Patent ID: 8500229

Claim:
An ink-jet printer which performs printing on a sheet-shaped printing medium, comprising: an ink; an ink tank which stores the ink; a transport mechanism which transports the printing medium in a predetermined transport direction; an ink-jet head which faces one surface of the printing medium transported by the transport mechanism and in which a nozzle for jetting ink droplets of the ink supplied from the ink tank toward the printing medium is formed; and a controller which controls the ink-jet head to perform an ordinary jetting operation and a marking jetting operation, the ordinary jetting operation being an operation in which the ink droplets are jetted toward an area of the printing medium, different from an edge portion of the printing medium, and the marking jetting operation being an operation in which the ink droplets are jetted toward a part of the edge portion of the printing medium in an amount greater than that used in the ordinary jetting operation to form a marking at the edge portion.