CN102025884B - Double-sided scanning device - Google Patents

Double-sided scanning device Download PDF

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Publication number
CN102025884B
CN102025884B CN 200910170359 CN200910170359A CN102025884B CN 102025884 B CN102025884 B CN 102025884B CN 200910170359 CN200910170359 CN 200910170359 CN 200910170359 A CN200910170359 A CN 200910170359A CN 102025884 B CN102025884 B CN 102025884B
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light beam
scanning
paper
order
document
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CN102025884A (en
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廖启超
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Primax Electronics Ltd
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Primax Electronics Ltd
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Abstract

The invention relates to a double-sided scanning device, which comprises an automatic paper feeder and a platform type scanner, wherein the automatic paper feeder comprises a feeder shell, a scanning glass sheet and a first light source; and the platform type scanner comprises a scanner shell, a glass platform, a second light source and a scanning module. In the double-sided scanning device, as the scanning glass sheet and the first light source are arranged in the automatic paper feeder and scanning is performed in the automatic paper feeder, the two sides of a file can be scanned by feeding the file once and the quality of the scanning in the automatic paper feeder can be improved; and thus, the drawbacks of the conventional double-sided scanning device are overcome.

Description

Double-faced scanning device
Technical field
The present invention relates to scanning means, especially relate to a kind of double-faced scanning device that can carry out to file duplex scanning.
Background technology
The main function of scanning means is to carry out IMAQ, converts e-file in order to the content with the hard copy file to by the mode that scans, so that the user propagates, puts in order or preserves.Along with the maturation of scanning means technology, scanning means is universalness more and more also.
Scanning means the earliest only can the scanning document single face image, when the user wants the two-sided image of scanning document, must be with manual mode with the file turn-over to allow the image that scanning means can the scanning document another side.In view of manual turn-over too bothers, therefore develop on the market the paper feedback scanning device that can not need manual turn-over, so that the user only needs a folded file is positioned on the feeding box of paper feedback scanning device, then can not need manual turn-over and finish the scanning of this folded file.
In recent years because market day by day promotes for the demand of duplex scanning, but so the personage of this area also be devoted to provide the paper feedback scanning device of the two-sided image of scanning document, namely double-faced scanning device.
General double-faced scanning device has two kinds, and the first is the double-faced scanning device with one group of scan module.Owing to only have one group of scan module, therefore, then must file be overturn by specific mechanism design if want the two sides of scanning document, just can reach the purpose of duplex scanning.In the scanning process of this kind double-faced scanning device, file need to be fed secondary (being called Two-pass) usually or three times (being called Three-pass) just can finish duplex scanning one time.The inconvenience of this kind double-faced scanning device is that the activity duration is oversize.
Another kind of double-faced scanning device is the scanning means with two groups of scan modules.These two groups of scan modules lay respectively at the both sides of the file in the scanning area with the image of two of file readings, so file need only be fed once (being called One-pass) and can finish the operation of duplex scanning.With the first double-faced scanning device by comparison, the second double-faced scanning device is relatively saved time, but cost is higher.
Improvement along with scanning means, above-mentioned two kinds of double-faced scanning devices can't satisfy user's demand, patent disclosure case No. 00571561 patent in Taiwan provides a kind of double-faced scanning device, file only need once be presented and the file that need not overturn can be finished duplex scanning, wherein double-faced scanning device only has the one scan module.See also Fig. 1, it is the structural representation of existing double-faced scanning device.This double-faced scanning device 1 comprises an automatic paper feeder 11 and one scan module 12, and scan module 12 comprises a light source 121, a speculum 122, lens 123 and an optics sensing element 124.And automatic paper feeder 11 comprises paper feed port 111, file tow-away zone 112, exit slot 113, the first scanning area 114, the second scanning area 115, light transmission passage 116, paper feed roller 1171,1172,118 and 119.
When double-faced scanning device 1 carries out the duplex scanning of file (not being shown among the figure), file is entered by paper feed port 111 and is presented by paper feed roller 1171 and 1172, when file passes through the first scanning area 114, the light source 121 of scan module 12 produces light beams and light beam is projeced on the first surface of file by light transmission passage 116, next file reverse irradiating light beam, make the light beam that is reflected be reflected mirror 122 reflection and scioptics 123, final beam is received by optics sensing element 124 and obtains the image of the first surface of file.Next, file is fed by file tow-away zone 112 and by paper feed roller 118 and is fed to the second scanning area 115, at this moment, file is reversed, and scan module 12 scans the second face of file in the same manner as described above, at last, file is presented by paper feed roller 119 and is left double-faced scanning device 1 by exit slot 113.
