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SHARP SERVICE MANUAL JX8200SM [11] TROUBLESHOOTING
Display 14
During printing
During diagnostics
Section
Photoconductor drum section
Content
Photoconductor drum cartridge life over
Occurrence conditions
Photoconductor unit life is reached. (50000 prints)
Photoconductor unit installation detection line electrode disconnection
Details, causes
(The photoconductor unit counter reaches 50000 prints.)
(The photoconductor unit installation detection signal (PCD) is not recognized.)
The PCU PWB photoconductor unit installation detection signal (PCD) input circuit trouble
Toner motor trouble
PCU PWB toner motor control circuit trouble
Remedies
Supply toner.
Replace the photoconductor unit.
Repair the PCU PWB photoconductor unit installation detection signal (PCD) input circuit.
Repair the photoconductor unit installation detection line electrode.
Display 15
During printing
During diagnostics
Section
Black developing section
Content
Black cartridge life over
Occurrence conditions
The black developing unit life is reached. (50000 prints)
Black developing unit toner concentration sensor detection trouble
Details, causes
(The black developing unit life is reached. (50000 prints)
(The black toner concentration sensor signal (KDSEN) is not recognized.)
PCU PWB black developing unit toner concentration detection signal (KDSEN) input circuit trouble
Black developing unit toner concentration detection connector disconnection
Remedies
Replace the black developing unit.
Repair or replace the PCU PWB black developing unit toner concentration signal (KDSEN) input circuit.
Repair or replace the black developing unit toner concentration detection connector.
Replace the PCU PWB.
Display 16
During printing
During diagnostics
Section
Color developing unit
Content
Color developing cartridge life over
Occurrence conditions
Color developing unit (any color) life is reached. (30000 prints)
Color developing unit installation detection trouble
Details, causes
(The color developing unit life is reached. (30000 prints)
(The color toner developing unit toner concentration sensor signal (YDSEN/MDSEN/CDSEN) is not recognized.)
PCU PWB color developing unit toner concentration sensor signal (YDSEN/MDSEN/CDSEN) input circuit trouble
Color developing unit installation detection line connector disconnection
Remedies
Replace the color developing unit.
Repair or replace the PCU PWB color developing unit toner concentration sensor signal (YDSEN/MDSEN/CDSEN)
input circuit.
Repair or replace the color developing unit connector.
Replace the PCU PWB.
*1: During the diagnostics operation, the self diagnostics function does not work.
LED
ERROR ON
SUPPLY ON
MESSAGE
ADD
(Supply)
MESSAGE
REPL DRUM
LED
ERROR ON
SUPPLY ON
MESSAGE
REPL BKDEV
(Supply)
*1
MESSAGE
LED
ERROR ON
SUPPLY ON
MESSAGE
REPL COLDEV
(Supply)
*1
MESSAGE
11 – 7
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