CN108861693A - Paper feed and image forming apparatus - Google Patents
Paper feed and image forming apparatus Download PDFInfo
- Publication number
- CN108861693A CN108861693A CN201810418626.2A CN201810418626A CN108861693A CN 108861693 A CN108861693 A CN 108861693A CN 201810418626 A CN201810418626 A CN 201810418626A CN 108861693 A CN108861693 A CN 108861693A
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- China
- Prior art keywords
- paper
- air
- float
- supplying part
- supply direction
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/0808—Suction grippers
- B65H3/0816—Suction grippers separating from the top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/14—Air blasts producing partial vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/12—Suction bands, belts, or tables moving relatively to the pile
- B65H3/124—Suction bands or belts
- B65H3/128—Suction bands or belts separating from the top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/48—Air blast acting on edges of, or under, articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/04—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to absence of articles, e.g. exhaustion of pile
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6502—Supplying of sheet copy material; Cassettes therefor
- G03G15/6511—Feeding devices for picking up or separation of copy sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/114—Side, i.e. portion parallel to the feeding / delivering direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/15—Large capacity supports arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/30—Other features of supports for sheets
- B65H2405/33—Compartmented support
- B65H2405/332—Superposed compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/10—Means using fluid made only for exhausting gaseous medium
- B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
- B65H2406/122—Nozzles
- B65H2406/1222—Nozzles adjustable impact angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/21—Angle
- B65H2511/216—Orientation, e.g. with respect to direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/10—Mass, e.g. mass flow rate; Weight; Inertia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/06—Office-type machines, e.g. photocopiers
Abstract
The present invention provides the paper feed and image forming apparatus for also capableing of steadily paper supply under conditions of paper is difficult to float.Have：Paper mounting table (511) accommodates paper with laminated arrangement；It separates air air supplying part (52), the front end side blow out air from the paper supply direction of the paper of mounting；Float air air supplying part (53,54), be configured at the two sides in direction parallel with the face of the paper loaded and orthogonal with paper supply direction, and air is blown on paper；The paper of the topmost floated is adsorbed in adsorption section (56)；Wind direction switching part (534,544) is changed to the air supply direction for floating air air supplying part from the direction of the front end side in the paper supply direction towards the paper loaded to the arbitrary direction in the direction towards rear end side；And control unit (400) controls change of the wind direction switching part to the air supply direction for floating air air supplying part according at least one of the base weight of paper and size and the float state of paper.
Description
Technical field
The present invention relates to paper feed and image forming apparatuses.
Background technique
In the past, in a kind of known image forming apparatus for forming image on paper, with laminated arrangement storage paper, and to
The air that image forming part supplies paper attracts the paper feed of mode.
The air attracts the paper feed of mode to have：Float air air supplying part, for being placed in the paper of paper mounting portion
, carrying out air-supply from paper of the two sides to top along the direction orthogonal with paper carry direction floats it；Separation air is sent
Wind portion blows from the front end side of the carry direction of the paper of topmost, make paper positioned at top side in addition to this
Paper separation；And with carrying mechanism, paper is adsorbed to carrying side from being configured at the carry strap of top of paper be laminated
To submitting.The paper and other paper are reliably separated and only adsorbing the paper of topmost using these mechanisms, energy
It is enough to pass out to paper in paper transport path a sheet by a sheet.
However, the situation of paper weight or it is big in the case where, exist by floating air and separating the floated power that air generates
Deficiency, the case where paper cannot be sent out.
For such a problem, patent document 1 discloses blows so as to float the direction that air and separation air collide, and makes
The technology that floated power improves.At this point, there is a situation where the collision due to air and cause the float state of paper unstable, so
The mechanism for attracting air from the rear end side of paper is set.
Patent document 1：Japanese Unexamined Patent Publication 2014-169182 bulletin
Under conditions of paper is difficult to float, need to blow to the air that floats of strength on paper, if using patent document 1
Documented invention then needs the collision of air to further increase, and attracts sky from rear end side with the attraction of more strength with this
Gas.
However, if attraction becomes strong, it is likely that attract paper unintentionally, so being difficult to keep the intensity of air makes gas
Stream is stablized.
Summary of the invention
The present invention is completed in view of the above subject, and its purpose is to provide also can under conditions of paper is difficult to float
The paper feed and image forming apparatus of enough steadily paper supplies.
In order to solve the above problems, paper feed described in technical solution 1 is characterized in that having：
Paper mounting portion accommodates paper with laminated arrangement；
Air air supplying part is separated, air is blown into paper from the front end side in the paper supply direction of the paper loaded；
Float air air supplying part, air is side-blown from the two of the paper end orthogonal with the paper supply direction of paper loaded
To paper；
The paper of the topmost floated is adsorbed in adsorption section；
Wind direction switching part is changed to the above-mentioned air supply direction for floating air air supplying part from the confession towards the paper loaded
The arbitrary direction in the direction of the rear end side in the paper supply direction for the paper that the direction of the front end side in paper direction is loaded to direction；With
And
Control unit is cut according at least one in the float state of the base weight of paper and size and paper to control above-mentioned wind direction
Change change of the portion to the above-mentioned air supply direction for floating air air supplying part.
