CN100462294C - Paper feeder and image forming device - Google Patents
Paper feeder and image forming device Download PDFInfo
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- CN100462294C CN100462294C CNB031587097A CN03158709A CN100462294C CN 100462294 C CN100462294 C CN 100462294C CN B031587097 A CNB031587097 A CN B031587097A CN 03158709 A CN03158709 A CN 03158709A CN 100462294 C CN100462294 C CN 100462294C
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Abstract
A sheet feeder has a plurality of sheets supported on an intermediate plate, and feeds sheets separately one by one by attracting them by a suction belt. Air is blown from a blowing duct through an opening toward a side edge of a sheet bundle supported by the intermediate plate in order to handle the sheet bundle, and so as to vary the speed and/or direction of air blown from the opening to reliably handle the sheet bundle, whereby a sheet conveying operation by the suction belt is performed when the speed of air blown on the side edge of the sheet located in the uppermost position bundle is not more than a predetermine value.
Description
Technical field
The present invention relates to be separated into the sheet feeding-device of 11 supply from the paper bundle that is loaded in paper storage portion.
Background technology
In the past, in image processing systems such as duplicator and chopping machine, be confined to the common paper of high quality paper and copier manufacturer appointment usually as the continuous section of the recording medium of paper supply.The flatness on surface is low with in the paper such, and permeability to air is also low in addition, thus air flow between paper easily, so when, adsorbing each other with paper when using paper with 11 taking-up of paper from cargo-carring, many situations of supplying with together usually take place.
; in recent years; be accompanied by the variation of recording medium; except ground paper, OHP paper, tracing paper etc.; because the market demands of colorize; in order to show whiteness and gloss, the requirement that forms image on the paper that has carried out surface smoothings such as artistic paper that coating handles and coated paper on the surface of paper is also improved constantly.; flatness, the permeability to air height of these OHP paper, tracing paper, artistic paper and coated paper etc.; so when particularly under high humidity environment, having loaded paper; paper attracts to each other; in in the past duplicator and chopping machine etc. under the general friction separate mode that uses, exist and often take place many and supply with together or the wrong problems of sending.
And by from paper bundle side injection air, paper is untied, simultaneously by being configured in the suction device and the belt conveyor of top, from the paper on upper strata begin 11 separations, the air paper supply way carried is used during printing boundary and a part of duplicator.In this air paper supply way, compare with the friction separate mode, have the following advantages: 1. wide to the setting range of the supply conditions of material; 2. can be corresponding to the high speed paper supply; 3. high-durability; 4. low operating cost.
The motion related with such air paper supply has a lot, for example, open described in the clear 62-249835 communique the spy, top one side that is being loaded in the paper on the feedboard for paper has been proposed, pass through the air jet system injection air from the direction parallel with the upper surface of paper, making the aspiration column of opening above paper by depression generator simultaneously is negative pressure, the method that attracts.According to this paper feed, because sucking action from opening, the paper that is loaded in the superiors of the paper on the feedboard for paper rises, and by from the space injection air of air jet system to forming between the paper of the paper of the superiors and following one deck, carries out the separation of two paper reliably.
, as mentioned above, OHP is with flatness, the permeability to air height of paper, tracing paper, artistic paper and coated paper etc., so when particularly having loaded paper under high humidity environment, paper attraction to each other takes place.Here, when having adopted the air paper supply way, because from the air that sprays with the side of paper bundle is certain flow, so at the weak relatively interface of adsorption affinity, upper layer part with the paper bundle is floating with the state of bundle, so can't pass air in the floating space, be difficult to 11 and make it reliably to separate with the paper bundle.
Summary of the invention
The present invention proposes in view of described situation, its purpose is: have in the air paper supply way of advantage on viewpoints such as material correspondence, high speed paper supply, high-durability, provide with the separately paper attraction to each other of easy reliable in structure ground, prevent that mistake from sending the sheet feeding-device with many generations of supplying with together, and seek the miniaturization of device, the reduction of cost of product and operating cost, the raising of reliability.
