CN101323212B - Fluid supplying apparatus, fluid ejecting apparatus, and fluid supplying method - Google Patents
Fluid supplying apparatus, fluid ejecting apparatus, and fluid supplying method Download PDFInfo
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- CN101323212B CN101323212B CN2008101114131A CN200810111413A CN101323212B CN 101323212 B CN101323212 B CN 101323212B CN 2008101114131 A CN2008101114131 A CN 2008101114131A CN 200810111413 A CN200810111413 A CN 200810111413A CN 101323212 B CN101323212 B CN 101323212B
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Abstract
The invention provides a fluid supplying apparatus, a fluid ejecting apparatus and a fluid supplying method. In an ink supplying mode with water level pressure, each supply of the supplied fluid from a fluid accepting body to a fluid supply opening of a fluid ejector can be controlled. In the fluid supplying apparatus, a plurality of ink supply pipes (26) extended from an ink supplying source of a same color, namely an ink box (25Y) (fluid accepting body) are branched into a plurality of (such as three or four) branch pipe portions (26B) in the way, each branch pipe portion (26B) being connected with the connecting portion (15C) of each recording head (15) composing a line type ejector (12).
Description
Technical field
The present invention relates to be installed on fluid supply apparatus from fluid to the fluid ejecting head of fluid ejection apparatus, fluid ejection apparatus and fluid supply method that fluid ejection apparatus such as ink-jet printer for example uses, supply with.
Background technology
For example disclose a kind of ink-feeding device in patent documentation 1, this ink-feeding device extends a stream from main containing box (fluid packaging container), and the individual path of telling from this stream is connected with a plurality of fluid ejecting heads respectively.In this ink-feeding device, supply with and supply to the constituent parts head that constitutes record head by main containing box as the China ink of fluid.And this fluid feed path is a kind of black endless form that will reflux to main containing box once more from the China ink that main containing box is sent.In addition, in a lot of ink-jet printers, employing be not reflux but acyclic mode (unidirectional supply mode) that uniaxially is sent to the record head side by the China ink that main containing box is supplied with.
For example, as shown in figure 10, be connected with each record head 64 that constitutes line injector head 63 from black containing box 61 extended ink supply pipes 62.At this moment, the long side direction that ink supply pipe 62 follows formula injector head 63 is provided on the stream via all record heads 64 that constitute line injector head 63, and ink supply pipe 62 is following supply road structures: told the quantity that equates with the injector head number with each record head 64 corresponding arm 62A of portion.And, come ink supply by driving the wheel cylinder of supplying with in the road (supply pump).
Patent documentation 1: TOHKEMY 2005-22124 communique (for example Fig. 2, Fig. 3)
Yet, in this supply mode, if make by a root-canal ramification is the structure as shown in figure 10 of a plurality of pipes, then because China ink is difficult to supply to the connecting portion 64A (fluid supply port) of following record head 64, this record head 64 be be arranged in the ink supply path on the record head that is connected than the 62A of arm portion (part of the left end side of Figure 10) in distally (downstream) from black containing box 61, therefore in supplying with stream, also to dispose supply pump.Therefore yet if the configuration supply pump, in its downstream, pressure can raise, and might cause the connection of pipe to throw off or break etc., also has cost such problem that raises.Therefore, preferred, do not use supply pump but utilize the water-head of black containing box 61 and record head 64 to come ink supply, yet, still exist to be difficult to the such problem in the past of ink supply.This is that ink supply pressure becomes low more because of pressure loss etc. because the ink supply path is long more.Its result produces the ink supply inequality between the record head 64, will cause the deviation of the black emitted dose between the record head 64, thereby has the problem that therefore causes print quality to descend.
Summary of the invention
The present invention makes in view of the above problems, its objective is provides following fluid supply apparatus, liquid injection apparatus and fluid supply method: for the mode of utilizing level pressure to carry out ink supply, can will control lessly to the supply inequality of the fluid of each fluid supply port supply of fluid ejecting head from the fluid packaging container.
The present invention is a kind of fluid supply apparatus that uses on the fluid ejection apparatus that is installed in order to supply fluid to fluid ejecting head, possesses: at least one fluid packaging container of taking in fluid; And the fluid feed path, it is used to utilize level pressure to supply with a kind of fluid to above-mentioned fluid ejecting head from above-mentioned fluid packaging container; Take in the side from above-mentioned fluid and extend many above-mentioned fluid feed paths, and the end of the elongated end of these many fluid feed paths is connected to the fluid supply port of the above-mentioned fluid ejecting head of this number more than many.
