• Code: 302-0101-04
• Description: Error in paper back white shading
• Causes: An access error to the paper back white shading RAM or a paper back white shading value out of specification was detected.
• Remedy: [Related parts] R1.00 - Harness between the Reader Controller PCB (UN_BO1/J4) and the DADF Driver PCB (PCB1/ J401) - DADF Driver PCB (PCB1) - Reader Controller PCB (UN_BO1) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the Reader Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMRES

• Code: 302-0102-04
• Description: Error in paper back black shading
• Causes: An access error to the paper back black shading RAM or a paper back black shading value out of specification was detected.
• Remedy: [Related parts] R1.00 - Harness between the Reader Controller PCB (UN_BO1/J4) and the DADF Driver PCB (PCB1/ J401) - DADF Driver PCB (PCB1) - Reader Controller PCB (UN_BO1) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the Reader Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMRES

• Code: 350
• Description: System error
• Causes: System error
• Remedy: Contact the service company office

• Code: 351
• Description: System error
• Causes: Main Controller PCB communication error.
• Remedy: Check/replace the Main Controller PCB

• Code: 354
• Description: System error
• Causes: System error
• Remedy: Contact the service company office

• Code: 355
• Description: System error
• Causes: System error
• Remedy: Contact the service company office

• Code: 400-0001-04
• Description: Communication error
• Causes: A communication error between the Reader Controller PCB and the DADF Driver PCB was detected.
• Remedy: [Related parts] R1.00 - Harness between the Reader Controller PCB (UN_BO1/J4) and the DADF Driver PCB (PCB1/ J401) - Harness between the Reader Controller PCB (UN_BO1/J104) and the DADF Driver PCB (PCB1/ J402) - DADF Driver PCB (PCB1) - Reader Controller PCB (UN_BO1) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the Reader Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMRES

• Code: 400-0002-04
• Description: Communication error
• Causes: A communication error between the Reader Controller PCB and the DADF Driver PCB was detected.
• Remedy: [Related parts] R1.00 - Harness between the Reader Controller PCB (UN_BO1/J4) and the DADF Driver PCB (PCB1/ J401) - Harness between the Reader Controller PCB (UN_BO1/J104) and the DADF Driver PCB (PCB1/ J402) - DADF Driver PCB (PCB1) - Reader Controller PCB (UN_BO1) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the Reader Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> RSRAMRES