Importance

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Abstract

A printing medium which has been fed from a hopper is transported along a transport path having a U-shape. The transport path is formed by first and second linear paths and a curved path. The printing medium is transported along each path in the order of the first linear path, the curved path and the second linear path. When the printing medium passes through the first linear path, the print head performs the printing onto a front surface of the printing medium. Thereafter, the printing medium reaches the second linear path through the curved path. When the printing medium passes through the second linear path, the print head performs the printing on a back surface of the printing medium. At the timing for transporting the printing medium along the curved path, the print head is moved from the vicinity of the first linear path to the second linear path. Thus, the print head is moved and set to be ready for printing in the two positions. The printing medium whose back surface has been subjected to the printing operation is stacked on a stacker.

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First Claim