The invention is characterized in and have: load the paper loading parts that plurality of sheets of paper is opened; From the paper of the superiors that are loaded in described paper loading parts, by the attraction of air, 11 the paper absorption transfer unit that absorption is carried; The side injection air of the paper bundle in being loaded in described paper loading parts is so that the floating air injection components of paper; Make the wind speed units of variance that changes from the wind speed of the air of described air injection components ejection; When make the wind speed that is ejected near the air the superiors' paper bundle become predetermined value when following by described wind speed units of variance, carry out the paper sheet delivery action of described paper absorption transfer unit.
The invention is characterized in and have: load the paper loading parts that plurality of sheets of paper is opened; From the paper of the superiors that are loaded in described paper loading parts, by the attraction of air, 11 the paper absorption transfer unit that absorption is carried; The air injection components of the side injection air of the paper bundle in being loaded in described paper loading parts; Make the wind direction units of variance that changes from the wind direction of the air of described air injection components ejection; When make near the air that is ejected into the superiors' paper bundle become predetermined value when following by described wind direction units of variance, carry out the paper sheet delivery action of described paper absorption transfer unit.
The invention is characterized in and have: load the paper loading parts that plurality of sheets of paper is opened; From the paper of the superiors that are loaded in described paper loading parts, by the attraction of air, 11 the paper absorption transfer unit that absorption is carried; The air injection components of the side injection air of the paper bundle in being loaded in described paper loading parts; Make the wind speed units of variance that changes from the wind speed of the air of described air injection components ejection; Make the wind direction units of variance that changes from the wind direction of the air of described air injection components ejection; By the synergy of described wind speed units of variance and described wind direction units of variance, make the wind speed that is ejected near the air the superiors' paper bundle become predetermined value when following, carry out the paper sheet delivery of described paper absorption transfer unit and move.
Description of drawings
Following brief description accompanying drawing.
Fig. 1 is the cutaway view of the duplicator of the explanation embodiment of the invention.
Fig. 2 is the block diagram of the chart drive assembly of the explanation embodiment of the invention.
Fig. 3 is the constructional drawing of the explanation embodiment of the invention 1.
Fig. 4 is the timing diagram of the device of embodiment 1.
Fig. 5 is the constructional drawing of the explanation embodiment of the invention 2.
Fig. 6 is the constructional drawing of the explanation embodiment of the invention 3.
Fig. 7 is the timing diagram of embodiment 3.
Fig. 8 is the constructional drawing of the explanation embodiment of the invention 4.
The specific embodiment
Below, with reference to the description of drawings embodiment of the invention 1.
(integral structure)
Fig. 1 is the cutaway view of embodiment keystone configuration of the duplicator 1 of expression performance image processing system one example of the present invention.
This duplicator 1 has the image reader 200 of the image that reads original copy, the sheet feed section 400 that is used for forming the chopping machine 300 of image on paper and is used for supplying with to chopping machine 300 paper as shown in Figure 1.On sheet feed section 400, be provided with paper disc 401 and 451 with public paper-feeding mechanism.Paper disc 401 multipotencys are deposited 1000 paper, and paper disc 405 multipotencys are deposited 1500 paper.The back will be described sheet feed section 400 in detail.
On image reader 200, be equipped with the auto document feedway 100 that is used for original copy is sent into automatically image reader 200.The original copy that auto document feedway 100 is provided with making progress on original tray 101 is from beginning page or leaf beginning 11 left conveying to figure in order, route by bending, on platen glass 102, begin to read the position through flow of information from a left side, carry to the right, discharge to exterior row's paper disc 112 then.
This original copy flows through on the platen glass 102, when reading the position by the flow of information on the platen glass 102 from left to right, reads this original image by remaining on the sweep unit 104 that reads cooresponding position, position with flow of information.This read method generally be called the original copy flow of information read method.Particularly, when original copy reads the position by flow of information, penetrate the reading face of original copy, import in the lens 108 by plane mirror 105,106,107 from the reflected light of this original copy with the illumination of the lamp 103 of sweep unit 104.Light by these lens 108 is in the imaging on the face that videotapes of mage reconstructor tube sensor 109.
