• Code: 49
• Description: Yellow drum unit is at the end of life.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: 4A
• Description: Magenta drum unit is at the end of life.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: 4B
• Description: Cyan drum unit is at the end of life.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: 4C
• Description: The black drum unit will reach the end of life soon.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: 4D
• Description: The yellow drum unit will reach the end of life soon.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: 4E
• Description: The magenta drum unit will reach the end of life soon.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: 4F
• Description: The cyan drum unit will reach the end of life soon.
• Causes: 1 Main PCB failure
• Remedy: Replace the main PCB ASSY.

• Code: 50
• Description: Drum unit is at the end of life.
• Causes: 1 The part displayed on the LCD reached the end of life. 2 Main PCB failure
• Remedy: 1 The part displayed on the LCD reached the end of life Replace the part displayed on the LCD and reset the counter of each part. (Refer to “2.2 Parts Life Reset Function” in Chapter 5.) 2 Main PCB failure Replace the main PCB ASSY.