CN1268108C

CN1268108C - Automatic manuscript transfer device

Info

Publication number: CN1268108C
Application number: CN 02105343
Authority: CN
Inventors: 滨田政孝; 神修; 中山元昭; 桧垣明治
Original assignee: Nicecar Co Ltd Co Ltd
Current assignee: Nicecar Co Ltd Co Ltd
Priority date: 2002-02-26
Filing date: 2002-02-26
Publication date: 2006-08-02
Anticipated expiration: 2022-02-26
Also published as: CN1441591A

Abstract

The present invention relates to a transport mechanism which is composed of a driving roller which is rotatablely driven and a driven roller pressed and connected with the driving roller. A draft is transported to press plate glass for reading the draft by the transport mechanism. A cleaning mechanism is arranged and is in contact with the periphery surface of the driven roller, and dust attached to the periphery surface of the driven roller is removed along with the rotation of the driven roller. In addition, a concave part in which dust in a paper supply channel falls is formed on a paper supplying guiding mechanism near the down stream side of the transport mechanism. Thus, the following condition is prevented, a dirt object attached to the transported draft or the dirt on the paper supplying channel falls to a press plate, black stripes are generated in reading images, and the favorable reading images can be obtained.

Description

Automatic manuscript transfer device

Technical field

The present invention relates to automatic manuscript transfer device, this automatic manuscript transfer device is arranged in the image read-out of facsimile machine or digital copier etc., one by one draft is fed to the reading part of image read-out.

Background technology

Generally, draft connecting gear in the image read-out of facsimile machine or digital copier etc. adopts following so-called paper by reading mode, in this mode, fix being arranged at the reading mechanism that reads the pressing plate below, this reads pressing plate and is arranged in the way of draft drive access, with certain speed, on reading pressing plate, transmit in the draft, read the draft image.

Paper in the past is by in the draft connecting gear that reads mode, by be connected the driven roller that rotates with drive motor, with with the pair of rolls of the driven voller of this driven roller sliding contact, the clamping draft, it is transmitted, this driven roller adopts the higher soft rubber of coefficient of friction etc., so that improve the conveying function of draft.In addition, the separating mechanism that draft is separated one by one is generally following manner, wherein by with the draft sliding contact, supply with the paper feed roller of this draft, and with the separating component of this paper feed roller crimping, send a draft, stop second later draft, by paper feed roller and separating component, with the difference of the coefficient of friction of draft, with its separation.Most cases, this paper feed roller also adopt the higher soft elastomeric material of coefficient of friction.

Passing through soft elastomeric material, when forming this driven roller or paper feed roller, because draft and driven voller or separating component sliding contact, so produce the chip of roller.The part of this chip directly is attached to and transmits on the draft, drops to be attached to and reads on the pressing plate, and a part is attached on the side face with the driven voller of driven roller sliding contact and piles up, and is attached on the draft that is transmitted, and is carried to and reads on the pressing plate.Therefore, this is to cause the reason that produces stain or blackstreak in reading images.

Particularly, because driven voller and driven roller, or draft sliding contact and rotating, so not only adhere to the chip of driven roller, and adhere to China ink, the toner of the paper powder of draft or draft, the dusts such as blacklead of pencil, they are attached to transmit draft and be carried to and read on the pressing plate, have caused reading images that bigger blackstreak is arranged.

In addition, the dust of paper powder that the chip of above-mentioned roller or draft is held on is produced when transmitting between the roller etc. tumbles in the paper supply path, is piled up on the pressing plate.This situation also is to cause the reason of the blackstreak of reading images.

In order to solve such problem, the past is dust removing component (brush) to be pressed against transmit on the draft face, removes the roller chip or the dirt that are attached on the draft face.

But, in such scheme, because the draft face sliding contact of powder removing component (brush) and paper, so the generation following problems promptly produces new paper powder, and owing to the blacklead of the China ink of draft, toner, pencil etc., draft can be made dirty.

Summary of the invention

For this reason, the object of the present invention is to provide a kind of automatic manuscript transfer device, this automatic manuscript transfer device prevents following situation, promptly be attached to the dirt on the draft that is transmitted, or the dust in the paper supply path drops on the pressing plate, in reading images, produce blackstreak etc., can obtain good reading images.