Like this, by carrying original copy, make it read the position by flow of information from left to right, carrying out with the direction with the throughput direction quadrature of original copy is main scanning direction, is that the original copy of sub scanning direction reads scanning with the throughput direction.Promptly when original copy reads the position by flow of information, at main scanning direction, read original copy with mage reconstructor tube sensor 109 by each row on one side, on one side by carrying original copy at sub scanning direction, carry out the original image single-piece and read, the image that optically reads is transformed to pictorial data, output by mage reconstructor tube sensor 109.Carried out after the predetermined process at picture intelligence control part (not shown) from the pictorial data of mage reconstructor tube sensor 109 outputs, be input to the exposure control part 110 of chopping machine 300 as vision signal.
It should be noted that, also can be transported to original copy on the platen glass 102, under this state, scan from left to right, also can read original copy by making sweep unit 104 by auto document feedway 100.This read method is to be called the method that original copy fixedly reads.
When not using auto document feedway 100 to read original copy, at first auto document feedway 100 is picked up by the user, original copy is placed on the platen glass 102, by making sweep unit 104 scannings from left to right, carry out reading of original copy then.Promptly when not using auto document feedway 100 to read original copy, carry out original copy and fixedly read.
The exposure control part 110 of chopping machine 300 is according to the vision signal modulated laser of input, and output, on one side by this laser of multi-angle mirror scanning, shines on the photosensitive drums 111 on one side.Laser according to scanning on photosensitive drums 111 forms electrostatic latent image.Here, exposure control part 110 when original copy fixedly reads, is exported laser, so that form positive image (not being the image of mirror image) as described later.
Electrostatic latent image on this photosensitive drums 111 passes through the developer that never graphic developer is supplied with, and looks like to become visible image as developer.In addition, resist roller 115 begins synchronous timing with the irradiation with laser, the paper of carrying from each paper disc 401,451 in photosensitive drums 111 with duplicate 116 conveyings of portion.The developer that is formed on the photosensitive drums 111 is looked like to copy on the paper of being carried by the portion of duplicating 116.
To photographic fixing portion 117, photographic fixing portion 117 is by carrying out hot pressing to paper the paper sheet delivery of having duplicated the developer picture, developer as photographic fixing on paper.By switching not shown baffle plate, the paper by photographic fixing portion 117 through first distributing roller 118, is discharged the pallet 119 or second distributing roller 120 through first, discharge pallet 121 to second and discharge.
Below, describe the paper disc of air paper supply way of the present invention in detail.It should be noted that, in paper disc 401 and paper disc 451, just paper deposit the number difference at most, so same or cooresponding structure is adopted prosign, describe according to paper disc 401.
Fig. 2 represents the block diagram of paper disc 401 of the air paper supply way of present embodiment.Load on the middle plate 403 of the liftable paper loading parts that this paper disc 401 is provided with in depositing storehouse 402 and deposit paper bundle S.Have guide rail 404,405 (in Fig. 1 expression guide rail 404) in the both sides lower edge of depositing storehouse 402, can pull out to a positive side (operating portion one side of duplicator, in Fig. 1, the direction vertical) with paper for apparatus body 1A.Loading leaves among the paper bundle S that deposits in the storehouse 402, and its top ends is by pre-separation plate 406, and rearward end is by back end of line making sheet 412, and side end is fixedly placed in the desired location by lateral confinement making sheet 410,411.
Above the sheet transport direction of cargo-carring paper bundle S, be provided with that to attract the paper absorption transfer unit of the paper sheet delivery of the superiors with air be paper sheet delivery portion 409.This paper sheet delivery portion 409 is connected on the not shown attraction parts, has at paper Shu Shangfang to produce the suction tube 408 that attracts static pressure, in addition, surrounds suction tube 408 and has disposed the adsorption band with a plurality of holes 407 that can rotate paper supply to the paper supply direction.
And, in paper sheet delivery portion 409, paper is adsorbed onto on the adsorption band 407, by making adsorption band 407 rotations, conveyance of sheets by suction tube 408.
Below, with reference to Fig. 3, describe being used for of being provided with in the lateral confinement making sheet 410 in detail the structure and the action of injection air to the air injection components of the side injection of paper bundle S.