Thus, because therefore fluid can be controlled the difference of the fluid feed path length till each fluid supply port of fluid ejecting head less by supply to the fluid supply port of this number more than many from the extended many fluid feed paths of fluid packaging container.Therefore, can control the supply inequality of the fluid supplied with to each fluid supply port of fluid ejecting head less.
In addition, in fluid supply apparatus of the present invention, preferred, the part of above-mentioned many fluid feed paths is branched off into many branch roads halfway, and each above-mentioned branch road is connected to the fluid supply port of above-mentioned fluid ejecting head.
Here, also can be that above-mentioned many fluid feed paths are branched off into many branch roads respectively halfway, and each above-mentioned branch road is connected to the fluid supply port of above-mentioned fluid ejecting head.
Thus, the radical of the fluid feed path that is connected with the fluid packaging container can be controlled to such an extent that to many number of fluid supply port of the connection destination of a fluid feed path that is fluid ejecting head than this few.Therefore, even if the fluid supply port is most structure, also can control the radical of the fluid feed path that is connected with the fluid packaging container to such an extent that lack than the number of fluid supply port.For example, adopting when many whole fluid feed paths are branched off into the structure of the branch road more than two, the radical of fluid feed path can be controlled at below half of number of fluid supply port.
In fluid supply apparatus of the present invention, preferred, be provided with a plurality of above-mentioned fluid packaging containers, extend many above-mentioned fluid feed paths respectively from above-mentioned a plurality of fluid packaging containers.In addition, for each fluid packaging container, the radical from the extended fluid feed path of a plurality of fluid packaging containers can have nothing in common with each other.
Thus, owing to extend many fluid feed paths respectively from a plurality of fluid packaging containers, therefore, even if for example the fluid supply port of fluid ejecting head is more, also can with the fluid packaging container as a plurality of fluid supply ports of public fluid supply source near each fluid packaging container of configuration, therefore can control the fluid feed path between fluid packaging container and fluid ejecting head shorter.By controlling the fluid feed path shorter, can further suppress for example pressure loss of fluid, and be more prone to control the supply inequality of fluid to each fluid supply port of fluid ejecting head.
In fluid supply apparatus of the present invention, be preferably, above-mentioned fluid packaging container has the anisotropy shape, and above-mentioned many fluid feed paths extend out from the surface that the long side direction along above-mentioned fluid packaging container extends.
Thus, even if extend many fluid feed paths, also can vacate the extending part that appropriate intervals is come the fluid feed path, and can improve the free degree of layout from the fluid packaging container.
What thus, the extending part of fluid feed path can be set in that the long side direction of longshore current body packaging container extends is lip-deep near on the position as the fluid supply port of connection destination.
In fluid supply apparatus of the present invention, be preferably, the fluid feed path length of above-mentioned many fluid feed paths is all identical.
Thus, because the fluid feed path length of many fluid feed paths is all identical, therefore, if the stream diameter of the part beyond the branch road is identical, then the flow path resistance of fluid feed path is all identical, thereby can prevent the ink supply inequality between the fluid feed path.
The invention provides a kind of fluid ejection apparatus, possess: fluid ejecting head and supply fluid to each the fluid supply apparatus of foregoing invention of the fluid supply port of above-mentioned fluid ejecting head.
Thus, therefore this fluid ejection apparatus can obtain the effect identical with foregoing invention owing to possess the fluid supply apparatus of foregoing invention.
In addition, the invention provides a kind of fluid supply method, utilize the fluid feed path of the same a kind of fluid of level pressure in fluid ejecting head is supplied with the fluid packaging container to be provided with, make it extend many from above-mentioned fluid packaging container to being used to; And the above-mentioned fluid ejecting head side end of each fluid feed path is connected respectively to the fluid supply port of the fluid ejecting head that has been set up more than the above-mentioned many number, by extending many above-mentioned fluid feed path from above-mentioned fluid packaging container, will supply to each of fluid supply port of above-mentioned fluid ejecting head with a kind of fluid.Thus, can obtain the effect same with the fluid supply apparatus of foregoing invention.