The present invention relates to following proposal, wherein above-mentioned connecting gear is by the driven roller of realizing that rotation drives, and form with the driven voller of this driven roller crimping, this connecting gear is sent to draft that to be used for contact that draft is read on glass, and cleaning mechanism is set, this cleaning mechanism contacts with the outer peripheral face of above-mentioned driven voller, follows the rotation of above-mentioned driven voller, and the dust that is attached on the outer peripheral face of this driven voller is removed.

In addition, near the part of the paper supply guiding mechanism the downstream of connecting gear, form recess, this recess is used to make the dust in the paper supply path to drop in it.

Because such scheme, the present invention prevents following situation, and this situation refers to be attached to the dust on the draft that is sent on the pressing plate, or the dust in the supply passageway drops on the pressing plate, on reading images, produces blackstreak etc.

Description of drawings

Fig. 1 is the cutaway view that is equipped on the automatic manuscript transfer device of image read-out of the present invention;

Fig. 2 is the amplification view of automatic manuscript transfer device shown in Figure 1;

Fig. 3 is the major part key diagram of automatic manuscript transfer device shown in Figure 1;

Fig. 4 is the drive transmission systems of the paper feeding motor M1 of expression automatic manuscript transfer device shown in Figure 1;

Fig. 5 is the drive transmission systems of the paper feeding motor M2 of expression automatic manuscript transfer device shown in Figure 1;

Fig. 6 (a)～Fig. 6 (e) represents the delivery status of draft of the single face pattern of automatic manuscript transfer device shown in Figure 1 in a schematic way;

Fig. 7 (a)～Fig. 7 (f) represents the delivery status of draft of the duplexmode of automatic manuscript transfer device shown in Figure 1 in a schematic way;

Fig. 8 represents another embodiment of the present invention (1);

Fig. 9 represents another embodiment of the present invention (2).

Embodiment

Below with reference to the accompanying drawings, the present invention is specifically described.Fig. 1 is of the present invention for expression, is equipped on the figure of the automatic manuscript transfer device on the image read-out, and Fig. 2 is the figure of the major part of this automatic manuscript transfer device of expression.

In Fig. 1, label 10 expressions are equipped on the automatic manuscript transfer device on the image read-out main body 1, and the mode that this automatic manuscript transfer device 10 passes through according to contact glass 2 end faces from apparatus main body 1 transmits draft.This apparatus main body 1 is by contact glass 2, and to the draft that transmits, irradiation is from the light of the light source 3 of lamp etc., and its reverberation is by speculum 4 reflections, and the reading mechanism by CCD etc. carries out opto-electronic conversion to it, reads the draft image.Promptly contact the reading part of the top constituent apparatus main body 1 of glass 2.In addition, apparatus main body 1 comprises contact glass 5, this contact glass 5 has the area of the thicker draft that can place such as things such as books etc., realize opening and closing automatic manuscript transfer device 10, on the draft that is positioned on contact glass 5 end faces, the light source mechanism that is formed by light source 3 or speculum 4 etc. is moved along sub scanning direction, thus, can read the image of draft by contact glass 5.

Automatic manuscript transfer device 10 comprises sheet feed stacker 15, and this sheet feed stacker 15 can be placed many drafts; Feed portion 11, this feed portion 11 one by one separate the draft on the sheet feed stacker 15, with it towards contact glass 2 feeds; Transport unit 12, this transport unit 12 make draft pass through along contact glass 2 end faces; Discharge portion 13, this discharge portion 13 is admitted the draft that passes through from contact glass 2 end faces, with its discharge; Row's paper disc 16, these row's paper disc 16 admittances have been discharged from this discharge portion 13, the draft of reading images.In addition, this automatic manuscript transfer device 10 comprises the portion of going back to 14, and this goes back to portion 14 in discharge portion 13, will go back to from the draft that contact glass 2 end faces are discharged, and it is sent into feed portion 11 once more, is fed to contact glass 2 end faces.Here, draft dish 15 is according to a certain degree angle tilt, and the mode in the top belay space of row's paper disc 16 is provided with.

The draft that is arranged on the sheet feed stacker 15 is limited by the side guiding 17 that limits its sidepiece, and its front end is by retainer 60 restrictions.In addition, sheet feed stacker 15 is a fulcrum with the front 15a of the draft placed, rotatably installs.