Invention described in technical solution 2 is characterized in that, on the basis of the paper feed described in technical solution 1,
Have detection loaded paper float float test section,
Float test section by above-mentioned and detect in the case where floating of paper, above-mentioned control unit floats above-mentioned air and send
The air supply direction in wind portion is changed to the direction of the rear end side towards the paper supply direction of the paper loaded.
Invention described in technical solution 3 is characterized in that, on the basis of the paper feed described in technical solution 1 or 2,
Have detection loaded paper float float test section,
Do not floated test section by above-mentioned within the specified time limit from starting paper supply and detected in the case where floating of paper,
The above-mentioned air supply direction for floating air air supplying part is changed to towards before the paper supply direction of the paper loaded by above-mentioned control unit
The direction of end side.
Invention described in technical solution 4 is characterized in that, the paper feed described in any one of technical solution 1~3
On the basis of,
It is above-mentioned float air air supplying part can be to the direction parallel and orthogonal with paper supply direction with the face of the paper loaded
It is mobile.
Invention described in technical solution 5 is characterized in that, the paper feed described in any one of technical solution 1~4
On the basis of,
It is above-mentioned to float air air supplying part and blow obliquely upward to facing for paper.
Image forming apparatus described in technical solution 6 is characterized in that having：
Paper feed described in any one of technical solution 1~5；And
The image forming part of toner image is formed in paper.
It is capable of the paper supply dress of steadily paper supply in accordance with the invention it is possible to provide under conditions of paper is difficult to float
It sets and image forming apparatus.
Detailed description of the invention
Fig. 1 is the figure for indicating the outline structure of image forming apparatus.
Fig. 2 is the block diagram for indicating the principal functional structure of image forming apparatus.
Fig. 3 is the perspective view of the sheet feed section of image forming apparatus.
Fig. 4 is the side view of the local cutting of the unloading part for indicating sheet feed section, adsorption section and trucking department.
Fig. 5 is the top view for indicating the movement of wind direction switching part of sheet feed section.
Fig. 6 is the top view of the unloading part for indicating sheet feed section, adsorption section and trucking department.
Fig. 7 is the side view of the state of the paper in the paper supply movement for indicate sheet feed section.
Fig. 8 is the top view being illustrated to the air supply direction for floating air.
Fig. 9 is the flow chart for indicating the movement of image forming apparatus.
Description of symbols
50... sheet feed section；51... paper mounting table (paper mounting portion)；52... air air supplying part is separated；53,54...
Float air air supplying part；531,541... Air Blast fan；532,542... air outlet；533,543... nozzle；534,544...
Wind direction switching part (wind direction switching part)；535,545... axis (wind direction switching part)；536,546... gear mesh (wind direction switching
Portion)；537,547... motor (wind direction switching part)；55... unloading part；557... test section (floating test section) is adsorbed；
557a... detects body；557b... sensor；56... adsorption section；57... trucking department；100... image forming apparatus；
100a... image forming apparatus main body；400... control unit；500... paper feed.
Specific embodiment
Hereinafter, being illustrated using attached drawing to embodiment according to the present invention.Wherein, embodiments described below
In carried out in carrying out the present invention technically preferred various restrictions, but the scope of the present invention is not limited to implementation below
Mode and illustrated example.
[structure of image forming apparatus]
Fig. 1 is the overall structure figure of image forming apparatus 100 according to the present invention, and Fig. 2 is to indicate image forming apparatus
The block diagram of 100 functional structure.
As shown in Figure 1 and Figure 2, image forming apparatus 100 is mainly filled by image forming apparatus main body 100a, image reading
It sets SC, send original text device DF, image processing part 30, paper feed 500, control unit 400, storage unit 410 and communication unit 420 automatically
It constitutes.
Image forming apparatus main body 100a passes through by photoreceptor 1, electro-mechanical part 2, image exposure portion 3, development section 4, transfer section
5, the image forming part 10 of the compositions such as cleaning section 6, fixing section 7 and paper handling system are constituted.Paper handling system is by first
Sheet feed section 11, the second sheet feed section 12, paper feeding cassette 13, paper discharge unit 14, transport path switching part 15, circulation again sheet feed section 16 and
Paper discharge unit 17 is inverted to constitute.
Paper feed 500 is made of three sheet feed sections 50 of arranging side by side up and down.
(1) image processing part
Image processing part 30 implements various image procossings to image data, sends picture signal to image forming part 10.
It is placed in and send the original copy d on the document board of original text device DF to read it by the optical system of image read-out SC automatically
Single side or two-sided image, and it is read into CCD image sensor.Image processing part 30 is to by CCD image sensor light
After analog signal after electricity conversion carries out simulation process, A/D conversion, shade amendment, image Compression etc., to image exposure
3 image signal transmission of portion.
In addition, control unit 400 (such as personal can be counted by communication unit 420 with the external device (ED) for being connected to communication network
Calculation machine) between communicated, image processing part 30 also has the figure that will be received from the external device (ED) under the control of control unit 400
The case where being transferred to image exposure portion 3 as signal.