Existing double-faced scanning device 1 makes scan module 12 can carry out the duplex scanning of file by two scanning areas 114 and 115 are set.Yet light source 121 distances first scanning area 114 of existing duplex scanning module 1 is too far away, and in fact the light beam that light source 121 is produced can't be projected on the file, and can't scan.If existing double-faced scanning device 1 adopts the higher light source of intensity perhaps its light beam can be projected on the file, but its quality of scanning limited then.
Summary of the invention
The technical problem that the present invention mainly solves is, for the prior art above shortcomings, providing a kind of only needs feed documents once just can carry out duplex scanning and have the double-faced scanning device of high quality of scanning.
The technical solution adopted for the present invention to solve the technical problems provides a kind of double-faced scanning device, and in order to reading the image of a file, this double-faced scanning device comprises presenting the automatic paper feeder of this document and in order to scan the falt bed scanner of this document; Wherein, this automatic paper feeder comprises paper feeder housing, scanning glass sheet and the first light source, and this scanning glass sheet is positioned at the first scanning area; This first light source is positioned at a side of this first scanning area, is projeced on the first surface of this document in order to produce the first light beam; This falt bed scanner comprises scanner housing, glass platform, secondary light source and scan module, this scanner housing is positioned at the below of this paper feeder housing and has the first breach and the second breach, and this first breach is positioned at the below of this first scanning area, and this second breach is positioned at the below of the second scanning area; This glass platform is covered in this first breach and this second breach; This secondary light source is positioned at a side of this second scanning area, is projeced in order to produce the second light beam on second of this document; This scan module in order to scan this document, comprises moving reflector, a plurality of stationary mirror, optical sensing module and transmission mechanism, and this moving reflector is used to this first light beam of the first angle reflection or in this second light beam of the second angle reflection; These a plurality of stationary mirrors are in order to reflect this first light beam or this second light beam; This optical sensing module is in order to receive this first light beam or this second light beam; This transmission mechanism is connected in this moving reflector, in order to change the angle of this moving reflector, makes this moving reflector be in this first angle or this second angle; Wherein the light path of this first light beam equals the light path of this second light beam.
This optical sensing module comprises:
Lens are used so that this first light beam or this second light beam focus on; And
The optics sensing element is in order to receive this first light beam or this second light beam and those light beams can be converted to electronic signal.
This optics sensing element is charge coupled cell (Charge Coupled Device, CCD).
This automatic paper feeder also comprises paper pressing device, and this paper pressing device is positioned at this first scanning area, with so that this document is in flat condition.
This paper pressing device is paper-pressing sheet.
This paper feeder housing also comprises light transmission passage, this light transmission passage between this scanning glass sheet and this falt bed scanner, with so that this first light beam by entering this falt bed scanner.
This automatic paper feeder also comprises paper-feeding channel, use so that this document that is fed passes through, and this paper-feeding channel is by this first scanning area and this second scanning area.
This paper-feeding channel by this first scanning area to the distance of this second sweep interval length more than or equal to a letter size (Letter Size).
This automatic paper feeder also comprises feeding box and paper output box, and this feeding box is positioned at an end of this paper-feeding channel, and in order to placing this document be not scanned, and this paper output box is positioned at the other end of this paper-feeding channel, is scanned this document of finishing in order to placement.
This automatic paper feeder also comprises a plurality of conveying rollers, and these a plurality of conveying rollers are positioned on this paper-feeding channel, makes it mobile in this paper-feeding channel in order to present this document.
