What does LSU Error [zzz] mean?

The Laser Scanning Unit (LSU) is experiencing an issue, possibly due to the LSU motor not operating or an irregular laser beam detection signal.

• LSU motor not operating.
• Laser beam detect signal missing or irregular.
• Abnormal LSU motor drive signal.

Click steps to track your progress.

1. 1

   Turn off the printer, wait a few seconds, then turn it back on.

2. 2

   Listen for the LSU motor rotation noise during printer startup.

3. 3

   Ensure the printer has proper ventilation and a stable power connection.