(2) image forming part
In image forming part 10, for photoreceptor 1, charge is applied by electro-mechanical part 2, by coming from image exposure portion 3
Laser irradiation to form electrostatic latent image, and latent electrostatic image developingization is become by toner image by development section 4.Next,
The paper P for being contained in paper feeding cassette 13 is carried from the first sheet feed section 11.Paper P by the second sheet feed section 12 for being made of registration roller with
Toner image is obtained synchronous and is handled upside down.Then, paper P is transferred after toner image by transfer section 5 and is fixed the fixing of portion 7.
In addition, remaining toner is removed by cleaning section 6 after transfer on photoreceptor 1.
In addition, being more than the paper P for being contained in paper feeding cassette 13, the paper P for being contained in paper feed 500 is also fed with figure
As forming apparatus main body 100a, toner image is transferred in paper P and is fixed.
Paper P after fixing is discharged to outside device by paper discharge unit 14.In addition, in the case of duplex printing, first
The paper P that face forms image is admitted to the circulation reversion of sheet feed section 16 again by transport path switching part 15, again in image shape
At in portion 10 the second face formed image after, be discharged to outside device by paper discharge unit 14.In the case where inverting paper discharge, from common
The paper P of paper discharge access fork is turned to after the reversion of front and back sides in reversion paper discharge unit 17, is discharged to device by paper discharge unit 14
Outside.
(3) paper feed
(A) of Fig. 3 is the perspective view for indicating the outline of sheet feed section 50 of paper feed 500.As described above, on sheet feed section 50
Under side by side three ground be set to paper feed 500, but they are made of identical structure, so here to one of paper supply
Portion 50 is illustrated.
The paper that sheet feed section 50 has the horizontal orientation for loading multiple paper P with laminated arrangement as paper mounting portion carries
Set the upstream side of platform 511, the rear for being set to paper mounting table 511 i.e. paper supply direction a rear end limiting component 512, with
And it is set to the front end limiting component 513 in the front of paper mounting table 511 i.e. the downstream side of paper supply direction a.
In addition, in following explanation in sheet feed section 50, by the horizontal direction orthogonal with paper supply direction a and towards confession
The direction of left-hand side is used as " left side " in the state of a of paper direction, by the horizontal direction orthogonal with paper supply direction a and towards paper supply
The direction of right-hand side is used as " right side " in the state of a of direction.
Paper mounting table 511 is supported to move up and down in sheet feed section 50, rear end limiting component 512 and front end
The fixation of limiting component 513 is provided in sheet feed section 50.
The height of the upper end of front end limiting component 513 is slightly below the height of the upper end of rear end limiting component 512.It is another
Aspect, paper mounting table 511 carry out lifting action by actuator (not shown), and by control unit 400 control actuator with
The regulation for maintaining the topmost for the paper P for being laminated in the paper mounting table 511 to be slightly below the upper end of front end limiting component 513 is high
Degree.In addition, paper P of the height control based on the actuator according to the detection topmost for being set to 512 side of rear end limiting component
Height sensor (not shown) sensing detection carry out.
In addition, paper mounting table 511 can be made to decline in non-paper supplies such as the supplements of paper P.
It is provided with point in the downstream side of the paper supply direction a of the front end limiting component 513 adjacent with front end limiting component 513
From air air supplying part 52.Float air air supplying part 53,54 in addition, being respectively arranged in the left and right sides of paper mounting table 511, it should
Float the inner side surface of air air supplying part 53,54 in the plane along up and down direction, the position of the left and right directions as limitation paper
The limiting component set plays a role.
It is configured to move in left-right direction by actuator (not shown) in addition, floating air air supplying part 53,54,
And actuator is controlled so that the wall surface for floating air air supplying part 53,54 becomes the end with the width direction of paper by control unit 400
The position of portion's contact.In addition, the position of the left and right directions based on the actuator is placed in paper supply according to what is stored by storage unit 410
The dimension information of the paper in portion 50 determines.
Separation air air supplying part 52 and float air air supplying part 53,54 inside be respectively arranged with Air Blast fan 521,
531,541, it is configured to from 522,532,542 blow out air of air outlet.
(B) of Fig. 3 is the major part structure figure for floating air air supplying part 54.In addition, for floating air air supplying part 53,
Since it has structure identical with air air supplying part 54 is floated, so omitting its major part structure figure.
As shown in (B) of Fig. 3, floats air air supplying part 53,54 and have from the paper P's for the topmost for being located at maximum height limit
The left and right side nozzle 533 that the inclined direction in side is blown in the horizontal direction or slightly upwardly than horizontal direction towards paper P,
543.The air outlet 532,542 of each nozzle 533,543 is formed its rising wood and is slightly below the topmost for being located at maximum height limit
Paper P.
As shown in figure 3, float air air supplying part 53,54 have respectively wind direction switching part 534,544 and axis 535,
545, gear mesh 536,546, motor 537,547.
Wind direction switching part 534,544 is configured between each air outlet 532,542 and the paper loaded, is configured to
It is enough to be rotated centered on axis 535,545.Driving force based on motor 537,547 by gear mesh 536,546 be transmitted to axis 535,
545, so that axis 535,545 rotates.It is higher than in addition, wind direction switching part 534,544 is formed its upper edge positioned at limitation
The paper P of the topmost of height.
That is, floating sky by blowing from each air outlet 532,542, and using the guidance of wind direction switching part 534,544
Gas can be such that the paper P on top rises to blow to the paper face of the paper P on the top in laminated arrangement obliquely upward.
