!
error HP
Error Code Fast blinking light
Wireless error detected.
? What Causes This
Wireless connection failure or network issue.
✓ How to Fix It
- Refer to the message displayed on the printer control panel.
- Visit www.hp.com/go/wifihelp for wireless setup assistance.
- Restart the printer and reconnect to the network.
Source: page 1 of the official manual
From the manual
This error code appears in:
HP Officejet 3830 All-in-One Printer