Using expired cartridges voids the warranty for any resulting printer damage.

The service station on the far right side cleans and caps the printheads. Over years of use, dried ink builds up, causing the wiper blades to jam or overflow.

Shake the new printhead (still in packaging) at least six times before installation.

| Light Pattern | Meaning | Action | |---------------|---------|--------| | Power on, Resume and Door Open lights on | Cover or door open | Close all doors and press Resume. | | Power on, Resume blinking, one ink light on | Ink cartridge expired | Replace cartridge or press Power+Resume three times to override. | | Power on, one printhead light blinking | Printhead missing | Install the missing printhead; if error persists, replace it. | | All lights on continuously | System error | Power cycle the printer. If repeated, contact HP support. |

For all these issues, the user manual is useless. It only tells you how to change ink and load paper. You need the .

Go to the chapter (usually Chapter 2). Find the symptom group:

That assumption is wrong.

Ink mist settles on the strip, causing blurry prints or violent slamming noises against the side walls.