Fig. 4 is the knot indicated around the front end of the paper supply direction a of the paper P of the topmost in paper mounting table 511
The cross-sectional view of structure.
Separation air air supplying part 52 have for from air outlet 522 towards the downstream side than paper supply direction a direction slightly to
The nozzle 523 of the direction air-supply of incline upward, by the paper supply for floating multiple paper that air air supplying part 53,54 floats to utilization
The downstream side front end of direction a is blown, and can be blowed air between the paper P and other paper floated, make in addition to
Paper other than the paper P of topmost separates and declines.
Fig. 5 shows the direction and the relationship of air supply direction of wind direction switching part 544.
Hereinafter, will in paper face with the paper supply direction direction at right angle a as left and right directions b, by wind direction switching part
The side connecting in 544 sides with axis 545 is as surfaces of revolution 544a.
For example, being stopped as shown in (A) of Fig. 5 in surfaces of revolution 544a with the angle (θ 1) for being 90 degree relative to left and right directions b
In the case where, float air and is blown out from air outlet 542 to the direction orthogonal with paper supply direction a.
In contrast, as shown in (B) of Fig. 5, in surfaces of revolution 544a with the rear end side relative to left and right directions b towards paper
Angle (θ 2) stop in the case where, towards relative to paper supply direction a be upstream side (rear end side of paper) blow out.
In addition, as shown in (C) of Fig. 5, in surfaces of revolution 544a with the angle relative to left and right directions b towards the front end side of paper
In the case where spending (θ 3) stopping, direction is downstream side (front end side of paper) blowout relative to paper supply direction a.
That is, by under the control in control unit 400 drive motor 537,547 and make wind direction switching part 534,544 rotate,
To change the air supply direction for floating air.
Fig. 6 is the top view of unloading part 55 and adsorption section 56.As shown in Fig. 3, Fig. 4, Fig. 6, in paper mounting table 511
Top is provided with unloading part 55.In addition, in order not to make the structure steganography of surrounding, which is staggered to arrow in Fig. 3
Shown in position diagram, but actually as shown in figure 4, the unloading part 55 is configured under the paper supply direction a of paper mounting table 511
Swim the top of side end.
Unloading part 55 has in four groups of bands 556, conducts for arranging in paper along the left and right directions vertical with paper supply direction a
Drive the motor 551 of the paper supply driving source of these bands 556 and the transmission gear column between each band 556 and motor 551
552。
Each band 556 has the roller 553 of the major diameter for the upstream side for being set to paper supply direction a, is set under a of paper supply direction
The band 556 swimming the roller 554,555 of two minor diameters of side and being erected on these rollers 553,554,555.Moreover, for each
The roller 553 of major diameter with mechanism assigns towards the direction that paper supply direction a advances from motor 551 to the lower part of each band 556 and turning
Square.In addition it is also possible to use sprocket wheel instead of each roller 553,554,555.
In addition, each band 556 is formed with multiple apertures of perforation front and back sides throughout its entire surface, pass through aftermentioned adsorption section 56
Attraction, paper P can be adsorbed onto the lower part of each band 556 via each aperture.
It is detected in the upstream side of the paper supply direction a of band 556 equipped with absorption of the detection for the absorption of the paper of each band 556
Portion 557.The absorption test section 557 has the biography for substantially rodlike detection the body 557a and photosensitivity type for being supported to swing
Sensor 557b.
The one end side more downward than the lower part of band 556 for detecting body 557a is prominent, examines if paper P is adsorbed on the band 556
Body 557a is surveyed to swing and one end is made to be pushed back to top.Moreover, the other end of detection body 557a becomes portion's quilt at one end
Decline when backing into top, and the configuration of sensor 557b is just blocked, sensor 557b will be by blocking caused light income
Change input control portion 400, control unit 400 is made to identify the absorption of paper P.
As shown in Fig. 3, Fig. 4, Fig. 6, adsorption section 56 has with the shape of the inside of each band 556 of one end insertion unloading part 55
The pipeline 561 and make the fan 562 for becoming negative pressure in the pipeline 561 in the other end of pipeline 561 that state configures.
The one end side of each band 556 of insertion of above-mentioned pipeline 561 is shaped generally as rectangular shape, is formed in its underpart
Opening portion 561a.Moreover, make to become negative pressure in pipeline 561 by fan 562, it is external empty thus, it is possible to be carried out from opening portion 561a
The attraction of gas.
Above-mentioned pipeline 561 is configured as lower part of its opening portion 561a across four bands 556, each band 556 and opening portion
The corresponding range of 561a is the binding domain B to paper.
Unloading part 55 and adsorption section 56 can be realized by above-mentioned structure：If the paper on the top in paper mounting table 511
It opens P to float by the above-mentioned air-supply for floating air air supplying part 53,54, then will be floated by the attraction generated in binding domain B
The paper P of the topmost risen is adsorbed onto the lower part of each band 556, and by the rotation of each band 556 driving, by paper P towards paper supply
Direction a is sent out.
