• Code: 263-0001-05
• Description: Current Sensor error
• Causes: It was detected that the value of the Current Sensor was higher than the upper limit.
• Remedy: [Related parts] - Harnesses from the AC Driver PCB to the Main Driver PCB 1. AC Driver PCB (UN20/J615) to Relay Connector (13P) (Unit of replacement: CABLE, SIGNAL) 2. Relay Connector (13P) to Main Driver PCB (UN78/J103) (Unit of replacement: CABLE, MAIN DRIVER RELAY) - AC Driver PCB (Unit of replacement: AC DRIVER PCB ASS'Y) - Main Driver PCB (UN78) (Unit of replacement: MAIN DRIVE DRIVER PCB ASS'Y) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 263-0002-05
• Description: Current Sensor error
• Causes: It was detected that the value of the Current Sensor was lower than the lower limit.
• Remedy: [Related parts] - Harnesses from the AC Driver PCB to the Main Driver PCB 1. AC Driver PCB (UN20/J615) to Relay Connector (13P) (Unit of replacement: CABLE, SIGNAL) 2. Relay Connector (13P) to Main Driver PCB (UN78/J103) (Unit of replacement: CABLE, MAIN DRIVER RELAY) - AC Driver PCB (Unit of replacement: AC DRIVER PCB ASS'Y) - Main Driver PCB (UN78) (Unit of replacement: MAIN DRIVE DRIVER PCB ASS'Y) [Remedy] Check/replace the related harness/cable, connector and parts.

• 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] - Harness between the Reader Scanner Unit (UN2/J1101) and the Reader Controller PCB (UN1/ J106) (Unit of replacement: FLEXIBLE FLAT CABLE UNIT) - Harness between the Reader Controller PCB (UN1/J109) and the Main Controller PCB 2 (PWB02/J4031) (Unit of replacement: CABLE, INTERFACE) - Reader Scanner Unit (UN2) (Unit of replacement: SCANNER UNIT, READER) - Reader Controller PCB (UN1) (Unit of replacement: READER CONTROLLER PCB ASSEMBLY) [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] - Harness between the Reader Scanner Unit (UN2/J1101) and the Reader Controller PCB (UN1/ J106) (Unit of replacement: FLEXIBLE FLAT CABLE UNIT) - Harness between the Reader Controller PCB (UN1/J109) and the Main Controller PCB 2 (PWB02/J4031) (Unit of replacement: CABLE, INTERFACE) [Remedy] Check/replace the related harness/cable, connector and parts.

• 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] - Harness between the DADF Scanner Unit (J1102) and the Reader Controller PCB (UN1/J105) (Unit of replacement: FLEXIBLE FLAT CABLE UNIT) - Harness between the Reader Controller PCB (UN1/J109) and the Main Controller PCB 2 (PWB02/J4031) (Unit of replacement: CABLE, INTERFACE) - DADF Scanner Unit (Unit of replacement: SCANNER UNIT, ADF) - Reader Controller PCB (UN1) (Unit of replacement: READER CONTROLLER PCB ASSEMBLY) [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] - Harness between the DADF Scanner Unit (J1102) and the Reader Controller PCB (UN1/J105) (Unit of replacement: FLEXIBLE FLAT CABLE UNIT) - Harness between the Reader Controller PCB (UN1/J109) and the Main Controller PCB 2 (PWB02/J4031) (Unit of replacement: CABLE, INTERFACE) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 302-0001-04
• Description: Error in paper front white shading
• Causes: An access error to the paper front white shading RAM or a paper front white shading value that was higher than the specified value was detected.
• Remedy: [Related parts] - Harness between the Reader Scanner Unit (UN2/J1101) and the Reader Controller PCB (UN1/ J106) (Unit of replacement: FLEXIBLE FLAT CABLE UNIT) - Harness between the Reader Controller PCB (UN1/J109) and the Main Controller PCB 2 (PWB02/J4031) (Unit of replacement: CABLE, INTERFACE) - Reader Scanner Unit (UN2) (Unit of replacement: SCANNER UNIT, READER) - Reader Controller PCB (UN1) (Unit of replacement: READER CONTROLLER PCB ASSEMBLY) [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: 302-0002-04
• Description: Error in paper front black shading
• Causes: An access error to the paper front black shading RAM or a paper front black shading value that was higher than the specified value was detected.
• Remedy: [Related parts] - Harness between the Reader Scanner Unit (UN2/J1101) and the Reader Controller PCB (UN1/ J106) (Unit of replacement: FLEXIBLE FLAT CABLE UNIT) - Harness between the Reader Controller PCB (UN1/J109) and the Main Controller PCB 2 (PWB02/J4031) (Unit of replacement: CABLE, INTERFACE) - Reader Scanner Unit (UN2) (Unit of replacement: SCANNER UNIT, READER) - Reader Controller PCB (UN1) (Unit of replacement: READER CONTROLLER PCB ASSEMBLY) [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