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Paper sheet conveying device and image forming device

一种纸张输送、纸张的技术，应用在打印装置、图像通信、运输和包装等方向，能够解决摩擦力增大、修正精度恶化等问题

Inactive Publication Date: 2005-02-09
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In addition, in recent years, in order to reduce the size of the device, the paper conveyance path on the upstream side of the conveyance roller is often curved. , if the rear end of the paper is in the paper conveying path, the friction between the paper and the guide member constituting the paper conveying path will increase, and the accuracy of skew correction will further deteriorate

Method used

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  • Paper sheet conveying device and image forming device
  • Paper sheet conveying device and image forming device
  • Paper sheet conveying device and image forming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Hereinafter, embodiments of the present invention will be described in detail using the drawings.

[0043] figure 1 It is a sectional view of a printer as an example of an image forming apparatus having a paper conveying device according to the first embodiment of the present invention.

[0044] In this figure, reference numeral 1000 is a printer, and the printer 1000 has a printer body 1001 and a scanner 2000 disposed on the printer body 1001 .

[0045] Here, the scanner 2000 for reading an original has a scanning optical system light source 201, a platen glass 202, an open and close original platen 203, a lens 204, a light receiving element (photoelectric conversion) 205, an image processing unit 206, and a A memory 208 and the like for image processing signals processed by the processing unit 206 .

[0046] When reading an original, the scanning optical system light source 201 irradiates light onto an original (not shown) placed on the platen glass 202 for reading....

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PUM

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Abstract

Provided is a sheet conveying apparatus capable of improving a correction accuracy for conveying a sheet. Accordingly, a 'sheet conveying apparatus for conveying a sheet using a sheet conveying unit arranged along a sheet conveying path' according to the present invention includes a skew detecting unit for detecting skew of the sheet conveyed along the sheet conveying path with respect to a sheet conveying direction, a skew correcting unit that moves in a direction for correcting the skew of the skewed sheet with the sheet nipped therein on the basis of a detection signal from the skew detecting unit, and a guide unit for regulating side edges of the sheet and guiding the sheet to the skew correcting unit, in which, when the skew correcting unit moves in the direction for correcting the skew of the sheet, the guide unit is moved in the direction for correcting the skew of the sheet.

Description

technical field [0001] The present invention relates to a paper conveying device having a configuration for correcting the inclination of sheets such as recording paper and manuscripts conveyed to an image forming unit. Background technique [0002] Conventionally, image forming apparatuses such as copiers, printers, facsimile machines, and scanners and image reading apparatuses have a paper conveying device that conveys paper such as recording paper and originals to the image forming unit and the image reading unit. The paper conveying device has a correction unit that corrects the skew of the paper and corrects the misalignment of the paper to correct the attitude and position of the paper before being conveyed to the image forming unit and the image reading unit. [0003] Here, as a correction method of such a correction unit, there is a method using a pair of skew correction rollers. For example, in the case of an image forming apparatus, the so-called camber correction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/00B65H5/06B65H5/36B65H7/08B65H9/00B65H9/16
CPCB65H9/002B65H2511/242B65H2511/212B65H2404/14212B65H9/16B65H2511/24B65H2220/02B65H2220/11B65H2220/01
Inventor 菅毅井上博慈
Owner CANON KK
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