• Code: 263-1800-05
• Description: Power supply error
• Causes: The 3.3 V supply to the Laser Interface PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN2/J1259) and the Laser Interface PCB (UN106/J15) - DC Controller PCB (UN2) - Laser Interface PCB (UN106) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the DC 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> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: 263-1900-05
• Description: Power supply error
• Causes: The 5 V supply to the Laser Interface PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN2/J1259) and the Laser Interface PCB (UN106/J15) - Laser Interface PCB (UN106) - DC Controller PCB (UN2) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the DC 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> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: 263-1A00-05
• Description: Power supply error
• Causes: The 12 V supply to the DC Controller PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN2/J1200) and the Relay PCB (UN7/J1817) - Relay PCB (UN7) - DC Controller PCB (UN2) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the DC 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> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: 263-1A10-05
• Description: Power supply error
• Causes: The 5 V supply to the Laser Interface PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN2/J1259) and the Laser Interface PCB (UN106/J15) - Laser Interface PCB (UN106) - DC Controller PCB (UN2) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the DC 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> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: 264-1000-05
• Description: Power supply error
• Causes: The 5 V supply to the DC Controller PCB and Multi-purpose Tray Paper Sensor were not detected.
• Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN2/J1258) and the Riser PCB (UN159/J8518) - Harness between the DC Controller PCB (UN2/J1225) and the Drum Driver PCB (UN6/J1901) - Harness between the Drum Driver PCB (UN6/J1902) and the Multi-purpose Tray Pickup Driver PCB (UN97/J1351) - Harness between the Multi-purpose Tray Pickup Driver PCB (UN97/J1359) and the Multi-purpose Tray Paper Sensor (PS37/J8539) - Multi-purpose Tray Paper Sensor (PS37) - Multi-purpose Tray Pickup Driver PCB (UN97) - Drum Driver PCB (UN6) - Riser PCB (UN159) - DC Controller PCB (UN2) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the DC 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> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: 264-2000-05
• Description: Power supply error
• Causes: The 3.3 V output from the DC Controller PCB was not detected.
• Remedy: Check/replace the DC Controller PCB (UN2). [Reference] Before replacing the DC 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> 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 (UN2/J1101) and the Reader Controller PCB (UN1/ J106) - Harness between the Reader Controller PCB (UN1/J109) and the Riser PCB (UN159/J7) - Reader Scanner Unit (UN2) - Reader Controller PCB (UN1) [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: Check/replace the harness between the Reader Scanner Unit (UN2/J1101) and the Reader Controller PCB (UN1/J106).