Printer Setup, Software & Drivers

Says ' ink cartridge problem. The following ink cartridge must be replaced'. then it shows an oval shape filled in black. It was suggested to me that I needed to go onto hp support and install any updates as it might clear the message. By the way, I replaced both the tricolour and black cartridges with legit hp products first, that hasn't cleared it. So I went onto hp support, utterly baffling, didn't recognise my question no matter how I phrased it, punted in the end for 'finding software and drivers'. Not sure about that? No idea. I put in my printer type, It twirls and comes up with nothing. I left it twirling for entire night, nothing.  So hp doesn't have a category of help for users like me (great at using front end as long as it's working, lost if it isn't) and I don't even understand the headings of the help. I don't know what an operating system is either? It kept asking me that. It's currently linked wireless to my iPad. Once it is working I'd also like to link it to my laptop which runs off windows 10. If there are humans out there that can dumb this down for me, I'd be very pleased to hear from you.