• 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.

• 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.

• 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

• 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

• Code: 640
• Description: SBCU control data transfer checksum error
  A sampling of control data sent from the SBCU to the controller reveals a checksum error. Only the logging count is performed.
• Causes: • Controller board defective • External noise • SBCU board defective

• Code: 641
• Description: SBCU control data transfer abnormal
  A sampling of the control data sent from the SBCU reveals an abnormality.
• Causes: • Controller board defective • External noise • SBCU board defective

• Code: 650
• Description: Communication timeout error between SBCU and duplex unit
  The SBCU cannot receive a response within 1 second from the duplex unit.
• Causes: • Serial line connecting SBCU and duplex unit unstable • External noise • SBCU board and duplex main board connection defective or loose • Duplex main board defective • SBCU board defective

• Code: 670
• Description: Engine response error
  After powering on the machine, a response is not received from the engine within 30 seconds.
• Causes: • SBCU installed incorrectly • SBCU defective • Controller board defective