CN1495035A - Paper pickup device for imaging equipment - Google Patents
Paper pickup device for imaging equipment Download PDFInfo
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- CN1495035A CN1495035A CNA031648118A CN03164811A CN1495035A CN 1495035 A CN1495035 A CN 1495035A CN A031648118 A CNA031648118 A CN A031648118A CN 03164811 A CN03164811 A CN 03164811A CN 1495035 A CN1495035 A CN 1495035A
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- Prior art keywords
- paper
- pick
- roller
- connector
- pickup device
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- 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
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0684—Rollers or like rotary separators on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile
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- 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
- B65H3/56—Elements, e.g. scrapers, fingers, needles, brushes, acting on separated article or on edge of the pile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/42—Piling, depiling, handling piles
- B65H2301/423—Depiling; Separating articles from a pile
- B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
- B65H2301/42324—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from top of the pile
- B65H2301/423245—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from top of the pile the pile lying on a stationary support, i.e. the separator moving according to the decreasing height of the pile
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- 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
- B65H2405/113—Front, i.e. portion adjacent to the feeding / delivering side
- B65H2405/1136—Front, i.e. portion adjacent to the feeding / delivering side inclined, i.e. forming an angle different from 90 with the bottom
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- 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
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- 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
- B65H2511/40—Identification
-
- 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
- B65H2515/81—Rigidity; Stiffness; Elasticity
Abstract
A paper pick-up device of an image forming apparatus has a rack member disposed on a pickup bracket supporting a pickup roller to pick-up a paper sheet, and a pinion engaged with rack member. The pickup bracket reciprocally moves with according to the paper characteristics set by a printing command, so that the pickup roller moves to one position among at least two positions which are pre-set in accordance with the paper characteristics and picks-up the paper sheet. Accordingly, since the paper pick-up device prevents slip, multiple-transferring, and paper jam from occurring, the paper sheet is accurately picked-up and transferred.
Description
Technical field
The present invention relates to a kind of device of picking up and transmitting paper in the paper feeding box that is stacked in imaging device, this imaging device such as printer, copying machines and similar devices, and relate in particular to a kind of paper pickup device, its type and characteristic according to paper is picked up paper by the position that changes paper pick-up roller.
Background technology
Usually, imaging device such as laser printer or copying machines has a paper feeding box, this paper feeding box is installed in the main body of this imaging device movably, to stack many paper therein, and this imaging device has paper pickup device, continuously paper picked up and be sent to the imaging engine unit from the pile of paper feeding box.
As shown in Figure 1, the paper pickup device of traditional imaging device comprises a paper feeding box 3, wherein stack many paper 1 and have by the frictional resistance plate 2 of front end of predetermined angle incline with contact paper 1, and this imaging device also comprises a paper pick-up roller 5, this paper pick-up roller 5 is rotatably supported by the free end that picks up paper carrier 4, so that pick up and transmit paper 1.Be provided with a transmission mechanism 6 in picking up paper carrier 4, the driving force of self-driven source (not shown) reaches this paper pick-up roller 5 in the future.
Be used for this paper pickup device of common imaging device, because paper feeding box 3 is installed in the main body of imaging device, and stack many paper within it, the paper pick-up roller 5 that therefore is arranged on the paper feeding box contacts with one 1 of the top of stacked paper in the paper feeding box 3 as shown in Figure 1.In printing process, when drive source is driven by the controller (not shown), and when by transmission mechanism 6 drive source drives power being reached paper pick-up roller 5, paper pick-up roller 5 rotates and produce friction thus between paper pick-up roller and paper, thereby picks up a piece of paper topmost.Because paper can many be picked up in the existence of frictional resistance plate 2.
But, have the paper pickup device that is used for common imaging device of said structure, paper pick-up roller 5 contacts with paper 1 at the fixing distance X places of distance frictional resistance plate 2, no matter and the characteristic of paper such as thickness, how are surface roughness and intensity.Therefore, when printing the more weak thin paper of common intensity, the multiple transmission of plurality of sheets of paper can take place once to pick up.Utilizing under the common high-intensity ground paper situation, using under the situation of thin paper owing to holding paper appears in the paper of picking up incorrect number.
In addition, in order to pick up ground paper under the situation that holding paper does not take place, the moment of torsion of CD-ROM drive motor has to continue to improve, thereby causes the problem of energy consumption and increase noise.
Summary of the invention
The object of the invention is to solve the problems referred to above in the background technology.Therefore, one aspect of the present invention provides a kind of paper pickup device of imaging device, it can pick up the paper position by change according to the characteristic of the paper of print command setting such as thickness, intensity etc. and pick up paper, and the paper with respect to every type provides the stable paper that picks up thus.
Another aspect of the present invention provides a kind of paper pickup device of imaging device, it can according to paper thickness and/or intensity by the appropriate change paper pick-up roller pick up the paper position, and paper strength is picked up in control consistently, cuts down the consumption of energy thus and noise.
