Patent ID: 8185036

Claim:
A medium transport apparatus comprising: a transport unit that transports a recording medium continuing in a direction, in the direction where the recording medium continues; a detection unit that detects a mark formed on the recording medium transported by the transport unit, by using a detection effective range in a direction crossing a transport direction of the recording medium; a positional relationship identification unit that identifies a relative positional relationship between the detection unit and the mark in the direction crossing the transport direction, from a detection result obtained by the detection unit; and a move unit that moves the detection unit in the direction crossing the transport direction, on the basis of the relative positional relationship identified by the positional relationship identification unit, wherein the recording medium is a continuous paper having portions defining feed holes regularly formed in the direction, the medium transport apparatus further comprises: an identification unit that identifies, from the detection result from the detection unit, a position of the portions defining the feed holes in width directions of the continuous paper from an end part of the continuous paper; and a determination unit that determines a destination position to which the detection unit is to be moved, on the basis of an identification result obtained by the identification unit, and the move unit moves the detection unit to the destination position determined by the determination unit before moving the detection unit.