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Sheet supply device and imaging apparatus

A kind of equipment and paper supply technology, which is applied in the direction of transportation and packaging, separation of objects, separation of piles, etc., can solve the problems of paper powder or paper feeding sound that aggravates the burden of paper feeding

Active Publication Date: 2008-04-23
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Here, when the pickup roller is always in contact with the paper, there is a problem that paper dust or paper feeding sound is generated or the friction between the pickup roller and paper increases the load on paper feeding

Method used

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  • Sheet supply device and imaging apparatus
  • Sheet supply device and imaging apparatus
  • Sheet supply device and imaging apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 20 .

[0035] 1. Overall structure of the present embodiment

[0036] FIG. 1 is a side cross-sectional view showing essential components of a laser printer as an image forming apparatus. The laser printer 1 is equipped with a main body casing 2, a paper feeding section 4 (paper feeding device), and an image forming section 5 (imaging unit), wherein the paper feeding section 4 is housed in the main body casing 2 and supplies paper 3 page by page, and the image forming section 5 An image is formed on the incoming paper 3.

[0037] (1) Main shell

[0038] On one side wall of the main body shell 2, an installation / removal port 6 is formed, and a front cover 7 for opening and closing the installation / removal port 6 is provided, wherein the installation and removal process is performed through the installation / removal port 6 A process cartridge 20, the process toner cartridge 2...

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PUM

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Abstract

When a paper feed cassette is again mounted, a pressing portion of a pressing member is brought into contact from the front side on a second surface of an extending portion of a contacting member, and the contacting member is pressed by the pressing member to be displaced from the retract position to the contact position. At this time, the pressing portion of the contacting member presses a pressed portion of a disc member to rotate a third cam itself in the counterclockwise direction in the drawing. Accordingly, the lift lever locked by the third cam is released, and an end portion of an arm member is allowed to move upward.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Japanese Patent Application No. 2004-347642 filed on November 30, 2004, the entire point of which is incorporated herein by reference. technical field [0003] The present invention relates to a paper feeding apparatus and an image forming apparatus, and more particularly, the present invention relates to drive control of a pile section on which sheets are piled. Background technique [0004] For example, a paper feeding apparatus is disclosed in JP-A-2001-80774, which includes: a pick-up roller (conveying roller) movable up and down so as to be in contact with paper stacked on a stacking section, And a separation mechanism having a feed roller (separation roller) and a separation pad (separation unit), which is disposed on the further downstream side of the pickup roller in the conveyance direction. The pickup roller makes contact with the paper on the stack section as it rotates...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H3/52B65H3/06B65H1/18
CPCB65H3/0684B65H2403/51B65H1/12B65H2701/1912
Inventor 服部慎
Owner BROTHER KOGYO KK