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Paper feeding type scanner with cleaning mechanism

A technology for cleaning mechanisms and scanners, applied in image communication, electrical components, etc., can solve the problems of wear and tear of scanned manuscripts, unbalanced scanning speed of scanning modules, elongated and deformed images, etc. Simple and effective, guarantees clean and quality results

Inactive Publication Date: 2009-01-14
QISDA SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many defects in the design of this mechanism. First, it is difficult to fix the cleaning block on one side of the scanning end face; second, the large surface friction force brought by the cleaning block often leads to an increase in the feeding resistance of the scanned manuscript, which in turn causes the scanning module to The scanning speed is not balanced, and the image will be elongated and deformed. At the same time, the large frictional resistance will cause wear and tear on delicate scanned documents such as photos, or the local traction between the feeding roller and the cleaning block will be too large, which will make the scanned documents In the case of tearing and damage
On the other hand, since the cleaning block must be fixedly set, it is not easy to clean after a large amount of impurity dust adheres to its cleaning end surface, and the impurity dust gathers into large particles and is easy to fall off and is brought to the glass window of the scanning component along with the scanned document, causing further damage. large scan defect

Method used

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  • Paper feeding type scanner with cleaning mechanism
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  • Paper feeding type scanner with cleaning mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 The working principle of the paper-fed scanner with cleaning mechanism is as follows: figure 2 As shown, the CIS scanning module 230 is set statically relative to the body of the paper-fed scanner, and the front end of the scanning module 230 scanning the manuscript 260 is driven by the paper-feeding roller 240, so that the glass window 231 faces the upper end surface of the scanning manuscript 260 Perform linear scanning and obtain scanned images. The cleaning door curtain 250 is erected in the paper feeding direction at the front end of the scanning module 230. The lower end 252 of the cleaning door curtain 250 contacts the scanning end surface of the scanned manuscript 160 to remove dust and other objects attached thereto, thereby Effectively ensure the cleaning performance of the scanning end face, and avoid the occurrence of the attachments adhering to the glass window and affecting the scanning image quality. The upper end 251 of the cleaning door cu...

Embodiment 2

[0037] Example 2 Image 6 A schematic cross-sectional structure diagram of another embodiment of the present invention is shown; the scanner 300 is a miniaturized portable scanner, the CIS scanning module 330 of the scanner 300 is statically arranged relative to the scanner body 310, and the right side of the scanner 300 The side is the paper feeding inlet 320 with the manuscript supporting board 370, and the left side is the paper feeding outlet. The scanned side of the manuscript. On the inner side of the blocking portion 380 above the paper feeding inlet 320 of the scanner, an upright cleaning door curtain 350 is arranged. The cleaning door curtain 350 is an elastic sheet of composite foam material, and its upper end 351 is provided with a dovetail-shaped protrusion, and The inner wall of the scanner housing is provided with a matching dovetail groove, and the dovetail-shaped protrusion of the cleaning curtain 350 is embedded in the dovetail groove, and its lower end 352 i...

Embodiment 3

[0038] Example 3 Figure 7 A schematic cross-sectional structure diagram of Embodiment 3 of the present invention is shown. The scanner 400 is a miniaturized portable scanner. The CIS scanning module 430 of the scanner is statically arranged relative to the scanner body 410. The right side of the scanner 400 is There is a paper feeding inlet 420 with a manuscript supporting board 470, and the left side is a paper feeding outlet. The scanning module 430 is located at the upper left side of the manuscript supporting board 470, and its glass window 431 faces the scanning end face of the scanning manuscripts that enter through the paper feeding inlet 420. . On the inner side of the stopper 480 above the paper feeding inlet 420 of the scanner, there is a cleaning door curtain 450 with an inclined angle. The cleaning door curtain 450 is a flexible sheet, and it is about 160 degrees to the feeding direction of the scanned manuscript. The obtuse angle is set, and its lower end 452 ca...

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PUM

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Abstract

A paper-feeding type scanner with a cleaning mechanism includes a scanner housing; a scanning module group, for scanning feed-in scanning manuscript; a cleaning curtain, which is vertically provided on the paper-feeding direction of the front end of the scanning module group, wherein, one end of cleaning curtain is fixed on the paper-feeding type scanner, and the edge of the other end is in elastic contact with the feed-in scanning manuscript for cleaning the scanning end-face of the scanning manuscripts. The invention has advantages of simple structure, simple and effective cleaning manner for the scanning manuscript, low fabricating cost, wide application in various paper-feeding type scanners, long-term assurance of cleaning of the scanning end-face of the scanning manuscript and cleaning and quality of the scanning module group and glass window, and capability of stopping affection of large friction drag of the cleaning assembly to the scanning quality.

Description

technical field [0001] The invention belongs to scanning equipment or an auxiliary device of the scanning equipment, and in particular relates to a paper-feed scanner with a cleaning mechanism for cleaning and scanning manuscripts in the paper-feed scanner. Background technique [0002] A scanner is an electronic input device widely used at present, and its key components include a scanning module and a mechanical transmission part. Due to the simple structure of the mechanical transmission part, the paper-fed scanner can realize a miniaturized design, making it a portable scanning input tool. A sheet-fed scanner generally adopts a method in which a CIS (Contact Image Sensor) is stationary relative to the scanner body, and scanned documents are scanned relative to the scanner body. This method is especially suitable for portable scanning devices with a relatively small size, and is used for scanning small manuscripts such as photos, receipts, business cards, and cards. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/04H04N1/12
CPCH04N1/1215H04N1/00909H04N1/193
Inventor 朱颖奇李力
Owner QISDA SUZHOU
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