!
error HP
Error Code HP ePrint light flashes for three seconds
The wireless capability of the printer is disabled.
? What Causes This
Printer settings or setup issues.
✓ How to Fix It
Change the wireless settings; review the test report from running a wireless test. Contact support if unresolved.
Source: page 45 of the official manual
From the manual
This error code appears in:
HP Ink Tank Wireless 416