Dell 1250c not installing black toner cartridge - HELP!
I keep getting an exclamation mark and a light saying that the black cartridge is not installed at all, but it is a new cartridge and it clicked into place properly, but still doesn't work. I even bought another cartridge as I thought the first one was faulty, and that doesn't work either. I put the original empty cartridge in and it isn't even reading that. Please help!