Sheet feed section 11 is made of following part, and this part comprises liftable extraction roller 18, and this is extracted roller 18 out and descends, and contact the extraction draft with the end face of draft on the sheet feed stacker 15; Paper feed roller 19, this paper feed roller 19 are supplied with by extracting the draft that roller 18 is extracted out out; By the separating mechanism that separating pad 20 forms, this separating pad 20 only makes a uppermost draft pass through, and stops the supply of second later draft; The mortgage roller is to 21, and it is run into by separating mechanism, is separated into the front end of one draft, with its alignment, then it is sent to the downstream, and this sheet feed section is supplied with draft along paper supply path 25 thus.

Transport unit 12 comprises a pair of transfer roller 22, and this feeds to contact glass 2 to the upstream side of transfer roller 22 at contact glass 2 with draft; A pair of transfer roller 23, this to transfer roller 23 in the downstream, from the contact glass 2, discharge draft, along drive access 26, transmit above-mentioned draft, this drive access 26 is formed by the contact glass 2 of main body 1 side and the auxiliary guide 26a of rising guide 6 and automatic manuscript transfer device 10 sides.

Arrange paper portion 13 and go back to the part that portion 14 has row's paper disc 16 sides jointly, be provided with draft is arranged to the exit roller of arranging paper disc 16 24.This exit roller will be described below to 24, this exit roller is to 24 controls in the following manner, this mode is: when duplexmode, clamping the rear end side of draft, along oppositely making its rotation, draft is gone back to, it is sent to sheet feed section 13, exit roller forms in the following manner to 24 in addition, this mode is: row's paper driven voller 24b and row's paper driven roller 24a leave, thereby from going back to portion 14, when stagger in the front and back end of the draft that circulates by sheet feed section 13 and transport unit 14, can there be obstacle ground to transmit.

In addition, at row's paper portion 13 and the common ground that goes back to portion 14, the baffle plate 29 that draft is sent to sheet feed section 13 is set.This baffle plate 29 forms according to the form mode, this mode is: at ordinary times, it passes through the bias spring (not shown) towards inferior offset, with draft along row's paper path 27, be sent to exit roller to 24 o'clock, allow passing through of the draft lifted upward from the front end of the draft of discharging, be located at the below when to 24 draft being gone back to by exit roller, to arrange paper path 27 and stop up, and draft will be sent to go back to path 28.

Row's paper path 27 is formed by guide 27b under guide 27a on row's paper and the row's paper, guide 27a is provided with in the extension mode and contacts the auxiliary guide 26a that glass 2 is oppositely arranged on this row's paper, guide 27b is by 16 one-tenth monolithic moldings of resin and row's paper disc under this row's paper, this goes back to path 28 and forms in the following manner, this mode is: by the going back to that be provided with continuously with the draft of baffle plate 29 guiding inner face guide 28b and go back to guide 28a down, draft is sent to mortgages roller to 21 bite.Promptly go back to path 28 and paper supply path 25 according to the mode that 21 bite converges being formed, converge the position, be provided with in the extension mode draft is incorporated into the mylar 28c of mortgage roller to 21 bite at this at the mortgage roller.

As shown in Figure 3, under paper supply on the guide 25b, be right after after stopping driven roller 21a, be provided with receptacle (recess) 30, this receptacle 30 is used to make the dirts such as chip of the paper powder of draft or roller to drop in it, in addition, be right after the contact glass 2 that is arranged at drive access 26 near the transmission of oneself side under the back of transmission driven voller 22b of guide 26b, also be provided with the receptacle (recess) 31 that the dirt that is used to make the paper powder of draft or the chip of roller etc. drops.The receptacle that is arranged in each guide prevents to produce from now on following situation, and this situation refers at roller clamping draft, the paper powder of the draft that is produced when it is transmitted, or the chip of roller drops on the paper supply path, by draft, is carried on the contact glass 2.

Stop driven voller 21b and transmit driven voller 22b, form, stop on driven voller 21b and the transmission driven voller 22b, first plate 32 of the corresponding roller side face of cleaning is set at this by resin material in most occasions, and second plate 33.This first plate 32 is provided with in the following manner, and the one end is fixed on the opposing face of the draft transmission plane of guide 25a on the paper supply, and its other end contacts with the side face that stops driven voller 21b.In addition, second plate 33 is provided with in the following manner, and this mode is: the one end is fixed on a part of 10b of appliance cover, and the front end of its other end contacts with the side face that transmits driven voller 22b.

