• Code: CD370
• Description: Nonvolatile data multiple errors. Multiple errors (Over 5) are detected by the abnormal check of each nonvolatile data.
• Causes:
• Remedy: • Trouble code [C-D370] will be displayed when multiple errors (over 5) of nonvolatile data are detected, which can be restored with one restoration command. • Data backup will be automatically performed every hour. Backup can also be performed manually with the following setting. [Service Mode] -> [Enhanced Security] -> [Memory Data Backup] 1. When a trouble caused by nonvolatile data error occurs, the screen below appears. 2. Select [Yes]. 3. The screen will be shifted to the data restoration screen to perform data restoration. NOTE • When the restoration is performed in a short time, data restoration screen may not be displayed. 4. Check the message which indicates that the data restoration was successfully conducted. Turn OFF the main power switch and turn it ON again more than 10 seconds after. NOTE • In case it failed to restore data, return to the trouble code screen.

• Code: CD390
• Description: Nonvolatile data checksum error C-D390 code is normally shown when the MFP board is replaced with a new one.
• Causes:
• Remedy: 1 Wait until “Recover Data” appears. (MFP will reboot maximum 2 times by itself, it may take 5 minutes.) Touch the “Recover Data” button and follow the instructions that appear on the control panel to restore (backup) data.

• Code: CD3A0
• Description: Counter error. The total counter values provided by the MFP board and the SSD board are different.
• Causes: • MFP board (MFPB) • SSD board (SSDB)
• Remedy: 1 If this error occurs temporarily due to the use of the board removed from another machine, reinstall the original board. 2 Replace the current MFPB with a new one.

• Code: CD401 ... CD413
• Description: NACK command incorrect ACK command incorrect Checksum error Receiving packet incorrect Receiving packet analysis error ACK receiving timeout Retransmission timeout Touch panel board error Touch panel type mismatch Electrostatic touch panel operation mode error Detection timing When abnormality is found in the communication of controller.
• Causes: MFP board (MFPB)
• Remedy: 1 Check whether there is a strong electromagnetic noise source near the main body. 2 Check the connectors on MFPB for proper connection and correct as necessary. 3 Replace MFPB

• Code: CDF50, CDF70, CDFA0
• Description: ASIC image version failure ASIC image access failure ASIC image error Detection timing Communication error is detected between the MFP board (MFPB) and the CCD board (CCDB).
• Causes: • MFP board (MFPB) • CCD board (CCDB)
• Remedy: 1 Check the connector between MFPB and CCDB for proper connection, and correct as necessary. 2 Update the firmware. 3 Replace CCDB 4 Replace MFPB

• Code: CDF51, CDF71, CDFA1
• Description: ASIC image version failure (back side) ASIC image access failure (back side) ASIC image error (back side) Detection timing: Communication error is detected between the MFP board (MFPB) and the dual scan image processing board (DSIPB).
• Causes: • MFP board (MFPB) • Dual scan image processing board (DSIPB)
• Remedy: 1 Check the connector between MFPB and DSIPB for proper connection, and correct as necessary. 2 Update the firmware. 3 Replace DSIPB 4 Replace MFPB

• Code: CE001 ... CE007
• Description: Abnormal message queue Task error Event error Memory access error Header access error DIMM initialize error
• Causes: MFP board (MFPB)
• Remedy: 1 Check the connectors on MFPB for proper connection and correct as necessary. 2 Replace MFPB

• Code: CE002
• Description: Message and method parameter failure. MFP board (MFPB) is faulty.
• Causes: • MFP board (MFPB) • Hard disk
• Remedy: 1 Turn OFF the main power switch and turn it ON again, and conduct the following setting. [Service Mode] -> [System 1] -> [Initialization] -> [Clear All Data]. 2 Format hard disk 3 Replace the hard disk. 4 Replace MFPB