• Code: E280-0101
• Description: Communication error between Reader Controller PCB (PCB1) and Scanner Unit (Paper Back) (Reader). Within the specified period of time, communication between the Reader Controller PCB and Scanner Unit (Paper Back) was not started.
• Remedy: 1. Connector disconnection/open circuit of the Scanner Unit (Paper Back) (Reader) ?¨ Connect the connector/ Replace the harness. 2. Connector disconnection/open circuit of the Reader Controller PCB (PCB1). ?¨ Connect the connector/ Replace the harness. 3. Replace the Scanner Unit (Reader). 4. Replace the Reader Controller PCB.

• Code: E280-0102
• Description: Harness disconnection between Reader Controller PCB (PCB1) and Scanner Unit (Paper Back) (Reader). Harness disconnection between Reader Controller PCB (PCB1) and Scanner Unit (Paper Back) (Reader).
• Remedy: 1. Connector disconnection/open circuit of the Scanner Unit (Paper Back) (Reader) ?¨ Connect the connector/ Replace the harness. 2. Connector disconnection/open circuit of the Reader Controller PCB (PCB1). ?¨ Connect the connector/ Replace the harness.

• Code: E301-0001
• Description: Front side light intensity failure. The light intensity amount at front side shading is less than the standard level.
• Remedy: Replace the optical unit (reader)

• Code: E301-0101
• Description: Backside light intensity failure. The light intensity amount at backside shading is less than the standard level.
• Remedy: Replace the optical unit (DADF)

• Code: E302-0001
• Description: Front side white shading failure. Shading RAM access failure occurred, or the shading value is less than or more than the specified level.
• Remedy: 1. Connector disconnection/open circuit of the Scanner Unit (Paper Front) (Reader). ?¨ Connect the connector/ Replace the harness. 2. Connector disconnection/open circuit of the Reader Controller PCB (PCB1). ?¨ Connect the connector/ Replace the harness. 3. Replace the Scanner Unit (Paper Front) (Reader). 4. Replace the Reader Controller PCB.

• Code: E302-0002
• Description: Error in paper front black shading. Shading RAM access error, or the shading value was either below or higher than the specified level.
• Remedy: 1. Connector disconnection/open circuit of the Scanner Unit (Paper Front) (Reader). ?¨ Connect the connector/ Replace the harness. 2. Connector disconnection/open circuit of the Reader Controller PCB (PCB1). ?¨ Connect the connector/ Replace the harness. 3. Replace the Scanner Unit (Paper Front) (Reader). 4. Replace the Reader Controller PCB.

• Code: E302-0101
• Description: Backside white shading failure. Shading RAM access failure occurred, or the shading value is less than or more than the specified level.
• Remedy: 1. Connector disconnection/open circuit of the Scanner Unit (Paper Back) (Reader) ?¨ Connect the connector/ Replace the harness. 2. Connector disconnection/open circuit of the Reader Controller PCB (PCB1). ?¨ Connect the connector/ Replace the harness. 3. Replace the Scanner Unit (Paper Back) (Reader). 4. Replace the Reader Controller PCB.

• Code: E302-0102
• Description: Error in paper back black shading. Shading RAM access error, or the shading value was either below or higher than the specified level.
• Remedy: 1. Connector disconnection/open circuit of the Scanner Unit (Paper Back) (Reader) ?¨ Connect the connector/ Replace the harness. 2. Connector disconnection/open circuit of the Reader Controller PCB (PCB1). ?¨ Connect the connector/ Replace the harness. 3. Replace the Scanner Unit (Paper Back) (Reader). 4. Replace the Reader Controller PCB.