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Paper size detecting mechanism

A paper size and paper tray technology, applied in the field of size detection mechanism that automatically detects the size of documents to be scanned, can solve problems such as misjudgment, complicated paper classification and judgment, and failure to meet the use requirements

Inactive Publication Date: 2005-12-28
AVISION PRECISION IND (SUZHOU) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the constant friction between the conductor and the resistor, the service life of the detection mechanism is limited. In addition, the numerical change of the current or voltage is unstable, and the classification and judgment of the paper is complicated. Does not meet the usage requirements

Method used

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  • Paper size detecting mechanism
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Examples

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Embodiment Construction

[0042] Such as figure 1 As shown, an automatic document feeder module includes a paper input tray 10 and an output tray 20 . The paper tray 10 can be used for placing documents to be scanned, and can cooperate with the paper feeding mechanism to automatically feed the documents.

[0043] Such as figure 2 As shown, the paper tray 10 includes a paper tray 12 and two opposite paper guides 14 , 16 . One surface of the paper tray 12 is defined as a paper placement surface 13 , and the paper placement surface 13 is used as a position for placing paper. The surface opposite to the paper surface 13 is defined as the bottom surface 15 .

[0044] The two opposite paper guides 14 , 16 are set on the paper tray 12 and protrude from the paper surface 13 . The two paper guides 14, 16 can approach or move away from each other as they move.

[0045] Such as image 3 and Figure 4 As shown, an induction component module 30 is fixed on the bottom surface 15 of the paper tray 12 . The s...

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Abstract

The invention provides a paper size detection mechanism, comprising: a paper tray with a paper placement surface and a bottom surface opposite to the paper placement surface; a logic board located above the bottom surface of the paper tray, the logic board surface is provided with multiple features part; at least one paper guide, arranged on the paper tray and capable of moving on the paper tray; an induction assembly module comprising a plurality of induction assemblies; one of the induction assembly module and the logic board It is fixedly connected with the paper guide, and the other is fixed on the bottom surface of the paper tray. When the paper guide moves, the multiple sensing components on the sensing component module are connected to the multiple sensing components on the logic board. The characteristic parts move relative to each other, so that the corresponding characteristic parts can pass through the corresponding sensing components, and generate signals corresponding to different sizes of paper in the plurality of sensing components. By adjusting the width of the paper guide corresponding to the paper placement width, the logic board and the sensing component module are relatively moved to generate various digital information as a basis for judging the paper width.

Description

technical field [0001] The invention relates to a paper size detection mechanism, especially a size detection mechanism used in an image scanning device to automatically detect the size of a document to be scanned. Background technique [0002] Traditional scanners must be connected to a computer. When scanning, the entire document to be scanned will be pre-scanned first, and then the user selects the desired scanning range to scan. Or, after the scanner finishes scanning the document, the image is sent to the image processing software, and the user selects the desired range. Therefore, there is no need to detect the size of the paper when using a conventional scanner. [0003] The automatic document feeding device is often used in conjunction with the scanner, and because A4 paper is the most commonly used, the automatic document feeding device uses A4 as the most commonly used paper feeding size, and is not equipped with a detection mechanism...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K15/16
Inventor 连思惠王东隆
Owner AVISION PRECISION IND (SUZHOU) CO LTD
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