Sheetfed scanner with background switching function

A technology for switching functions and scanners, applied in image communication, electrical components, etc., to solve problems such as easily affecting the results of scanning

Inactive Publication Date: 2008-10-22
AVISION PRECISION IND (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, when the scanner scans thin documents, the background color will easily affect the scanning results

Method used

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  • Sheetfed scanner with background switching function
  • Sheetfed scanner with background switching function
  • Sheetfed scanner with background switching function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Embodiments of the present invention will be described below with reference to the drawings.

[0018] figure 1 showing the sheet-fed scanner according to the first embodiment of the present invention, figure 2 and 3 display separately figure 1 The first and second states of the scanning module. Such as Figures 1 to 3 As shown, a sheet-fed scanner 1 with a background switching function of the present invention is a double-sided sheet-fed scanner that can scan the front and back sides of a document. In practice, however, the concept of the present invention can also be implemented in single-side sheet-fed scanners.

[0019] The sheet-fed scanner 1 includes a scanner housing 10 , a sheet-feeding mechanism 20 , a first scanning module 40 , a first actuator 50 and a first background component 60 . The scanner housing 10 has a paper input tray 12 for carrying documents P to be scanned and a paper output tray 14 for storing scanned documents P. The paper feeding mecha...

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PUM

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Abstract

Said invention provides sheet fed type scanner with switch function. It contains scanning module for scanning file fed by sheet fed mechanism and background assembly located in scanning zone. Said scanning module containing a image transducer, lens and at least reflection mirror. In said invention, Actuator driving said reflection mirror to make image transducer selectivity sensing one region of plurality of regions with different reflectivity of background assembly, to be used as the scanning background of sensed file.

Description

technical field [0001] The invention relates to a paper-fed scanner with a background switching function, in particular to a paper-fed scanner capable of scanning several positions with different light reflectivity on the background component as different scanning backgrounds. Background technique [0002] In a known sheet-fed scanner or a flatbed scanner equipped with an automatic document feeder equipped with a scanning module, since the background of the scanning module is fixed, the scanning background cannot be replaced. The purpose of changing the scanning background is mainly to perform an edge-finding action to find the leading edge, side edge and trailing edge of the paper. Executing the edge-finding action can facilitate the scanner to perform paper skew correction, and enable the scanner to know when to perform image capture, when to end image capture, and to determine the scanning width. Generally, the four sides of the file are white, so the background at this ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04N1/04H04N1/113
Inventor陈继耀
OwnerAVISION PRECISION IND (SUZHOU) CO LTD