The present invention also provides a kind of double-faced scanning device, and in order to reading the image of a file, this double-faced scanning device comprises presenting the automatic paper feeder of this document and in order to scan the falt bed scanner of this document; Wherein, this automatic paper feeder comprises paper feeder housing, scanning glass sheet and the first light source, and this scanning glass sheet is positioned at the first scanning area; This first light source is positioned at a side of this first scanning area, is projeced on the first surface of this document in order to produce one first light beam; This falt bed scanner comprises scanner housing, glass platform, secondary light source and scan module, this scanner housing is positioned at the below of this paper feeder housing and has the first breach and the second breach, and this first breach is positioned at the below of this first scanning area, and this second breach is positioned at the below of the second scanning area; This glass platform is covered in this first breach and this second breach; This secondary light source is positioned at a side of this second scanning area, is projeced in order to produce the second light beam on second of this document; This scan module in order to scan this document, comprises moving reflector, a plurality of stationary mirror, optical sensing module and transmission mechanism, and this moving reflector is used to primary importance and reflects this first light beam or reflect this second light beam in the second place; These a plurality of stationary mirrors are in order to reflect this first light beam or this second light beam; This optical sensing module is in order to receive this first light beam or this second light beam; This transmission mechanism is connected in this moving reflector, and the position in order to mobile this moving reflector can be moved this moving reflector between this primary importance and this second place; Wherein the light path of this first light beam equals the light path of this second light beam.
This optical sensing module comprises:
Lens are used so that this first light beam or this second light beam focus on; And
The optics sensing element is in order to receive this first light beam or this second light beam and those light beams can be converted to electronic signal.
This optics sensing element is charge coupled cell.
This automatic paper feeder also comprises paper pressing device, and this paper pressing device is positioned at this first scanning area, with so that this document is in flat condition.
This paper pressing device is paper-pressing sheet.
This paper feeder housing also comprises light transmission passage, this light transmission passage between this scanning glass sheet and this falt bed scanner, with so that this first light beam by entering this falt bed scanner.
This automatic paper feeder also comprises paper-feeding channel, use so that this document that is fed passes through, and this paper-feeding channel is by this first scanning area and this second scanning area.
This paper-feeding channel by this first scanning area to the distance of this second sweep interval length more than or equal to a letter size.
This automatic paper feeder also comprises feeding box and paper output box, and this feeding box is positioned at an end of this paper-feeding channel, and in order to placing this document be not scanned, and this paper output box is positioned at the other end of this paper-feeding channel, is scanned this document of finishing in order to placement.
This automatic paper feeder also comprises a plurality of conveying rollers, and these a plurality of conveying rollers are positioned on this paper-feeding channel, makes it mobile in this paper-feeding channel in order to present this document.
Double-faced scanning device of the present invention only needs feed documents once just can carry out duplex scanning to file, and by being set, scanning glass sheet and the first light source in automatic paper feeder, carry out scanning work in automatic paper feeder, can be lifted at the quality of scanning that scans in the automatic paper feeder, to improve the shortcoming of existing double-faced scanning device.In addition, double-faced scanning device of the present invention changes the state of moving reflector and reflects the first light beam or the second light beam in the duplex scanning process, transmission mechanism as its power resources only need move or rotate moving reflector, and need not move whole scan module with energy savings.
Description of drawings
Fig. 1 is the structural representation of existing double-faced scanning device.
Fig. 2 is the structural representation of the first surface of double-faced scanning device the first preferred embodiment scanning document of the present invention.
Fig. 3 is second structural representation of double-faced scanning device the first preferred embodiment scanning document of the present invention.
Fig. 4 is the structural representation of the first surface of double-faced scanning device the second preferred embodiment scanning document of the present invention.
Fig. 5 is second structural representation of double-faced scanning device the second preferred embodiment scanning document of the present invention.
Embodiment
See also Fig. 2, it is the structural representation of the first surface of double-faced scanning device the first preferred embodiment scanning document of the present invention.In this preferred embodiment, double-faced scanning device 2 comprises an automatic paper feeder 21 and a falt bed scanner 22.Automatic paper feeder 21 is in order to feed documents D, and automatic paper feeder 21 comprises a paper feeder housing 211, one scan sheet glass 212, one first light source 214, a paper pressing device 215, a paper-feeding channel 216, a feeding box 217, a paper output box 218 and a plurality of conveying roller 219, paper feeder housing 211 has a light transmission passage 2111, scanning glass sheet 212 is positioned at one first scanning area 213, and light transmission passage 2111 is between scanning glass sheet 212 and falt bed scanner 22.The first light source 214 is positioned at a side of the first scanning area 213, is projeced on the first surface F1 of file D in order to produce one first light beam B1.Paper pressing device 215 is positioned at the first scanning area 213, and with the scanning so that file D is in flat condition, in this preferred embodiment, paper pressing device 215 is paper-pressing sheets.Paper-feeding channel 216 usefulness are so that the file D that is fed passes through, and paper-feeding channel 216 is by the first scanning area 213 and the second scanning area 222.Feeding box 217 is positioned at an end of paper-feeding channel 216, and in order to placing the file D be not scanned, and paper output box 218 is positioned at the other end of paper-feeding channel 216, is scanned the file D that finishes in order to placement.And a plurality of conveying rollers 219 are positioned on the paper-feeding channel 216, make it mobile in paper-feeding channel 216 in order to feed documents D.
