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A sheet supply device and an image forming device

A technology of a supply device and a feeding device, which is applied in the direction of electric recording technology using charge patterns, equipment for electric recording technology using charge patterns, and electrography, and can solve problems such as inability to supply sheets

Active Publication Date: 2016-11-23
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] That is, in the sheet feeding device described in Patent Document 1, the sheet cannot be fed while the pressing plate moves up and down.
In addition, in the sheet feeding device described in Patent Document 1, an operation sound of the pressing plate and the mechanism for driving the pressing plate is generated every time a sheet is fed.

Method used

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  • A sheet supply device and an image forming device
  • A sheet supply device and an image forming device
  • A sheet supply device and an image forming device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0049] 1. Overview of image forming apparatus

[0050] exist figure 1 An image forming mechanism 5 is accommodated in a housing 3 of the illustrated image forming apparatus 1 (see figure 2 ). A paper feed cover 3A is swingably assembled on the front side of the housing 3 . A discharge cover 3B is assembled to the upper surface of the housing 3 so as to be able to swing.

[0051] Such as figure 1 As shown, when the image forming operation is not performed, the user rotates the paper feed cover 3A and the paper discharge cover 3B forward as indicated by the two-dot chain line to open the paper feed cover 3A and the paper discharge cover 3B.

[0052] and, if figure 2 As shown by the solid line in , in the image forming apparatus 1 with the sheet feeding cover 3A and the sheet output cover 3B opened, the user inserts a sheet from the opening opened by opening the sheet feeding cover 3A, and places the sheet on the press. plate 13.

[0053] In addition, when the user place...

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PUM

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Abstract

The invention provides a sheet supply device which can reduce up-and-down movement of pressing paper along with paper supply movement. The sheet supply device comprises a paper supply roller, an input gear, a first output gear, a clutch mechanism, a pressing plate, a cam controlling the ascending displacement and the descending displacement of the pressing plate, a second output gear which meshes with the input gear and rotates to make the cam rotate and consists of a sector gear comprising a first tooth missing part and a second tooth missing part without teeth, a spring applying rotating force to the second output gear, and a maintaining mechanism maintaining a first stop state and a second stop state. In the first stop state, the input gear faces the first tooth missing part, and in the second stop state, the input gear faces the second tooth missing part; when the input gear stops, the first stop state is formed, and when the paper supply roller rotates, the second stop state is formed.

Description

technical field [0001] The present invention relates to a sheet supply device for supplying sheets and an image forming apparatus using the sheet supply device. Background technique [0002] For example, in the sheet feeding device described in Patent Document 1, a sheet feeding roller that feeds a sheet and a pressing plate that presses the sheet to the feeding roller are provided, and the pressing plate moves up and down every time a sheet is fed. reciprocating motion. That is, in the above-described sheet feeding device, when three sheets are continuously fed, the pressing plate reciprocates up and down three times. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2013-209192 [0006] The paper feed roller applies feeding force to the sheet by coming into contact with the sheet and rotating. That is, the paper feed roller needs to rotate while the sheet is in contact with the paper feed roller. [0007...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/00
CPCG03G15/6502
Inventor 冈本佳大
Owner BROTHER KOGYO KK
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