Sharp JX-8200 Service Manual page 105

SHARP SERVICE MANUAL JX8200SM [11] TROUBLESHOOTING
Display 17
During printing
During diagnostics
Section Fusing section
Content Fusing unit life over
Occurrence conditions Fusing unit life is reached. (60000 sheets.)
Fusing unit installation detection trouble
Details, causes (The fusing unit life is reached. (60000 sheets)
(The fusing unit thermister signal (RTH) input circuit is not recognized.)
PCU PWB fusing unit thermister signal (RTH) input circuit trouble
Remedies Replace the fusing unit.
Repair the PCU PWB fusing unit thermister signal (RTH) input circuit.
Repair or replace the fusing unit thermister connector.
Replace the PCU PWB.
Display 18
During printing
During diagnostics
Section Waste toner section
Content Waste toner bottle full
Occurrence conditions The waste toner bottle is full.
The waste toner bottle is not installed.
Waste toner bottle full sensor trouble
Waste toner bottle sensor trouble
Details, causes (The waste toner bottle full detection signal (WTBS) is active.)
(The waste toner bottle detection signal (WTBS) is not recognized.)
PCU PWB waste toner bottle installation detection signal (WTBS) input circuit trouble
PCU PWB waste toner bottle full detection signal (WTBS) input circuit trouble
Waste toner bottle installation detection sensor trouble
Waste toner bottle full detection sensor trouble
Remedies Replace the waste toner bottle.
Repair the PCU PWB waste toner bottle installation detection signal (WTBS) input circuit.
Repair the PCU PWB waste toner bottle full detection signal (WTBS) input circuit.
Replace the waste toner bottle installation sensor.
Replace the waste toner bottle full sensor.
Replace the PCU PWB.
Display 19
During printing
During diagnostics
Section Fusing section
Content Fusing oil empty
Occurrence conditions Oil empty
Oil sensor trouble
Fusing unit trouble
Details, causes (After recognizing the oil sensor signal (OIL SEN) as HIGH, the print quantity reaches 50 sheets.)
PCU PWB oil sensor signal (OIL SEN) input circuit trouble
Oil sensor trouble
Oil sensor dirt
Interface PWB trouble
Fusing unit oil sensor signal (OIL SEN) line connector trouble
Remedies Supply oil.
Repair the PCU PWB oil sensor signal (OIL SEN) input circuit.
Replace the oil sensor.
Clean the oil sensor.
Clean the oil tank.
Replace the interface PWB.
Repair or replace the fusing unit connector.
*1: During the diagnostics operation, the self diagnostics function does not work.
LED ERROR ON
SUPPLY ON
MESSAGE REPL FUSER
(Supply)
*1
MESSAGE
LED ERROR ON
SUPPLY ON
MESSAGE REPL WTB
(Supply)
MESSAGE WTBS OVER OR NO
LED ERROR ON
SUPPLY ON
MESSAGE REPL OIL BOTTLE
(Supply)
*1
MESSAGE
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