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Paper feeder of image reader

A technology for feeding paper and images, which is applied in the directions of image communication, object supply, and winding strips, etc. It can solve the problems of not being able to obtain image data, and achieve the effect of maintaining reading operation and small impact

Active Publication Date: 2007-07-11
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the image data of the correct size cannot be obtained

Method used

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  • Paper feeder of image reader
  • Paper feeder of image reader
  • Paper feeder of image reader

Examples

Experimental program
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Embodiment Construction

[0029] An illustrative embodiment of the invention will be described in detail with reference to the accompanying drawings.

[0030] As shown in FIG. 1, this embodiment is applicable to a document reader 2 having an automatic document feeder 6 in a multifunctional device 1 having a fax function, a scanning function, a copying function and a printing function.

[0031] On the top surface of the main body casing 3 of the multifunctional device 1, a large-sized glass plate 4 for placing documents is fixed in a horizontal state. At the front of the top surface of the main body casing 3, an operation panel portion 5 is provided. The operation panel 5 includes a ten-digit keypad for performing a facsimile function, a scan function, and a copy function, buttons for sending various operation instructions, and a liquid crystal display.

[0032] As shown in FIGS. 1 and 2 , the document reading machine 2 with the automatic document feeder 6 is composed of a cover assembly 7 , the automa...

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PUM

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Abstract

A sheet feeder includes a plurality of roller pairs, which are drive roller segments and driven roller segments that press against the drive roller segments, disposed in pairs at a downstream side of a reading point. At least an outer layer of each of the drive roller segments is constructed of a material, such as a rubber, having a high coefficient of friction relative to a document sheet and at least an outer layer of each of the driven roller segments is made from a material having a low coefficient of friction relative to the document sheet. The drive roller segments are disposed on an axis perpendicular to a sheet feed direction, whereas the driven roller segments are disposed on axes inclined to the sheet feed direction symmetrically about a centerline of a width of the document sheet. Further, the axes of the driven roller segments are inclined such that the end of each of the segment's axis furthest from the centerline is on one of an upstream or downstream side of a sheet feed direction and an end closest to the centerline is on one of a downstream or upstream side of the sheet feed direction opposite that of the other end.

Description

technical field [0001] The present invention relates to a paper feeder capable of feeding paper such as documents in an image reading apparatus, and particularly to a structure capable of preventing the Image reading failure caused by the momentary stop of the fed paper in the reading section. Background technique [0002] Usually, in facsimile machines, scanners, and copiers, multiple documents are stacked at one place, and these documents are fed one by one by an automatic document feeder, so that the documents can be read without a linear CCD camera or a linear contact image sensor (CIS). The reading part is able to read the images on the file. In this case, a sheet feeder including a pair of rollers (with one driving roller and one driven roller used as a pair) is provided on the downstream side of the reading section. If the axes of the driving roller and the driven roller are arranged in a direction perpendicular to the paper feeding direction, the nip portion betwee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H23/025B65H29/70B65H5/06B65H29/14B65H29/22H04N1/00
CPCB65H2801/06B65H2404/1431B65H29/14B65H2404/134B65H2404/531B65H2404/133
Inventor 大滨贵志松岛龙一
Owner BROTHER KOGYO KK
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