First plate 32, in second plate 33 any one is provided with in the following manner, this mode is: from stop driven voller 21b and transmit the opposite direction of direction of rotation of driven voller 22b, it contacts with the side face that transmits driven voller 22b with stopping driven voller 21b, thus, can scrape the dirt that is attached on the side face that stops driven voller 21b and transmit driven voller 22b.In addition, such cleaning mechanism not only is arranged on the driven voller, but also can be arranged on the side face that stops driven roller 21a and transmission driven roller 22a.

Each

plate

32,33 prevents following situation by to stopping driven voller 21b and transmitting driven voller 22b and clean, and the dirt on the side face that this situation refers to stop driven voller 21b and transmit driven voller 22b is attached on the draft, is carried on the contact glass 2.Particularly described below, because according to state at the clamping draft, it is retracted to the mode of the roller (transfer roller is to 22) in downstream, this mortgage roller is controlled 21 driving, so prevent because of the amount of adhering to dirt more, dirt is carried on the contact glass 2, and the dirt that is attached on the roller can not made the draft face dirty.

In addition,

plate

32,33 is formed by flexible membrane element, so that its front end can not take place because location tolerance etc. and the not contacted situation of roller side face.

In the above-described embodiments, the side face that stops driven voller 21b and transmit driven voller 22b is cleaned by plate (elastic membrane parts), but also can be provided with as shown in Figure 8 brush 40 or rotating brush 41 shown in Figure 9 so that replace this plate.

Also have, in the above-described embodiments, mode according to contacting with the side face that stops driven voller 21b and transmission driven voller 22b is described cleaning mechanism of the present invention, still, obviously, the present invention also comprises following proposal, promptly according to the material of the scheme of feed mechanism or the roller that adopted etc., according to the mode that stops that driven roller 21a contacts with the side face that transmits driven roller 22a, be arranged on not shown, this cleaning mechanism.

Below according to Fig. 4 and Fig. 5, the drive scheme of each roller is described.In addition, automatic manuscript transfer device 10 is according to the paper feeding motor M1 by can forward and reverse running and transmit motor M2, the mode that drives each roller forms, and Fig. 5 represents the drive transmission systems of paper feeding motor M1, and Fig. 6 (a)～Fig. 6 (e) expression transmits the drive transmission systems of motor M2.

At first, in the drive transmission systems of paper feeding motor M1, as shown in Figure 4, the just commentaries on classics of paper feeding motor M1 drives by synchronous belt T16 and is transmitted to drive pulley P 36 by drive pulley P 16, the driving of drive pulley P 36 according to gear Z17, gear Z19, be installed on the sequence delivery of the gear Z18 on the driving shaft of paper feed roller 19, paper feed roller 19 is along the direction rotation of supplying with drafts.On the driving shaft of paper feed roller 19, be provided with drive pulley P 18, also by open be located at it with the drive pulley P 11 that is arranged on the axle of extracting roller 18 out between synchronous belt T2, driving is passed to extraction roller 18.In addition, supporting is extracted out on the distolateral driving shaft that is installed on paper feed roller 19 of lifting arm 18a of roller 18, follow the rotation (the just commentaries on classics of paper feeding motor M1 drives) of the paper supply direction of this driving shaft, the lifting arm rotation is extracted roller 18 out and is descended, and extracts roller out and contacts with draft, at this moment, by spring clutch A, the relative lifting arm 18a of the effect of spring clutch B, the driving shaft of paper feed roller 19 is in idling conditions.At this moment, stop that driven roller 21a connects by synchronous belt T3, this synchronous belt T3 opens and is located at the drive pulley P 28 that is located on its driving shaft, with with the drive pulley P 22 of drive pulley P 36 coaxial settings on, but, under the effect of its one-way clutch OW1 in being arranged at drive pulley P 28, do not rotate.

