⚠
warning HP
Error Code LED is blinking and one Ink Alert light is on (newly installed)
A newly-installed ink cartridge might be counterfeit or previously used.
? What Causes This
Issues with recently installed ink cartridge.
✓ How to Fix It
Ensure the new cartridge came from a reliable source and is not old. Follow on-screen messages for further actions, then replace ink cartridges when quality degrades.
Source: page 6 of the official manual
From the manual
This error code appears in:
HP Deskjet Ink Advantage 2135 All IN One Printer