• Code: CD3C0
• Description: New board detection. The 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: CD401 ... CD413
• Description: • CD401: NACK command incorrect • CD402: ACK command incorrect • CD403: Checksum error • CD404: Receiving packet incorrect • CD405: Receiving packet analysis error • CD406: ACK receiving timeout • CD407: Retransmission timeout • CD411: Touch panel board error • CD412: Touch panel type mismatch • CD413: Electrostatic touch panel operation mode error. 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: CD601, CD602, CD603
• Description: Trouble related to security.
• Causes:
• Remedy: 1. 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: CD701, CD702, CD703
• Description: • CD701: Mechanical controller flash ROM writing error • CD702: Mechanical controller flash ROM device error • CD703: FW download communication fault Trouble detection condition CD701: A mechanical controller flash ROM writing sequence is interrupted in its mid-operation due to, for example, power being shut off. CD702: An erase error or other device fault occurs during mechanical controller flash ROM writing. CD703: Irregular data is received during FW downloading. • Places are changed in the order of write completion pulses. • A write completion pulse is received for a memory for which binary writing is not permitted. • Final checksum mismatch in FW download • Two-minute timeout (no response from CTL, the number of transfer data items less than the specified)
• Causes: MFP board (MFPB)
• Remedy: 1. Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace MFPB.

• Code: CD705, CD706
• Description: • CD705: Mechanical controller sub-CPU flash ROM device error • CD706: Mechanical controller sub-CPU flash ROM error. Trouble detection condition • CD705: An erase error or other device fault occurs during mechanical controller sub-CPU flash ROM writing. • CD706: A data error is determined to exist in the mechanical controller sub-CPU flash ROM during starting.
• Causes: MFP board (MFPB)
• Remedy: 1. Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord, and turn ON the main power switch. 2. Rewrite the firmware. 3. Replace MFPB.

• Code: CDC00
• Description: EEPROM fault 1. An EEPROM communication error of the main body occurs.
• Causes: MFP board (MFPB)
• Remedy: 1. Check the connectors on the MFPB for proper connection and correct any faulty connection as necessary. 2. Replace MFPB.

• Code: CDC10
• Description: EEPROM fault 2. The engine serial number cannot be recovered.
• Causes: MFP board (MFPB)
• Remedy: 1. Check the connectors on the MFPB for proper connection and correct any faulty connection as necessary. 2. Replace MFPB.

• Code: CDF50, CDF70, CDFA0
• Description: • CDF50: ASIC image version failure • CDF70: ASIC image access failure • CDFA0: ASIC image error. Communication error is detected between the MFP board (MFPB) and the CCD board (CCDB).
• Causes: • Scanner unit • MFP board (MFPB)
• Remedy: 1. Check the connector between the scanner unit-MFPB CN23 for proper connection and correct as necessary. 2. Rewrite the firmware. 3. Replace the scanner unit. 4. Replace MFPB.