After reading up on the Lexmark error 1203?
I've done everything that has been recommended. My ink cartridges are brand new. The printer was working perfectly fine 3 days ago with these brand new cartridges & all of a sudden, out of no where, the error shows up. The black ink isn't a lexmark
Go out printer cartridge and try to use the Kleenex with a few drops of water to dampen and clean off those contact, without leaving traces of the cleaner cartridge contacts. You can do this with isopropyl alcohol or a high concentration of alcohol.