Above-mentioned and/or others realize by the paper pickup device that a kind of imaging device is provided, this paper pickup device comprises: the paper feeding box of plurality of sheets of paper, this paper feeding box has the frictional resistance plate of front end that tilts at a predetermined angle with the contact paper, and this frictional resistance plate separates more than on paper; Paper pick-up roller, uppermost paper rotates in contact in this paper pick-up roller and the paper feeding box, and uppermost paper is transmitted to the frictional resistance plate; Pick up paper carrier, it supports paper pick-up roller rotationally, and has transmission mechanism rotary driving force is reached this paper pick-up roller; And picking up paper change in location unit, it moves to paper pick-up roller according to predefined two positions of picking up in the paper position of the characteristic of paper at least.
Two are picked up the paper position and comprise the first ten paper positions and the second ten paper positions, in the first ten paper positions, distance between frictional resistance plate and the paper pick-up roller is made as L1, make paper pick-up roller pick up manila paper, in the second ten paper positions, this distance is set at the L2 littler than L1, makes paper pick-up roller can pick up low intensive paper.
This picks up paper change in location unit and comprises a revolving part, and it is connected by one and picks up on the paper carrier, and rotates around this axle, and revolving part has: a pair of paper pick-up roller that is arranged on its end rotationally; Driver element, this unit drives this revolving part rotatably, so that paper pick-up roller is moved between the first and second ten paper positions; And a control module, it surveys the characteristic of paper, and according to the Characteristics Control driver element of the paper that is detected.
This driver element comprises: a pair of first connector, and each first connector all has first end that is connected with the revolving part both sides; A pair of second connector, each second connector all has first end that connects second end of each first connector by pin, and second end of this first connector is relative with first end of first connector; Be fixed to the axle on second end of second connector, described second end is relative with first end of second connector; The 3rd connector, it has first end on the axle that is fixed between second connector, second end; And drive source, it is connected on second end of the 3rd connector, and this second end is relative with first end of the 3rd connector, so that the motion of the first, the second and the 3rd connector that links.
In one embodiment of this invention, be replaced into the first and second right connectors with the first independent connector and second connector respectively.
In one embodiment of this invention, drive source is a solenoid.
According to a further aspect in the invention, the paper pickup device of imaging device comprises: the paper feeding box of many paper, paper feeding box have a frictional resistance plate, and this plate predetermined oblique angle is to contact with the front end of paper, and this frictional resistance plate separates more than on paper; Uppermost paper rotates in contact in the paper pick-up roller, itself and paper feeding box, thereby uppermost paper is transmitted to the frictional resistance plate; Pick up the paper frame frame, it is arranged in the paper feeding box; Pick up paper carrier, it is arranged on the ten paper frame framves movably, at the one end paper pick-up roller is set rotatably, and side is provided with transmission mechanism within it, so that rotary driving force is reached paper pick-up roller; And picking up paper change in location unit, this unit moves to paper pick-up roller according to predefined two positions of picking up in the paper position of the characteristic of paper at least.
Two are picked up the paper position and comprise the first ten paper positions and the second ten paper positions, in the first ten paper positions, distance between frictional resistance plate and the paper pick-up roller is made as L1, so that paper pick-up roller is picked up high-intensity paper, and in the second ten paper positions, this distance is made as the L2 littler than L1, so that paper pick-up roller is picked up low intensive paper.
Picking up paper change in location unit comprises: one transmits framework, and it reciprocally is installed on the ten paper frame framves, transmits the stiff end that frame supported is picked up paper carrier; Gear unit, it makes and transmits the framework linear reciprocal movement; And control module, it surveys the characteristic of paper, and according to the Characteristics Control delivery unit of the paper that is detected.
A pair of guide post is protruding from the both sides of transmitting framework, and a pair of gathering sill is limited in the ten paper frame framves, and to admit guide post right, guiding transmits moving of framework on the paper frame frame picking up thus.
And conveyer comprises: be arranged on the rack elements that transmits in the framework; Pinion with the rack elements engagement; And be arranged on the interior drive source of ten paper frame framves, be used for driving pinion rotationally.
The present invention adds and/or other aspect and advantage part in explanation subsequently proposes, on the one hand can be clear by this description, maybe can from implement the present invention, know.
Description of drawings
These and/or other advantage of the present invention description of preferred embodiments in conjunction with the drawings will become clear and be more readily understood.
Fig. 1 is the side view of the paper pickup device of traditional imaging device;
Fig. 2 and Fig. 3 illustrate the perspective schematic view of the paper pickup device of imaging device according to an embodiment of the invention;
Fig. 4 is the calcspar that illustrates according to paper pickup device of the present invention;
Fig. 5 illustrates the side view of paper pickup device according to the preferred embodiment of the invention, so that its course of work to be described;
Fig. 6 illustrates the imaging device perspective view of employing according to another embodiment of the present invention paper pickup device;
Fig. 7 illustrates the paper pickup device perspective view of imaging device according to another embodiment of the present invention;
Fig. 8 illustrates the side view of paper pickup device according to another embodiment of the present invention, so that its course of work to be described; And
Fig. 9 is the perspective diagram that picks up paper carrier that the paper pickup device that is used for imaging device according to another embodiment of the present invention is shown.
The specific embodiment
Introduce the preferred embodiments of the present invention now in detail, with reference to description of drawings embodiment, wherein identical Reference numeral is represented components identical all the time.Embodiment of the invention will be described with reference to drawings in order to explain the present invention below.
