Patent ID: 8911053

Claim:
An inkjet recording apparatus comprising: a conveyor roller pair comprising a plurality of rollers, each of the plurality of rollers comprising a rotational shaft, the conveyor roller pair configured to convey a sheet, which is being guided in a first conveyance path, along a conveyance direction while nipping the sheet therebetween; a recording unit disposed downstream of the conveyor roller pair in the conveyance direction and configured to eject ink droplets from nozzles to record an image onto the sheet; a reversible roller pair disposed downstream of the conveyor roller pair in the conveyance direction and configured to convey the sheet downstream in the conveyance direction or into a second conveyance path while nipping the sheet therebetween, wherein the second conveyance path joins the first conveyance path at a first junction located downstream of the conveyor roller pair and upstream of the reversible roller pair in the conveyance direction and at a second junction located upstream of the conveyor roller pair in the conveyance direction; a corrugate mechanism disposed upstream of the reversible roller pair in the conveyance direction and configured to form the sheet into a corrugated shape in a direction perpendicular to the conveyance direction and parallel to a recording surface of the sheet; and a control device configured to: record an image on a first surface of the sheet by the recording unit, wherein a sheet length along the conveyance direction of the sheet is longer than a length of a conveyance path that starts at a nip point of the reversible roller pair, extends through the second conveyance path from the nip point to the conveyor roller pair and further through the first conveyance path from the conveyor roller pair to the nip point, and returns to the nip point; convey, via the reversible roller pair, toward the second conveyance path, the sheet on which the image is recorded on the first surface; record an image on a second surface of the sheet via the recording unit, wherein the second surface is opposite to the first surface; and convey the sheet by the conveyor roller pair such that a leading edge of the sheet passes the reversible roller pair and reaches a position downstream of the reversible roller pair in the conveyance direction.