The reverse drive of paper feeding motor M1 is from drive pulley P 16, by synchronous belt T16, pass to drive pulley P 36 from drive pulley P 16, from with the drive pulley P 22 of drive pulley P 36 coaxial settings, by synchronous belt T3, pass to the drive pulley P 28 that is installed on the axle that stops driven roller 21a, make to stop that driven roller 21a rotates along the paper supply direction.At this moment, also to the driving shaft of paper feed roller 19, transmit the reverse drive of paper feeding motor M1, by in the counterclockwise direction, make lifting arm 18a rotation, make and extract the roller rising out, still, paper feed roller 19 does not rotate under the effect that is arranged at its inner one-way clutch WO2.The lifting arm that has risen contacts with the limiting part (not shown), because of the effect of spring clutch C, and relative lifting arm 18a, the driving shaft of paper feed roller 19 is in idling conditions.

Then, as shown in Figure 5, the drive transmission systems that transmits motor M2 is from being arranged at the drive pulley P 26 on its driving shaft, by synchronous belt T4, actuating force is passed to drive pulley P 46, from the drive pulley P 42 of drive pulley P 46 coaxial settings, by synchronous belt T5, actuating force is passed to the drive pulley P 48 on the axle of the row of being installed on paper driven roller 24a, make paper supply driven roller 24a realize being rotated in the forward, or reverse rotation.In addition, by synchronous belt T4, pass to drive pulley P 46 transmission motor M2 driving from the drive pulley P 33 of drive pulley P 46 coaxial settings, by synchronous belt T6, pass to the drive pulley P 31, the P32 that are installed on the axle that transmits driven roller 22a, 23a respectively, make and transmit driven roller 22a, 23a rotation.

In addition, be provided with as making the crimping solenoid SOL of exit roller 24 drive sources that leave.This crimping solenoid SOL forms in the following manner, this mode is: by this crimping solenoid SOL is carried out excitation (ON), its row of making paper driven voller 24b, move to and arrange paper driven roller 24a pressure position contacting, by removing above-mentioned excitation (OFF), under the effect of the bias spring that the direction of leaving along the row of making paper driven voller 24b and row's paper driven roller 24a is setovered, the row of making paper driven voller 24b moves to and arranges the position that paper driven roller 24a leaves.

As shown in Figure 1,, be provided with a plurality of transducer S1, S2, S3, follow the ON-OFF state of these a plurality of transducer S1, S2, S3, detect the length that is positioned over the draft on the draft dish in the draft dish 15 upper edge draft direction of the supply.In addition, by the amount of movement of following guide 17, the potentiometer (not shown) that output changes, detection be positioned on the sheet feed stacker 15 the Width of draft, according to the testing result of this draft width,, judge the draft size with a plurality of transducer S1, the detected draft length of S2, S3.

In addition, in the path that draft is led, be respectively arranged with and detect draft and be positioned over unloaded transducer S4 on the sheet feed stacker 15, the block sensor S5 of the end of the draft that detection is supplied with on paper supply path 25, be arranged at contact glass 2 near oneself side, detect the front end sensors S6 of the end of draft, detection is from the discharge transducer S7 of the end of the draft of contact glass 2 discharges.

Each transducer S1～S7 is connected with the CPU that the driving of installing integral body is controlled, and according to the detection signal from each transducer, drives above-mentioned each motor M1, M2, and SOL carries out excitation to the crimping solenoid.

Below the draft of the automatic manuscript transfer device that formed by said structure being transmitted control action specifically describes.In addition, as required, with reference to representing that Fig. 6 (a) of the delivery status of draft is to Fig. 6 (e)～Fig. 9 in a schematic way.

At first, the single face pattern that the single face of draft is read is described, if unloaded transducer S4 is in the ON state, promptly detects draft and has been positioned on the sheet feed stacker 15, and then forward drive paper feeding motor M1 supplies with first draft D1.At this moment, make and extract roller 18 and paper feed roller 19 out along the rotation of draft direction of transfer, still, the mortgage roller does not rotate 21 under the effect of one-way clutch OW1.

Then, if block sensor S5 detects the front end of the draft of feed,, after the stipulated time, temporarily stop paper feeding motor M1 then from this detection.When paper feeding motor M1 stopped, the front end of draft contacted with mortgaging the clamping part of roller to 21, forms bend, with the front end alignment of draft, eliminate bias (with reference to Fig. 6 (a)).