With reference to Fig. 2 to 5, comprise according to the paper pickup device of the imaging device of the embodiment of the invention: paper feeding box 10, paper pick-up roller 20 picks up paper carrier 30 and picks up paper change in location unit 40.
This paper feeding box 10 has therein the space that limits, can stacked plurality of sheets of paper in this space, and have a frictional resistance plate 11, and this plate front end of predetermined angle that tilt with the contact paper.This frictional resistance plate 11 separates more than on the paper of being carried by paper pick-up roller 20.
Uppermost paper rotates in contact in this paper pick-up roller 20 and the paper feeding box 10, thereby uppermost paper is transmitted to frictional resistance plate 11.
Pick up paper carrier 30 and rotatably support paper pick-up roller 20, and comprise transmission mechanism 31, being sent to paper pick-up roller from picking up paper drive source (not shown) ground rotary driving force.
This picks up paper change in location unit 40 paper pick-up roller is moved at least two positions of picking up in the paper position, these two are picked up the paper position and preestablish according to the characteristic that is stacked in the paper in the paper feeding box 10, this paper property is such as being thickness and intensity, be thus suitable for the characteristic of paper and change paper pick-up roller 20 pick up the paper position.
Fig. 5 illustrates two and picks up the paper position, i.e. the first ten paper positions and the second ten paper positions, in the first ten paper positions, distance between frictional resistance plate 11 and the paper pick-up roller 20 is made as L1, so that paper pick-up roller 20 is picked up high-intensity ground paper, and in the second ten paper positions, this distance is made as the L2 littler than L1, so that paper pick-up roller is picked up low intensive thin paper.Although this embodiment only illustrates the first ten paper positions and the second ten paper positions, paper pick-up roller 20 is not limited in this respect according to moving changeably betwixt such as the characteristic of the thickness of paper and intensity, can set and more pick up the paper position.
The paper change in location unit 40 that picks up according to the present invention comprises a revolving part 50, one driver elements 60 and a control module 70.
This revolving part 50 is arranged at and picks up paper carrier 30 places, to forward predetermined angle to around axle 51.This paper pick-up roller axle 52 passes this revolving part 50 and is included.Two paper pick-up rollers 20 are installed on the both sides of this paper pick-up roller axle 52.
This driver element 60 rotatably drives this revolving part 50, so that paper pick-up roller 20 moves between first and second positions.Driver element 60 comprises: a pair of first connector 61, and 61A, each all has first end that is connected with revolving part 50 both sides and extends back from revolving part 50; A pair of second connector 63,63A, each all has by pin 62,62A and each first connector 61, first end that second end of 61A is connected, this second end is relative with first end of first connector; The 3rd connector 65, it has first end that is fixed on the axle 64, and axle 64 is fixed to second connector 63, and on second end of 63A, this second end is relative with first end of second connector; And drive source 66, it is connected on the other end of the 3rd connector 65, ordering about connector 61, and 61A, 63,63A and 65 interlock.
In another embodiment, be replaced into the first and second right connectors with the first independent connector and second connector respectively.
In the above-described embodiment, drive source 66 is described to a solenoid (as shown in Figure 2).But this should not be considered to a kind of limiting structure.For example, drive source 66 can be electromagnet.Framework (not shown) back shaft 64.
As shown in Figure 4, control module 70 is surveyed the characteristic that is stacked in the paper feeding box 10, and based on the information control drive source of surveying 66.According to one embodiment of the invention, the paper pickup device of imaging device comprises a sensor 80, is stacked in the characteristic of the paper in the paper feeding box 10 with detection, as thickness and intensity.The signal that control module 70 receives from sensor 80 is determined the characteristic of paper based on the signal that receives, thereby controls the driving of drive source 66 according to determined paper property.
Simultaneously, as shown in Figure 5, be arranged at the transmission mechanism 31 that picks up in the paper carrier 30 and be made of a plurality of gears, they are placed at one side for rotating driveshaft 33, on the other hand between the paper pick-up roller axle 52 that passes revolving part 50 settings.This rotating driveshaft 33 passes in a relative side with the position of revolving part 50 and picks up paper carrier 30.And, pick up paper gear 32 and be installed on the rotating driveshaft 33.Therefore, the driving force of picking up the generation of paper drive source (not shown) reaches rotating driveshaft 33 by picking up paper gear 32, then reaches paper pick-up roller axle 52 by transmission mechanism 31, thereby rotates paper pick-up roller 20.
With reference to Fig. 4, when the user imported print command, according to embodiments of the invention, the paper pickup device of imaging device passed through the characteristic that sensor 80 is surveyed paper stacked in the paper feeding boxes 10, and the paper property information of being surveyed is reached control module 70.Control module 70 picks up the paper position based on the paper property information that detects, by what determine paper pick-up roller 20 with reference to the information that stores in advance and the paper property information that detected.Simultaneously, do not have in imaging device under the situation of sensor 80, imaging device can be designed to the user when importing print command, and the type of paper is set on a printer driver.Paper property information is sent to control module 70, so and control module 70 determine paper pick-up rollers 20 pick up the paper position.
To describe the operation of picking up the paper position of determining paper pick-up roller 20 according to paper property below in detail.
