A printer includes a receiving unit configured to receive a print job; a printing unit which executes a printing process to print an image on a recording medium based on the print job received by the receiving unit; a suspending unit which suspends the printing process based on suspension information added to the print job; an indicating unit which indicates that the printing is in process during suspension of the printing process; and a re-starting unit which re-starts the printing process suspended by the suspending unit.