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Sheet feeding apparatus, image reading apparatus, and image forming apparatus

A technology for feeding and sheet materials, which is applied in the field of sheet material feeding equipment, and can solve problems such as increased driving force, large collision noise, and violent collisions

Active Publication Date: 2016-12-07
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the driving force causing the rotation of the cam becomes large, and the pickup roller collides violently with the sheet, resulting in a loud collision noise

Method used

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  • Sheet feeding apparatus, image reading apparatus, and image forming apparatus
  • Sheet feeding apparatus, image reading apparatus, and image forming apparatus
  • Sheet feeding apparatus, image reading apparatus, and image forming apparatus

Examples

Experimental program
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Effect test

no. 1 example

[0029]

[0030] Such as figure 1 As shown, the image forming apparatus A includes a sheet stacking portion on which a sheet S as a recording medium is stacked; an image forming portion that transfers a toner image onto the sheet S; a sheet feeding section that feeds the sheet S to the image forming section; and a fixing section that fixes the toner image to the sheet S.

[0031] The sheet stacking section includes a sheet storage section 2 that stores sheets S in the image forming apparatus A. As shown in FIG. In addition, a tray feeding section 1 (manual tray) is provided as a sheet feeding device that is provided outside the image forming apparatus and that the user feeds the sheet S when forming an image. Stacked on the tray 100 of the tray feeding section 1 to feed the sheets S.

[0032] The image forming section includes: a process cartridge 4 which is detachably attachable with respect to the image forming apparatus A; an intermediate transfer unit; and a laser scann...

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PUM

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Abstract

A sheet feeding apparatus, an image reading apparatus, and an image forming apparatus are provided; the sheet feeding apparatus comprises the following units: a feeding rotary member; a cam member; a drive force transfer portion configured to transmit the drive force from a drive source to the cam member and including a one-way clutch, wherein the one-way clutch transfers the drive force causing the cam member to rotate in the first direction; a link member configured to press a support member so as to rotate based on the rotation of the cam member; a braking unit configured to reduce a rotational torque generated by the cam member that presses the link member in such a manner that the cam member rotates in the first direction, wherein said motions are carried under the condition in which the cam member is rotated in the first direction by the driving force transferred from the drive source by the drive force transfer portion so that the feeding rotary member is moved from the separating position to the feeding position.

Description

technical field [0001] The present invention relates to: a sheet feeding device that feeds a sheet in an image forming device to a sheet conveying path when an image is formed; and an image reading device that Equipped with a sheet feeding device; and an image forming device. [0002] Here, examples of the image forming apparatus include an electrophotographic copier that forms an image on a recording medium using an electrophotographic image forming system; an electrophotographic printer (for example, a laser beam printer and an LED printer); and a facsimile apparatus. Background technique [0003] As a sheet feeding apparatus incorporated in an image forming apparatus, in addition to a configuration in which sheets are fed from a sheet storage portion provided in the apparatus, there is also a configuration of a so-called manual tray system in which , the tray is set on one side surface of the device and the sheet on the tray is fed. [0004] The sheet feeding device of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H3/06B65H5/06B65H1/14G03G15/00
CPCB65H1/14B65H3/06B65H5/06G03G15/00B65H2801/03G03G15/6511G03G21/1647G03G2215/00679G03G2221/1657B65H1/04B65H3/0692B65H2403/512B65H2403/53B65H2405/324B65H2407/21B65H3/0669H04N1/00602H04N1/00588G03G15/6529B65H2403/72B65H3/0684B65H2403/514B65H2403/725B65H2515/32H04N2201/0081H04N2201/0082
Inventor 村田航
Owner CANON KK
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