Under the situation of the common common paper of weak strength, shown in Fig. 2 and 5, drive along as shown in Figure 2 the directions of arrow as controlled unit 70 controls of the solenoid of drive source 66.By solenoidal driving, the 3rd connector 65 rotates in the counterclockwise direction around axle 64, and second connector 63,63A and the 3rd connector 65 rotate in the counterclockwise direction around axle 64 explicitly.So, first connector 61 that links to each other with second connector 63,63A, 61A advances along the direction opposite with the direction of arrow among Fig. 2.Because first connector 61,61A moves, and revolving part 50 rotates in the counterclockwise direction around axle 51, thereby is positioned at the second ten paper positions by the paper pick-up roller 20 of these revolving part 50 supports, is L2 in this position apart from the distance of frictional resistance plate 11.As mentioned above, when paper pick-up roller 20 is positioned at the second ten paper positions when dwindling the gap between frictional resistance plate 11 and the paper pick-up roller, the paper strength on the unit yardage improves.Therefore, the same big when picking up ground paper of the resistance at frictional resistance plate 11 places.So this paper is picked up, and can multiplely not transmit.
Simultaneously, under the situation of high strength paper,, be driven along as shown in Figure 3 the direction of arrow as the solenoid of drive source 66 as Fig. 3 and shown in Figure 5.Afterwards, the 3rd connector 65 rotates along clockwise direction around axle 64, and second connector 63,63A and the 3rd connector 65 rotate along clockwise direction around axle 64 explicitly.So, be connected to second connector 63, first connector 61 on the 63A, 61A retreats.Because first connector 61,61A moves, and revolving part 50 rotates along clockwise direction around axle 51, thereby is positioned at the first ten paper positions by the paper pick-up roller 20 of these revolving part 50 supports, and this position is L1 apart from the distance of frictional resistance plate 11.As mentioned above, when paper pick-up roller 20 is positioned at the first ten paper positions when having widened gap between frictional resistance plate 11 and the paper pick-up roller thus, the paper strength of unit length reduces.Like this, the resistance at frictional resistance plate 11 places obtain when picking up thin paper the same big.That is to say that ground paper can be picked up with the paper driving force of picking up of same degree.
When suitably determine according to the thickness of paper and intensity paper pick-up roller 20 pick up the paper position time, driving force reaches paper pick-up roller 20 from picking up paper drive source (not shown) by picking up paper gear 32, rotating driveshaft 33 and transmission mechanism 31, rotates paper pick-up roller 20 thus.Then, because the frictional force between rotation paper pick-up roller and the paper, uppermost paper is picked up, and is sent to frictional resistance plate 11, and this paper is separated by frictional resistance plate 11 and following a piece of paper.
In another embodiment of the present invention, the second and the 3rd connector be combined into is an independent feature (not shown), and this feature is rotated around a central point when drive source 66 is driven.
Fig. 6 and Fig. 9 are the views that imaging device paper pickup device according to another preferred embodiment of the invention is shown.With reference to accompanying drawing, the paper pickup device of imaging device according to another embodiment of the present invention comprises a paper feeding box 100, one paper pick-up roller 200, one ten paper frame framves, 300, one ten paper carriers 400 and 10 paper change in location unit 500.
This paper feeding box 100 has a space that wherein limits, and can stackedly be permitted plurality of sheets of paper 1 in this space, and have frictional resistance plate 110, and the angle that this plate tilts to be scheduled to is with the front end of contact paper 1.This frictional resistance plate 110 will be separated by more than on the paper that paper pick-up roller 200 is carried.
This paper feeding box 100 is installed in the box mounting portion 610 that provides in the imaging equipment body 600 movably.
In paper pick-up roller 200 and the paper feeding box 100 the top a piece of paper 1 of stacked paper rotate in contact, and with uppermost paper to 110 transmission of frictional resistance plate.
Paper pick-up roller 200 is arranged on an end that picks up paper carrier 400 rotationally.Pick up paper carrier 400 and be provided with a transmission mechanism 420, as shown in Figure 8, so that the driving force on first CD-ROM drive motor 410 is reached paper pick-up roller 200.
Picking up paper carrier 400 is arranged on this movably and picks up on the paper frame frame 300.
Pick up paper change in location unit 500 and move this and pick up paper carrier 400, so that this paper pick-up roller 200 is positioned at according on predetermined two of picking up in the paper position of paper property at least.
Two are picked up the paper position and comprise the first ten paper positions and the second ten paper positions, in the first ten paper positions, distance between frictional resistance plate 110 and the paper pick-up roller 200 is made as L1, so that paper pick-up roller 200 is picked up high-intensity ground paper, and in the second ten paper positions, this distance is made as the L2 less than L1, so that paper pick-up roller 200 is picked up low intensive thin paper.
Pick up paper change in location unit 500 and comprise that one transmits framework 510, one gear units 520 and a control module 70 (as shown in Figure 4).
Transmit framework 510 supports and pick up the stiff end of paper carrier 400, and can reciprocally be arranged on the ten paper frame framves 300.
A pair of guide post 511,512 is protruding from the both sides of transmitting framework 510, and a pair of gathering sill 311,312 is limited in the ten paper frame framves 300 to admit this to guide post 511,512, and guiding transmits the mobile of framework 510 during picking up paper frame frame 300 thus.First guide post 511 connects two stiff ends that pick up paper carrier 400 and transmit framework 510.Thereby pick up paper carrier 400 and go to predetermined angle around first guide post 51, and thus, one of the top that is arranged in the paper stacked in the paper pick-up roller 200 that picks up on paper carrier 400 1 ends and the paper feeding box 100 contacts.
