• 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: 01 - 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 • No DESS module 1. Install the expanded authentication module. 2. Install the SD card. 3. Install the DESS module. 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.
• Remedy:

• Code: 641
• Description: BICU control data transfer abnormal
  A sampling of the control data sent from the BICU reveals an abnormality.
• Causes: • Controller board defective • External noise • BICU board defective
• Remedy: 1. Replace the controller board. 2. Replace the BICU.

• Code: 650
• Description: Communication error of the remote service modem (Cumin-M)
• Causes: -001 - Authentication error The authentication for the Cumin-M fails at a dial up connection. • Incorrect SP settings • Disconnected telephone line • Disconnected modem board 1. Check and set the correct user name (SP5816-156) and password (SP5816-157). -004 - Incorrect modem setting Dial up fails due to the incorrect modem setting. Same as -001 1. Check and set the correct AT command (SP5819-160). -005 - Communication line error The supplied voltage is not sufficient due to the defective communication line or defective connection. Same as -001 1. Consult with the user's local telephone company.
• Remedy: