CN101330561A

CN101330561A - Paper-feeding type scanner

Info

Publication number: CN101330561A
Application number: CNA2007101101423A
Authority: CN
Inventors: 李信文
Original assignee: Primax Electronics Ltd
Current assignee: Primax Electronics Ltd
Priority date: 2007-06-18
Filing date: 2007-06-18
Publication date: 2008-12-24

Abstract

The invention provides a paper feed scanner for scanning images of the first surface and the second surface of a piece of paper. The paper feed scanner comprises an automatic paper feed device and a scanner. The automatic paper feed device comprises a U-shaped paper delivering channel, a first scanning window and a first scanning module, wherein, the U-shaped paper delivering channel comprises a paper taking section, a paper reverse rotation section and a scanning section; the first scanning window is arranged at the paper reverse rotation section; the first scanning module is arranged beside the first scanning window for reading the image of the first surface of the paper. The scanner is arranged below the automatic paper feed device and comprises a second scanning window and a second scanning module, wherein, the second scanning window is arranged at the scanning section; and the second scanning module is arranged below the second scanning window for reading the image of the second surface of the paper. The paper feed scanner has the advantages that the paper feed scanner can separate the two scanning modules to avoid the mutual interference, thereby avoiding the problem of overlapping images.

Description

Paper feeding scanner

Technical field

The present invention relates to a kind of paper feeding scanner, particularly relate to a kind of paper feeding scanner that carries out duplex scanning.

Background technology

Present common on the market scanner, except falt bed scanner, another kind disposes automatic paper feeder (ADF; Automatic document feeder) paper feeding scanner little by little is subjected to user's favor, its characteristics are when the user need be scanned a folded file, the user only needs paper is placed on the paper feed pallet of automatic paper feeder, automatic paper feeder will be opened the scan module that is orderly sent in the scanner and scans putting in order stacker, and then finishes scanning work automatically and save operating time and human resources.

And developed at present the paper feeding scanner that, can be in the transport process of paper simultaneously or finish the duplex scanning action of paper in regular turn, Fig. 1 shows and existingly is provided with two scan modules and can carries out the structural representation of the paper feeding scanner of duplex scanning.With reference to Fig. 1, paper feeding scanner 1 comprises automatic paper feeder 11 and scanner 12.Automatic paper feeder 11 comprises paper taking module 111, scanning window 112, scan module 113 and U type paper feed passage 114, and U type paper feed passage 114 then includes gets paper section 114A, paper counter-rotating section 114B and scanning section 114C.Wherein, paper taking module 111 is arranged on to be got in the paper section 114A, in order to the paper S to be scanned inside of feed-in automatic paper feeder 11 in regular turn.112 of scanning windows are transparent window, are arranged on the scanning section 114C.Scan module 113 then is arranged on the top of the other scanning window 112 of scanning section 114C, in order to the image of first S1 reading paper S.In addition, scan module 113 includes light source 113A, reflector group 113B, set of lenses 113C and Charged Coupled Device 113D.

Continuation is with reference to Fig. 1, and scanner 12 is arranged at the below of automatic paper feeder 11, includes scanning window 121 and one scan module 122.Scanning window 121 is a transparent window, equally also is arranged on the scanning section 114C.122 of scan modules are to be used to read paper S image when being used for carrying out platform-type scanning and paper feed type scanning in the scanner 12, and when scanner 12 was carried out paper feed type scannings, 122 of scan modules can be moved to the below of scanning window 121 and read the image of second S2 of paper S.In addition, scan module 122 comprises light source 122A, reflector group 122B, set of lenses 122C and Charged Coupled Device 122D.

Continuation is with reference to Fig. 1, in above-mentioned existing paper feeding scanner 1, because

scan module

113 and 122 is positioned at the scope of scanning section 114C equally, therefore, be subjected to the interference of

light source

113A and 122A each other between two

scan modules

113 and 122 easily and make the phenomenon (or claiming shadow effect) of scanning result generation image overlap, thereby have influence on the quality of scanning of paper feeding scanner 1.For instance, when scan module 113 is reading the image of first S1 of paper, the image of second S2 of paper will be subjected to the irradiation of scan module 122 inner light source 122A and project on the scan module 113, causes scan module 113 to receive the image of first S1 of paper and second S2 of paper simultaneously and makes the phenomenon that occurs image overlap in the scanning result.

Summary of the invention

Main purpose of the present invention is to provide a kind of to be had two scan modules and can carry out the paper feeding scanner of duplex scanning, and in this paper feeding scanner two scan modules is staggered to be provided with and avoid interfering with each other, thereby can not produce the problem of image overlap.

For realizing above-mentioned purpose of the present invention, the invention provides a kind of paper feeding scanner, first and second image in order to the scanning paper, comprise: automatic paper feeder, this automatic paper feeder comprises U type paper feed passage, first scanning window and first scan module, wherein, this U type paper feed passage comprises gets paper section, paper counter-rotating section and scanning section, this first scanning window is arranged at this paper counter-rotating section, and this first scan module is arranged at this first scanning window side in order to read first image of this paper; And scanner, it is arranged at this automatic paper feeder below, this scanner comprises second scanning window and second scan module, wherein, this second scanning window is arranged at this scanning section, and this second scan module then is arranged at this second scanning window below in order to read second image of this paper.

The preferably, paper feeding scanner also comprises the pressure roller that is arranged at this paper counter-rotating section, makes this paper fit in this scanning window in order to push this paper.

The preferably, paper feeding scanner also comprises the paper-pressing sheet that is arranged at this paper counter-rotating section, makes this paper fit in this scanning window in order to push this paper.

The preferably, paper feeding scanner also comprises at least one relaying roller set that is arranged in this paper counter-rotating section.

The preferably, first scan module of this in the paper feeding scanner comprises light source, reflector group, set of lenses and Charged Coupled Device.

The preferably, second scan module of this in the paper feeding scanner comprises light source, reflector group, set of lenses and Charged Coupled Device.

The invention has the advantages that to have two scan modules and can carry out the paper feeding scanner of duplex scanning, two scan modules can be staggered to be provided with and avoid interfering with each other, thereby avoid producing the problem of image overlap.

Description of drawings

Fig. 1 shows the structural representation of paper feeding scanner in the prior art;

Fig. 2 shows the structural representation of the paper feeding scanner that the present invention's first specific embodiment provided;

Fig. 3 A shows the part-structure schematic diagram of the paper feeding scanner that the present invention's first specific embodiment provided; And

Fig. 3 B shows the part-structure schematic diagram according to the paper feeding scanner that other specific embodiment of the present invention provided.

Wherein, description of reference numerals is as follows:

1,2 paper feeding scanners, 215 pressure rollers

11,21 automatic paper feeders, 216 paper-pressing sheets

111,211 paper taking modules, 217 relaying roller set

112,212 scanning windows, 12,22 scanners

113,213 scan modules, 121,221 scanning windows

113A, 213A light source 122,222 scan modules

113B,

213B reflector group

122A, 222A light source

113C, 213C set of

lenses

122B, 222B reflector group

113D, 213D Charged

Coupled Device

122C, 222C set of lenses

114,214 U type

paper feed passage

122D, 222D Charged Coupled Device

114A, 214A get paper section S paper

First of 114B, 214B paper counter-rotating section S1 paper

114C, 214C scan second of section S2 paper

Embodiment

Provide a kind of paper feeding scanner according to first specific embodiment of the present invention, and the structural representation of this paper feeding scanner please refer to Fig. 2.Paper feeding scanner 2 comprises automatic paper feeder 21 and scanner 22.Automatic paper feeder 21 comprises paper taking module 211, scanning window 212, scan module 213 and U type paper feed passage 214.U type paper feed passage 214 is the passage that transmits paper S in the automatic paper feeder 21, includes to get paper section 214A, paper counter-rotating section 214B and scanning section 214C.Wherein, paper taking module 211 is arranged on to be got in the paper section 214A, in order to the paper S inside of feed-in automatic paper feeder 21 in regular turn.212 of scanning windows are transparent window, are arranged on paper counter-rotating section 214B.It is other that scan module 213 then is arranged on scanning window 212, in order to the image of first S1 reading paper S.In addition, scan module 213 includes light source 213A, reflector group 213B, set of lenses 213C and Charged Coupled Device 213D.

