Paper discharge device
AssigneeBrother Kogyo Kabushiki Kaisha
InventorTakayuki Hayashi
Life of this patent
Estimating the term…
Abstract
A central paper discharge roller is disposed on a shaft so as to come in contact with the center of the paper to be discharged. An outer paper discharge roller is disposed on either side of the central paper discharge roller at a predetermined interval. The diameter of the central paper discharge roller is greater than that of the outer paper discharge rollers. A plurality of ribs which press the paper against the paper discharge rollers are disposed on a rib panel. With this structure, the paper discharge device can discharge the paper without generating crinkles in the paper.
Claims22
A paper discharge device for a print device, the print device ejecting a sheet of paper along a curved path leading to the paper discharge device, the curved path curving the sheet about a transverse dimension of the sheet, a center of curvature of the transverse curve located on a first side of the sheet, the paper discharge device comprising:
- a rotational shaft;
- at least three paper discharge rollers positioned axially along the rotational shaft, a diameter of at least one inner paper discharge roller being greater than a diameter of at least two outer paper discharge rollers;
- and
- a plurality of ribs attached to a rib panel pressing the sheet against the paper discharge rollers, the plurality of ribs and the paper discharge rollers seizing the sheet, wherein the sheet, as it is discharged from the print device, is curved by the paper discharge device about a longitudinal dimension of the sheet, a center of curvature of the longitudinal curve located on the first side of the sheet.
A paper discharge device for a print device, the print device ejecting a sheet of paper along a curved path leading to the paper discharge device, the curved path curving the sheet about a transverse dimension of the sheet, a center of curvature of the transverse curve located on a first side of the sheet, the paper discharge device comprising:
- a rotational shaft;
- at least three paper discharge rollers positioned axially along the rotational shaft and spaced apart at a predetermined interval;
- and
- a plurality of ribs capable of pressing the sheet against the discharge rollers as it is discharged,
- wherein a diameter of at least one inner discharge roller is greater than a diameter of each at least two outer discharge rollers, such that the sheet is curved by the paper discharge device about a longitudinal dimension of the sheet, a center of curvature of the longitudinal curve located on the first side of the sheet.
A paper discharge device for a print device, the print device ejecting a sheet of paper along a curved path leading to the paper discharge device, the curved path curving the sheet about a transverse dimension of the sheet, a center of curvature of the transverse curve located on a first side of the sheet, the paper discharge device comprising:
- a rotational shaft;
- at least two paper discharge rollers positioned axially along the rotational shaft, each paper discharge roller having a trapezoidal cross section with an inward diameter of the discharge roller being greater than an outward diameter of the discharge roller;
- and
- a plurality of ribs attached to a rib panel pressing the sheet against the paper discharge rollers, the plurality of ribs and the paper discharge rollers seizing the sheet, wherein the sheet, as it is discharged from the print device, is curved by the paper discharge device about a longitudinal dimension of the sheet, a center of curvature of the longitudinal curve located on the first side of the sheet.
Dependencies are inferred from the claim text.