As shown in figure 4, being equipped with trucking department 57 close to 55 ground of unloading part in the downstream side of paper supply direction a.The trucking department
57 have can by the paper P sent out from the lower part of band 556 be inserted into insertion guide portion 571, be set to the insertion guide portion 571
Midway clip that paper P carries to the downstream side of paper supply direction a small one and large one transport roller 572,573, as making the carrying
The motor (illustration omitted) of the driving source of the rotation driving of roller 572,573 and the front end for detecting paper P reach insertion guide portion
The note detection that the rear end of 571 and paper P passes through the sensor as optical profile type or contact of insertion guide portion 571
Portion 574.
The end that insertion guide portion 571 is formed as the upstream side of paper supply direction a is widely open up and down and its upper and lower width
With the shape that narrows towards paper supply direction a, the end of the upstream side of paper supply direction a with towards image forming apparatus main body
The transport path of the paper P of 100a is connected.
The transport roller 572 of major diameter and the transport roller 573 of minor diameter are configured as contacting with each other, and to pass through insertion guidance
The paper P in portion 571 is set to insertion guide portion 571 by the mode between transport roller 572 and the transport roller of minor diameter 573.
Using motor (not shown) as driving source, which is controlled by control unit 400 and drives the transport roller 572 of major diameter.
The transport roller 573 of minor diameter is contacted with the transport roller 572 of major diameter, so being passed opposite with the transport roller 572 of the major diameter
Torque, to be rotated jointly.
Note detection portion 574 is configured at the upstream side of its paper supply direction a close to each transport roller 572,573 ground, in the paper
Detect the presence or absence of paper P at the position of test section 574, and by testing result input control portion 400 at any time.That is, control unit 400
In the case where the state change of detecting state never paper P is to have the state of paper P, identify that the front end of paper P is arrived
Up to the position in note detection portion 574, in the case where detecting state is from state of the state change for having paper P for no paper P,
Identify that the rear end of paper P passes through the position in note detection portion 574.
In addition, the front end of paper P indicates the end in the downstream side of the paper supply direction a in paper P, the rear end of paper P
Indicate the end of the upstream side of the paper supply direction a in paper P.
(4) control unit
Control unit 400 is configured to have CPU (Central Processing Unit：Central processing unit) 401, ROM
(Read Only Memory：Read-only memory) 402, RAM (Random Access Memory：Random access memory) 403
Deng.CPU401 reads program corresponding with process content from ROM402 and is unfolded in RAM403, cooperates and collects with the program of expansion
Each module of middle control image forming apparatus 100 (image read-out SC, send original text device DF, image processing part 30, image automatically
Form apparatus main body 100a, paper feed 500 etc.) movement.At this point, referring to the various data for being stored in storage unit 410.Storage
Portion 410 is for example made of non-volatile semiconductor memory (so-called flash memory), hard disk drive.
In addition, control unit 400 have the communication control cards such as not shown LAN card composition communication unit 420, can with
It is connected to LAN (Local Area Network：Local area network), WAN (Wide Area Network：Wide area network) etc. communication networks
External device (ED) (such as personal computer) between carry out the transmitting-receivings of various data.
[paper supply control method]
The control method of the paper supply movement of each sheet feed section 50 of paper feed 500 based on control unit 400 is illustrated.
In the paper supply movement in sheet feed section 50, the air that floats by floating air air supplying part 53,54 makes the paper on top
It opens P to float, and is adsorbed in the lower part of each band 556 and passes out to 57 side of trucking department.The paper P floated can be adsorbed in band 556
Lower part, but as shown in (A) of Fig. 7, one below not only paper P of the topmost, paper P or multiple paper also can
Float.Further, as shown in (B) of Fig. 7, floated air and pushed up, and other paper of the downside of the paper P of topmost at
For the state being close to paper P.
Therefore, by blowing to the paper floated for air is separated using separation air air supplying part 52, such as (C) institute of Fig. 7
Show, the paper P for being adsorbed onto the lower part of band 556 is separated with paper in addition to this, makes the paper other than paper P because self weight is dropped
It falls.
Here, if air output is insufficient when the air-supply for floating air starts, such as shown in (D) of Fig. 7, the paper of topmost
P will not float to the lower part of each band 556, and the band 556 cannot be made to adsorb.Because the heavier paper such as ground paper is (for example, base weight exists
The paper of 300g or more) it is difficult to float, it is easy to produce the state as (D) of Fig. 7, so in such paper when floating
Need to make to float the air output when air output of air is greater than the paper supply of other paper.
It is but too strong if floating air after paper floats, it is likely that the posture of the paper such as meeting paper shaking becomes not
Stablize.
In addition, persistently blowing on paper due to floating air when separating paper, the separative efficiency for separating air is reduced.It is special
It is not in the low and soft paper of supply density as so bulk paper, the paper floated is difficult to separate, so having to adhere to
The state of the paper P of topmost and one on the downside of it or the paper of multiple passes out to trucking department 57 side, and initiation is removed again
The case where fortune.
Therefore, after paper floats, the air output of the separation air relative to the front end for blowing to paper is needed, is reduced floating
Play the air output of air.
Therefore, in the present embodiment, by control float the air supply direction for floating air of air air supplying part 53,54 come
Control air blows to the amount on paper.
Firstly, because the biggish air output for floating paper P is needed when starting paper supply, so such as (A) of Fig. 8
It is shown, it (is supplied by the preceding extreme direction for making the air supply direction for floating air for floating air air supplying part 53,54 be respectively facing paper P
The downstream side of paper direction a) so that separation air is collided with air is floated.Air after collision moves upward, so becoming
Stronger floated power for floating paper P.