Delivery unit 520 can make gear frame 510 move back and forth in picking up paper frame frame 300.This delivery unit comprises the rack elements 521 that is arranged on the transmission framework 510, with the pinion 522 of rack elements 521 engagements, and is arranged on the ten paper frame framves 300 so that drive second CD-ROM drive motor 523 of this pinion 522 rotationally.
The working method of this control module 70 is same as the previously described embodiments.That is to say that control module 70 is surveyed paper property and controlled the driving of second CD-ROM drive motor 523 of this delivery unit 520 based on the paper property information of being surveyed.As described in above-mentioned embodiment, the paper pickup device of imaging device comprises a sensor 80, it surveys the characteristic of paper according to paper type, as thickness and intensity, the signal that control module 70 receives from sensor 80, determine the characteristic of paper according to paper type, thereby according to this second CD-ROM drive motor 523 of determined Characteristics Control.
Below, the operation of the paper pickup device that is used for imaging device is according to another embodiment of the present invention described with reference to Fig. 4,8 and 9.
The basic operation mode is same as the previously described embodiments.
That is to say, when input during print command, sensor 80 survey in the paper feeding boxes 100 the characteristic of stacked paper, and this information reached control module 70.Control module 70 picks up the paper position based on what the paper property information that is detected was determined paper pick-up roller 200, and controls second CD-ROM drive motor 523 then, so that paper pick-up roller 200 moves to the predetermined paper position of picking up.
That is to say that under low intensive thin paper situation, second CD-ROM drive motor 523 is driven in rotation along clockwise direction, so that paper pick-up roller 200 is picked up paper at the second ten paper position L2.Afterwards, transmit framework 510 and move to the left side of figure, correspondingly move, thereby make paper pick-up roller 200 be positioned at the second ten paper positions and be connected the paper carrier 400 that picks up that transmits on the framework 510 by pinion 522 and rack elements 521.On this position, the driving force of first CD-ROM drive motor 410 reaches this paper pick-up roller 200 by this transmission mechanism 420, so that paper pick-up roller 200 rotates.Because the rotation of paper pick-up roller 200 produces a frictional force between paper pick-up roller 200 and paper, and because this frictional force, uppermost paper is picked up and is passed to frictional resistance plate 110.As mentioned above, when paper pick-up roller 200 be positioned at the second ten paper positions and dwindle thus between frictional resistance plate 110 and the paper pick-up roller apart from the time, the unit length strength of paper increases.So, because in the frictional force that has produced on the frictional resistance plate 110 as the resistance that when ground paper is picked up, produces, so paper can be picked up under situation about seldom retransmitting.
Simultaneously, under the situation of ground paper, second CD-ROM drive motor 523 is by rotation driving in the counterclockwise direction, thereby this paper pick-up roller 200 is picked up paper at primary importance L1.Then pick up the right-hand side that paper carrier 400 moves to figure, this situation with thin paper is opposite, and paper pick-up roller 200 just changes to the first ten paper position L1 from the second ten paper position L2 like this.As mentioned above, when paper pick-up roller 200 be positioned at the first ten paper positions and widen thus between frictional resistance plate 110 and the paper pick-up roller apart from the time, the intensity of paper reduces on the unit length.Like this, because on frictional resistance plate 110, produce resistance identical when picking up thin paper, so can be with picking up ground paper with the power of the same degree of picking up thin paper.
According to aforesaid the present invention, the paper pickup device of this imaging device can as paper thickness and intensity, pick up the paper position by change and pick up paper, thereby avoid the slip of paper in the paper feeding process according to the characteristic of paper, send and holding paper more.Therefore, it has the advantage that can accurately pick up paper and transfer operation.
In addition, control ten paper power changeably owing to pick up the paper position according to the characteristic of paper by change, energy consumption and noise are lowered.
Although illustrated and illustrated several embodiments of the present invention, those skilled in the art can change these embodiment under the prerequisite that does not deviate from scope of the present invention and marrow, and scope of the present invention limits in claims and equivalent thereof.
Claims (35)
1. the paper pickup device of an imaging device comprises:
The paper feeding box of plurality of sheets of paper, this paper feeding box has the frictional resistance plate, and this frictional resistance plate predetermined oblique angle is separated more than on paper to contact with the front end of paper;
Uppermost paper rotates in contact in the paper pick-up roller, itself and paper feeding box, and uppermost paper is passed to the frictional resistance plate;
Pick up paper carrier, it rotatably supports this paper pick-up roller, and has transmission mechanism, driving force is reached this paper pick-up roller; And
Pick up paper change in location unit, it moves to paper pick-up roller according on predefined two positions of picking up in the paper position of the characteristic of paper at least.
2. paper pickup device as claimed in claim 1, wherein, at least two are picked up the paper position and comprise:
The first ten paper positions, in this position, the distance between frictional resistance plate and the paper pick-up roller is made as first distance, so that paper pick-up roller is picked up manila paper, and
The second ten paper positions, in this position, described distance is set at the second distance less than first distance, so that paper pick-up roller is picked up low intensive paper.
