• Code: 3C00
• Description: EEPROM fault 1 (main body) An EEPROM communication error of the main body occurs.
• Causes: Printer control board (PRCB)
• Remedy: 1 Check the connectors on the PRCB for proper connection and correct any faulty connection as necessary. 2 Replace PRCB.

• Code: 3C10
• Description: EEPROM fault 2 (main body) The engine serial number cannot be recovered.
• Causes: Printer control board (PRCB)
• Remedy: 1 Check the connectors on the PRCB for proper connection and correct any faulty connection as necessary. 2 Replace PRCB.

• Code: 6751
• Description: Lamp lights on and AFE gain adjustment failure. During the AFE gain adjustment, the error occurs continuously for three times after retrying in a state that the the peek value of the output data is 64 or less.
• Causes: • Scanner unit • MFP board (MFPB)
• Remedy: 1 Check the connector between scanner unit-MFPB CN102 for proper connection and correct as necessary. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, AFE surface, and shading sheet if dirty. 4 Correct reflective mirror of the scanner if faulty, or change scanner mirror. 5 Replace the scanner unit. 6 Replace MFPB.

• Code: 6790
• Description: AFE offset adjustment error. During the offset adjustment, the offset value does not fall within the predetermined range a total of three times including retries.
• Causes: • Scanner unit • MFP board (MFPB)
• Remedy: 1 Check the connector between scanner unit-MFPB CN102 for proper connection and correct as necessary. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, AFE surface, and shading sheet if dirty. 4 Correct reflective mirror of the scanner if faulty, or change scanner mirror. 5 Replace the scanner unit. 6 Replace MFPB.

• Code: 6791
• Description: AFE register setting error There is a mismatch between the set default values of the AFE gain/offset and the gain/offset values read thereafter.
• Causes: • Scanner unit • MFP board (MFPB)
• Remedy: 1 Check the connector between scanner unit-MFPB CN102 for proper connection and correct as necessary. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, AFE surface, and shading sheet if dirty. 4 Correct reflective mirror of the scanner if faulty, or change scanner mirror. 5 Replace the scanner unit. 6 Replace MFPB.

• Code: 6792
• Description: White reference plate search error The black/white edge on the shading plate cannot be detected during initialization.
• Causes: • Scanner unit • MFP board (MFPB)
• Remedy: 1 Check the connector between scanner unit-MFPB CN102 for proper connection and correct as necessary. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, AFE surface, and shading sheet if dirty. 4 Correct reflective mirror of the scanner if faulty, or change scanner mirror. 5 Replace the scanner unit. 6 Replace MFPB.

• Code: 6793
• Description: Scanner communication error A communication error of some sort occurs between the controller and the scanner.
• Causes: • Scanner unit • MFP board (MFPB)
• Remedy: 1 Check the connector between scanner unit-MFPB CN102 for proper connection and correct as necessary. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, AFE surface, and shading sheet if dirty. 4 Correct reflective mirror of the scanner if faulty, or change scanner mirror. 5 Replace the scanner unit. 6 Replace MFPB.

• Code: 9401
• Description: Exposure lamp lighting failure detected. The intensity of the lamp is not stabilized within a predetermined period of time during the lamp stabilization check process in a lamp warm-up cycle.
• Causes: • Scanner unit • MFP board (MFPB)
• Remedy: 1 Check the connector between scanner unit-MFPB CN102 for proper connection and correct as necessary. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, AEF surface, and shading sheet if dirty. 4 Correct reflective mirror of the scanner if faulty, or change scanner mirror. 5 Replace the scanner unit. 6 Replace MFPB.