Description of drawings
Fig. 1 is the schematic main cutaway view of the schematic configuration of the printer in embodiment of expression.
Fig. 2 is the stereogram of expression ink-feeding device.
Fig. 3 is the upward view of the part of expression line injector head.
Fig. 4 is the schematic diagram of the ink-feeding device in the expression variation.
Fig. 5 is the schematic diagram of the ink-feeding device of the expression variation different with Fig. 4.
Fig. 6 is the schematic diagram of the ink-feeding device of the expression variation different with Fig. 5.
Fig. 7 is the schematic diagram of the ink-feeding device of the expression variation different with Fig. 6.
Fig. 8 is the schematic diagram of the ink-feeding device of the expression variation different with Fig. 7.
Fig. 9 is the schematic diagram of the ink-feeding device of the expression variation different with Fig. 8.
Figure 10 is a schematic diagram of representing ink-feeding device in the past.
Symbol description:
11... printer as fluid ejection apparatus; 12... line injector head; 15... record head (unit head) as fluid ejecting head; 15C... connecting portion as the fluid supply port; 25... constitute fluid supply apparatus and as the print cartridge of fluid packaging container (fluid supply source); 26... constitute fluid supply apparatus and as the ink supply pipe of fluid feed path; 26A... person in charge portion; 26B... arm portion as branch road; 27... ink supply pipe (no branch); 40... cartridge seat (stream seat); 45... print cartridge as fluid packaging container (fluid supply source); 46... ink supply pipe as the fluid feed path; 51... line injector head
The specific embodiment
Below, in conjunction with Fig. 1～Fig. 3 a specific embodiment of the present invention is described.
Fig. 1 has represented the schematic main cutaway view as the inkjet recording device of fluid ejection apparatus.
As the inkjet recording device of fluid ejection apparatus (below, be called for short printer 11), be a kind of line printer that possesses the line injector head 12 that can in the scope of maximum, print with the whole zone of paper width.In the main body cover 11A of the case shape of last side opening, for example vertically be provided with four (figure is shown with two among Fig. 1) driving shafts 13 (screw shaft), on the injector head holding member 14 (supporting frame) that the screw by four angles and four driving shafts 13 screw, be supported with a plurality of record heads 15 (unit head), these a plurality of record heads 15 are along being arranged as two row (with reference to Fig. 3) with the width Y that intersects with paper throughput direction (directions X among Fig. 1).A driving shaft 13 in four constitutes: but be connected with electro-motor 17 via gear mechanism 16 transferring power ground, drive electro-motor 17 by rotating, can make lifting on the Z direction of line injector head 12 in Fig. 1.
Below line injector head 12, be equipped with the object conveyor thing that is with the supply unit 20 of paper 18.Supply unit 20 possesses: the electro-motor 23 of a plurality of rollers 21 (only illustrating among Fig. 1), the many conveyer belts 22 that hang over roller 21 axial a plurality of positions and rotation drive roller 21.A plurality of conveyer belts 22 are configured in the below in opposite directions on the position in zone of avoiding each record head 15, roller 21 are rotated drive a plurality of conveyer belts 22 by driving electro-motor 23, thereby use paper 18 what carry institute's mounting on the conveyer belt 22 on the throughput direction X.In addition, drive electro-motor 17 by forward or reverse and make 12 liftings of line injector head, for example adjust record head 15 and with the gap between the paper 18 (or conveyer belt upper surface).
Top position at line injector head 12, take in four fluid packaging containers of cyan (C), magenta (M), yellow (Y), four kinds of colors of ink of black (K) that is print cartridge 25C, 25M respectively, 25Y, 25K remain on level, and the state configuration to form a line side by side on width Y.Each print cartridge 25C, 25M, 25Y, 25K are flat long square plate shape shape, and extend many (for example being four Fig. 1) fluid feed path that is ink supply pipes 26 from the side that edge long side direction separately extends.Ink supply pipe 26 branches into many (being three or four in this example) halfway, and the 26B of arm portion that branches out is connected on the upper end of different record head 15.China ink from each print cartridge 25C, 25M, 25Y, 25K supplies in the record head 15 that differs from one another by ink supply pipe 26.
In addition, be respectively arranged with capping unit 30 on the position in opposite directions below each record head 15.Capping unit 30 possesses: gland 31, formation are to the sucking pump 32 of the negative pressure generating mechanism of generation attractions in the gland 31 and the elevating mechanism (omitting diagram) that makes gland 31 liftings.Gland 31 utilizes elevating mechanism, can retreating position shown in Figure 1 (extreme lower position) and and the nozzle of record head 15 form the lifting between the position of bearing down on one of face 15A butt.And, under the state that bears down on one, by driving sucking pump 32, gland 31 in, import negative pressure, and nozzle is applied attraction (negative pressure) by this negative pressure, remove China ink that the interior viscosity of nozzle increased and the bubble in the China ink etc., clean with this.
Fig. 3 represents is the upward view that forms the line injector head that the face side seen from nozzle.
The a plurality of record heads 15 broad ways Y that constitute line injector head 12 are arranged in two row alternately.The lower surface of each record head 15 (bottom surface) is that the nozzle of nozzle opening forms face 15A, forms corresponding four the nozzle rows 15B of four kinds of colors that are formed with on the face 15A with China ink at nozzle.Each nozzle rows 15B is arranged alternately and is formed by a plurality of (for example 180) nozzle.Divide four streams that have with the corresponding different mass colours of each nozzle rows 15B in the record head 15, and supply with the China ink of corresponding mass colour to each stream.Therefore, from constituting the nozzle of same nozzle rows 15B, eject China ink with a kind of color.
In record head 15, on each stream of each mass colour, be built-in with pressure-regulating valve.This pressure-regulating valve, owing to consumed China ink from nozzle ejection, the indoor China ink of China ink is pressed when being reduced to setting and is opened, closing when having replenished the amount that consumed black by opening, thus, pressure-regulating valve has China ink that China ink is indoor and presses and be maintained constant and to the function of black chamber ink supply.In addition, in record head 15, each nozzle with corresponding position, black chamber, be provided with and discharge driving element (all not shown), drive and discharge driving element and give the indoor China ink of China ink, thereby discharge ink droplet by nozzle with expulsion force.In addition, as discharging driving element, can be in the following way, promptly, use piezoelectric vibration device the piezoelectricity mode, use the static driving element electrostatic means, use the mode of heating of heater etc.In addition, in the present embodiment, constituted fluid supply apparatus by print cartridge 25, cartridge seat 40, many ink supply pipes 26.
In addition, by record head 15 is staggered is two row, the nozzle rows of the nozzle rows of the first row record head 15 and secondary series record head 15, at least one nozzle at both ends overlaps when the above-below direction projection of Fig. 3, or the nozzle at two ends is continuous with certain injector spacing respectively.Therefore, even if under the state that record head 15 is fixed, also can use the printing of paper Breadth Maximum scope.
Fig. 2 is the stereogram of expression ink-feeding device.In addition, no matter since black color how, the structure of print cartridge all is identical, therefore in Fig. 2, not according to each black color print cartridge is distinguished, and label symbols 25 all.As shown in Figure 2, print cartridge 25 has print cartridge shell 35, is accommodated in the China ink bag (ink pack) 36 in the print cartridge shell 35.Print cartridge shell 35 is made up of shell 37 and lid 38.The China ink bag 36 that is accommodated in the print cartridge shell 35 is made up of bag 36A and plastic ink supply parts 36B, this bag 36A forms roughly four limit bag shapes by the resin flake of the lit-par-lit structure that accompanies metal formings such as aluminium, forms and ink supply parts 36B is a limit portion thermo-compressed with bag 36A.The China ink bag 36 of present embodiment, its a plurality of ink supply 36D of portion cylindraceous (for example four) are outstanding from the base portion 36C of ink supply parts 36B.In China ink bag 36, be packaged with the China ink of four kinds of a kind of colors in the color.
The print cartridge 25 of closing lid 38 and China ink bag 36 being accommodated under the inner state is that flat long square plate shape, a plurality of ink supply 36D of portion are in the state that exposes from the side that the long side direction along print cartridge 25 extends.In addition, the both sides on this side are formed with four 36D of ink supply portion are sandwiched in therebetween locating hole 39.