And falt bed scanner 22 is in order to scanning document D, and falt bed scanner 22 comprises one scan instrument housing 221, a glass platform 223, a secondary light source 224 and one scan module 225.Scanner housing 221 is positioned at the below of paper feeder housing 211, and scanner housing 211 has one first breach 2211 and one second breach 2212, wherein the first breach 2211 is positioned at the below of the first scanning area 213, and the second breach 2212 is positioned at the below of the second scanning area 222.Glass platform 223 is covered in the first breach 2211 and the second breach 2212.Secondary light source 224 is positioned at a side of the second scanning area 222, is projeced on second F2 of file D in order to produce one second light beam B2 (referring to Fig. 3).Scan module 225 is in order to scanning document D, and scan module 225 comprises a moving reflector 2251, a plurality of stationary mirror 2252, an optical sensing module 2253 and a transmission mechanism 2254.Moving reflector 2251 is used to the first angle reflection the first light beam B1 or in the second angle reflection the second light beam B2.A plurality of stationary mirrors 2252 are in order to reflect the first light beam B1 or the second light beam B2.Optical sensing module 2253 obtains first surface image or second image of file D in order to receive the first light beam B1 or the second light beam B2, optical sensing module 2253 comprises focusing on the lens 22531 of the first light beam B1 or the second light beam B2 and an optics sensing element 22532 that those light beams is converted to electronic signal, wherein optics sensing element 22532 is a charge coupled cell (Charge Coupled Device, CCD).And transmission mechanism 2254 is connected in moving reflector 2252, in order to change the angle of moving reflector 2252, makes moving reflector 2252 present the first angle or the second angle.
Please continue to consult Fig. 2, when user's wish utilizes 2 couples of file D of double-faced scanning device to carry out duplex scanning, be placed on feeding box 217 file D first surface F1 down, and its second F2 is up.During the scanning beginning, conveying roller 219 is presented file D and is entered paper-feeding channel 216, and next, file D enters the first scanning area 213 and passes through on scanning glass sheet 212, at this moment, paper pressing device 215 is pressed against file D and makes file D keep smooth so that scanning on the scanning glass sheet 212.On the other hand, the first light source 214 that is positioned at the first scanning area 213 1 sides produces the first light beam B1, and the first light beam B1 is projeced on the first surface F1 of file D, then the first light beam B1 is passed scanning glass sheet 212 by the first surface F1 of file D reflection, light transmission passage 2111, glass platform 223 and the first breach 2211 and be projeced on the stationary mirror 2252 that is positioned at the first breach 2211 belows, and stationary mirror 2252 reflexes to moving reflector 2251 with the first light beam B1, similarly, moving reflector 2251 reflections the first light beam B1 makes the first light beam B1 pass lens 22531 and is received by optics sensing element 22532, and the first light beam B1 images in the optics sensing element 22532 and is converted into electronic signal.File D is mobile in the first scanning area 213, and the first light beam B1 then is projeced on the file D synchronously, and when file D left the first scanning area 213, the first surface F1 of file D scanning was finished.
File D continues in the paper-feeding channel 216 mobile, and conveying roller 219 is presented file D and is entered the second scanning area 222, what need special instruction is, because paper-feeding channel 216 has the single-revolution zone in the section of 222 of the first scanning area 213 and the second scanning areas, so that file D enters second F2 state down that the second scanning area 222 namely presents file D before, as shown in Figure 3.
