• Code: SC620-02
• Description: ADF Communication Error. After ADF connection was recognized on startup, an error is detected. (Retry out due to communication error)
• Causes: • ADF connection fault • ADF defection • IPU board defection • Noise contamination • ADF machine code unmatched
• Remedy: • Check the ADF cable connection • Replace the ADF • Replace the IPU board • Replace the ADF which matches the machine code

• Code: SC621-00
• Description: Finisher Communication Error • Detected an error when connecting the communication line. • Received a communication error notification from the UART.
• Causes: • Finisher control board defective. • BCU defective • Connection fault between finisher and main machine.
• Remedy: • Turn the power off/on. • Reconnect the Finisher interface cable • Replace the BCU • Replace the finisher

• Code: SC622
• Description: Paper Bank Communication Error. Detected an error when connecting the communication line. SC622-01 Paper Bank 1 Communication Error (D694) SC622-11 Paper Bank 1 Communication Error (D787) SC622-12 Paper Bank 1 Communication Error (D787) SC622-31 Paper Bank 1 Communication Error (D695)
• Causes: • Paper bank control board defective • BCU defective • Paper bank-main machine connection fault
• Remedy: • Turn the power off/on. • Reconnect the optional paper tray connection cable. • Replace the BCU. • Replace the optional paper tray.

• Code: SC623-00
• Description: Paper Bank Communication Error (D696) When two trays PFU (D787) and side LICT (D696) or LCIT (D695) and side LCIT (D696) are installed, 1. When the upper stream unit (D787 or D695) recognizes the lower stream unit (D696), the break of the lower stream unit is not canceled within predetermined milliseconds. 2. After the upper stream unit (D787 or D695) recognizes the lower stream unit (D696), there is no ACK within predetermined milliseconds after transmission of a data frame to the lower stream unit, and a timeout error occurs for 3 times consecutively even if retransmission is performed.
• Causes: • Bank control board fault • Connector disconnected
• Remedy: • Turn the power off/on. • Reset the optional paper tray connecting cable. • Replace the BCU. • Replace the optional paper tray.

• Code: SC632-00
• 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.
• Remedy: • Turn the main power off/on. • Check the serial communication line.

• Code: SC633-00
• Description: Counter Device Error 2 After communication was established, the controller received the brake signal from the accounting device.
• Causes: Serial line between the optional counter device, the relay board and copier control board is disconnected or damaged.
• Remedy: • Turn the main power off/on. • Check the serial communication line.

• Code: SC634-00
• Description: Counter Device Error 3 A backup RAM error was returned by the counter device.
• Causes: Counter device control board or the backup battery of counter device defective
• Remedy: • Replace the counter device control board. • Replace the backup battery.

• Code: SC635-00
• Description: Counter Device Error 4 A backup battery error was returned by the counter device.
• Causes: Counter device control board or the backup battery of counter device defective
• Remedy: • Replace the counter device control board. • Replace the backup battery.