Why my printer keep saying cartridge problem

[Pepe6]

Why my printer keep saying cartridge problem I keep taking oof and put it I back and nothing. Ya hat should I do

[TEJ1602]

@Pepe6, Welcome to HP Support Community!

To assist you better, We would need some information related to your Instant Ink Subscription. This information cannot be shared on a public post.

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[JohnHinch]

HP printer4520 all-in-one printer. message keeps saying problem with cartridge." Remove and reinstall problem cartridge. If this does not work install new cartridge" This keeps happening every time I print one A4 sheet. I have to remove and re-install and after trying this 3/4 times it will print one sheet. When it allows me to print the ink level is showing cartridge is a third full, then goes back to empty.

[TEJ1602]

@JohnHinch, Welcome to HP Support Community!

Is your printer enrolled in the HP Instant Ink Program?

Meanwhile, try the steps from the document HP Printer Does not Print and Error Indicates Faulty Ink Cartridge

Keep me posted for further assistance.

[newelld1]

i went to put a new black ink cartridge in the printer and I slightly bumped it to the left and ever since it says that I need to change the cartridge. 

[TEJ1602]

@newelld1, Welcome to HP Support Community!

Is your printer enrolled in the HP Instant Ink Program?

Is there any physical damage on the printer or the ink cartridge?

Meanwhile, try the steps from the document HP Printer Does not Print and Error Indicates Faulty Ink Cartridge

Keep me posted for further assistance.