A medium transporting apparatus that transports a medium along a transportation path, comprising: a feeding roller that rotates to transport the medium; at least one electrode installed downstream of the feeding roller on the transportation path and having conductivity; at least one electric charge detecting circuit that outputs a signal (SGa) having a magnitude corresponding to an amount of an electric charge, which moves from the medium to the electrode after the medium being transported along the transportation path comes into contact with the electrode; and a controller that determines that the medium is in contact with the electrode when the medium is transported along the transportation path from upstream to downstream in a transportation direction and a magnitude of the signal output from the electric charge detecting circuit is equal to or larger than a detection determination value (SVTh), characterised in that the at least one electrode includes a plurality of electrodes installed at different positions in a width direction of the medium transported along the transportation path, the at least one electric charge detecting circuit includes a plurality of electric charge detecting circuits corresponding to the plurality of electrodes, and the controller calculates an estimated value (θ) of an inclination of the medium so that the estimated value is larger as a difference between a time when a magnitude of a signal (SGa) output from an electric charge detecting circuit that is among the plurality of electric charge detecting circuits and corresponds to a first electrode among the plurality of electrodes becomes equal to or larger than the detection determination value (SVTh) and a time when a magnitude of a signal (SGa) output from an electric charge detecting circuit that is among the plurality of electric charge detecting circuits and corresponds to a second electrode among the plurality of electrodes becomes equal to or larger than the detection determination value (SVTh) is larger. a feeding roller that rotates to transport the medium; at least one electrode installed downstream of the feeding roller on the transportation path and having conductivity; at least one electric charge detecting circuit that outputs a signal (SGa) having a magnitude corresponding to an amount of an electric charge, which moves from the medium to the electrode after the medium being transported along the transportation path comes into contact with the electrode; and a controller that determines that the medium is in contact with the electrode when the medium is transported along the transportation path from upstream to downstream in a transportation direction and a magnitude of the signal output from the electric charge detecting circuit is equal to or larger than a detection determination value (SVTh), characterised in that the at least one electrode includes a plurality of electrodes installed at different positions in a width direction of the medium transported along the transportation path, the at least one electric charge detecting circuit includes a plurality of electric charge detecting circuits corresponding to the plurality of electrodes, and the controller calculates an estimated value (θ) of an inclination of the medium so that the estimated value is larger as a difference between a time when a magnitude of a signal (SGa) output from an electric charge detecting circuit that is among the plurality of electric charge detecting circuits and corresponds to a first electrode among the plurality of electrodes becomes equal to or larger than the detection determination value (SVTh) and a time when a magnitude of a signal (SGa) output from an electric charge detecting circuit that is among the plurality of electric charge detecting circuits and corresponds to a second electrode among the plurality of electrodes becomes equal to or larger than the detection determination value (SVTh) is larger.