All-in-one machine: copier, printer, overprinter machine, stapler, fax machine, computer, etc.
Second, related items: paper, scissors, digital simulation, etc.
Of course, second-hand machines are cheaper, but the quality and service life of second-hand machines are not as long as new ones, and they are particularly prone to problems and are not easy to use.
I suggest you go to the nearest copier complete equipment sales store, first indicate that you want to buy it, and then consult the manager about relevant technical parameters and indicators. After knowing the relevant knowledge of photocopiers, you can decide whether to buy them, what shape, what size and what specifications to buy, so that you can fight a prepared battle.