Fig. 3 is the cutaway view when the paper supply direction is observed Fig. 2.Here, be provided with air injection components in lateral confinement making sheet 410 inside, this air injection components comprises: 417 (the representing among Fig. 2) of injection fan of the supply source of injection air; Be connected and spray on the fan 417, be provided with an end and have towards the jet pipe 413 of the open opening 414 of the side of depositing the paper bundle S that loading is deposited in the storehouse 402.In view of the above,, eject injection air, paper is separated from opening 414 towards the side of paper bundle S.
In addition, between the side of paper bundle S and the opening 414, in nearly vertical direction, having disposed can be by the flashboard 415 of the mobile wind speed units of variance of not shown drive source (for example motor or screw actuator etc.).The part of flashboard 415 has the slit 416 of the little width of the width of ratio open 414.This flashboard 415 does not interdict the air that blows out from opening 414 when being positioned at extreme lower position, when being positioned at the extreme higher position, interdict the air that blows out from opening 414 fully.In addition, in the extreme lower position of flashboard 415 and the position between the extreme higher position, the air that blows out from opening 414 is ejected into the side of paper bundle S by the slit 416 of flashboard 415.It should be noted that, dispose when flashboard 415 is positioned at the extreme higher position, can detect the detection part Sa of its position.
Below, describe action in detail.The paper bundle S of paper supply is set in paper disc 401, if insert apparatus body 1A, then by not shown lifting motor, according to not shown paper height detection part, in plate 403 rise to predetermined altitude.Here, if press copy button, then begin the paper supply action.
At first, the attraction parts of top begin to attract action, and suction tube 408 begins to attract action, and spray fan 417 work, to the side injection air of paper bundle S.Here, flashboard 415 is driven by not shown drive source, motion up and down between the opening 414 of the side of paper bundle S and jet pipe 413.
In the early stage, flashboard 415 is positioned at extreme lower position, is the blast injection that blows out from the opening 414 integral body state (Fig. 3 (a)) to the side of paper bundle S.Then, flashboard 415 is moved upward, and meanwhile, slit 416 also moves.Here, if slit 416 is relative with opening 414, then because its stand out, the wind speed of the air by slit 416 increases.Owing to,,, better separate effect (Fig. 3 (b), Fig. 3 (c)) so can expect ratio regime flow air in the past Yi Bian spray the side of paper bundle S Yi Bian the air that wind speed strengthens is moved upward continuously by this slit 416.
When flashboard 415 arrives the extreme higher position, because flashboard 415, the opening 414 of jet pipe 413 stops up fully, so owing to injection air and floating paper bundle falls fully, has only the paper of the superiors because the attraction of suction tube 408 becomes the state (Fig. 3 (d)) that is adsorbed on the adsorption band 407.At this constantly, make its rotation, transfer out the paper of the superiors by driving adsorption band 407.
In addition, when having carried artistic paper under the high temperature and coated paper etc. easily the paper of adsorption phenomena to take place,, can make and carry out the up-and-down movement of flashboard 415 for several times as the preceding action of carrying.For example, as mentioned above, in separating the action (Fig. 3 (a) → Fig. 3 (d)) to the highest one way of flashboard 415 from minimum, when paper can't separate owing to the absorption of paper, by repeatedly coming and going (Fig. 3 (d) → Fig. 3 (a) → Fig. 3 (d)), air is flowed between the paper of paper bundle of absorption reliably, remove absorption.And, in the position shown in Fig. 3 (d), when the paper of carrying separately,, can only carry the superiors' paper that is adsorbed on the adsorption band 407 by the blocking injection air, can prevent the conveying together of the paper of inconjunction with below second reliably.
In the above description, the initial position of flashboard 415 is minimum, but be not limited thereto, and can be position arbitrarily.In addition, attracting the air supply source of parts and injecting-unit can be multi blade fan, also can use compressor.
