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Paper supply device as well as image forming device and automatic original paper conveying device

A paper feeding device and image technology, applied in the field of printing, to achieve the effect of solving paper refeeding

Active Publication Date: 2021-04-27
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing paper feeding device, a separating part is installed to separate the conveying paper and the refeeding paper. When the paper separation is required, it can only deal with the refeeding of 2 sheets of paper.

Method used

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  • Paper supply device as well as image forming device and automatic original paper conveying device
  • Paper supply device as well as image forming device and automatic original paper conveying device
  • Paper supply device as well as image forming device and automatic original paper conveying device

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Embodiment Construction

[0028] The making and using of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention. The expression of the structural position of each component such as up, down, top, bottom, etc. in the description is not absolute, but relative. These directional expressions are appropriate when the various components are arranged as shown in the drawings, but when the positions of the various components in the drawings are changed, these directional expressions are also changed accordingly.

[0029] In the existing paper feeding device, due to the static electricity between the papers, there may be multiple papers entering the conveying path, and paper double-feeding occurs at this time. Japanese Patent Application Laid-Open No. 2005-246207 discloses a means for separating transport paper and refeed paper, bu...

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PUM

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Abstract

The invention provides a paper supply device as well as an image forming device comprising the paper supply device and an automatic original paper conveying device. The paper supply device comprises a first carrying path, a second carrying path, re-carrying path, a plurality of carrying roller pairs positioned in each path, a separating part, a detecting part and a control part, wherein the control part is configured to close the separating part after the first paper passes through the first carrying path and control carrying roller pairs in the first carrying path and the re-carrying path to rotate reversely for carrying back paper in the re-carrying path to the first carrying path while the detecting part in the re-carrying path detects that the paper passes through.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to a paper feeding device, an image forming device and an automatic document conveying device including the paper feeding device. Background technique [0002] In the existing paper feeding device, a separating part is provided to separate the conveyed paper and the double-feed paper, and when paper separation is required, it can only deal with the double-feed of 2 sheets of paper. If 3 or more papers are re-fed, the middle paper will be taken away by the paper above or below, and re-feed may still occur. Contents of the invention [0003] In order to solve the problems existing in the prior art, the present invention provides a paper feeding device, which can effectively deal with the double feeding of more than two sheets, especially more than three sheets. [0004] The present invention also provides an image forming device including the paper feeding device and an automatic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H3/46B65H7/12B65H3/18B65H3/14
CPCB65H3/46B65H7/12B65H3/18B65H3/14B65H2801/03
Inventor 乔翔宇卢杰
Owner KONICA MINOLTA INC