• Code: 078-301
• Description: HCF Docking interlock Open RAP HCF Docking Interlock Open. The HCF and the IOT were undocked.
• Remedy: The display changes. Y↓N→Undock the HCF. Press the HCF Docking Interlock several times. The display changes. Y↓N→The voltage between PF/JF08-2 on the HCF PWB and GND drops to less that 1 VDC when the Docking Interlock is pressed. Y↓N→Check the wires between PF/JF08-1 on the HCF PWB and FS003 on the HCF Docking Interlock, and between FS004 on the HCF Docking Interlock and PF/ JF08-2 on the HCF PWB for an open wire or poor contact. If the wires are good, replace the HCF Docking Interlock Switch (PL 10.8). Replace the HCF PWB (PL 10.8). The problem could be misalignment between the HCF Docking Base and the IOT. Refer to PL 19.3. The problem may be intermittent. Check the circuit (BSD 1.11 - HCF Power Distribution) for loose or damaged wiring.

• Code: 078-900
• Description: Tray 6 (HCF) Feed Out Sensor Static Jam RAP When the power was turned ON, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Tray 6 Feed Out Sensor detected paper
• Remedy: Check the following: • The Tray 6 Feed Out Sensor (PL 10.7) for remaining paper, contamination, Actuator return failure, or improper installation • The Tray 6 Feed Out Sensor for failure: Component Control [078-101] (PL 10.7) • The connection between the Tray 6 Feed Out Sensor PF/JF67-2 and the HCF PWB PF/ JF01-2 for short circuit Reload the machine software (GP 16). If no problems are found, replace the HCF PWB (PL 10.8).

• Code: 091-313
• Description: CRUM ASIC Communication Fail RAP Communication error between CPU of the MCU PWB and ASIC was detected.
• Remedy: 1. Turn the power OFF and ON. 2. Turn the power OFF and replace the Xero Cartridge, then the MCU PWB (PL 18.2).

• Code: 091-314
• Description: Fuser Fan Fault RAP Fan (for air exhaust around the Fuser) rotation failure.
• Remedy: Execute Component Control for the CRU Fan [042-203]. The CRU Fan rotates. Y↓N→Check the wires between P/J200 on the CRU Fan and P/J414 on the MCU PWB for an open or shorted circuit, or a loose or damaged connector. The wires are OK. Y↓N→Repair as required. Replace the CRU Fan (PL 4.1) before replacing the MCU PWB (PL 18.2) Check the wire between P/J200-3 on the CRU Fan and P/J414-A4 on the MCU PWB for an open circuit. If OK, replace the MCU PWB (PL 18.2).

• Code: 091-401
• Description: Drum Cartridge Near Life RAP It was detected that the replacement timing for Drum is closer than Pre Near.
• Remedy: The Drum needs to be replaced soon. Replace the Drum (PL 8.1) as required.

• Code: 091-402
• Description: Drum Cartridge Life Over RAP Drum has reached the end of its life span.
• Remedy: Replace the Drum (PL 8.1).

• Code: 091-406
• Description: Drum Cartridge Pre Near Life RAP It was detected that the replacement timing for Drum is closer than Near.
• Remedy: The Drum needs to be replaced soon. Replace the Drum (PL 8.1) as required.

• Code: 091-600
• Description: Temperature Sensor Fail RAP Environment Temp Sensor failure.
• Remedy: Check the following: • The Temperature Sensor for failure: Component Control [092-200] (PL 8.2). • The connection between the Hum and Temp Sensor P/J150 and the MCU PWB P/J415 for open circuit, short circuit, and poor contact If no problems are found, reload the machine software (GP 16).