• Code: A4
• Description: 50% or more faulty of white level data. (Not used.)
• Causes:
• Remedy: CIS flat cable not connected properly Correct the connection. CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: A5
• Description: FAX scanning failure (1st time)
• Causes:
• Remedy: CIS defective White-level reference film stained in the scanner cover Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: A6
• Description: FAX scanning failure (retry)
• Causes:
• Remedy: CIS defective White-level reference film stained in the scanner cover Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: A7
• Description: Mismatch between the CIS type and ROM data
• Causes: Scanner cover containing the improper CIS type installed at repair
• Remedy: Correct the ROM data.

• Code: A8
• Description: Color parameter matching error.
• Causes: (Used for monitoring bugs at the factory.)
• Remedy:

• Code: AC
• Description: Less than 50% faulty of white level data. (Not used.)
• Causes:
• Remedy: CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: AF
• Description: CIS positioning error
• Causes:
• Remedy: CIS flat cable broken or not connected Correct the cable connection. Replace the scanner cover (scanner unit). CIS motor harness not connected properly Correct the harness connection. CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: B1
• Description: Dark level offset data level error for scanning. (Not used.)
• Causes:
• Remedy: CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.