• Code: CD272
• Description: i-Option activated and additional memory and HDD not installed. While the i-Option is activated, the additional memory included in UK-204 and the hard disk are not installed.
• Causes: • MFP board (MFPB) • Hard disk • Memory board/2 (MEMB/2; UK-204)
• Remedy: 1 Check the memory board/2 (MEMB/2; UK-204) for proper connection and correct as necessary. - - 2 Access [Service Mode] -> [System 2] -> [HDD] and check to see if “Installed” is selected. - - 3 Replace the memory board/2 (MEMB/2; UK-204) - - 4 Replace the hard disk - - 5 Replace MFPB

• Code: CD370
• Description: Nonvolatile data multiple errors. Multiple errors (Over 5) are detected by the abnormal check of each nonvolatile data.
• Causes:
• Remedy: 1 Touch [Yes] on the restore screen displayed on the control panel to restore data. - - NOTE • Do not replace the printer control board and SSD board at the same time with new ones or ones removed from other machines. The backup data will be lost and image failure may be caused.

• Code: CD390
• Description: Nonvolatile data checksum error. Checksum error is detected while nonvolatile data is being checked for error by each data. (The MFP board is replaced with a new one.)
• Causes:
• Remedy: 1 Touch [Yes] on the restore screen displayed on the control panel to restore data. - - NOTE • Do not replace the printer control board and SSD board at the same time with new ones or ones removed from other machines. The backup data will be lost and image failure may be caused.

• 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...CD412
• 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
• 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
• 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). 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, CE003
• Description: Abnormal message queue Task error
• Causes: MFP board (MFPB)
• Remedy: 1 Check the connectors on MFPB for proper connection and correct as necessary. - - 2 Replace MFPB