• Code: 798-6
• Description: Finisher corner stapler motor error
  The 1st detection failure issues a jam error, and the 2nd failure issues this SC code. For 500-sheet finisher • The stapler HP sensor does not detect "ON"/"OFF" signal even the stapler moves from the "OFF"/"ON" position for 0.6 seconds. • The stapler HP sensor does not detect "ON" when a stapling job is commanded or the stapler moves.
• Causes: • Staple jam • Motor overload • Defective stapler motor
• Remedy: 1. Check the connections and cables for the components mentioned above. 2. Replace the HP sensor and/or stapler motor 3. Replace the finisher main board.

• Code: 798-7
• Description: Finisher stapler movement motor error
  For 500-sheet finisher • The stapler HP sensor does not detect "OFF" signal even the stapler moves from the "ON" position for 0.35 seconds. • The stapler HP sensor does not detect "ON" signal even the stapler moves from the "OFF" position for 5.5 seconds.
• Causes: • Motor overload • Loose connection of the stapler home position sensor • Loose connection of the stapler movement motor • Defective stapler home position sensor • Defective stapler movement motor
• Remedy: 1. Check the connection of the stapler movement motor. 2. Check the connection of the stapler home position sensor. 3. Replace the stapler home position sensor. 4. Replace the stapler movement motor.

• Code: 798-8
• Description: 500-sheet finisher: Tray lift motor error
• Causes: • Motor overload • Loose connection of the shift tray motor • Defective shift tray motor
• Remedy: 1. Check the connections to the tray lift motor. 2. Replace the tray lift motor.

• Code: 798-9
• Description: Stack pressure solenoid error
  The stack pressure solenoid in the finisher is not operating.
• Causes: • Solenoid harness loose, broken • Solenoid obstructed • Stack height sensor dirty, harness loose, broke • Solenoid defective • Stack height sensor defective
• Remedy: 1. Check or replace the solenoid harness. 2. Check for blockages in the stack pressure mechanism. 1. Replace the stack height sensor.

• Code: 816
• Description: Energy saving I/O sub-system error
  The energy saving I/O sub-system detects an error.
• Causes: • Controller board defective
• Remedy: Replace the controller board.

• Code: 819
• Description: Fatal kernel erro
  Due to a control error, a RAM overflow occurred during system processing. One of the following messages was displayed on the operation panel.
• Causes: • System program defective • Controller board defective • Optional board defective
• Remedy: Replace controller firmware

• Code: 820
• Description: Self-diagnostics error: CPU [XXXX]: Detailed error code. [0612] Cut-in in ASIC occurs.
• Causes: • Defective ASIC • Defective devices in which ASIC detects cut-in.
• Remedy: Replace the controller board.

• Code: 833
• Description: Self-diagnostic error 8: Engine I/F ASIC
• Causes: [0F30] [0F31] • ASIC (Mandolin) for system control could not be detected. After the PCI configuration, the device ID for the ASIC could not be checked. Replace the BICU. [0F41] • ASIC (Mandolin) for system control could not be detected. After the PCI configuration, the device ID for the ASIC could not be checked. Replace the BICU [50B1] Could not initialize or read the bus connection. • Check for loose connections at the mother board. Replace the mother board [50B2] Value of the SSCG register is incorrect. • Check for loose connections at the mother board. Replace the mother board
• Remedy: