• Code: B2
• Description: Gain control data level error for scanning. (Not used.)
• Causes:
• Remedy: CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.

• Code: B3
• Description: Scan area left edge detection error. (Not used.)
• Causes:
• Remedy: CIS defective Replace the scanner cover (scanner unit). White film stained in the scanner unit. Replace the scanner cover (scanner unit).

• Code: B4
• Description: Scan area right edge detection error. (Not used.)
• Causes:
• Remedy: CIS defective Replace the scanner cover (scanner unit). White film stained in the scanner unit. Replace the scanner cover (scanner unit).

• Code: B5
• Description: Horizontal scanning edge reduction detection error in scanning area setting (Not used.)
• Causes:
• Remedy:

• Code: B6
• Description: Horizontal scanning edge enlargement detection error in scanning area setting (Not used.)
• Causes:
• Remedy:

• Code: B7
• Description: A/D converter reference voltage error (at High level). (Not used.)
• Causes: Main PCB defective
• Remedy: Replace the main PCB.

• Code: B8
• Description: A/D converter reference voltage error (at Low level). (Not used.)
• Causes: Main PCB defective
• Remedy: Replace the main PCB.

• Code: B9
• Description: Light emission intensity error of the LED array (Exceeding the upper limit).
  CIS defective Main PCB defective
• Causes:
• Remedy: CIS defective Replace the scanner cover (scanner unit). Main PCB defective Replace the main PCB.