• Code: B1
• Description: Dark level offset data level error for scanning
• Causes: 1 CCD unit failure. 2 Main PCB failure.
• Remedy: 1 CCD unit failure Replace the CCD module. (CCD model) Replace the document scanner unit. (CIS model) 2 Main PCB failure Replace the main PCB ASSY.

• Code: B2
• Description: Gain control data level error for scanning
• Causes: 1 CCD unit failure. 2 Main PCB failure.
• Remedy: 1 CCD unit failure Replace the CCD module. (CCD model) Replace the document scanner unit. (CIS model) 2 Main PCB failure Replace the main PCB ASSY.

• Code: B7
• Description: A/D converter standard voltage failure; at High side
• Causes: 1 CCD unit failure. 2 Main PCB failure.
• Remedy: 1 CCD unit failure Replace the CCD module. (CCD model) Replace the document scanner unit. (CIS model) 2 Main PCB failure Replace the main PCB ASSY.

• Code: B8
• Description: A/D converter standard voltage failure; at Low side
• Causes: 1 CCD unit failure. 2 Main PCB failure.
• Remedy: 1 CCD unit failure Replace the CCD module. (CCD model) Replace the document scanner unit. (CIS model) 2 Main PCB failure Replace the main PCB ASSY.

• Code: B9
• Description: Scanning light adjustment error is detected
• Causes: 1 Scanner module failure. 2 Main PCB failure
• Remedy: 1 Scanner module failure Replace the CCD module. (CCD model) Replace the document scanner unit. (CIS model) 2 Main PCB failure Replace the main PCB ASSY.

• Code: BB
• Description: White level data error
• Causes: 1 Scanner module failure. 2 Main PCB failure
• Remedy: 1 Scanner module failure Replace the CCD module. (CCD model) Replace the document scanner unit. (CIS model) 2 Main PCB failure Replace the main PCB ASSY.

• Code: BD
• Description: Black level data error
• Causes: 1 Scanner module failure. 2 Main PCB failure
• Remedy: 1 Scanner module failure Replace the CCD module. (CCD model) Replace the document scanner unit. (CIS model) 2 Main PCB failure Replace the main PCB ASSY.

• Code: BF
• Description: ADF duplex scanning cannot be implemented due to too long document
• Causes: 1 Document front actuator 2 not operating smoothly or catching in some position. 2 Document front sensor 2 failure.
• Remedy: 1 Document front actuator 2 not operating smoothly or catching in some position. Correct smooth operation and that there is no catching of the document front actuator 2. 2 Document front sensor 2 failure Replace the document front sensor 2.