After this paper feeding motor M1 temporarily stops, making paper feeding motor M1 reverse drive, and drive transmission motor M2, then, SOL carries out excitation to the crimping solenoid.At this moment, extract roller 18 out and rise to the position of leaving with draft,, interrupt the driving of paper feed roller 19 by the effect of one-way clutch OW2, along the draft direction of transfer, make the mortgage roller to 21 stop driven roller 21a rotation.

Rotation by above-mentioned motor M1, M2 drives, and with draft D1, is sent to drive access 26 from paper supply path 25, detect the passing through of front end of draft D1 at front end sensors S6 after, through the stipulated time, supply motor M1 is stopped, transmitting motor M2 and temporarily stop (with reference to Fig. 6 (b)).Then, if receive from image read-out main body 1 read the transmission signal, then drive once more and transmit motor M2.By reading mechanism, subscan is carried out in the outside (single face) of draft D1 handle, it is read.At this moment, make to stop up on the front end of the retainer 29 that the mode of row's paper path 27 is provided with and lift, draft D1 is sent on row's paper disc 16 according to its front end.

After sending draft D1, if passing through of the rear end of block sensor S5 detection draft D1 then confirmed on sheet feed stacker 15, whether has next draft, the occasion that on sheet feed stacker 15, has draft, according to first mode that draft D1 is identical, the supply action of second draft D2 of beginning.

When second draft D2 supplies with, identical with the occasion of last draft, by the forward drive of paper feeding motor M1, extract roller 18, paper feed roller 19 rotations out, make draft D2 and mortgage the bite of roller and contact eliminate bias (with reference to Fig. 6 (c)) 21.Then, make paper feeding motor M1 reverse drive, detect the front end of next draft,, make paper feeding motor M1 stop to drive, transmit motor M2 and also stop through after the stipulated time from front end sensors S6.Here, the front position of draft D2 is in the state near oneself side that stops at contact glass, in addition, the rear end side of first draft D1 by exit roller to 24 clampings, thereby it stops (with reference to Fig. 6 (d)).

Then, if receive from image read-out main body 1 read the transmission signal, then drive once more and transmit motor M2.By above-mentioned reading mechanism, subscan is carried out in the outside of draft D2 handle, it is read.Reading in the process of second draft D2, first draft D1 is discharged to (with reference to Fig. 6 (e)) on the paper disc 16.

Pass through if block sensor S5 detects the rear end of draft D2, confirm then whether unloaded transducer S4 detects the existence of next draft, identical in the occasion that exists with second draft D2, begin the supply action of the 3rd draft D3.Afterwards, as long as unloaded transducer S4 detects the existence of draft, to draft D4, D5 ..., carry out same processing.

In addition,, detect the rear end of last draft,, stop to transmit the driving of motor M2, remove the excitation of crimping solenoid SOL, all processing of drafts end through being discharged on the paper disc 16 after the needed time from discharging transducer S7 for last draft.

Below the duplexmode that reads the draft two sides is described.If detect on sheet feed stacker 15 by unloaded transducer S4, be placed with draft, then for first draft D1, identical with the single face pattern, forward drive by paper feeding motor M1, make and extract roller 18 out, paper feed roller 19 rotations, draft is contacted 21 bite with the mortgage roller, eliminate bias, detect the front end of the draft D1 that reverse drive and the forward drive that transmits motor M2 by paper feeding motor M1 transmit at front end sensors S6 after, make paper feeding motor M1, transmit motor M2 and stop temporarily, draft D1 is in the state that its front position stops in the side near oneself that contacts glass 2.At this moment, SOL carries out excitation to the crimping solenoid, makes exit roller realize crimping (with reference to Fig. 7 (a)) to 24.

In addition, read the transmission signal if receive from image read-out main body 1, then by transmitting motor M2 along forward drive, the outside of draft is transmitted on contact glass 2, pass through reading mechanism, it is carried out subscan handle, it is read, the draft D1 that will carry out reading processing on contact glass 2 is sent to row's paper path 27.

To will arrange on the front end of the baffle plate 29 that mode that paper path 27 stops up is provided with according to its front end and lift, and the draft D1 in the row of the being sent to paper path 27 will be sent to arrange on the paper disc 16.In this delivery status, if detect the rear end of draft D1 from grate paper-arranaging sensor S7 after,, the driving that transmits motor M2 is stopped through the needed time of position by baffle plate 29, by the rear end side of exit roller to 24 clamping draft D1, this draft D1 stops (with reference to Fig. 7 (b)).

