All units are tested and working, cleaned to some degree. The old ribbon or cartridge is included (if it had one, you'll likely need to buy a new ribbon and/or cartridge for any of these. No paper is included.*EL-1901AII is battery operated only**EL-1801PIII has some permanent marker which I could not remove. Still works.***Compet CS-1675 is missing one of the plastic sliders, and missing the rails which hold the paper.