Among Fig. 3, transmission mechanism 2254 rotates moving reflector 2251, makes it change to the second angle by the first angle.When file D is fed and enters the second scanning area 222, the secondary light source 224 that is positioned at the second scanning area 222 1 sides produces the second light beam B2, and the second light beam B2 is projeced on second F2 of file D, the second light beam B2 is passed glass platform 223 and the second breach 2212 by second F2 reflection of file D and is projeced on the stationary mirror 2252 that is positioned at the second breach 2212 belows, and stationary mirror 2252 reflexes to moving reflector 2251 with the second light beam B2, and next moving reflector 2251 reflections the second light beam B2 makes it pass lens 22531 and received by optics sensing element 22532.When file D left the second scanning area 222, second the F2 scanning of file D was finished.In the duplex scanning process of file D, the light path of the first light beam B1 equals the light path of the second light beam B2.At last, file D is transmitted roller 219 and is fed to paper output box 218 and finishes duplex scanning.From the above, double-faced scanning device 2 utilizes one scan module 225 to scan respectively at two scanning areas 213,222, therefore, paper-feeding channel 216 by 222 of the first scanning area 213 to second scanning areas must have certain length, make the moving reflector 2251 of scan module 225 have the sufficient time and change its angle in order to carry out the scanning of second F2 of file D, therefore, paper-feeding channel 216 must be more than or equal to the length of a letter size (Letter Size) by the distance of 222 of the first scanning area 213 to second scanning areas.In this preferred embodiment, paper-feeding channel 216 is equaled the length of a letter size by the distance of 222 of the first scanning area 213 to second scanning areas.
In addition, the present invention also provides the second preferred embodiment of double-faced scanning device, sees also Fig. 4, and it is the structural representation of the first surface of double-faced scanning device the second preferred embodiment scanning document of the present invention.Double-faced scanning device 3 comprises an automatic paper feeder 31 and a falt bed scanner 32.Automatic paper feeder 31 comprises a paper feeder housing 311, one scan sheet glass 312, one first light source 314, a paper pressing device 315, a paper-feeding channel 316, a feeding box 317, a paper output box 318 and a plurality of conveying roller 319.Paper feeder housing 311 has a light transmission passage 3111, and scanning glass sheet 312 is positioned at one first scanning area 313, and light transmission passage 3111 is between scanning glass sheet 312 and falt bed scanner 32.
Falt bed scanner 32 comprises one scan instrument housing 321, a glass platform 323, a secondary light source 324 and the one scan module 325 with one first breach 3211 and one second breach 3212.And scan module 325 comprises a moving reflector 3251, a plurality of stationary mirror 3252, an optical sensing module 3253 and a transmission mechanism 3254, and wherein optical sensing module 3253 comprises lens 32531 and an optics sensing element 32532.The structure of the double-faced scanning device 3 of the second preferred embodiment and the function of each element are identical haply with the double-faced scanning device of the first preferred embodiment, and the transmission mechanism 3254 that difference is to be connected in moving reflector 3251 is in order to mobile moving reflector 3251.
Among Fig. 4, the moving reflector 3251 in the falt bed scanner 32 is positioned at primary importance.When user's wish is utilized 3 couples of file D of double-faced scanning device *When carrying out duplex scanning, be placed on the file D of feeding box 317 *First surface F1 *Down, and its second F2 *Up.During the scanning beginning, conveying roller 319 is with file D *Present and enter paper-feeding channel 216 and prepare to enter the first scanning area 313.In the first scanning area 313, file D *On scanning glass sheet 312 by and paper pressing device 315 with file D *Be pressed against and make file D on the scanning glass sheet 312 *Keep smooth, simultaneously, the first light source 314 that is positioned at the first scanning area 313 1 sides produces the first light beam B1 *, and the first light beam B1 *Be projeced into file D *First surface F1 upper and by its first surface F1 *Reflection and enter falt bed scanner 32, wherein the first light beam B1 *Pass scanning glass sheet 312, light transmission passage 3111, glass platform 323 and the first breach 3211 and enter in the falt bed scanner 32.The first light beam B1 *Enter to be projeced into behind the falt bed scanner 32 on the stationary mirror 3252 that is positioned at the first breach 3211 belows through the reflection of itself and other two stationary mirrors 3252 and be projeced on the moving reflector 3251 that is positioned at primary importance, the reflection by moving reflector 3251 makes this first light beam B1 again * Pass lens 32531 and make the first light beam B1 *Received by optics sensing element 32532, as file D *During by the first scanning area 313, file D *First surface F1 *Scanning is finished.
