• 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: 581
• Description: IH inverter input voltage error
  The IH inverter detects 70V or less/140V or more for 10 seconds.
• Causes: • Unusual input voltage • Disconnected CN981 on the IH inverter • Defective IH inverter
• Remedy: 1. Check CN981 on the IH inverter. 2. Replace the IH inverter.

• Code: 582
• Description: IH inverter current error at power on
  The output current from the IH inverter does not reach the proper value when the IH inverter turns on.
• Causes: • Disconnected power input terminal 1 and 2 • Defective IH inverter • Defective IH coil unit • Defective fusing unit
• Remedy: 1. Check the power input terminals 1 and 2. 2. Replace the IH inverter. 3. Replace the IH coil unit. 4. Replace the fusing unit.

• Code: 585
• Description: IH coil unit full power (1250W) error
  The IH coil unit full power (1250W) continues for 220 seconds or more.
• Causes: • Defective IH inverter • Defective EGB • Defective IOB • Broken connection between IH inverter and IOB • Defective thermopile
• Remedy:

• Code: 610
• Description: Mechanical counter error: Bk
  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: 1. Check or replace the mechanical counter.

• Code: 611
• Description: Mechanical counter error: FC
  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: 1. Check or replace the mechanical counter.

• Code: 621
• Description: Finisher communication error
  While the IOB communicates with an optional unit, an SC code is displayed if one of following conditions occurs. • The IOB receives the break signal which is generated by the peripherals only just after the main switch is turned on. • When the IOB does not receive an OK signal from a peripheral 100ms after sending a command to it. And when the IOB does not receive an OK signal even after sending the command 3 times, the IOB resends the command.
• Causes: • Cable problems • IOB problems • EGB 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 IOB or main board of peripherals. 4. Replace the BCU. 5. Replace the defective peripheral.

• Code: 622
• Description: Paper tray unit communication error
  While the IOB communicates with an optional unit, an SC code is displayed if one of following conditions occurs. • The IOB receives the break signal which is generated by the peripherals only just after the main switch is turned on. • When the IOB does not receive an OK signal from a peripheral 100ms after sending a command to it. And when the IOB does not receive an OK signal even after sending the command 3 times, the IOB resends the command.
• Causes: • Cable problems • IOB problems • EGB 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 IOB or main board of peripherals. 4. Replace the BCU. 5. Replace the defective peripheral.