When I install a new cartridge (78 color) for my HP v40, I get an error saying "remove & check cartridge'. I do that, reinstall it, and same thing. This has happened before, and I was told to use a genuine HP cartridge, and it would 're-set the chip'. Did that back then, and trying to avoid having to purchase another of those outrageously priced HP cartridges. I have a good quality generic, but don't know how to get it to 'registr' as a new, full color cartridge. Anyone got any ideas to help me, please? Thank you.