• Code: 012-0401-05
• Description: Drum speed detection error (Bk)
• Causes: The Drum Speed Detection PCB (Bk) 1/2 detected a rotation signal error.
• Remedy: [Related parts] R1.00 - Harness connecting from the Drum Driver PCB (UN6/J1907) to the Drum Speed Detection PCB (Bk) 1/2 and Drum Motor (Bk) (UN18/J7310, UN19/J7311 and M19/J7306) - Drum Speed Detection PCB (Bk) 1/2 (UN18 and UN19) - Drum Motor (Bk) (M19) - Drum Unit (Bk) - Drum Driver PCB (UN6) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Check that the Encoder Wheel of the Drum Speed Detection PCB (Bk) 1/2 is properly installed. 2. Clean the Drum Speed Detection PCB (Bk) 1/2 and the Encoder Wheel. 3. Set the Drum Unit (Bk) again. 4. Check/replace the related harness/cable, connector and parts.

• Code: 012-0402-05
• Description: Drum speed detection error (Bk)
• Causes: The Drum Speed Detection PCB (Bk) 1 detected a rotation signal error.
• Remedy: [Related parts] R1.00 - Harness connecting from the Drum Driver PCB (UN6/J1907) to the Drum Speed Detection PCB (Bk) 1 and Drum Motor (Bk) (UN18/J7310 and M19/J7306) - Drum Speed Detection PCB (Bk) 1 (UN18) - Drum Motor (Bk) (M19) - Drum Unit (Bk) - Drum Driver PCB (UN6) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Clean the Drum Speed Detection PCB (Bk) 1 and the Encoder Wheel. 2. Set the Drum Unit (Bk) again. 3. Check/replace the related harness/cable, connector and parts.

• Code: 012-0403-05
• Description: Drum speed detection error (Bk)
• Causes: The Drum Speed Detection PCB (Bk) 2 detected a rotation signal error.
• Remedy: [Related parts] R1.00 - Harness between the Drum Driver PCB (UN6/J1907) and the Drum Speed Detection PCB (Bk) 2 (UN19/J7311) - Drum Speed Detection PCB (Bk) 2 (UN19) - Drum Driver PCB (UN6) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Clean the Drum Speed Detection PCB (Bk) 2. 2. Check/replace the related harness/cable, connector and parts.

• Code: 012-0406-05
• Description: Drum Motor (Bk) rotation error
• Causes: The Drum Motor (Bk) is not rotating at the specified speed, or it is stopped.
• Remedy: [Related parts] R1.00 - Harness between the Drum Driver PCB (UN6/J1907) and the Drum Motor (Bk) (M19/J7306) - Drum Motor (Bk) (M19) - ITB Cleaning Blade - Drum Driver PCB (UN6) [Remedy] Perform the following in the order while checking whether the error is cleared. - Check that the Intermediate Transfer Belt is not displaced. - Check/replace the related harness/cable, connector and parts.

• Code: 012-0501-05
• Description: ITB speed detection error
• Causes: The ITB Drive Roller Speed Detection PCB 1/2 detected a rotation signal error.
• Remedy: [Related parts] R1.00 - Harnesses connecting from the DC Controller PCB (UN2/J1242) to the Drawer Unit (J8050) to the ITB Drive Roller Speed Detection PCB 1/2 and ITB Drive Motor (UN16/J7318, UN17/J7319 and M3/J7518) - ITB Drive Roller Speed Detection PCB 1/2 (UN16 and UN17) - ITB Drive Motor (M3) - Drum Drive Unit - Drum Unit (C, M, Y, Bk) - DC Controller PCB (UN2) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Check that the Encoder Wheel of the ITB Drive Roller Speed Detection PCB 1/2 is properly installed. 2. Clean the ITB Drive Roller Speed Detection PCB 1/2 and the Encoder Wheel. 3. Set the Drum Units (all colors) again. 4. 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: 012-0502-05
• Description: ITB speed detection error
• Causes: The ITB Drive Roller Speed Detection PCB 1 detected a rotation signal error.
• Remedy: [Related parts] R1.00 - Harnesses connecting from the DC Controller PCB (UN2/J1242) to the Drawer Unit (J8050) to the ITB Drive Roller Speed Detection PCB 1 and ITB Drive Motor (UN16/J7318 and M3/J7518) - ITB Drive Roller Speed Detection PCB 1/2 (UN16 and UN17) - ITB Drive Motor (M3) - Drum Unit (C, M, Y, Bk) - DC Controller PCB (UN2) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Clean the ITB Drive Roller Speed Detection PCB 1 and the Encoder Wheel. 2. Set the Drum Units (all colors) again. 3. 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: 012-0503-05
• Description: ITB speed detection error
• Causes: The ITB Drive Roller Speed Detection PCB 2 detected a rotation signal error.
• Remedy: [Related parts] R1.00 - Harnesses connecting from the DC Controller PCB (UN2/J1242) to the Drawer Unit (J8050) to the ITB Drive Roller Speed Detection PCB 2 and ITB Drive Motor (UN17/J7319 and M3/J7518) - ITB Drive Roller Speed Detection PCB 2 (UN17) - ITB Drive Motor (M3) - Drum Unit (C, M, Y, Bk) - DC Controller PCB (UN2) [Remedy] Perform the following in the order while checking whether the error is cleared. 1. Clean the ITB Drive Roller Speed Detection PCB 2. 2. 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: 012-0506-05
• Description: ITB Drive Motor rotation error
• Causes: The ITB Drive Motor is not rotating at the specified speed, or it is stopped.
• Remedy: [Related parts] R1.00 - Harnesses connecting the DC Controller PCB (UN2/J1242), the Drawer Unit (J8050) and the ITB Drive Motor (M3/J7518) - ITB Drive Motor (M3) - ITB Cleaning Blade - DC Controller PCB (UN2) [Remedy] Perform the following in the order while checking whether the error is cleared. - Check that the Intermediate Transfer Belt is not displaced. - 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