In Fig. 4, represented the relation of the moving period of the driving timing of adsorption band 407 and flashboard 415.When flashboard 415 is positioned at the extreme higher position,, can carries out good separation and carry action if adsorption band 407 is driven.Therefore, obviously, n times (n=1,2,3 (integer)) of the driving timing by the moving period of flashboard 415 being set at adsorption band 407 can not reduce under the productive prerequisite, and the excellent sheet feedway is provided.As an example, when the duplicating number of apparatus body was 50cpm (copy-per-minute), in flashboard moving period (a) shown in Figure 4, moving velocity was 50rpm (revolution-per-minute), becomes 100rpm in (b).Can be set at optimum value to the moving velocity of this flashboard according to conditions such as materials.For example, when being the paper of easy generation absorption between paper,, can separate reliably by increasing the moving period of flashboard 415.
It should be noted that, air by slit 416 when Fig. 3 (b) and the slit 416 shown in Fig. 3 (c) and opening 414 are relative becomes maximum wind speed, in the result of test,, be best about 20m/sec though there are some skews in this maximum wind speed according to paper type.In addition, in described embodiment, shown in Fig. 3 (d), when flashboard 415 has been blocked opening 414 fully, make adsorption band 407 rotations, paper is separated conveying, but under the state that does not interdict fully, if the degree that paper does not float also can sprayed under the air state, make adsorption band 407 rotations, paper is separated carry.In the result of test, if common paper, if about (6m/sec) below 30% of maximum wind speed is just out of question, if ground paper such as coated paper, if (8m/sec) below 40% just can separate conveying out of questionly.
(embodiment 2)
Below, with reference to Fig. 5 the embodiment of the invention 2 is described.It should be noted that,, pay prosign, omitted its explanation for the structure identical with described embodiment 1 about the symbol of accompanying drawing.
In the present embodiment, be provided with jet pipe 413 in the paper bunchy top of sheet transport direction end one side.In addition, the separator tube 418 that is connected on the not shown separation fan is provided with separating nozzle 419, becomes the structure of supplying with separation of air by separating nozzle 419 towards adsorption band 407 sideling.This separation of air is adsorbed on the adsorption band the paper that only makes the superiors, and making the following separation of next paper, falling is actv..
In the present embodiment, flashboard 415 from the extreme higher position (Fig. 5 (a)) to extreme lower position (Fig. 5 (b)) back and forth movement, but be provided with the paper road P that is used for the paper downstream transport of separating between adsorption band of sheet transport direction 407 and the jet pipe 413, because can not block this paper road P, so can not flashboard 415 be moved upward up to the extreme higher position of blocking opening 414 as embodiment 1.
Therefore, the valve 420 that has the wind speed units of variance in the inside of jet pipe 413, become in jet pipe 413 and freely cover and open air, can become from opening 414 and eject the state (state of the valve 420 of Fig. 5 (a)) of injection air and the state (valve 420 states of Fig. 5 (b)) of blocking.In view of the above, in the present embodiment, the round action of the flashboard 415 by pre-determined number, by injection air from opening 414, fully separately behind the paper bundle, by not shown detection parts such as absorption sensor detect be adsorbed on the superiors' paper on the adsorption band 407 by adsorption after, by covering valve 420, blocking injection air (state of Fig. 5 (b)), concur with separation of air from separating nozzle 419, the superiors' paper is carried in paper absorption, and next is separated below the paper fully.
In the present embodiment, by carrying out the setting of the moving velocity of the flashboard 415 of description among the embodiment 2, can avoid productivity is impacted.The moving period that is flashboard 415 can freely set according to material and environmental conditions.Therefore, can provide the sheet feeding-device that has productivity and separating property simultaneously.
(embodiment 3)
Below, with reference to Fig. 6 and Fig. 7 the embodiment of the invention 3 is described.It should be noted that,, pay prosign, omitted its explanation for the structure identical with described embodiment 1, embodiment 2 about the symbol of accompanying drawing.
In the present embodiment, as shown in Figure 6 and Figure 7, when the driving of adsorption band 407 (during work), the wind speed of injection air is set in (with reference to Fig. 7 (a)) near the minimum windspeed.The wind speed of injection air can based on the power of the position of flashboard 415 or injection air supply source or both symphyogenetic any one.In view of the above, at the abundant little timing paper supply of injection air wind speed, be difficult to produce described many sheet feeding-devices of carrying together so can provide.
