• 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. The IOB resends the command. The IOB does not receive an OK signal after sending the command 3 times.
• Causes: • Cable problems • IOB problems • BICU 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 IOB or main board of peripherals. 3. Replace the BCU if no power is supplied to peripherals.

• 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. The IOB resends the command. The IOB does not receive an OK signal after sending the command 3 times.
• Causes: • Cable problems • IOB problems • BICU 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 IOB or main board of peripherals. 3. Replace the BCU if no power is supplied to peripherals.

• Code: 623
• Description: 2nd Paper Bank communication error
  This SC is not issued for this machine. When a communication error signal between the 1st paper bank and 2nd paper bank is received.
• Causes: • Loose connector
• Remedy: Check the connection between the main machine and paper feed unit.

• Code: 632
• Description: Counter device error 1
  After 3 attempts to send a data frame to the optional counter device via the serial communication line, no ACK signal was received within 100 ms.
• Causes: • Serial line between the optional counter device, the relay board and copier control board is disconnected or damaged • Make sure that SP5113 is set to enable the optional counter device.
• Remedy: 1. Check if the setting of the SP5113 is correctly set. 2. Check the connection between the main machine and optional counter device.

• Code: 633
• Description: Counter device error 2
  After 3 attempts to send a data frame to the optional counter device via the serial communication line, no ACK signal was received within 100 ms.
• Causes: • Serial line between the optional counter device, the relay board and copier control board is disconnected or damaged • Make sure that SP5113 is set to enable the optional counter device.
• Remedy: 1. Check if the setting of the SP5113 is correctly set. 2. Check the connection between the main machine and optional counter device.

• Code: 634
• Description: Counter device error 3
  A backup RAM error was returned by the counter device.
• Causes: • Counter device control board defective • Backup battery of counter device defective
• Remedy: Replace the counter device.

• Code: 635
• Description: Counter device error 4
  A backup battery error was returned by the counter device.
• Causes: • Counter device control board defective • Backup battery of counter device defective
• Remedy: Replace the counter device.

• Code: 636
• Description: SD Card Error
• Causes: Expanded authentication module error There is no expanded authentication module in the machine. The SD card or the file of the expanded authentication module is broken. There is no DESS module in the machine. • No expanded authentication module • Defective SD card • Defective file of the expanded authentication module • No DESS module 1. Install the expanded authentication module. 2. Install the SD card. 3. Install the DESS module. 4. Set the super service SP as follows and turn the main switch off and on. 1. User limitation: Set SP5-401-160 (expanded authentication management setting) to 0. 2. User limitation: Set SP5-401-161 (expanded authentication management detailed setting) to 0. 5. Execute SP5-876-1 (security all clear). If this is a mass-produced machine, replace the NV. 02 - Version error The version of the expanded authentication module is not correct. • Incorrect module version Install the correct file of the expanded authentication module. 11 - OSM user code file error The correct "usercode" file could not be found in the root folder of the SD card because the file is not present, or the existing file is corrupted or the wrong type file. Create the usercode files with the User Setting Tool "IDissuer.exe" and store the files in the root folder of the SD card. Note: Make sure the eccm.mod file is in the root folder of the SD card.
• Remedy: