• Code: CD390
• Description: Nonvolatile data checksum error
• 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.
• Remedy: • MFP board (MFPB) • SSD board (SSDB) 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. When abnormality is found in the communication of controller.
• 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: CD601...CD603
• Description: Trouble related to security.
• Remedy: Turn OFF the main power switch, wait for 10 sec. or more, and turn ON the main power switch. If the above actions do not solve the problem, contact KM.

• Code: CDF50, CDF70, CDFA0
• Description: ASIC image version failure ASIC image access failure ASIC image error. Communication error is detected between the MFP board (MFPB) and the CCD board (CCDB).
• Remedy: • MFP board (MFPB) • CCD board (CCDB) 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). Communication error is detected between the MFP board (MFPB) and the dual scan image processing board (DSIPB).
• Remedy: • MFP board (MFPB) • Dual scan image processing board (DSIPB) 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, CE003
• Description: Abnormal message queue. Task error. MFP board (MFPB) is faulty.
• 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.
• Remedy: • MFP board (MFPB) • Hard disk 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