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Sheet conveying device and image reading device

A technology for conveying devices and sheets, applied in measuring devices, image communication, optical devices, etc., can solve the problem that the length sensor cannot detect the length of the sheet correctly, the length of the sheet cannot be detected correctly, and the length of the sheet is incorrectly detected, etc. question

Inactive Publication Date: 2019-03-05
TOSHIBA TEC KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are cases where the length of the sheet cannot be detected correctly by the length sensor
For example, in the case of an original with an indeterminate shape, the sheet length may not be detected correctly when the area on the rear side of the original in the conveyance direction is warped due to creases.
In such a case, there is a possibility that the read image is missing due to misdetection of the sheet length

Method used

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  • Sheet conveying device and image reading device
  • Sheet conveying device and image reading device
  • Sheet conveying device and image reading device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Hereinafter, a sheet conveying device according to an embodiment will be described with reference to the drawings.

[0017] figure 1 It is an external view showing a configuration example of the sheet conveying device 10 according to the embodiment. The sheet conveyance device 10 includes a tray 19 . The sheet conveyance device 10 conveys the sheet placed on the tray 19 in the sheet conveyance direction indicated by an arrow 91 . The sheet is, for example, paper or label paper. Disk 19 includes first length sensor 11 , second length sensor 12 , and width sensor 13 . The first length sensor 11 and the second length sensor 12 detect the length of the sheet in the longitudinal direction indicated by an arrow 92 with respect to the sheet placed on the tray 19 . The sheet length refers to the length from one end to the other end of the sheet in the length direction. The width sensor 13 detects the width of the sheet placed on the tray 19 in the width direction indicated...

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PUM

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Abstract

The invention provides a sheet conveying device and an image reading device, capable of reducing a bad influence in subsequent processing due to erroneous detection of the sheet length. A sheet conveying device includes a length sensor configured to detect a length of a sheet to be conveyed, and a processor configured to determine the length of the sheet while operating in a first mode and while operating in a second mode. While operating in the first mode, the processor determines the length detected by the length sensor as the length of the sheet. While operating in the second mode, the processor determines a predefined length as the length of the sheet, wherein the predefined length is greater than a shortest length detectable by the length sensor.

Description

technical field [0001] Embodiments of the present invention relate to a sheet conveying device and an image reading device. Background technique [0002] Conventionally, in the sheet conveying device, the length of the sheet in the conveying direction is detected based on whether or not the length sensor provided on the tray is turned on. However, there are cases where the length sensor cannot correctly detect the length of the sheet. For example, when a document with an indeterminate shape is included, and the area on the rear side of the document in the conveyance direction is warped due to creases, the sheet length may not be accurately detected. In such a case, there is a possibility that the read image is missing due to erroneous detection of the sheet length. Contents of the invention [0003] The technical problem to be solved by the invention [0004] The technical problem to be solved by the present invention is to provide a sheet conveying device and an image ...

Claims

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Application Information

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IPC IPC(8): G03G15/00
CPCG03G15/5029G03G15/65G03G15/6529H04N1/00713H04N1/00655G01B5/043G01B5/046G01B11/043G01B11/046G03G2215/00734G03G15/607
Inventor 伊藤雄
Owner TOSHIBA TEC KK
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