• Code: CD262
• Description: Extension network adapter installation error. • When the 2nd network card settings is set to “Set” but upgrade kit (UK-216) is not installed. • Upgrade kit (UK-216) is faulty.
• Causes:
• Remedy: 1. Check the settings of the Service Mode is set to “Installed.” [Service Mode] -> [Network Settings] -> [2nd Network Settings] -> [2nd network card settings] 2. Check UK-216 connector for proper connection and correct as necessary. 3. Update the firmware. 4. MFPB ICP8 conduction check 5. Reinstall UK-216.

• Code: CD271
• Description: i-Option activated and additional memory not installed. While the i-Option is activated, the additional memory included in UK-211 is not installed.
• Causes: • MFP board (MFPB) • Memory board (MEMB; UK-211)
• Remedy: 1. Check MEMB for proper connection and correct as necessary. 2. Replace MEMB. 3. Replace MFPB.

• 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-211 and the HDD are not installed.
• Causes: • MFP board (MFPB) • Hard disk (HDD) • Memory board (MEMB; UK-211)
• Remedy: 1. Check MEMB for proper connection and correct as necessary. 2. Access [Service Mode] -> [System 2] -> [HDD] and check to see if “Installed” is selected. 3. Replace MEMB. 4. Replace the hard disk. 5. Replace MFPB.

• Code: CD313
• Description: TPM key data error. A fault occurs in the TPM key data.
• Causes:
• Remedy: 1. Touch [Recover Data] displayed at the lower right portion on the trouble screen. 2. A screen confirming whether to recover data appears. 3. Select [Yes]. 4. 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. 5. 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. 6. Replace the current MFPB with a new one. NOTE • Nonvolatile 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]

• Code: CD38E
• Description: Nonvolatile data save error (SPI-Flash) The "ISW download flag" saved in the SPI-Flash has an illegal value.
• Causes: MFP board (MFPB)
• Remedy: 1. Rewrite the firmware. 2. 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.

• 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: CD391
• Description: Nonvolatile data save error (eMMC).
• Causes:
• Remedy: • Contact the responsible people of KM before taking some countermeasures.

• Code: CD392
• Description: Nonvolatile data save error (EEPROM). The EEPROM is replaced with a new one.
• Causes: • EEPROM/1 • EEPROM/2
• Remedy: 1. Replace the following components with new ones. When the transfer belt unit and the fusing unit have been replaced with new ones, perform [New Release] in the service mode. When the transfer roller has been replaced with a new one, perform [Counter clear]. • Imaging unit/Y,M,C,K • Toner cartridge/Y,M,C,K • Transfer belt unit • Fusing unit • Transfer roller • Feed roller, separation roller (including options) 2. 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. 3. Set the various setting values in the service mode again.