!!
critical HP
Error Code Continuous beep for extended periods
Internal power supply problem or excessive electrical load.
? What Causes This
Power issues, faulty internal hardware (e.g., power supplies).
✓ How to Fix It
- Disconnect all non-essential power-consuming peripherals.
- Test the device without any additional connected devices to isolate the issue.
- If the problem persists, contact HP Customer Care for repair.
Source: page 45 of the official manual
From the manual
This error code appears in:
HP Laserjet 2055 Printer