Keylogger for Printer?

I know the tittle may sound difficult to understand, but I will explain it.There is a printer in school , and i want it to save all information(scans,printed stuff, etc..) but i don't really know how to do so. I talked about the keylogger since it can save the words you write, happening the same thing in a printer it should save the files that were there.

I could put a pen drive inside it or other way would be wireless i think, but i dont know if there is a way to do what i just asked in those 2 ways.

Can someone help me?