A printing apparatus, comprising: a print mechanism which is configured to perform printing on a plurality of papers; a paper feed section (91, 92) on which the papers to be printed by the print mechanism are to be placed; a paper discharge section on which the papers that have been printed by the print mechanism are to be placed; a transport route which extends from the paper feed section to the paper discharge section via a printing position at which the print mechanism performs printing; a transport mechanism (71, 72, 73, 74, 75, 77, 78) which is configured to pick up the papers placed on the paper feed section and to successively transport the papers along the transport route; a paper sensor (60, 61, 62, 63, 64, 65, 66) which is provided on the transport route and is configured to detect passing of the papers; and a controller which is configured to control the transport mechanism, and the print mechanism, wherein the controller controls the transport mechanism to perform a transportation of the papers by a plurality of transport modes including a first transport mode and a second transport mode, the first transport mode being a mode in which the transport mechanism transports the papers so that at most first number of the papers are present in the transport route, the second transport mode being a mode in which the transport mechanism transports the papers so that at most second number, which is smaller than the first number, of the papers are present in the transport route; in a case that a paper jam occurs in the transport route during the transportation of the papers by the first transport mode to thereby discontinue the transportation of the papers, the controller is configured to control the transport mechanism to resume the transportation of the papers by switching the transport modes from the first transport mode to the second transport mode characterised in that; in a case that papers are not detected by the paper sensor after a predetermined time has passed since a pickup instruction to the transport mechanism for picking up the papers from the paper feed section was made, the controller determines that the paper jam is due to a pick up error; in a case that the controller determines that the paper jam is due to a pick up error, the controller resumes the transportation of the papers in the first transport mode; and in a case that the controller determines that the paper jam is due to another cause different from the pick up error, the controller resumes the transportation of the papers in the second transport mode. a print mechanism which is configured to perform printing on a plurality of papers; a paper feed section (91, 92) on which the papers to be printed by the print mechanism are to be placed; a paper discharge section on which the papers that have been printed by the print mechanism are to be placed; a transport route which extends from the paper feed section to the paper discharge section via a printing position at which the print mechanism performs printing; a transport mechanism (71, 72, 73, 74, 75, 77, 78) which is configured to pick up the papers placed on the paper feed section and to successively transport the papers along the transport route; a paper sensor (60, 61, 62, 63, 64, 65, 66) which is provided on the transport route and is configured to detect passing of the papers; and a controller which is configured to control the transport mechanism, and the print mechanism, wherein the controller controls the transport mechanism to perform a transportation of the papers by a plurality of transport modes including a first transport mode and a second transport mode, the first transport mode being a mode in which the transport mechanism transports the papers so that at most first number of the papers are present in the transport route, the second transport mode being a mode in which the transport mechanism transports the papers so that at most second number, which is smaller than the first number, of the papers are present in the transport route; in a case that a paper jam occurs in the transport route during the transportation of the papers by the first transport mode to thereby discontinue the transportation of the papers, the controller is configured to control the transport mechanism to resume the transportation of the papers by switching the transport modes from the first transport mode to the second transport mode characterised in that; in a case that papers are not detected by the paper sensor after a predetermined time has passed since a pickup instruction to the transport mechanism for picking up the papers from the paper feed section was made, the controller determines that the paper jam is due to a pick up error; in a case that the controller determines that the paper jam is due to a pick up error, the controller resumes the transportation of the papers in the first transport mode; and in a case that the controller determines that the paper jam is due to another cause different from the pick up error, the controller resumes the transportation of the papers in the second transport mode.