As shown in Figures 1 and 2, ink supply pipe 26 possesses: the 26A of person in charge portion, and it occupies most of length (for example 80～95% of total length) of upstream side (print cartridge side), and extends with one form; With three or four 26B of arm portion, occupy the length of total length 5～20% in the downstream, and tell from the 26A of person in charge portion.In the present embodiment, to form its internal diameter thinner than the internal diameter of the 26A of person in charge portion for the 26B of arm portion.In addition, for the 26A of person in charge portion, only there is one structure to compare with ink supply pipe in the past, the black flow of a pipe is the flow that obtains with the radical of ink supply pipe 26 used in this example (for example " 4 ") removal, therefore bore is reduced in the past the internal diameter under one the situation only about half of value (come comparison with flow path cross sectional area, be in the past 1/4).Therefore, if ignore the pressure loss that the thin footpathization of pipe is brought,, can guarantee black flow with the same degree of structure in the past of ink supply Guan Weiyi root then by many ink supply pipes 26 of use.
In the example of Fig. 1, the record head 15 that constitutes line injector head 12 is 14, and relative therewith, for a kind of color (with a kind of fluid), ink supply pipe 26 is four, and both quantity is the relation that can't eliminate.Therefore, ink supply pipe 26 has adopted two following kinds, promptly, a kind of be to branch into four 26B of arm portion, being connected with four record heads 15, another kind is to branch into three 26B of arm portion, being connected with three record heads 15.
And, in the present embodiment, as shown in Figure 1, be disposed at one-sided each three record head 15 at long side direction two ends in the line injector head 12, be connected with three the 26B of arm portion of branching into of ink supply pipe 26, except each each four record head 15 three of both end sides, be connected with four the 26B of arm portion of branching into of ink supply pipe 26 respectively near central authorities.Just, on the width of printer 11, record head 15 is divided into a plurality of groups of on the long side direction of line injector head 12 number symmetry, and the supply pipe 26 of the branch number that the number by the record head 15 that has and belong to group equates couples together the record head 15 in each group with print cartridge 25.In addition, constitute line injector head 12 record head 15 number can according to 11 of printers can be corresponding maximum paper size and the size of record head 15 do suitable variation.
In addition, in the printer 11 that constitutes as described above, the China ink in the print cartridge 25 (China ink bag 36) supplies to each record head 15 by many ink supply pipes 26 with path arranged side by side.Therefore, can control the difference of the ink supply path between the record head 15 less.Its result can control the loss difference that puts on the pressure of print cartridge 25 to the China ink between each record head 15 less, and can control the ink supply inequality between the record head 15 less.Therefore, can suppress the deviation of the black emitted dose between the uneven caused record head 15 of ink supply effectively, thereby can improve print quality.
In addition, be that one structure is compared with in the past ink supply pipe, can shorten from print cartridge 25 to record head the maximum length in the ink supply path 15.The ink supply path is long more, then the holdup time of the China ink that flows through in the ink supply pipe just extends relatively, and along with the lengthening of this black holdup time, the degree that water evaporates in the China ink that moisture and gas (air) cause through the resin material of ink supply pipe 26 and gas are dissolved in the China ink will increase.And, in the ink supply process of being undertaken by ink supply pipe 26, if the degree of this water evaporates and gas dissolving surpasses certain threshold value, then nozzle the viscosity interior or China ink that China ink is indoor just is easy to high to the degree that causes spray nozzle clogging, in nozzle or in the black indoor China ink, be easy to sneak into the bubble that produces because of dissolved gas.Yet, compared with the past according to present embodiment, the maximum length in ink supply path can be shortened, therefore, the holdup time that can reduce China ink effectively surpasses the frequency of above-mentioned threshold value.Therefore, can be with water penetration and gas permeability than the high resin material of metal material as tube material, and compare with structure in the past, can reduce by the caused China ink of the bubble in spray nozzle clogging or the China ink and discharge bad occurrence frequency.
According to the present embodiment of above detailed introduction, can obtain following effect.
(1) extends the structure that many ink supply pipes 26 are connected to the connecting portion 15C of record head 15 owing to having adopted from print cartridge 25, therefore, compare with the structure in the past that disposes an ink supply pipe with stream via the connecting portion (fluid supply port) of whole record heads, can with towards direct destination that is the very short stream of connecting portion 15C dispose ink supply pipe 26.Its result, compared with the past, can shorten poor from print cartridge 25 to the ink supply path each connecting portion 15C, therefore can suppress the ink supply inequality between the record head 15 less.
