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SHARP SERVICE MANUAL JX8200SM [11] TROUBLESHOOTING
Display 11
During printing
During diagnostics
Section
PCU PWB
ICU PWB
Content
Serial communication trouble
Occurrence conditions
ICU PWB-PCU PWB communication trouble
Details, causes
ICU PWB-PCU PWB communication trouble
Remedies
Replace the PCU PWB.
Replace the ICU PWB.
Repair the PCU PWB video I/F peripheral circuit.
Display 12
During printing
During diagnostics
Section
Color developing section
Content
Yellow toner empty
Magenta toner empty
Cyan toner empty
Occurrence conditions
Though toner is supplied for the specified time, the toner concentration level does not reach the specified level.
Toner sensor trouble
Details, causes
(The toner concentration sensor signal level exceeds the reference toner concentration control level.)
Developing unit trouble
PCU PWB toner concentration sensor signal (YDSEN/MDSEN/CDSEN) input circuit trouble
Toner clutch trouble
Toner clutch solenoid trouble
PCU PWB toner clutch solenoid control circuit trouble
Remedies
Supply toner.
Repair the PCU PWB toner concentration sensor signal (YDSEN/MDSEN/CDSEN) input circuit. Repair the PCU
PWB toner clutch control circuit.
Replace the toner clutch.
Replace the toner clutch solenoid.
Repair the PCU PWB toner clutch solenoid control circuit.
Replace the PCU PWB.
Display 13
During printing
During diagnostics
Section
Black developing/Black toner hopper section
Content
Black toner empty
Occurrence conditions
Though toner is supplied for the specified time, the toner concentration does not reach the specified level.
Toner sensor trouble
Details, causes
(The toner concentration sensor signal level exceeds the reference toner concentration control level.)
Developing unit trouble
PCU PWB toner concentration sensor signal (KDSEN) input circuit trouble
Toner motor trouble
PCU PWB toner motor control circuit trouble.
Remedies
Supply toner.
Repair the PCU PWB toner concentration sensor signal (KDSEN) input circuit. Repair the PCU PWB toner motor
control circuit.
Replace the toner motor.
Replace the toner motor control circuit.
Repair the PCU PWB toner motor control circuit.
Replace the PCU PWB.
*1: During the diagnostics operation, the self diagnostics function does not work.
LED
All LEDs are blink
MESSAGE
SERVICE (P4)
*1
MESSAGE
LED
ERROR ON
SUPPLY ON
MESSAGE
ADD TONER
(Toner type)
MESSAGE
ADD TONER Y
ADD TONER M
ADD TONER C
LED
ERROR ON
SUPPLY ON
MESSAGE
ADD TONER
(Toner type)
MESSAGE
ADD TONER K
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