Hi @Gahndi2
Welcome to the HP Support Community. I'd be happy to assist you.
That's correct. For printing, the HP Deskjet 3520 e-All-in-One Printer needs all the 4 ink cartridges to have a minimum amount of ink. This is as per design. Kindly replace the empty ink cartridges.
On the printer control panel, press the Down Arrow
to select Ink Levels, and then press OK.
The Ink Levels screen displays with gauges for all four ink colors.
Hope this helps! Keep me posted.
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KUMAR0307
I am an HP Employee