After this, transmit motor M2 along reverse drive.Thus, row's paper driven roller 24a reverse drive goes back to draft D1, follows passing through of draft, and the draft spigot surface along the baffle plate 29 that moves to the position that row's paper path 27 is stopped up by going back to path 28, leads to this draft.By block sensor S5, detect front end by the draft D1 that goes back to path 28 guiding, then,, form bend mortgaging the clamping part of roller to 21, eliminate bias through after the stipulated time, stops the transmission motor M2 of reverse drive (with reference to Fig. 7 (c)).

In addition, reverse drive paper feeding motor M1 is so that supply with draft D1 once more.Reverse drive by paper feeding motor M1, stop that driven roller 21a rotates along the paper supply direction, through really the front end of draft D1 being clamped in the mortgage roller after the time on to 21, remove the excitation of crimping solenoid SOL, the row of making paper driven voller 24b moves downwards, itself and row's paper driven roller 24a are left, and forward drive transmits motor M2.

Along paper supply path 25, make draft counter-rotating, supply with this draft, if front end sensors S6 detects its front end, then transmit motor M2 at the appointed time after, stop, and stop paper feeding motor M1.Then, according to from image read-out main body 1 read the transmission signal, drive once more and transmit motor M2, by reading mechanism the inner face of draft D1 is carried out subscan and handles, it is read.At this moment, the front of draft D1 on the row's of being sent to paper disc 16 is comprising the row paper path 27 and the common portion that go back to path 28 of exit roller to 24 with the rear end side of the draft D1 that supplies with once more, realization is staggered, but, do not transmit (with reference to Fig. 7 (d)) so can there be the ground of obstruction because exit roller is in the state that leaves to 24.

After this, when block sensor S5 detects the rear end of draft D1, SOL carries out excitation to the crimping solenoid, make exit roller realize crimping to 24, if detect the rear end of draft D1 from grate paper-arranaging sensor S7 after, pass through the 29 needed times of baffle plate through the rear end of draft, the driving that then transmits motor M2 stops, the rear end side of draft D1 to 24 clampings, makes this draft D1 stop (with reference to Fig. 7 (e)) by exit roller.

Then, for draft D1, for it being discharged on the paper disc 16 in the mode of aliging according to the order of page or leaf, reverse drive transmits motor M2, by going back to path 28, the front end that makes draft D1 and mortgage roller contact eliminate bias to 21 clamping part, reverse drive by paper feeding motor M1, along paper supply path 25, make its counter-rotating, it is transmitted, the front-end detection of draft D1 by front end sensors S6 stops the driving of paper feeding motor M1.

In addition, forward drive transmits motor M2, removes the excitation of crimping solenoid SOL, draft D1 is sent on the contact glass 2, but here, owing to draft D1 is not read scanning, so its do not stop at contact glass 2 near oneself side, and in the row's of being sent to paper path 27.

In the process in this draft D1 being sent to row's paper path 27, if block sensor S5 detects the rear end of draft D1, then crimping solenoid SOL is carried out excitation, with exit roller 24 crimping, having or not of the draft of affirmation sheet feed stacker 15, in occasion with next draft D2, identical with first draft D1, begin second draft D2 and supply with action.The step of the supply control of second draft D2 is identical with the occasion of first draft D1, forward drive by paper feeding motor M1, extract roller 18, paper feeding motor 19 rotations out, make draft D2 and mortgage the bite of roller and contact eliminate bias (with reference to Fig. 7 (f)) 21.In addition, reverse drive paper feeding motor M1 along paper supply path 25, transmits draft D2, in the process that reads second draft D2, first draft D1 is discharged on the paper disc 16.

Afterwards, second draft D2 handles by the controlled step identical with first draft D1, as long as unloaded transducer S4 detects the existence of draft, then to draft D3, D4 ..., carry out identical processing.

In addition, for last draft, behind the rear end of discharging the last draft of transducer S7 detection, process is discharged to paper disc after 16 needed times, the driving that stops to transmit motor M2, and the excitation of releasing crimping solenoid SOL finishes whole drafts and handles.

