Inkjet recording apparatus

  • US 9,056,505 B2
  • Filed: 01/06/2015
  • Issued: 06/16/2015
  • Est. Priority Date: 11/28/2011
  • Status: Active Grant
First Claim
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1. An inkjet recording apparatus, comprising:

  • a recording head comprising nozzles configured to eject ink onto a first sheet and a second sheet, the second sheet having a shorter length in a first direction than the first sheet, the first direction being perpendicular to a conveying direction and a vertical direction;

    a plurality of discharge conveyors disposed downstream of the nozzles in the conveying direction and spaced from each other in the first direction, the plurality of discharge conveyors being configured to nip a sheet having received the ink at nip points and discharge the sheet in the conveying direction through a discharge port;

    a plurality of first pressing portions disposed downstream of the nozzles and upstream of the plurality of discharge conveyors in the conveying direction and spaced from each other in the first direction, the plurality of first pressing portions being configured to contact, at lower ends thereof, an upper surface of the sheet, and the lower ends being positioned lower than the nip points of the plurality of discharge conveyors such that the sheet is formed into a corrugated shape having alternating ridge portions and groove portions arranged in the first direction,wherein the inkjet recording apparatus defines a first zone configured to receive passage of the first sheet but not passage of the second sheet, and a second zone configured to receive passage of the first sheet and the second sheet, andwherein the plurality of first pressing portions comprise first pressing portions positioned in the first zone and first pressing portions positioned in the second zone, and a pressing force per unit area configured to be applied to the sheet by the first pressing portions positioned in the second zone is less than a pressing force per unit area configured to be applied to the sheet by the first pressing portions positioned in the first zone.

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