replace the main PBA if necessary.