Patent ID: 8277042

Claim:
An ink jet recording apparatus, comprising: a recording head, having a dot formation element array in which a plurality of dot formation elements are arrayed; a controller operative to perform an operation mode in which a recording is performed without leaving a margin by ejecting ink toward a top end of a recording medium and toward a bottom end of the recording medium; a transporting roller, configured to transport the recording medium in a transporting direction and disposed upstream of the recording head in the transporting direction; a discharging roller, disposed downstream of the recording head in the transporting direction; a first rib, disposed at a side of the transporting roller between the transporting roller and the discharging roller in the transporting direction, and configured to support the recording medium from below; a second rib, disposed at a side of the discharging roller between the transporting roller and the discharging roller in the transporting direction, and configured to support the recording medium from below; a third rib, disposed between the first rib and the second rib between the transporting roller and the discharging roller in the transporting direction; a first discarding region, configured to receive ink discarded when recording at the top end of the recording medium without leaving a margin, at a position downstream of a supporting portion of the third rib, which supports the recording medium, in the transporting direction; and a second discarding region, configured to receive ink discarded when recording at the bottom end of the recording medium without leaving a margin, at a position upstream of a supporting portion of the third rib, which supports the recording medium, in the transporting direction.