• Code: 559
• Description: Consecutive fusing jam
  The paper jam counter for the fusing unit reaches 3 times. The paper jam counter is cleared if the paper is fed correctly. This SC is activated only when SP1159-001 is set to "1" (default "0").
• Causes: • Paper jam in the fusing unit
• Remedy: Remove the paper that is jammed in the fusing unit. Then make sure that the fusing unit is clean and has no obstacles in the paper feed path.

• Code: 561
• Description: Pressure roller thermistor error
  The temperature detected by the pressure roller thermistor does not reach 0 °C for 20 seconds.
• Causes: • Loose connection of the pressure roller thermistor • Defective thermopile • Defective pressure roller thermistor
• Remedy: 1. Check if the pressure roller thermistor is firmly connected. 2. Replace the thermopile. 3. Replace the pressure roller thermistor. No.

• Code: 563
• Description: Pressure roller overheat (software error)
  The temperature detected by the pressure roller thermistor stays at 230°C or more for 1 second.
• Causes: • Defective PSU • Defective IPU • Defective BCU
• Remedy: 1. Replace the PSU. 2. Replace the IPU. 3. Replace the BCU.

• Code: 564
• Description: Pressure roller overheat (hardware error)
  The temperature detected by the pressure roller thermistor detects 250°C or more.
• Causes: • Defective PSU • Defective IPU • Defective BCU • Defective fusing control system
• Remedy: 1. Replace the thermistor. 2. Replace the PSU. 3. Replace the IPU. 4. Replace the BCU.

• Code: 565
• Description: Pressure roller fusing lamp consecutive full power
  When the fusing unit is not running in the ready condition, the pressure roller fusing lamp keeps ON full power for 300 seconds or more.
• Causes: • Broken pressure roller fusing lamp • Defective pressure roller thermistor
• Remedy: 1. Replace the pressure roller lamp. 2. Replace the pressure roller thermistor. 3. Replace the PSU.

• Code: 610
• Description: Mechanical counter error: K
  This SC is only for NA models. The machine detects the mechanical counter error when SP5987-001 is set to "1"
• Causes: • Disconnected mechanical counter • Defective mechanical counter
• Remedy: Check or replace the mechanical counter.

• Code: 620
• Description: ARDF communication error
  After the ARDF is detected, the break signal occurs or communication timeout occurs.
• Causes: • Incorrect installation of ARDF • ARDF defective • BCU board defective • External noise
• Remedy: 1. Check the cable connection of the ARDF. 2. Shut out the external noise. 3. Replace the ARDF. 4. Replace the BCU board.

• Code: 621
• Description: Finisher communication error
  While the BCU communicates with an optional unit, an SC code is displayed if one of following conditions occurs. • The IPU receives the break signal which is generated by the peripherals only just after the main switch is turned on. • When the BCU does not receive an OK signal from a peripheral 100ms after sending a command to it. The IPU resends the command. The IPU does not receive an OK signal after sending the command 3 times.
• Causes: • Cable problems • IPU problems • BCU problems • PSU problems in the machine • Main board problems in the peripherals
• Remedy: 1. Check if the cables of peripherals are correctly connected. 2. Replace the PSU if no power is supplied to peripherals. 3. Replace the IPU or main board of peripherals. 4. Replace the BCU.