In addition, use the conducting/open circuited switching of injection air supply source, if when injection air is disconnection, adsorption band 407 is set at driving (on) (with reference to Fig. 7 (b)), just can be as embodiment 3, paper supply under the non-existent state of injection air has been guaranteed better separating property.It should be noted that, when be applied to duplicate number be productivity more than the 80cpm than higher sheet feeding-device in the time, because in the conducting/disconnection of injection air supply source is switched, the delay of windstream takes place, so regularly be difficult to become the state that does not have injection air fully at paper supply, but wind speed is enough little, so separating property is not had obstacle.
In addition, in described example, compare, do not have valve 420, so cheap device can be provided with embodiment 2.By similarly to Example 2, the power of injection air or conducting/open circuited cycle are set at the n doubly (n=1,2,3 (integers)) of the driving timing of adsorption band 407, the sheet feeding-device that has productivity and separating property simultaneously can be provided.
(embodiment 4)
Below, with reference to Fig. 8 the embodiment of the invention 4 is described.It should be noted that,, pay prosign, omitted its explanation for the structure identical with described embodiment 1, embodiment 2 about the symbol of accompanying drawing.
In the present embodiment, in the jet pipe 413 of paper bunchy top end one side setting, be provided with the oscillating nozzle 421 that can make the wind direction units of variance that paper bundle upper layer side end rotates at above-below direction.Oscillating nozzle 421 continuously to the side injection scheme 8 (a) of paper bundle S upwards, the downward air of Fig. 8 (b) to horizontal direction, Fig. 8 (c).This oscillating nozzle 421 is rotating up and down on one side, carry out the injection of air on one side, so the air for the paper bundle can provide wind direction to change continuously passes air into the paper of absorption or the cargo-carring paper gap each other of staggering a little up and down, makes the effect of its separation very good.
In addition, as the driving timing of adsorption band 407,, can avoid the following paper of the superiors to blow afloat, so can guarantee good separating property by unnecessary air by being the moment of Fig. 8 (b) or Fig. 8 (c).
It should be noted that in the structure of present embodiment, the on/off structure that the air by combination embodiment 2 or embodiment 3 blows out and the structure of wind speed setting power can be guaranteed better separating property.
The paper such as coated paper of the easy absorption under the high humidity environment as mentioned above, in each embodiment, can carry out the separation of paper bundle reliably, even also can separate reliably by passing air between the paper.
In the embodiment of above explanation, certainly also can each embodiment of appropriate combination.In addition, by described each embodiment, the position of jet pipe 413 and flashboard 415 if with the end of side one side of paper bundle S or the cooresponding position, end of top one side, just can be arbitrarily.
In addition, the structure of separating nozzle 419 that is used to blow out separation of air of explanation can be the combination that disengaging pawl, separating pad, reverse roll (reduction roll) wait the separate mode of other modes among the embodiment 2.
Claims (7)
1. sheet feeding-device comprises:
Load the paper loading parts that plurality of sheets of paper is opened;
From the paper of the superiors that are loaded in described paper loading parts, by the attraction of air, 11 absorption and the paper absorption transfer unit of carrying;
The side injection air of the paper bundle in being loaded in described paper loading parts is so that the floating air injection components of paper; And
Make the wind speed units of variance that changes from the wind speed of the air of described air injection components ejection;
When make the wind speed that is ejected near the air the superiors' paper bundle become predetermined value when following by described wind speed units of variance, carry out the paper sheet delivery action of described paper absorption transfer unit.
2. sheet feeding-device according to claim 1, wherein:
Described wind speed units of variance periodically changes wind speed, this wind speed period of change is set at the integral multiple of the paper sheet delivery action cycle of described paper absorption transfer unit.
3. sheet feeding-device according to claim 1, wherein:
Described wind speed units of variance is the flashboard that moves along nearly vertical direction between the side of described air injection components and paper bundle, be formed with the slit that air can pass through on the described flashboard, increase and decrease the air of supply according to the position of this slit, thereby wind speed is changed.
