I have an old HP 2600 all in one inkjet.
While it worked fine, if I can avoid it, I'll never buy another HP inkjet printer.
If one of the cartridges (black / color) is perceived to be out of ink it won't print, scan or fax.
Ink runs at $60 a cartridge and once a cartridge is empty the printer stores* it's ID so if you have it refilled the printer won't recognize it as usable. *I've read it stores the last 3 working ID's for each cartridge.
I don't know if the newer models behave this way but at this point I don't care.
If you've got kids or have to print stuff for work it's easy to burn through cartridges and end up spend $800+ a year in ink supplies. I'm debating on either going laser or with an Epson Ink Tank...