At this point, wind direction switching part 534,544 is controlled as shown in (A) of Fig. 8 by rotation, air outlet 532,542
As in the direction of separation 52 side opening of air air supplying part.
Next, control unit 400 is judged as the paper of topmost if detecting the absorption of paper P by absorption test section 557
P is opened to have floated.If the air of collision is persistently blown on paper after paper P floats, then there is paper shaking etc. to upset paper posture
The case where.In addition, needing to weaken the air-supply for floating air to separate the paper P of topmost with following paper.Therefore,
As shown in (B) of Fig. 8, after paper P floats, air outlet 532,542 is from oral area towards the direction of separation 52 side of air air supplying part
To the rear end side rotation towards paper P, the air supply direction for floating air for floating air air supplying part 53,54 is made to turn to paper respectively
The rear extreme direction (upstream side of paper supply direction a) of P, to inhibit excessive floated power, and makes steady air current.
In addition, as described above, floating according to the type of paper or isolated difficulty being different, so can also basis
The type of paper floats the air supply direction of air to control.
For example, in order to ensure separation property, needing to reduce phase in the case where paper lighter as so bulk paper or thin paper
For separating the air quantity for floating air of air.In this case, from when starting paper supply, air will be floated as shown in (C) of Fig. 8
The air supply direction for floating air of air supplying part 53,54 is respectively facing the rear extreme direction (upstream side of paper supply direction a) of paper P.?
In the case where lighter paper, even floating air due to weaker and also can sufficiently float, so even if from when starting paper supply
Make the air supply direction for floating air that problem will not occur towards above-mentioned direction.At this point, wind direction switching part 534,544 passes through
Rotation is controlled as direction shown in (C) as Fig. 8.
Then, the movement of image forming apparatus 100 is illustrated using the flow chart of Fig. 9.
Firstly, control unit 400 obtains paper information (step for the paper specified by user if receiving print instruction
Rapid S901).Paper information includes the information of the base weight and size about paper.
Next, control unit 400 judges whether it is the paper (step S902) easily floated based on paper information.If being judged as
It is paper (the step S902 easily floated：It is), then step S911 is moved to, if being judged as is not paper (the step S902 easily floated：
It is no), then move to step S903.Here, in the case where base weight is less than the paper of 300g, it is judged as and easily floats.
In step S903, control unit 400 controls motor 537,547, and wind direction switching part 534,544 is made to rotate and become
Float air and blows to position as the preceding extreme direction of paper.That is, make wind direction switching part 534,544 configuration (A) of Fig. 8 this
The direction of sample.
Then, the control of control unit 400 separates air air supplying part 52 and floats air air supplying part 53,54, starts blowout point
From air and float air (step S904), judge whether to be detected paper by absorption test section 557 floats (step
S905).If control unit 400, which is judged as to be not detected, floats (step S905：It is no), then step S906 is moved to, if being judged as detection
To floating (step S905：It is), then move to step S908.
In step S906, control unit 400 determines whether to have passed through the stipulated time, if being judged as without the stipulated time
(step S906：It is no), then step S905 is moved to, if but being judged as and have passed through stipulated time (step S906：It is), then control motor
537,547 and make wind direction switching part 534,544 rotate, so as to float front end of the blow-off direction further towards paper of air
Side (step S907), and return to step S905.
In step S908, control unit 400 controls motor 537,547 and rotates wind direction switching part 534,544, so that
Float the rear extreme direction that air turns to paper.That is, acting wind direction switching part 534,544 as (B) of Fig. 8.
Then, control unit 400 judges whether it is final page (step S909), if being judged as YES final page (step S909：
It is), then finishing control, if but being judged as it is not final page (step S909：It is no), then control unit 400 controls motor 537,547,
It rotates wind direction switching part 534,544 and blows to position (step as the preceding extreme direction of paper as air is floated
S910), return step S905.
In step S911, control unit 400 controls motor 537,547, and wind direction switching part 534,544 is made to rotate and become
Float air and blows to position as the rear extreme direction of paper.That is, make wind direction switching part 534,544 configuration (C) of Fig. 8 that
The direction of sample.
Then, the control of control unit 400 separates air air supplying part 52 and floats air air supplying part 53,54, starts blowout point
From air and float air (step S912), judge whether it is final page (step S913), if being judged as YES final page (step
S913：It is), then finishing control, if but being judged as it is not final page (step S913：It is no), then the place of step S913 is repeated
Reason.
As described above, by the air supply direction for floating air according to paper type change, to be adjusted to be suitble to the floating of paper
It rises, the air quantity of separation.
As described above, image forming apparatus 100 involved in present embodiment have separation air air supplying part 52,
Float air air supplying part 53,54 and the unloading part 55 with adsorption section 56, floats air air supplying part 53,54 and also have respectively
Allow hand over its air supply direction wind direction switching part 534,544 and axis 535,545, gear mesh 536,546, motor 537,
547.Control unit 400 changes the air supply direction for floating air air supplying part 53,54 according to the base weight of paper, size, float state.
Therefore, under conditions of the big situation etc. of the situation of paper weight or paper is difficult to float, by adjusting air and separation sky is floated
The amount of gas collision, is able to carry out stable paper supply.
