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Feeding device and imaging equipment

一种给送、接触位置的技术，应用在物件供给、运输和包装、薄料处理等方向，能够解决图像缺陷等问题

Active Publication Date: 2017-04-26
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, these can cause image defects

Method used

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  • Feeding device and imaging equipment
  • Feeding device and imaging equipment
  • Feeding device and imaging equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0031] will refer to Figures 1 to 15A and 15B describe the image forming apparatus according to the first embodiment. In the description below, reference will first be made to figure 1 Describe the overall configuration of the imaging device. Next, refer to Figure 2A and 2B to 13A and 13B describe the structure of the sheet feeding device.

[0032] First, refer to figure 1 Describe the overall configuration of the imaging device. The image forming apparatus A includes four juxtaposed process cartridges 7 (7a to 7d) inclined with respect to the horizontal direction. The process cartridges 7 (7a to 7d) include their respective electrophotographic photosensitive drums 1 (1a to 1d), each serving as an image bearing member.

[0033] The electrophotographic photosensitive drum (hereinafter referred to as "photosensitive drum") 1 is driven along the figure 1 Rotate in the clockwise direction (direction of arrow Q). Around each photosensitive drum 1 are arranged the foll...

no. 2 example

[0089] Next, a second embodiment will be described. In the following description of the second embodiment, descriptions of structures and operations common to the first embodiment are appropriately omitted. The feeding device according to the second embodiment differs from the first embodiment in the structure of the moving unit that moves the pickup roller 8 between the contact position (contact operation) and the retracted position (separation operation).

[0090] Figures 16A to 16C , 17A to 17C and 18A to 18C are perspective views showing the structure of the moving unit in the feeding device of the second embodiment. Figure 16A , 17A and 18A are perspective views of relevant components viewed from the rear side of the product, and Figure 16B , 17B and 18B are perspective views of relevant components viewed from the front side of the product. Figure 16C , 17C and 18C are enlarged views of the gear meshing portion and the cam portion.

[0091] A gear holder 64 is hel...

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PUM

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Abstract

The present invention relates to a feeding device and an image forming apparatus. In the feeding device, the pickup roller is moved to the retracted position by reversely rotating the feed motor by a first predetermined amount, and moved to the contact position by moving the feed motor forward by a second predetermined amount.

Description

technical field [0001] The present invention relates to a feeding device and an image forming apparatus. Background technique [0002] Heretofore existing image forming apparatuses such as copiers, printers, and facsimiles include a sheet feeding device that feeds sheets to an image forming section. The sheet feeding device includes a sheet housing unit that houses a sheet to be fed. An example of such a sheet storage unit is a feed cassette that is detachably mounted in an image forming apparatus. [0003] Figure 19 A feeding cassette disclosed in Japanese Patent Laid-Open No. 2013-10611 is shown. In the feeding cassette 900 , the middle plate 901 is pivotably provided in the up and down direction with respect to the casing 903 on the pivot shaft 903 a. The lift plate 902 pushes up the downstream side of the intermediate plate 901 in the sheet feeding direction. Therefore, the sheet on the intermediate plate 901 is brought into contact with the pickup roller (feed roll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H3/06
CPCB65H1/14B65H1/266B65H7/04B65H2403/421B65H2403/512B65H2403/53B65H2403/541B65H2403/721B65H2403/732B65H2405/114B65H2511/515B65H2513/40B65H2601/324B65H3/0669B65H5/062B65H3/0684B65H2402/54B65H2220/01B65H2220/02
Inventor 善财彰一
Owner CANON KK