• Code: 260-0001-05
• Description: Power supply error
• Causes: An error in 3.3 VA power supply was detected at startup.
• Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN1/J171) and the Environment Sensor (UN50/J810) - Harness between the DC Controller PCB (UN1/J120) and the Primary Transfer/Bk Developing Charging High-Voltage PCB (UN17/J622) - Harness between the DC Controller PCB (UN1/J122) and the Secondary Transfer High-Voltage PCB (UN18/J657) - Harness between the DC Controller PCB (UN1/J123) and the Charging High-Voltage PCB (YMC) (UN77/J641) - Harness between the DC Controller PCB (UN1/J124) and the Developing High-Voltage PCB (YMC) (UN76/J611) - DC Controller PC (UN1) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 260-0002-05
• Description: Power supply error
• Causes: An error in 5 V power supply was detected at startup of CPU.
• Remedy: [Related parts] 1.00 - Sensor harness for 5 V power supply - Harness between the Feed/Drum Driver PCB (UN2/J214) and the Drawer Unit (J5012) - Harness between the Feed/Drum Driver PCB (UN2/J216) and the Second/Third Delivery Unit (J5032) - Harness between the Feed/Drum Driver PCB (UN2/J219) and the Right Door Relay PCB (UN61/ J1100) - Harness between the DC Controller PCB (UN1/J111) and the Front Driver PCB (UN3/J301) - Harness between the DC Controller PCB (UN1/J170) and the Feed/Drum Driver PCB (UN2/J202) - Harness between the DC Controller PCB (UN1/J110) and the Finisher (J1103) - Harness between the DC Controller PCB (UN1/J101) and the Riser PCB (J10) - Feed/Drum Driver PCB (UN2) - Right Door Relay PCB (UN61) - Front Driver PCB (UN3) - Riser PCB - DC Controller PCB (UN1) [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: 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/J1101 (J2101)) and the Reader Controller PCB (UN_BO1/J105 (J106)) - 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/J1101 (J2101)) and the Reader Controller PCB (UN_BO1/J105 (J106)) - 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/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: 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/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: 302-0001-04
• 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 out of specification was detected.
• Remedy: [Related parts] R1.00 - Harness between the Reader Scanner Unit (UN_BO2/J1101 (J2101)) and the Reader Controller PCB (UN_BO1/J105 (J106)) - 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: 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 out of specification was detected.
• Remedy: [Related parts] R1.00 - Harness between the Reader Scanner Unit (UN_BO2/J1101 (J2101)) and the Reader Controller PCB (UN_BO1/J105 (J106)) - 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