• Code: 230
• Description: FGATE ON error The FGATE signal did not assert within the prescribed time. (The BICU generates the FGATE signal and sends it to the LD unit when the registration sensor switches on.)
• Causes: • BICU, Controller board harness loose or broken • BICU defective • Controller board defective
• Remedy:

• Code: 231
• Description: FGATE OFF error The FGATE signal did not go off within the prescribed time. (The BICU generates the FGATE signal and sends it to the LD unit when the registration sensor switches on.)
• Causes: • BICU, Controller board harness loose or broken • BICU defective • Controller board defective
• Remedy:

• Code: 240
• Description: LD error The IPU detected a problem at the LD unit.
• Causes: • LD unit harness broken, defective • BICU harness broken defective • LD unit defective • BCU defective
• Remedy:

• Code: 312
• Description: Charge level output error The PWM output level was detected higher or lower than 50% for 200 ms.
• Causes: • HVPS (High Voltage Power Supply) board harness loose, broken. • Terminal loose or broken at the charge rollers T
• Remedy:

• Code: 320
• Description: Development bias leak A development bias leak signal is detected.
• Causes: • Poor connection at the development bias terminal • High voltage supply board defective
• Remedy:

• Code: 440
• Description: Transfer roller leak error 1 A transfer roller current leak signal wad detected higher or lower than 50% for 200 ms. (The current feedback signal for the transfer roller was not detected within the correct time.)
• Causes: • High voltage supply board set incorrectly or defective • Transfer roller set incorrectly or damaged • Transfer roller set incorrectly
• Remedy:

• Code: 500
• Description: Main motor lock The machine does not detect motor lock signal for 250 ms during motor's operating. The machine does not detect motor lock signal for 1 second at rotating the main motor.
• Causes: • An obstruction has blocked operation of the main motor • Main motor harness loose or broken • Main motor or main motor driver board defective
• Remedy:

• Code: 530
• Description: Exhaust fan error. The motor lock signal error is detected for 2 seconds after the motor lock signal was first detected.
• Causes: • Disconnected or defective harness • Defective each fan
• Remedy: