• Code: 248-0001-04
• Description: EEPROM error
• Causes: The Main Controller PCB detected reading error of the Reader backup value in the Reader Controller PCB.
• Remedy: Check/replace the Reader Controller PCB (UN_BO1). [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: 248-0002-04
• Description: EEPROM error
• Causes: The Main Controller PCB failed writing of the Reader backup value in the Reader Controller PCB.
• Remedy: Check/replace the Reader Controller PCB (UN_BO1). [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: 248-0003-04
• Description: EEPROM error
• Causes: The Main Controller PCB detected an error at inspection after completion of writing of the Reader backup value in the Reader Controller PCB.
• Remedy: Check/replace the Reader Controller PCB (UN_BO1). [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: 261-0000-05
• Description: Error in Zero Cross
• Causes: Zero Cross failed to be detected for 500ms or more while the relay was ON. * The same condition is detected after the error retry is performed.
• Remedy: [Related parts] - Harness connecting from the DC Controller PCB (UN2/J303) to the AC Driver PCB (UN30/J116) - AC Driver PCB (UN30) - DC Controller PCB (UN2) [Remedy] 1.Check/replace the related harness/cable, connector and parts. 2.Replace the AC Driver PCB. 3.Replace the DC Controller PCB. [Reference] Before replacing the DC Controller PCB, back up the service mode data and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: 280-0001-04
• Description: Communication error
• Causes: Communication between the Reader Controller PCB and the Reader Scanner Unit was not completed within the specified period of time.
• Remedy: [Related parts] R1.00 - Harness between the Reader Scanner Unit (UN_BO2/J101 ) and the Reader Controller PCB (UN_BO1/J105) - Reader Scanner Unit (UN_BO2) - 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: 280-0002-04
• Description: Communication error
• Causes: Disconnection of FFC between the Reader Controller PCB and the Reader Scanner Unit was detected.
• Remedy: [Related parts] R1.00 - Harness between the Reader Scanner Unit (UN_BO2/J101 ) and the Reader Controller PCB (UN_BO1/J105) - Reader Scanner Unit (UN_BO2) - 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: 280-0101-04
• Description: Communication error
• Causes: Communication between the Reader Controller PCB and the DADF Scanner Unit was not completed within the specified period of time.
• Remedy: [Related parts] R1.00 - Harness between the Reader Controller PCB (UN_BO1/J103) 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: 280-0102-04
• Description: Communication error
• Causes: Disconnection of FFC between the Reader Controller PCB and the DADF Scanner Unit was detected.
• Remedy: [Related parts] R1.00 - Harness between the Reader Controller PCB (UN_BO1/J103) 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