A printing apparatus is provided, which includes an instruction receiving unit which receives an execution instruction of a print job, a sheet receiving unit which receives printed sheets; a sorting unit which discharges a separation sheet for separating the printed sheets, and a control device which determine whether the print job is a first job to be executed while a user exists in the vicinity or a second job to be executed while the user dose not exist in the vicinity, and which executes the print job in a first mode where the sorting unit does not discharge the separation sheet, when the print job is the first job, and executes the print job in a second mode where the sorting unit discharges the separation sheet, when the print job is the second job.