Next see also Fig. 5, it is second structural representation of double-faced scanning device the second preferred embodiment scanning document of the present invention.File D *By the turning circle of paper-feeding channel 316 in 322 of the first scanning area 313 and the second scanning areas, so that file D *With second F2 *State down enters the second scanning area 322.And in falt bed scanner 32, transmission mechanism 3254 moves to the second place with moving reflector 3251 by primary importance.As file D *When entering the second scanning area 322, secondary light source 324 produces the second light beam B2 *And be projeced into file D *Second F2 *On, the second light beam B2 *By file D *Second F2 *Reflection and pass glass platform 323 and the second breach 3212 is projeced on the stationary mirror 3252 that is positioned at the second breach 3212 belows, the second light beam B2 *Through a plurality of stationary mirrors 3252 and be positioned at the reflection of moving reflector 3251 of the second place and scioptics 32531 and received by optics sensing element 32532, as file D *During by the second scanning area 322, file D *Second F2 *Scanning is finished.Similarly, at file D *The duplex scanning process in, the first light beam B1 *Light path equal the second light beam B2 *Light path.At last, file D *Being transmitted roller 319 is fed to paper output box 318 and finishes duplex scanning.What need special instruction is that paper-feeding channel 316 has twice bending, and paper-feeding channel 316 can be arranged in the paper feeder housing 311 of small volume, and still can make paper-feeding channel 316 keep certain length, to carry out further the slimming of double-faced scanning device.
By above-mentioned two preferred embodiments as can be known, double-faced scanning device of the present invention only needs feed documents once just can carry out duplex scanning to file, and by being set, scanning glass sheet and the first light source in automatic paper feeder, carry out scanning work in automatic paper feeder, can be lifted at the quality of scanning that scans in the automatic paper feeder, to improve the shortcoming of existing double-faced scanning device.In addition, double-faced scanning device of the present invention changes the state of moving reflector and reflects the first light beam or the second light beam in the duplex scanning process, transmission mechanism as its power resources only need move or rotate moving reflector, and need not move whole scan module with energy savings.
The above is preferred embodiment of the present invention only, is not to limit practical range of the present invention, and therefore all other do not break away from the equivalence change of finishing under the disclosed spirit or modify, and all should be contained in protection scope of the present invention.

Claims (16)

1. a double-faced scanning device in order to read the image of a file, is characterized in that, comprises presenting the automatic paper feeder of this document and in order to scan the falt bed scanner of this document; Wherein, this automatic paper feeder comprises paper feeder housing, scanning glass sheet and the first light source, and this scanning glass sheet is positioned at the first scanning area; This first light source is positioned at a side of this first scanning area, is projeced on the first surface of this document in order to produce the first light beam; This paper feeder housing also comprises light transmission passage, this light transmission passage between this scanning glass sheet and this falt bed scanner, with so that this first light beam by entering this falt bed scanner; This falt bed scanner comprises scanner housing, glass platform, secondary light source and scan module, this scanner housing is positioned at the below of this paper feeder housing and has the first breach and the second breach, and this first breach is positioned at the below of this first scanning area, and this second breach is positioned at the below of the second scanning area; This glass platform is covered in this first breach and this second breach; This secondary light source is positioned at a side of this second scanning area, is projeced in order to produce the second light beam on second of this document; This automatic paper feeder also comprises paper-feeding channel, and with so that this document that is fed passes through, and this paper-feeding channel has the single-revolution zone by this first scanning area and this second scanning area and in the section of this first scanning area and this second sweep interval; This scan module in order to scan this document, comprises moving reflector, a plurality of stationary mirror, optical sensing module and transmission mechanism, and this moving reflector is used to this first light beam of the first angle reflection or in this second light beam of the second angle reflection; These a plurality of stationary mirrors are in order to reflect this first light beam or this second light beam; This optical sensing module is in order to receive this first light beam or this second light beam; This transmission mechanism is connected in this moving reflector, in order to change the angle of this moving reflector, makes this moving reflector be in this first angle or this second angle; Wherein the light path of this first light beam equals the light path of this second light beam.
2. double-faced scanning device as claimed in claim 1 is characterized in that, this optical sensing module comprises:
Lens are used so that this first light beam or this second light beam focus on; And
The optics sensing element is in order to receive this first light beam or this second light beam and those light beams can be converted to electronic signal.
3. double-faced scanning device as claimed in claim 2 is characterized in that, this optics sensing element is charge coupled cell.
