If you remove a cartridge from an inkjet printer for longer, cartridge nozzles will dry out so you'll need to clean them in some way or buy new cartridge. Is there something that can happen to the printer itself when there's no cartridge in it?
I've just installed a new cartridge with black ink in HP PSC 1210 printer after the old one has been removed for a couple of days. I was able to print as few as 5 pages of text and then the black ink stopped appearing on sheets (printer was trying to print as if nothing happened). I don't know if I should blame refilled cartridge provider (for poor quality of the cartridge) or myself (for leaving a cartridge slot empty for several days).