• 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: Heating roller thermopile error
  The temperature measured by the thermopile does not reach 0 °C for 20 seconds.
• Causes: • Loose connection of the thermopile • Defective thermopile
• Remedy: 1. Check if the pressure roller thermistor is firmly connected. 2. Replace the thermopile. 3. Replace the pressure roller thermistor.

• Code: 563
• Description: Heating roller overheat 3 (software error)
  The detected fusing roller temperature stays at 230°C or more for 1 second.
• Causes: • Defective PSU • Defective IOB • Defective BICU
• Remedy: 1. Replace the PSU. 2. Replace the IOB. 3. Replace the BICU.

• Code: 564
• Description: Heating roller overheat 3 (hardware error)
  The thermopile detects 250°C or more.
• Causes: • Defective PSU • Defective IOB • Defective BICU • Defective fusing control system
• Remedy: 1. Replace the thermistor. 2. Replace the PSU. 3. Replace the IOB. 4. Replace the BICU.

• Code: 565
• Description: Heating lamp consecutive full power 3
  When the fusing unit is not running in the ready condition, the pressure roller-fusing lamp keeps ON full power for 120 seconds or more.
• Causes: • Broken heating roller fusing lamp
• Remedy: 1. Replace the pressure roller lamp. 2. Replace the pressure roller thermistor. 3. Replace the PSU.

• Code: 569
• Description: Pressure roller contact sensor error
  Pressure roller contact sensor does not detect the pressure roller position three times.
• Causes: • Broken or defective pressure roller contact sensor • Deformed or broken pressure roller contact sensor feeler • Defective pressure roller contact motor • Defective fusing unit
• Remedy: 1. Check or replace the harness of the pressure roller contact sensor. 2. Replace the pressure roller contact sensor. 3. Replace the pressure roller contact motor.

• Code: 571
• Description: Pressure roller thermistor error: Center
  The temperature at the center of the pressure roller measured by the thermistor does not reach 0°C for 37 seconds.
• Causes: • Loose connection of the thermistor • Defective thermistor
• Remedy: 1. Check if the thermistor is firmly connected. 2. Replace the center thermistor.

• Code: 581
• Description: IH inverter input voltage error
  The IH inverter detects 70 V or less/150 V or more for 10 seconds. The IH inverter detects 160 V or less/300 V or more for 10 seconds.
• Causes: • Unusual input voltage • Defective IH inverter
• Remedy: 1. Check if the power supply voltage of the customer site is within the proper power voltage range. 2. Check CN981 on the IH inverter. 3. Replace the IH inverter.