3. paper pickup device as claimed in claim 2, wherein, pick up paper change in location unit and comprise:
Revolving part, it is connected to by axle and picks up on the paper carrier, and to rotate around this axle, revolving part has the paper pick-up roller that is arranged on rotationally on the one end;
Driver element, it rotatably drives this revolving part, paper pick-up roller is picked up between the paper position at least two move;
Control module, it surveys the characteristic of paper, and according to the paper property control driver element that is detected.
4. paper pickup device as claimed in claim 3, wherein, driver element comprises:
A pair of first connector, each all has first end that is connected with the both sides of revolving part;
A pair of second connector, each all has first end that connects second end of first connector by pin, and second end of described first connector is relative with first end of first connector;
Axle, it is fixed on second end of second connector, and described second end is relative with first end of second connector;
The 3rd connector, its have between second end that is fixed to second connector the axle on first end;
Drive source, it is connected to second end of the 3rd connector, and this second end is relative with first end of the 3rd connector, with the first, the second and the 3rd connector that links.
5. paper pickup device as claimed in claim 3, wherein, driver element comprises:
First connector, its first end with revolving part one side connects;
Second connector, it has first end that connects second end of first connector by pin, and described second end is relative with first end of first connector;
Axle, it is fixed on second end of second connector, and described second end is relative with first end of second connector;
The 3rd connector, it has first end on the axle that is fixed between second connector, second end;
Drive source, it is connected on second end of the 3rd connector, and described second end is relative with first end of the 3rd connector, with the first, the second and the 3rd connector that links.
6. paper pickup device as claimed in claim 4, wherein, this drive source is a solenoid.
7. the paper pickup device of an imaging device comprises:
The paper feeding box of many paper, this paper feeding box has the frictional resistance plate, and this frictional resistance plate predetermined oblique angle is separated more than on paper to contact with the front end of paper;
Uppermost paper rotates in contact in the paper pick-up roller, itself and paper feeding box, thereby uppermost paper is passed to the frictional resistance plate;
Pick up the paper frame frame, it is arranged in this paper feeding box;
Pick up paper carrier, it is arranged on the ten paper frame framves movably, at the one end paper pick-up roller is set rotatably, and side within it is provided with a transmission mechanism, rotary driving force is reached this paper pick-up roller; With
Pick up paper change in location unit, it moves to paper pick-up roller according on predefined two positions of picking up in the paper position of paper property at least.
8. paper pickup device as claimed in claim 7, wherein, two are picked up the paper position and comprise:
The first ten paper positions, in this position, the distance between frictional resistance plate and the paper pick-up roller is made as first distance, so that paper pick-up roller is picked up high-intensity paper; And
The second ten paper positions, in this position, described distance is made as second distance, so that paper pick-up roller is picked up low intensive paper.
9. paper pickup device as claimed in claim 7, wherein, pick up paper change in location unit and comprise:
Transmit framework, it can reciprocally be arranged on the stiff end that picks up paper carrier on the ten paper frame framves with support;
Gear unit, it makes and transmits the framework linear reciprocal movement;
Control module, it is surveyed paper property and controls delivery unit based on the paper property of being surveyed.
10. paper pickup device as claimed in claim 9, wherein, a pair of guide post is protruding from the both sides of transmitting framework; And a pair of gathering sill is limited in the ten paper frame framves holding this to guide post, thereby guiding transmits moving of framework in picking up the paper frame frame.
11. paper pickup device as claimed in claim 9, wherein, delivery unit comprises:
Be arranged on the rack elements that transmits in the framework;
Pinion with this rack elements engagement; And
Be arranged in the ten paper frame framves so that the drive source of driving pinion rotationally.
12. the paper pickup device of an imaging device infeeds this imaging device with paper, comprises a frictional resistance plate, this frictional resistance plate front end of the paper that predetermined angle supplied with contact that tilts, thus this paper and other paper are separated, comprising:
Paper pick-up roller, it passes paper to this frictional resistance plate;
Pick up paper carrier, rotatably support paper pick-up roller at first end that picks up paper carrier;
Pick up paper change in location unit, paper pick-up roller is moved to ten paper positions according to the paper property of being supplied with.
13. paper pickup device as claimed in claim 12 also comprises the paper feeding box, paper is stacked and placed on wherein, and paper offers imaging device from this paper feeding box.
14. paper pickup device as claimed in claim 13, wherein, the top paper in paper pick-up roller and the paper feeding box rotates in contact.
15. paper pickup device as claimed in claim 14, also comprise produce driving force pick up the paper drive source.
16. paper pickup device as claimed in claim 15 also comprises the transmission mechanism that picks up in the paper carrier, so that rotary driving force is reached paper pick-up roller, wherein, this transmission mechanism comprises:
Rotating driveshaft, this driving shaft run through at second end that picks up paper carrier relative with first end that picks up paper carrier and pick up paper carrier;
Pick up the paper gear, it is installed on the rotating driveshaft, and driving force is reached rotating driveshaft; And
A plurality of gears, they reach paper pick-up roller with driving force from rotating driveshaft.
17. paper pickup device as claimed in claim 12, wherein, picking up paper change in location unit moves to paper pick-up roller on two of picking up in the paper position at least, these two positions are included in apart from frictional resistance plate first distance to pick up the primary importance of ground paper, and sentence the second place of picking up thin paper at distance frictional resistance plate second distance, described second distance is less than described first distance.
