Transport device and image forming apparatus

Patent metadata

Field	Value
Publication number	US-11480898-B2
Application number	US-202117324078-A
Country	US
Kind code	B2
Filing date	May 18, 2021
Priority date	Jul 30, 2020
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

A transport device includes a transport unit that transports a sheet-like transport material without holding a one-end-side portion of the transport material in a transport direction; and a blowing unit that blows air against a lower surface of the transport material that is transported by the transport unit via multiple blowing holes that open with respect to the lower surface, an arrangement interval of the multiple blowing holes in the transport direction being inconstant in the transport direction.

First claim

What is claimed is:

1. A transport device comprising:
a transport unit that transports a sheet-like transport material without holding a one-end-side portion of the transport material in a transport direction; and
a blowing unit that blows air against a lower surface of the transport material that is transported by the transport unit via a plurality of blowing holes that open with respect to the lower surface, an arrangement interval of the plurality of blowing holes in the transport direction being inconstant in the transport direction,
wherein the plurality of blowing holes include first blowing holes that are disposed at a predetermined first period in the transport direction, and second blowing holes that are disposed at a second period differing from the first period in the transport direction in an area in which the first blowing holes are disposed, and at least some of the second blowing holes are disposed between the first blowing holes.

2. The transport device according to claim 1 , wherein the transport unit transports the transport material with a downstream-side portion of the transport material in the transport direction being held and without an upstream-side portion of the transport material in the transport direction being held, and
wherein the blowing unit has an opposing surface that opposes the lower surface of the transport material, the opposing surface having the plurality of blowing holes, and
the blowing unit blows air against the lower surface of the transport material and raises the upstream-side portion of the transport material in the transport direction from the opposing surface.

3. An image forming apparatus comprising:
an image forming unit that forms an image on a recording medium serving as a transport material;
a heating unit that in a non-contact manner heats an upper surface of the transport material on which the image has been formed by the image forming unit; and
the transport device according to claim 1 in which the blowing unit blows air via the plurality of blowing holes provided in an opposing surface opposing the lower surface of the transport material, and raises the transport material from the opposing surface, the transport device reversing top and bottom of the transport material that has passed a location between the heating unit and the opposing surface to transport again the transport material to the location between the heating unit and the opposing surface.

Assignees

• Fujifilm Business Innovation Corp

Inventors

• Kodera Tetsuro
• Yamada Kosuke
• Nakayama Nobuyuki
• Yamashita Takayuki

Classifications

• G03G15/2017 Primary

  Structural details of the fixing unit in general, e.g. cooling means, heat shielding means (G03G15/2053 takes precedence) · CPC title

• B65H2701/1131

  of sheets · CPC title

• G03G15/2028 Primary

  with means for handling the copy material in the fixing nip, e.g. introduction guides, stripping means · CPC title

• B65H2801/27

  Devices located downstream of office-type machines · CPC title

• G03G15/2007 Primary

  using radiant heat, e.g. infrared lamps, microwave heaters · CPC title