4. sheet feeding-device according to claim 1, wherein:
Described wind speed units of variance is by making the air supply increase and decrease from the air supply source of described air injection components, thereby wind speed is changed.
5. sheet feeding-device according to claim 1, wherein:
Described wind speed units of variance has: can freely cover and open air curtain-shaped cover member from the stream of the air of described air injection components.
6. sheet feeding-device according to claim 1, wherein:
Near the air wind speed that is ejected into the superiors' paper bundle is become under the state that closely stops, carrying out the paper sheet delivery action of described paper absorption transfer unit.
7. image processing system comprises:
Each described sheet feeding-device in the claim 1 to 6;
Form the image forming parts of image at the paper that sends out from described sheet feeding-device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002275018 | 2002-09-20 | ||
| JP275018/2002 | 2002-09-20 |
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| Publication Number | Publication Date |
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| CN1491873A CN1491873A (en) | 2004-04-28 |
| CN100462294C true CN100462294C (en) | 2009-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031587097A Expired - Fee Related CN100462294C (en) | 2002-09-20 | 2003-09-19 | Paper feeder and image forming device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050105353A (en) * | 2004-04-30 | 2005-11-04 | 삼성전자주식회사 | Paper feeding apparatus for printer having a means for preventing paper double feeding |
| JP4994900B2 (en) * | 2007-03-14 | 2012-08-08 | キヤノン株式会社 | Image forming apparatus, control method therefor, and program |
| JP5272174B2 (en) * | 2007-11-13 | 2013-08-28 | コニカミノルタ株式会社 | Paper feeding device and image forming apparatus |
| JP2012006716A (en) * | 2010-06-25 | 2012-01-12 | Fuji Xerox Co Ltd | Paper feeding device and recording material processing device |
| JP5720646B2 (en) * | 2012-09-03 | 2015-05-20 | コニカミノルタ株式会社 | Paper feeding device and image forming apparatus |
| JP6078739B2 (en) * | 2013-01-29 | 2017-02-15 | 株式会社デュプロ | Paper feeder |
| CN112278917A (en) * | 2019-07-26 | 2021-01-29 | 柯尼卡美能达办公系统研发（无锡）有限公司 | Paper feeding mechanism and image forming apparatus |
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| US4596385A (en) * | 1984-09-27 | 1986-06-24 | Xerox Corporation | Top vacuum corrugation feeder with moveable air blocking vane |
| US4887805A (en) * | 1988-03-10 | 1989-12-19 | Xerox Corporation | Top vacuum corrugation feeder |
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| US5110110A (en) * | 1988-10-10 | 1992-05-05 | Heidelberger Druckmaschinen Ag | Loosening blowers for sheet feeders of sheet-fed rotary printing presses |
| US5328165A (en) * | 1989-03-17 | 1994-07-12 | Guy Martin | Device for the take-up of plane sheets with peel-off by turbulent air flow |
| JPH06199437A (en) * | 1992-12-28 | 1994-07-19 | Canon Inc | Paper feeder and image forming device |
| US5478066A (en) * | 1992-11-02 | 1995-12-26 | Canon Kabushiki Kaisha | Sheet supply apparatus |
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2003
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4596385A (en) * | 1984-09-27 | 1986-06-24 | Xerox Corporation | Top vacuum corrugation feeder with moveable air blocking vane |
| US4887805A (en) * | 1988-03-10 | 1989-12-19 | Xerox Corporation | Top vacuum corrugation feeder |
| US5110110A (en) * | 1988-10-10 | 1992-05-05 | Heidelberger Druckmaschinen Ag | Loosening blowers for sheet feeders of sheet-fed rotary printing presses |
| US5328165A (en) * | 1989-03-17 | 1994-07-12 | Guy Martin | Device for the take-up of plane sheets with peel-off by turbulent air flow |
| US5052675A (en) * | 1990-06-21 | 1991-10-01 | Xerox Corporation | Top vacuum corrugation feeder with aerodynamic drag separation |
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| JPH06199437A (en) * | 1992-12-28 | 1994-07-19 | Canon Inc | Paper feeder and image forming device |
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| CN1491873A (en) | 2004-04-28 |
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