• Code: CE301 ... CE305
• Description: • CE301: Referring incorrect memory • CE302: Incorrect command • CE303: Finished due to error inside Qt library • CE304: Finished due to error outside Qt library • CE305: Program forced to stop.Error occurred with the process inside the MFP controller.
• Causes: MFP board (MFPB)
• Remedy: 1. Check the connectors on MFPB for proper connection and correct as necessary. 2. Replace MFPB. 3. Acquire the debug logs in [Service Mode] -> [Debug Settings] and analyze them.

• Code: CED01
• Description: The authentication application information does not exist in the hard disk/eMMC board in the enhanced server authentication state. With “Enhanced Server Authentication” set, no authentication application registration information is found in the hard disk or the eMMC board (eMMC).
• Causes: • eMMC board (eMMC) • Hard disk (A) (HDD (A)) • Hard disk (B) (HDD (B): HD-524)
• Remedy: 1. Turn OFF and ON the main power switch. 2. Check the connector from MFPB to hard disk for proper connection and correct as necessary. 3. Check the connector from eMMC to MFPB for proper connection and correct as necessary. 4. Logically format the hard disk. 5. Replace the hard disk. (HDD (A) / HDD (B)) 6. If the above actions do not solve the problem, contact KM.

• Code: CEEE1, CEEE3
• Description: • CEEE1: MFP board (MSC) malfunction • CEEE3: MFP board (ENG) malfunction
• Causes: MFP board (MFPB)
• Remedy: 1. Check the connectors on MFPB for proper connection and correct as necessary. 2. Replace MFPB.

• Code: CEEE2
• Description: Scanner section malfunction.
• Causes: • LED exposure unit • CCD board (CCDB) • Scanner drive board (SCDB)
• Remedy: 1. Correct the connector connection between CCDB and SCDB if faulty. 2. Replace SCDB 3. Replace CCDB

• Code: D-1
• Description: Split line detect (front side). • While recovering from the power save mode or when the main power switch and power key are ON, it detects whether or not stain exist at the document reading glass when the DF is closed. This warning will be displayed if the original is set to DF when stain exist. • The thin line detection level and the warning display can be changed by [Service Mode] -> [System 2] -> [ADF Scan Glass Contamin. Set.] -> [Front Side].
• Causes: <When DF-629 is installed> • Glass cleaning motor (M4) • Document reading glass cleaning sensor (PS12) • DF control board (DFCB) <When DF-704 is installed> • Document reading glass cleaning motor (M6) • Document reading glass cleaning sensor (PS13) • DF control board (DFCB)
• Remedy: When DF-629 is installed 1. Wipe clean the document reading glass surface. 2. Check the glass cleaning roller unit for proper installation and correct if necessary. Clean the glass cleaning roller unit if dirty. 3. Select [Service Mode] -> [System 2] ->[ADF Scan Glass Contamin. Set.] -> [Front Side], and change the setting. 4. Check the DFCB connector for proper connection and correct as necessary. 5. M4 operation check. 6. Replace the glass cleaning roller unit. 7. Replace DFCB. When DF-704 is installed 1. Wipe clean the document reading glass surface. 2. Check the front side glass cleaning roller unit for proper installation and correct if necessary. Clean the front side glass cleaning roller unit if dirty. 3. Select [Service Mode] -> [System 2] ->[ADF Scan Glass Contamin. Set.] -> [Front Side], and change the setting. 4. Check the DFCB connector for proper connection and correct as necessary. 5. M6 operation check 6. Replace the front side glass cleaning roller unit. 7. Replace DFCB.

• Code: D-3
• Description: Split line detect (back side) (only when DF-704 is installed) • While recovering from the power save mode or when the main power switch and power key are ON, it detects whether or not stain exist at the back side original scanning section (CIS) when the DF is closed. This warning will be displayed if the original is set to DF when stain exist. • The thin line detection level and the warning display can be changed by [Service Mode] -> [System 2] -> [ADF Scan Glass Contamin. Set.] -> [Back Side].
• Causes: • CIS module (CIS) • CIS power supply (CISPU) • Dual scan image processing board (DSIPB)
• Remedy: 1. Wipe clean the CIS glass surface. 2. Check the back side glass cleaning roller unit for proper installation and correct if necessary. Clean the back side glass cleaning roller unit if dirty. 3. If there is a problem in the CIS module connection, correct the faulty connection. 4. Replace CIS. 5. Replace CISPU. 6. Replace DSIPB.

• Code: P-14
• Description: Skew correction trouble. The difference between the skew default position setting value and the cumulative amount of skew adjustment values goes over the predetermined value.
• Causes: • IDC sensor/Fr (IDCS/Fr) • IDC sensor/Rr (IDCS/Rr) • Drum unit/Y,M,C,K • PH relay board (PHRYB) • Front side board (FRB) • MFP board (MFPB) • PH unit
• Remedy: 1. Check the drive transmission portion of the drum unit and correct as necessary. 2. Clean the contact of the drum unit connector if dirty. 3. Reinstall or reconnect IDCS/Fr assy or IDCS/Rr assy, sensor shutter or connector, if it is installed or connected improperly. 4. Clean IDCS/Fr or IDCS/Rr if it is dirty. 5. Check the FRB connector for proper connection and correct as necessary. 6. Check the PHRYB connector for proper connection and correct as necessary. 7. Check the connectors of the MFPB for proper connection and correct as necessary. 8. FRB fuse conduction check. 9. Replace FRB. 10. Replace IDCS/Fr assy or IDCS/Rr assy. 11. Replace the drum unit. 12. Replace the PH unit. 13. Replace PHRYB. 14. Replace MFPB NOTE • After the PH unit is replaced, reset the skew default position for each color in [Service Mode] -> [Machine] -> [Print Head Skew Adj.] -> [Print Head Skew Adj.] • When this alert code is displayed, according to the list, take actions to address the problem. After the problem is resolved, select [Service Mode] -> [Machine] -> [Print Head Skew Adj.] -> [Print Head Skew Reset] and perform the skew adjustment reset.

• Code: P-21
• Description: Color regist test pattern failure. • During pre-pattern detection, pre-pattern edge (start/ end point of effective area) is not detected within the pre-pattern search area. • During detection of regist pattern at vertical/horizontal direction, pattern edge (start/end point of effective area) is not detected within the pattern search area of each unit.
• Causes: • Transfer belt unit • PH unit • IDC sensor shutter solenoid (SD2) • Front side board (FRB) • MFP board (MFPB)
• Remedy: 1. Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty. 2. Replace the transfer belt unit if the transfer belt is damaged. 3. SD2 operation check. 4. Replace the PH unit. 5. Replace FRB. 6. Replace MFPB.