4. double-faced scanning device as claimed in claim 1 is characterized in that, this automatic paper feeder also comprises paper pressing device, and this paper pressing device is positioned at this first scanning area, with so that this document is in flat condition.
5. double-faced scanning device as claimed in claim 4 is characterized in that, this paper pressing device is paper-pressing sheet.
6. double-faced scanning device as claimed in claim 1 is characterized in that, this paper-feeding channel by this first scanning area to the distance of this second sweep interval length more than or equal to a letter size.
7. double-faced scanning device as claimed in claim 1, it is characterized in that, this automatic paper feeder also comprises feeding box and paper output box, this feeding box is positioned at an end of this paper-feeding channel, in order to place this document that is not scanned, and this paper output box is positioned at the other end of this paper-feeding channel, is scanned this document of finishing in order to placement.
8. double-faced scanning device as claimed in claim 1 is characterized in that, this automatic paper feeder also comprises a plurality of conveying rollers, and these a plurality of conveying rollers are positioned on this paper-feeding channel, makes it mobile in this paper-feeding channel in order to present this document.
9. a double-faced scanning device in order to read the image of a file, is characterized in that, comprises presenting the automatic paper feeder of this document and in order to scan the falt bed scanner of this document; Wherein, this automatic paper feeder comprises paper feeder housing, scanning glass sheet and the first light source, and this scanning glass sheet is positioned at the first scanning area; This first light source is positioned at a side of this first scanning area, is projeced on the first surface of this document in order to produce one first light beam; This paper feeder housing also comprises light transmission passage, this light transmission passage between this scanning glass sheet and this falt bed scanner, with so that this first light beam by entering this falt bed scanner; This falt bed scanner comprises scanner housing, glass platform, secondary light source and scan module, this scanner housing is positioned at the below of this paper feeder housing and has the first breach and the second breach, and this first breach is positioned at the below of this first scanning area, and this second breach is positioned at the below of the second scanning area; This glass platform is covered in this first breach and this second breach; This secondary light source is positioned at a side of this second scanning area, is projeced in order to produce the second light beam on second of this document; This automatic paper feeder also comprises paper-feeding channel, and with so that this document that is fed passes through, and this paper-feeding channel has the single-revolution zone by this first scanning area and this second scanning area and in the section of this first scanning area and this second sweep interval; This scan module in order to scan this document, comprises moving reflector, a plurality of stationary mirror, optical sensing module and transmission mechanism, and this moving reflector is used to primary importance and reflects this first light beam or reflect this second light beam in the second place; These a plurality of stationary mirrors are in order to reflect this first light beam or this second light beam; This optical sensing module is in order to receive this first light beam or this second light beam; This transmission mechanism is connected in this moving reflector, and the position in order to mobile this moving reflector can be moved this moving reflector between this primary importance and this second place; Wherein the light path of this first light beam equals the light path of this second light beam.
10. double-faced scanning device as claimed in claim 9 is characterized in that, this optical sensing module comprises:
Lens are used so that this first light beam or this second light beam focus on; And
The optics sensing element is in order to receive this first light beam or this second light beam and those light beams can be converted to electronic signal.
11. double-faced scanning device as claimed in claim 10 is characterized in that, this optics sensing element is charge coupled cell.
12. double-faced scanning device as claimed in claim 9 is characterized in that, this automatic paper feeder also comprises paper pressing device, and this paper pressing device is positioned at this first scanning area, with so that this document is in flat condition.
13. double-faced scanning device as claimed in claim 12 is characterized in that, this paper pressing device is paper-pressing sheet.
14. double-faced scanning device as claimed in claim 9 is characterized in that, this paper-feeding channel by this first scanning area to the distance of this second sweep interval length more than or equal to a letter size.
15. double-faced scanning device as claimed in claim 9, it is characterized in that, this automatic paper feeder also comprises feeding box and paper output box, this feeding box is positioned at an end of this paper-feeding channel, in order to place this document that is not scanned, and this paper output box is positioned at the other end of this paper-feeding channel, is scanned this document of finishing in order to placement.
16. double-faced scanning device as claimed in claim 9 is characterized in that, this automatic paper feeder also comprises a plurality of conveying rollers, and these a plurality of conveying rollers are positioned on this paper-feeding channel, makes it mobile in this paper-feeding channel in order to present this document.
CN 200910170359 2009-09-11 2009-09-11 Double-sided scanning device Expired - Fee Related CN102025884B (en)

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