Continuation is with reference to Fig. 2, and scanner 22 is arranged at automatic paper feeder 21 belows, includes scanning window 221 and scan module 222.Scanning window 221 is a transparent window, is arranged on scanning section 214C.222 of scan modules read the usefulness of paper S image when being used for carrying out platform-type scanning and paper feed type scanning in the scanner 22, and when scanner 22 was carried out paper feed type scannings, 222 of scan modules can be moved to the below of scanning window 221 and read the image of second S2 of paper S.In addition, scan module 222 includes light source 222A, reflector group 222B, set of lenses 222C and Charged Coupled Device 222D.

Continuation is with reference to Fig. 2, in the paper feeding scanner 2 that above-mentioned present embodiment provided, except being provided with in scanner 22 scan module 222, also the paper of U type paper feed passage 214 counter-rotating section 214B is provided with another scan module 213 in automatic paper feeder 21.Therefore, pass through in the process of U type paper feed passage 214 at paper S,

scan module

213 and 222 just can successively read the image of first S1 of paper and second S2 and finish the work of duplex scanning, and the

scan module

213 and 222 that was arranged in two minutes can not be subjected to the interference of

light source

213A and 222A each other yet and makes the phenomenon of the unlikely generation image overlap of scanning result.

Then, please refer to shown in Fig. 3 A part-structure schematic diagram about the paper feeding scanner 2 that present embodiment provided.Because the scan module 213 in the paper feeding scanner 2 in the automatic paper feeder 21 is arranged on by the paper counter-rotating section 214B of U type paper feed passage 214, therefore, automatic paper feeder 21 is provided with a pressure roller 215 at paper counter-rotating section 214B especially, in order to making its applying scanning window 212, thereby guarantee that paper S maintains in the depth of field of scan module 213 and burnt phenomenon is lost in unlikely generation when paper S presses paper S during by paper counter-rotating section 214B.

The paper feeding scanner 2 that present embodiment provided is provided with pressure roller 215 and makes the paper S scanning window 212 of being fitted at paper counter-rotating section 214B; But, according in the paper feeding scanner that other specific embodiment of the present invention provided, also can adopt paper-pressing sheet 216 as shown in Fig. 3 B, it equally also can press paper S and make its applying scanning window 212 when paper S reverses section 214B by paper.

With reference to Fig. 2, in paper feeding scanner 2 provided by the present invention, automatic paper feeder 21 can be set up at least one group of relaying roller set 217 in the paper in U type paper feed passage counter-rotating section 214B, smoothly the paper S of 211 feed-ins of paper taking module is sent to

scan module

213 and 222 and finish the duplex scanning of paper S in order to the power that transmits paper S to be provided.

Above-described embodiment only is explanation technological thought of the present invention and characteristics, its purpose makes those skilled in the art can understand content of the present invention and is implementing according to this, can not be in order to limit claim scope of the present invention, be that every equalization of doing according to disclosed spirit changes or modification, must be encompassed in the claim scope of the present invention.

Claims

1. paper feeding scanner, first and second image in order to the scanning paper comprise:

Automatic paper feeder, this automatic paper feeder comprises U type paper feed passage, first scanning window and first scan module, wherein, this U type paper feed passage comprises gets paper section, paper counter-rotating section and scanning section, this first scanning window is arranged at this paper counter-rotating section, and this first scan module is arranged at this first scanning window side in order to read first image of this paper; And

Scanner, it is arranged at this automatic paper feeder below, this scanner comprises second scanning window and second scan module, wherein, this second scanning window is arranged at this scanning section, and this second scan module is arranged at this second scanning window below in order to read second image of this paper.

2. paper feeding scanner as claimed in claim 1 is characterized in that, this paper feeding scanner also comprises the pressure roller that is arranged at this paper counter-rotating section, makes this paper fit in this scanning window in order to push this paper.

3. paper feeding scanner as claimed in claim 1 is characterized in that, this paper feeding scanner also comprises the paper-pressing sheet that is arranged at this paper counter-rotating section, makes this paper fit in this scanning window in order to push this paper.

4. paper feeding scanner as claimed in claim 1 is characterized in that, this paper feeding scanner also comprises at least one relaying roller set that is arranged in this paper counter-rotating section.

5. paper feeding scanner as claimed in claim 1 is characterized in that, this first scan module comprises light source, reflector group, set of lenses and Charged Coupled Device.

6. paper feeding scanner as claimed in claim 1 is characterized in that, this second scan module comprises light source, reflector group, set of lenses and Charged Coupled Device.