As mentioned above, because in the present embodiment, be provided with plate, the roller side face contact that this plate is right with each roller that is arranged at the upstream side that contacts glass, along the direction relative with the direction of rotation of roller, the mode that the front end of plate is contacted with the roller side face is provided with this plate, scrapes the dirt on the side face that is attached to roller, the dirt that prevents to be attached on the side face of roller is attached on the draft, thereby is carried on the contact glass 2.Thus, do not contact the blackstreak that dirt on glass causes, can obtain preferable image.

In addition,, be provided with recess owing to be right after at the rear portion of roller of the upstream side of contact glass, the paper powder of draft, or the dirt of the chip of roller etc. can drop outside the paper supply path from this recess, so dirt do not tumble contact on glass.

In addition,, be provided with this recess owing to be right after back at each roller, thus can be herein, will be right by roller, the paper powder that is produced when transmitting with sliding type, or the chip of roller etc. is removed to outside the guide.

Claims

1. automatic manuscript transfer device, this automatic manuscript transfer device comprises the sheet feed stacker of placing draft; Separate paper-feeding mechanism, this separates paper-feeding mechanism the draft on this sheet feed stacker is separated, and supplies with this draft; Connecting gear, this connecting gear will transmit towards the draft reading part from the draft of above-mentioned separation paper-feeding mechanism; Paper supply path, this paper supply path from above-mentioned sheet feed stacker, are sent to above-mentioned draft reading part with draft, it is characterized in that:

Above-mentioned connecting gear is by the driven roller of realizing that rotation drives, and form with the driven voller of this driven roller crimping, be provided with the cleaning mechanism that contacts with the outer peripheral face of above-mentioned driven voller, this cleaning mechanism is followed the rotation of above-mentioned driven voller, and the dust that is attached on the outer peripheral face of this driven voller is removed.

2. automatic manuscript transfer device according to claim 1 is characterized in that the front end of above-mentioned cleaning mechanism has tabular elastomeric element, the outer peripheral face sliding contact of this tabular elastomeric element and this driven voller.

3. automatic manuscript transfer device according to claim 1 is characterized in that the brush portion part of above-mentioned cleaning mechanism for contacting with the side face of this driven voller.

4. automatic manuscript transfer device according to claim 1 is characterized in that the revolving part of above-mentioned cleaning mechanism for the brush shape, and this revolving part contacts with the side face of above-mentioned driven voller.

5. automatic manuscript transfer device according to claim 1 is characterized in that the downstream at above-mentioned connecting gear, and it is right to be provided with transfer roller, and this transfer roller receives draft to from connecting gear, and draft is sent to above-mentioned draft reading part; Controlling organization, this controlling organization stops the driving of above-mentioned connecting gear after the front of above-mentioned transfer roller to the clamping draft.

6. automatic manuscript transfer device according to claim 1, it is characterized in that above-mentioned paper-feeding mechanism forms by extracting roller, paper feed roller and separating component out, this draft of extracting the top on roller and the above-mentioned sheet feed stacker out contacts, extract this draft out, this paper feed roller is supplied with and is extracted the draft that roller is extracted out out by this, this separating component and this paper feed roller are realized crimping, stop passing through of draft, above-mentioned paper supply path is formed by the paper supply guiding mechanism, this paper supply guiding mechanism makes the interior outside counter-rotating from the draft on the above-mentioned sheet feed stacker, and it is sent to above-mentioned reading part.

7. automatic manuscript transfer device according to claim 6 is characterized in that near the part of the paper supply guiding mechanism the downstream of above-mentioned connecting gear, forms recess, and this recess is used to make the dust in the above-mentioned paper supply path to drop in it.

8. automatic manuscript transfer device according to claim 7, it is characterized in that forming conveyer, this conveyer is arranged between above-mentioned connecting gear and the above-mentioned reading part, draft is transported to above-mentioned draft reading part, near the part of the paper supply guiding mechanism the downstream of this conveyer is formed for making drop notch part in it of dust in the above-mentioned paper supply path.

9. automatic manuscript transfer device according to claim 8, it is characterized in that above-mentioned paper supply guiding mechanism is formed with the outside guiding parts that is arranged at the outside of above-mentioned paper supply path by the inboard guiding parts of the inboard that is arranged at the paper supply path, on this inboard guiding parts, form above-mentioned recess, on this outside guiding parts, form above-mentioned notch part.