Sharp MX-2314N Service Manual page 272

F2-67 Toner supply operation trouble (Y)
Trouble content
Detail PCU
Cause Toner motor trouble.
Toner density sensor trouble.
Connector/harness trouble.
PCU PWB trouble.
Toner cartridge trouble.
Developing unit trouble.
Toner transport pipe section trouble
Check & Remedy Replace the toner motor.
Replace the toner density sensor.
Connector and harness check.
Replace the PCU PWB.
Replace the toner cartridge.
Replace the developing unit.
Check the toner transport pipe section.
F2-70 Improper toner cartridge detection (K)
Trouble content
Detail PCU
Cause An improper toner cartridge is inserted. (The main
unit detects a toner cartridge of a different
specification.)
Toner cartridge trouble.
PCU PWB trouble.
Check & Remedy Replace the toner cartridge.
Replace the PCU PWB.
F2-71 Improper toner cartridge detection (C)
Trouble content
Detail PCU
Cause An improper toner cartridge is inserted. (The main
unit detects a toner cartridge of a different
specification.)
Toner cartridge trouble.
PCU PWB trouble.
Check & Remedy Replace the toner cartridge.
Replace the PCU PWB.
F2-72 Improper toner cartridge detection (M)
Trouble content
Detail PCU
Cause An improper toner cartridge is inserted. (The main
unit detects a toner cartridge of a different
specification.)
Toner cartridge trouble.
PCU PWB trouble.
Check & Remedy Replace the toner cartridge.
Replace the PCU PWB.
F2-73 Improper toner cartridge detection (Y)
Trouble content
Detail PCU
Cause An improper toner cartridge is inserted. (The main
unit detects a toner cartridge of a different
specification.)
Toner cartridge trouble.
PCU PWB trouble.
Check & Remedy Replace the toner cartridge.
Replace the PCU PWB.
F2-74
Trouble content
Check & Remedy
F2-75
Trouble content
Check & Remedy
F2-76
Trouble content
Check & Remedy
F2-77
Trouble content
Check & Remedy
MX3114N TROUBLESHOOTING 7 – 17
Toner cartridge CRUM error (K)
Detail PCU
Cause Toner cartridge (CRUM) trouble.
PCU PWB trouble.
Connector and harness trouble between PCU PWB
and toner cartridge
Replace the toner cartridge.
Replace the PCU PWB.
Check the connector and the harness between the
PCU PWB and the toner cartridge.
Toner cartridge CRUM error (C)
Detail PCU
Cause Toner cartridge (CRUM) trouble.
PCU PWB trouble.
Connector and harness trouble between PCU PWB
and toner cartridge
Replace the toner cartridge.
Replace the PCU PWB.
Check the connector and the harness between the
PCU PWB and the toner cartridge.
Toner cartridge CRUM error (M)
Detail PCU
Cause Toner cartridge (CRUM) trouble.
PCU PWB trouble.
Connector and harness trouble between PCU PWB
and toner cartridge
Replace the toner cartridge.
Replace the PCU PWB.
Check the connector and the harness between the
PCU PWB and the toner cartridge.
Toner cartridge CRUM error (Y)
Detail PCU
Cause Toner cartridge (CRUM) trouble.
PCU PWB trouble.
Connector and harness trouble between PCU PWB
and toner cartridge
Replace the toner cartridge.
Replace the PCU PWB.
Check the connector and the harness between the
PCU PWB and the toner cartridge.