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Document conveying device and control method

A technology of a conveying device and a control method, which is applied in the field of original conveying device and control, can solve the problems of multiple feeding of originals and the inability to convey originals by a pickup roller, and achieves the effect of high-speed conveying processing.

Active Publication Date: 2019-07-30
PFU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the pressing force of the pickup arm to press the original is too small, the pickup roller cannot convey the original. Conversely, if the pressing force is too high, the friction between the loaded originals will be too large, and double feeding of the originals may occur.

Method used

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  • Document conveying device and control method
  • Document conveying device and control method

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] Hereinafter, a document feeding device according to an aspect of the present invention will be described with reference to the drawings. Note, however, that the technical scope of the present invention is not limited to these embodiments, but includes the inventions described in the claims and their equivalents.

[0032] figure 1 It is a perspective view showing the document conveyance device 100 configured as an image scanner.

[0033] The document conveyance device 100 includes an upper case 101 , a lower case 102 , a document table 103 , a discharge table 105 , a plurality of operation buttons 106 , a display device 107 , and the like.

[0034] The upper case 101 is disposed at a position covering the upper surface of the document feeder 100, and is hingedly engaged with the lower case 102 so that it can be opened and closed when a document is jammed or when the inside of the document feeder 100 is cleaned. .

[0035] The document table 103 is engaged with the low...

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Abstract

The present invention provides an original document conveying device and a control method, which can perform document conveying processing at a higher speed while suppressing the occurrence of double feeding of original documents. The original conveying device (100) has a contact portion (101b) that contacts the top ends of a plurality of originals placed on an original table (103), a roller (111) that conveys the originals, and a pressing portion (112) that is provided with At a position opposite to the roller, the original is pressed from the upper side of the original; separation portions (114) and (115) that separate and convey the original; and a first detection portion (113) provided at the contact portion and the separation portion in the original conveyance direction. During the process, the transported original is detected; and the control part (161) causes the pressing part to press the original placed on the original table and rotates the roller at the first speed until the first detection part detects the original. When the original document is detected by the pressing part, the force generated by the pressing part for pressing the original document is reduced and the roller is rotated at a second speed slower than the first speed.

Description

technical field [0001] The invention relates to a manuscript conveying device and a control method, in particular to a manuscript conveying device and a control method for separating and conveying manuscripts. Background technique [0002] Document feeders such as scanners are used for various purposes in various places such as homes and offices, and various types of document feeders are provided according to the usage. In an office, for example, in order to convey a large amount of originals together, the original loading angle of the original table on which the originals are placed is close to the horizontal, and the pickup roller provided on the original table sequentially conveys the originals placed on the lower side, This is a so-called bottom take-out type document feeder. [0003] The document conveying device of the bottom take-out type is provided with a pick-up arm that presses the document placed on the document table from above, so that the pickup roller can pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H3/06B65H5/06
CPCB65H3/063B65H5/062B65H2801/06B65H2701/1131G03G15/6502G03G15/70
Inventor 高藤悠贵
Owner PFU LTD
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