Abstract:
The disclosure discloses a method for identifying a paper discharging device, a paper discharging device, a printer and a printing system. Wherein the method for identifying the paper discharging device includes: acquiring an identification signal by a printer, wherein the identification signal is a signal corresponding to the paper discharging device, wherein different paper discharging device corresponds to different identification signal; and judging a type of the paper discharging device according to the identification signal by the printer, wherein the corresponding relation between the identification signal and the type of the paper discharging device is stored in the printer. According to the disclosure, the problem that the printer may not automatically identify the paper discharging device type in the relevant technology is solved.