• Code: 263-1610-05
• Description: Power supply error
• Causes: The 6 V supply to the Drum Driver PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN2/J1225) and the Drum Driver PCB (UN6/J1901) - Drum Driver PCB (UN6) - 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: 263-1611-05
• Description: Power supply error
• Causes: The 5 V supply to the Drum Driver PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness between the Drum Driver PCB (UN6/J1902) and the Multi-purpose Tray Pickup Driver PCB (UN97/J1351) - Harness connecting from the Drum Driver PCB (UN6/J1905) to the Drum Motor (Y) and Drum Motor (M) (M21/J7300 and M23/J7302) - Harness between the Drum Driver PCB (UN6/J1906) and the Drum Motor (C) (M25/J7304) - Harness between the Drum Driver PCB (UN6/J1907) and the Drum Motor (Bk) (M19/J7306) - Drum Motor (Y, M, C and Bk) (M21, M23, M25 and M19) - Multi-purpose Tray Pickup Driver PCB (UN97) - Drum Driver PCB (UN6) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 263-1613-05
• Description: Power supply error
• Causes: The 5 V supply to the Multi-purpose Tray Pickup Driver PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness between the Drum Driver PCB (UN6/J1902) and the Multi-purpose Tray Pickup Driver PCB (UN97/J1351) - Drum Driver PCB (UN6) - Multi-purpose Tray Pickup Driver PCB (UN97) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 263-1620-05
• Description: Power supply error
• Causes: The 6 V supply to the Developing Assembly Control PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN2/J1252) and the Developing Assembly Control PCB (UN96/J1308) - Developing Assembly Control PCB (UN96) - 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: 263-1621-05
• Description: Power supply error
• Causes: The 5 V supply to the Developing Assembly Control PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness connecting from the Developing Assembly Control PCB (UN96/J1310) to the Toner Container Replacement Cover Sensor and Toner Container Replacement Door Sensor (Y, M, C and Bk) (PS6/J7137, PS10/J7122, PS13/J7125, PS16/J7128 and PS7/J7138) - Harness between the Developing Assembly Control PCB (UN96/J1306) and the Front Door Lock Sensor (PS134/J8577) - Harness connecting from the Developing Assembly Control PCB (UN96/J1307) to the Toner Container ID Read Sensor (Y, M, C and Bk) (UN122/J4101, UN123/J4102, UN124/J4103 and UN125/J4104) - Related sensors - Developing Assembly Control PCB (UN96) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 263-1630-05
• Description: Power supply error
• Causes: The 6 V supply to the Fixing Feed Driver PCB was not detected.
• Remedy: [Related parts] R1.00 - Harnesses connecting the DC Controller PCB (UN2/J1222), the Drawer Unit (J8023) and the Fixing Feed Driver PCB (UN5/J1510) - DC Controller PCB (UN2) - Fixing Feed Driver PCB (UN5) [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: 263-1631-05
• Description: Power supply error
• Causes: The 5 V supply to the Fixing Feed Driver PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness connecting from the Fixing Feed Driver PCB (UN5/J1502) to the Duplex Sensor 2, 3 and 4 (PS25/J7208, PS26/J7209 and PS27/J7210) - Harness connecting from the Fixing Feed Driver PCB (UN5/J1503) to the Secondary Transfer Roller Detachment HP Sensor, Loop Sensor 1/2 and Pre-fixing Feed Position Sensor (PS22/ J7214, PS90/J7224, PS91/J7225 and PS135/J8573) - Harness connecting from the Fixing Feed Driver PCB (UN5/J1512) to the Vertical Path Merging Sensor and Pre-registration Disengagement HP Sensor (PS30/J7213 and PS137/J8622) - Harness connecting from the Fixing Feed Driver PCB (UN5/J1508) to the Core HP Sensor, Fixing Pressure Release Sensor and Half Pressure Position Sensor (PS98/J7218, PS73/J7220 and PS110/J8033) - Related sensors - Fixing Feed Driver PCB (UN5) [Remedy] Check/replace the related harness/cable, connector and parts.

• Code: 263-1632-05
• Description: Power supply error
• Causes: The 5 V supply to the Fixing Feed Driver PCB was not detected.
• Remedy: [Related parts] R1.00 - Harness connecting from the Fixing Feed Driver PCB (UN5/J1503) to the Loop Sensor 1 and 2 (PS90/J7224 and PS91/J7225) - Loop Sensor 1 and 2 (PS90 and PS91) - Fixing Feed Driver PCB (UN5) [Remedy] Check/replace the related harness/cable, connector and parts.