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Double-side scanning method capable of fast measuring document's size

A double-sided scanning and file technology, applied in the field of double-sided scanning, can solve problems such as inconvenient use, inability to select printing paper size by the printing unit, and complicated control process

Active Publication Date: 2005-12-14
AVISION PRECISION IND (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, the double-sided scanning speed may be slowed down due to simultaneous scanning of document images and detection of document size, and the entire control process is also complicated
[0007] In addition, since document scanning and size detection are completed almost at the same time, the scanning device cannot quickly complete the action of automatically frame-selecting the scanning range, and even the printing unit connected internally or externally to the scanning device cannot select the size of the required printing paper action, quite inconvenient to use

Method used

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  • Double-side scanning method capable of fast measuring document's size
  • Double-side scanning method capable of fast measuring document's size

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Embodiment Construction

[0013] figure 2 A flowchart of the double-sided scanning method of the present invention is shown. The scanning method of the present invention is also suitable for figure 1 In the scanning device. Such as figure 2 versus figure 1 As shown, first, as shown in step 210, it is a pre-turning step for feeding the document P from the tray 102 through the first channel 104, the second channel 106, the scanning area 116, and the third channel 108 to The reversal area 112 simultaneously detects the size of the document P to generate a size signal. The size of the document may include the length and / or width of the document. The document length can be determined by detecting the leading edge and trailing edge of the document.

[0014] Then, as shown in step 220, the document P is fed from the reversing area 112 through the scanning area 116 to the reversing area 112, so that the scanning module 130 can scan the document P in the scanning area 116 according to a preset mode or according ...

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Abstract

The double-sided scanning method capable of detecting the size of the file includes the following steps: A. feeding one file from the paper feeding cassette into the turning area while detecting the size of the file to generate one size signal; B. feeding the file from the turning area via the scanning area and to the turning area, so that the scanning module can scan the back side of the file in the scanning area based on the size signal; and C. feeding the file from the turning area via the scanning and to the paper discharging cassette, so that the scanning module can scan the right side of the file in the scanning area based on the size signal.

Description

Technical field [0001] The present invention relates to a double-sided scanning method that can quickly detect the size of a document, in particular to a double-sided scanning method that first flips the document and detects the document size, and then scans the back and the front of the document to speed up the document size detection and shorten the double-sided The double-sided scanning method that takes the time to scan. Background technique [0002] When the known double-sided scanning device with a single scanning module performs double-sided scanning, the document needs to be fed through the scanning area three times. When the document passes through the scanning area for the first time, the scanning module scans the front side of the document; when the document passes through the scanning area for the second time, the scanning module scans the back side of the document; and when the document passes through the scanning area for the third time,...

Claims

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Application Information

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IPC IPC(8): H04N1/203
Inventor 连思惠王柏翔
Owner AVISION PRECISION IND (SUZHOU) CO LTD
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