18. paper pickup device as claimed in claim 12 wherein, picks up paper change in location unit and comprises:
At the revolving part that picks up the paper carrier place, to rotate to predetermined angular around one;
Driver element moves picking up between the paper position to drive revolving part;
Control module, it surveys paper property, based on the paper property control driver element of being surveyed.
19. paper pickup device as claimed in claim 18, wherein, revolving part also comprises:
Paper pick-up roller on revolving part one side is to rotate and to pick up thus paper;
The paper pick-up roller axle, it is coaxial with revolving part, and revolving force is passed to this paper pick-up roller.
20. paper pickup device as claimed in claim 17, wherein, driver element comprises:
First connector, it has first end that is connected with a side of revolving part;
Second connector, it has first end that is connected with second end of first connector by pin, and described second end is relative with first end of first connector;
Be fixed on the axle on second end of second connector, this second end is relative with first end of second connector;
The 3rd connector, it has first end on the axle that is fixed between second connector, second end;
Drive source, it is connected second end of three connector relative with first end of the 3rd connector, with the first, the second and the 3rd connector that links.
21. paper pickup device as claimed in claim 17, wherein, this drive source is a solenoid.
22. paper pickup device as claimed in claim 17, wherein, this drive source is an electromagnet.
23. paper pickup device as claimed in claim 17 also comprises: a sensor with the detection paper property, and produces the signal that reaches control module.
24. a method of picking up the varying strength paper in the imaging device that comprises paper pick-up roller and friction plate comprises:
When the input print command, survey paper strength;
Based on the characteristic of being surveyed, that determines relative friction plate picks up the paper position; And
Handle paper pick-up roller, make it to be in the determined paper position of picking up.
25. method as claimed in claim 24, wherein, described detection comprises that also the input paper property is to printer driver.
26. method as claimed in claim 24, wherein, described manipulation comprises:
When paper is thin, paper pick-up roller is shifted near this friction plate; And
When paper is thicker, paper pick-up roller is moved away from this friction plate.
27. the paper pickup device of an imaging device, paper are fed in this imaging device, comprise the frictional resistance plate, this frictional resistance plate predetermined oblique angle is separated this paper and other paper to contact the front end of the paper of being supplied with, and comprising:
Paper pick-up roller is to pass paper to the frictional resistance plate;
Pick up the paper frame frame;
Pick up paper carrier, it is arranged in the ten paper frame framves movably, at the one end paper pick-up roller is set rotatably; And
Pick up paper change in location unit, paper pick-up roller is moved to ten paper positions based on the characteristic of the paper of being supplied with.
28. paper pickup device as claimed in claim 27 also comprises the paper feeding box, wherein stacked paper, and paper is supplied with this imaging device from this paper feeding box.
29. paper pickup device as claimed in claim 28 also comprises a paper feeding box mounting portion, this mounting portion is arranged in the main body of this imaging device, and the paper feeding box is mounted thereto.
30. paper pickup device as claimed in claim 27, wherein, picking up paper change in location unit moves to paper pick-up roller on two of picking up in the paper position at least, these two positions comprise apart from friction plate first distance to pick up the primary importance of ground paper, and sentence the second place of picking up thin paper apart from the friction plate second distance, described second distance is less than described first distance.
31. paper pickup device as claimed in claim 30 wherein, picks up paper change in location unit and also comprises:
Transmission framework in picking up the paper frame frame picks up the stiff end of paper carrier with support;
Gear unit is picking up on the paper frame frame back and forth so that transmit framework;
Control module, the characteristic of detection paper, and according to the paper property control driver element of being surveyed.
32. paper pickup device as claimed in claim 31 wherein, transmits framework and comprises:
First and second guide posts that stretch out from a side that transmits framework; And
Gathering sill in picking up the paper frame frame, it admits guide post, thus guiding transmits the motion of framework in picking up the paper frame frame.
33. paper pickup device as claimed in claim 32, wherein, first guide post is connected an end that picks up paper carrier and transmits on the framework.
34. paper pickup device as claimed in claim 32, wherein, delivery unit comprises:
Be installed in the rack elements that transmits on the framework;
Pinion with the rack elements engagement;
Picking up the CD-ROM drive motor that drives this pinion on the paper frame frame.