In addition, detecting topmost in absorption test section 557 in image forming apparatus 100 involved in present embodiment
Paper P floated in the case where, make to float the air supply direction of air air supplying part 53,54 towards the upstream side in paper supply direction.Cause
This, the rear end side for flowing to paper by making to float air after paper floats can obtain the inexcessive and stable gas of air output
Stream.
In addition, not having in absorption test section 557 in the stipulated time in image forming apparatus 100 involved in present embodiment
In the case where thering is the paper P for detecting topmost to float, make to float the air supply direction of air air supplying part 53,54 towards paper supply direction
Downstream side.Therefore, it is blown in a manner of floating air and separation air collision until paper floats, the floating of strength can be obtained
Play power.
In addition, floating air air supplying part 53,54 also as limit in image forming apparatus 100 involved in present embodiment
Component processed plays a role, and can move in left-right direction.Therefore, even if the size of paper changes, energy can be also moved to
It is enough that air is blown to the position on paper near the paper loaded.
In addition, image forming apparatus 100 involved in present embodiment has in the horizontal direction or ratio level side
The wind direction switching part 534,544 blown to the inclined direction in slightly upwardly side.Therefore, float towards the direction blowout that floats of paper
Air, so paper can be made efficiently to float.
In addition, in above-mentioned flow chart, carry out and whether be that corresponding 2 kinds of paper easily floated control, but can also be by
Air supply direction is changed according to the type of the paper such as paper width.In addition, the type of paper and wind direction switching part 534,544 are opposite
Tabular and storage unit 410 both can be stored in advance in the corresponding relationship of the angle of left and right directions b, can also by user according to
Paper type setting.
In addition, can also float the air supply direction of air according to paper width dimension modifying.
For example, larger in paper width and float air air supplying part 53 and float air air supplying part 54 each other in right and left
In the case where the position separated upwards, separation air and floats air and be difficult to collide.In this case, by cutting wind direction
Component 534,544 is changed further towards the central side of the width direction of paper, separation air is easy to produce and floats touching for air
It hits.
In addition, paper width and wind direction switching part 534,544 both may be used relative to the corresponding relationship of the angle of left and right directions b
With preparatory tabular and it is stored in storage unit 410, can also be set by user according to paper width.
[other embodiments]
More than, it is specifically illustrated based on embodiments of the present invention, but above-mentioned embodiment is of the invention
Preferred example, it is not limited to this.
For example, in the above-described embodiment, instantiate the image that paper feed is equipped on electronic photo mode forming dress
The case where setting, but the type of image forming apparatus is not limited thereto.For example, also above-mentioned paper feed 500 can be applied to
Ink jet type etc. carries out all types of image forming apparatuses of others of image formation to paper.
In addition, in the above-described embodiment, floating for paper is detected to the contact of detection body 557a by detection paper,
However, it is not limited to this.
For example, opening portion 561a is blocked, so suction pressure can change if paper adsorption is in adsorption section 56.
Thus, it is also possible to detect floating for paper by detecting the suction pressure.
Alternatively, it is also possible in the biography of the side of the left and right sides of paper mounting table 511 or any side setting reflection-type
Sensor, by detecting the reflected light generated by the paper floated, to detect floating for paper.
In addition, the detailed movement of detailed construction and each device for each device of composition image forming apparatus, also can
It is enough suitably to change without departing from the spirit and scope of the invention.
Claims (6)
1. a kind of paper feed, which is characterized in that have：
Paper mounting portion accommodates paper with laminated arrangement；
Air air supplying part is separated, air is blown on paper from the front end side in the paper supply direction of the paper loaded；
Float air air supplying part, air is blown into paper from the two sides of the paper end orthogonal with the paper supply direction of paper loaded
Zhang Shang；
The paper of the topmost floated is adsorbed in adsorption section；
The air supply direction for floating air air supplying part is changed to from the paper supply side towards the paper loaded by wind direction switching part
To front end side direction to the arbitrary direction in the direction towards the rear end side in the paper supply direction of paper loaded；And
Control unit controls the wind direction switching according at least one of the base weight of paper and size and the float state of paper
Change of the portion to the air supply direction for floating air air supplying part.
2. paper feed according to claim 1, which is characterized in that
Have detection loaded paper float float test section,
Float test section by described and detect in the case where floating of paper, the control unit floats air air supplying part for described
Air supply direction be changed to the direction of the rear end side towards the paper supply direction of paper loaded.
3. paper feed according to claim 1 or 2, which is characterized in that
Have detection loaded paper float float test section,
Do not floated test section by described within the specified time limit from starting paper supply and detected in the case where floating of paper, it is described
The air supply direction for floating air air supplying part is changed to the front end side towards the paper supply direction of the paper loaded by control unit
Direction.
4. paper feed according to any one of claims 1 to 3, which is characterized in that
It is described to float air air supplying part and be moved to direction parallel with the face of the paper loaded and orthogonal with paper supply direction
It is dynamic.
5. paper feed described according to claim 1~any one of 4, which is characterized in that
It is described to float air air supplying part and blow obliquely upward to facing for paper.