35. paper pickup device as claimed in claim 31 also comprises: sensor, it surveys paper property, and produces the signal that passes to this control module.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR52225/2002 | 2002-08-31 | ||
| KR52225/02 | 2002-08-31 | ||
| KR10-2002-0052225A KR100474481B1 (en) | 2002-08-31 | 2002-08-31 | A paper pick-up device for image forming aparatus |
| KR10-2003-0035170A KR100512966B1 (en) | 2003-05-31 | 2003-05-31 | A paper pick-up device for image forming aparatus |
| KR35170/2003 | 2003-05-31 | ||
| KR35170/03 | 2003-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1495035A true CN1495035A (en) | 2004-05-12 |
| CN1235748C CN1235748C (en) | 2006-01-11 |
Family
ID=31497747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031648118A Expired - Fee Related CN1235748C (en) | 2002-08-31 | 2003-09-01 | Paper pickup device for imaging equipment |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20040046309A1 (en) |
| EP (1) | EP1394087A3 (en) |
| CN (1) | CN1235748C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180028A (en) * | 2011-01-26 | 2011-09-14 | 龙梅 | Translational device of universal printer special for acryl |
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| US6896254B2 (en) * | 2003-03-28 | 2005-05-24 | Hewlett-Packard Development Company, L.P. | Auto compliant pick arm |
| DE102004038753B3 (en) * | 2004-08-09 | 2005-09-08 | Bdt Ag | Singling system for stack of sheets of paper has rollers with patterned surfaces mounted on shaft on end of arm with hinge at either end |
| JP4829736B2 (en) * | 2005-10-05 | 2011-12-07 | キヤノン株式会社 | Image forming apparatus |
| DE102005056634B4 (en) * | 2005-11-25 | 2010-07-22 | Bdt Ag | Sheet singulation system, method for frictionally separating and conveying sheets |
| US20080224380A1 (en) * | 2007-03-14 | 2008-09-18 | Yraceburu Robert M | Media pick assembly with motorized carriage |
| DE102007018398A1 (en) * | 2007-04-17 | 2008-10-23 | Bdt Ag | Sorting system for paper handling system, has separating and delivering head effectively connected with moving mechanism that is designed for variably provided pre-adjustment of distance of head |
| US7717417B2 (en) * | 2007-06-20 | 2010-05-18 | Lexmark International, Inc. | Devices for improving the reliability of feeding media sheets within an image forming device |
| JP6265727B2 (en) * | 2013-12-17 | 2018-01-24 | キヤノン株式会社 | Supply device, recording medium supply method, and recording device |
| JP2017065878A (en) * | 2015-09-30 | 2017-04-06 | ブラザー工業株式会社 | Sheet transportation device and image formation device |
| JP2022016966A (en) * | 2020-07-13 | 2022-01-25 | キヤノン株式会社 | Sheet feeder, and image forming apparatus |
| US20230056979A1 (en) * | 2021-08-19 | 2023-02-23 | Toshiba Tec Kabushiki Kaisha | Paper feeding device |
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| JPS5727838A (en) * | 1980-07-21 | 1982-02-15 | Canon Inc | Paper feeder |
| JPS6023234A (en) * | 1983-07-15 | 1985-02-05 | Canon Inc | Sheet feeder |
| FR2622182B1 (en) * | 1987-10-27 | 1991-11-15 | Sadamel App Mesures Labo | METHOD AND APPARATUS FOR AUTOMATICALLY DISPENSING OBJECTS |
| JPH07102908B2 (en) * | 1988-06-11 | 1995-11-08 | 株式会社ピーエフユー | Automatic paper feeder |
| JPH02221039A (en) * | 1989-02-17 | 1990-09-04 | Minolta Camera Co Ltd | Sheet feeding device |
| JPH04209133A (en) * | 1990-11-30 | 1992-07-30 | Toshiba Corp | Automatic document sheet feeder |
| DE4131726A1 (en) * | 1991-09-24 | 1993-03-25 | Bdt Buero Datentech Gmbh | METHOD AND DEVICE FOR SEPARATING SHEET-SHAPED RECORD CARRIERS |
| JPH11100132A (en) * | 1997-09-29 | 1999-04-13 | Toshiba Tec Corp | Automatic paper feeding device |
| US6375183B1 (en) * | 1999-04-08 | 2002-04-23 | Canon Kabushiki Kaisha | Sheet feeding apparatus with inclined separation plane, and image forming apparatus having same |
| JP2001088951A (en) * | 1999-07-22 | 2001-04-03 | Canon Inc | Sheet feeding device and image forming device |
| DE19950307C1 (en) * | 1999-10-19 | 2001-02-01 | Bdt Buero Datentech Gmbh | Sheet separation device for printer or copier has driven displacement roller in frictional engagement with uppermost sheet for feeding it towards angled stop surface |
| US6502816B2 (en) * | 2000-03-13 | 2003-01-07 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus having same |
| US6382619B1 (en) * | 2000-04-19 | 2002-05-07 | Hewlett-Packard Company | Pick mechanism and image forming device including the same |
| US6209862B1 (en) * | 2000-05-23 | 2001-04-03 | Hewlett-Packard Company | Print media pick and feed anti-wrap method and apparatus |
| JP2002046874A (en) * | 2000-08-02 | 2002-02-12 | Canon Inc | Paper feeding device and picture image formation device equipped with it |
| KR100412492B1 (en) * | 2001-10-11 | 2003-12-31 | 삼성전자주식회사 | Paper feeding device for printer |
-
2003
- 2003-08-28 US US10/649,728 patent/US20040046309A1/en not_active Abandoned
- 2003-08-29 EP EP03255375A patent/EP1394087A3/en not_active Withdrawn
- 2003-09-01 CN CNB031648118A patent/CN1235748C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180028A (en) * | 2011-01-26 | 2011-09-14 | 龙梅 | Translational device of universal printer special for acryl |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1394087A2 (en) | 2004-03-03 |
| EP1394087A3 (en) | 2005-01-19 |
| CN1235748C (en) | 2006-01-11 |
| US20040046309A1 (en) | 2004-03-11 |
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