6. a kind of image forming apparatus, which is characterized in that have：
Paper feed described in any one of Claims 1 to 5；With
Image forming part forms toner image in paper.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017092728A JP7325922B2 (en) | 2017-05-09 | 2017-05-09 | Paper feeder and image forming device |
| JP2017-092728 | 2017-05-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108861693A true CN108861693A (en) | 2018-11-23 |
| CN108861693B CN108861693B (en) | 2020-03-06 |
Family
ID=64095943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810418626.2A Active CN108861693B (en) | 2017-05-09 | 2018-05-04 | Sheet feeding device and image forming apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20180327202A1 (en) |
| JP (1) | JP7325922B2 (en) |
| CN (1) | CN108861693B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792406A (en) * | 2019-04-01 | 2020-10-20 | 株式会社东芝 | Sheet feeding device and image processing apparatus |
| CN112299067A (en) * | 2019-07-26 | 2021-02-02 | 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 |
| CN112441439A (en) * | 2019-09-05 | 2021-03-05 | 柯尼卡美能达办公系统研发（无锡）有限公司 | Sheet conveying mechanism and image forming apparatus |
| CN112875354A (en) * | 2019-11-29 | 2021-06-01 | 株式会社理光 | Sheet feeding device and image forming apparatus |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018111571A (en) * | 2017-01-12 | 2018-07-19 | コニカミノルタ株式会社 | Paper feeding device and image forming apparatus |
| JP6925928B2 (en) * | 2017-10-10 | 2021-08-25 | 株式会社東芝 | Paper feed device |
| JP2019131383A (en) * | 2018-02-01 | 2019-08-08 | コニカミノルタ株式会社 | Paper feeding device, image forming device, and image forming system |
| JP7077847B2 (en) * | 2018-07-27 | 2022-05-31 | コニカミノルタ株式会社 | Paper feed device and image forming device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041924A (en) * | 1988-10-10 | 1990-05-09 | 海德堡印刷机械股份公司 | The paper loosing blaster of paper feeding machine on the rotary press |
| EP1127818A2 (en) * | 2000-02-25 | 2001-08-29 | NexPress Solutions LLC | Device for separating a top most sheet from a supply stack by means of air blowing means |
| US20040051229A1 (en) * | 2002-09-12 | 2004-03-18 | Xerox Corporation | Sheet feeding apparatus having an air fluffer |
| CN101428713A (en) * | 2007-11-09 | 2009-05-13 | 柯尼卡美能达商用科技株式会社 | Sheet feeding device and image forming apparatus |
| CN105731114A (en) * | 2016-04-20 | 2016-07-06 | 广州达意隆包装机械股份有限公司 | Paper sheet separating and discharging device |
| CN106241438A (en) * | 2016-10-18 | 2016-12-21 | 温州职业技术学院 | Flexible material based on gas suspension principle conveying and correcting unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3521639B2 (en) * | 1996-08-28 | 2004-04-19 | 富士ゼロックス株式会社 | Sheet feeding device |
| JP2010269922A (en) | 2009-05-25 | 2010-12-02 | Konica Minolta Business Technologies Inc | Paper feeder, image forming device and image forming system |
-
2017
- 2017-05-09 JP JP2017092728A patent/JP7325922B2/en active Active
-
2018
- 2018-05-04 CN CN201810418626.2A patent/CN108861693B/en active Active
- 2018-05-07 US US15/972,677 patent/US20180327202A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041924A (en) * | 1988-10-10 | 1990-05-09 | 海德堡印刷机械股份公司 | The paper loosing blaster of paper feeding machine on the rotary press |
| EP1127818A2 (en) * | 2000-02-25 | 2001-08-29 | NexPress Solutions LLC | Device for separating a top most sheet from a supply stack by means of air blowing means |
| US20040051229A1 (en) * | 2002-09-12 | 2004-03-18 | Xerox Corporation | Sheet feeding apparatus having an air fluffer |
| CN101428713A (en) * | 2007-11-09 | 2009-05-13 | 柯尼卡美能达商用科技株式会社 | Sheet feeding device and image forming apparatus |
| CN105731114A (en) * | 2016-04-20 | 2016-07-06 | 广州达意隆包装机械股份有限公司 | Paper sheet separating and discharging device |
| CN106241438A (en) * | 2016-10-18 | 2016-12-21 | 温州职业技术学院 | Flexible material based on gas suspension principle conveying and correcting unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792406A (en) * | 2019-04-01 | 2020-10-20 | 株式会社东芝 | Sheet feeding device and image processing apparatus |
| CN112299067A (en) * | 2019-07-26 | 2021-02-02 | 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 |
| CN112441439A (en) * | 2019-09-05 | 2021-03-05 | 柯尼卡美能达办公系统研发（无锡）有限公司 | Sheet conveying mechanism and image forming apparatus |
| CN112875354A (en) * | 2019-11-29 | 2021-06-01 | 株式会社理光 | Sheet feeding device and image forming apparatus |
| US11542112B2 (en) | 2019-11-29 | 2023-01-03 | Ricoh Company, Ltd. | Sheet feeding device and image forming apparatus incorporating same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108861693B (en) | 2020-03-06 |
| JP2018188272A (en) | 2018-11-29 |
| US20180327202A1 (en) | 2018-11-15 |
| JP7325922B2 (en) | 2023-08-15 |
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