(2) in addition, even if be that one situation is identical in the flow velocity of the China ink that in many ink supply pipes 26, flows through and the structure in the past, also the holdup time of China ink in ink supply pipe 26 can be shortened the corresponding amount of amount that can shorten with ink supply pipe 26.Its result, the extent control that the water evaporates and the gas of the China ink in the ink supply pipe 26 can be dissolved in China ink must be lower.Therefore, can reduce the occurrence frequency of the spray nozzle clogging that causes black viscosity to rise to cause because of water evaporates and discharge bad occurrence frequency because of the gas dissolving produces the caused China ink of bubble in China ink.
(3) owing to adopted ink supply pipe 26 branched into the many 26B of arm portion, and the structure that each 26B of arm portion is connected with the connecting portion 15C of different record head 15 respectively, therefore, the radical of ink supply pipe 26 is lacked than the number of the connecting portion 15C of record head 15.Therefore, even if as line injector head 12, possess the structure of a plurality of record heads 15, for example the branch number at ink supply pipe 26 is in the present embodiment of " 3 " or " 4 ", also a kind of radical of black required ink supply pipe 26 of color can be controlled in 1/3～1/4 the scope of number of connecting portion 15C of record head 15.And only need carry out for example ink supply pipe 26 being connected to such simple of print cartridge 25 and record head 15 is connected operation and gets final product.
(4) in the such print cartridge with anisotropy shape 25 of four side plate shapes, on the surface of extending, dispose a plurality of ink supply 36D of portion along its long side direction, therefore the connection space of many ink supply pipes 26 can be guaranteed fully, the selection free degree of connecting portion can be improved in addition.
In addition, embodiment is not limited to above-mentioned embodiment, also can followingly be out of shape.
(variation 1) also can adopt following structure as shown in Figure 4, promptly, to make the branch number of the ink supply pipe 26 that is connected with the connecting portion 15C that belongs to away from the record head 15 of the group of print cartridge 25 1 sides be a plurality of.Just, on the width of printer, make belong to be arranged in apart from print cartridge 25 farthest the number of the connecting portion 15C of the record head 15 of the group of the position of (left and right sides of Fig. 4 is distolateral) be maximum numbers " four ", make to belong near the number of the connecting portion 15C of the record head 15 of the group of print cartridge 25 for than four " three " that lack.Like this, the ink supply pipe 26 that is connected with the record head 15 of distance, its pipe range is long more, the holdup time that arrives the China ink of record head 15 just extends relatively, therefore, and in order to reduce the holdup time of China ink as far as possible, the ink supply pipe that is used for the record head of group far away is selected many branch numbers.According to this structure, though the diameter of many ink supply pipes 26 is identical, but the ink supply pipe 26 that the branch number is many, the number of the record head 15 of its ink supply destination is many, therefore, the China ink depletion rate increases relatively, and the flow velocity of the China ink in the ink supply pipe 26 increases relatively, and the holdup time of the China ink in the ink supply pipe 26 shortens relatively immediately.Therefore,, can shorten the holdup time of China ink relatively, therefore,, also can reduce the water evaporates of China ink and gas and be dissolved in degree in the China ink even if in the long ink supply pipe 26 of ink supply path though the ink supply path is longer.
(variation 2) in the above-described embodiment, each black color is provided with a fluid packaging container (print cartridge 25), but also can be to a plurality of fluid packaging containers are set with a kind of fluid.For example, adopt following structure, promptly, as shown in Figure 5, two conducts are set take in print cartridge 45 with a kind of fluid packaging container of China ink of black color, extend many ink supply pipes 26 respectively from each print cartridge 45, each ink supply pipe 26 is branch halfway, and the 26B of arm portion that branches out is connected with the connecting portion 15C of different record head 15 respectively.In addition, in Fig. 5, line injector head 51 be not a plurality of record heads are arranged in maximum with on the whole zone of paper width and the structure that constitutes, but with an example that forms the line injector head of strip as fluid ejecting head.This line injector head 51 is divided into a plurality of streams at long side direction, and with the pairing head part of each stream that marked off as record head 15 (unit head).
(variation 3) as shown in Figure 6, can adopt following structure, promptly so that from print cartridge 45 to all identical mode of fluid supply length, to being provided with from fluid packaging container that is print cartridge 45 extended many ink supply pipes 26 as each connecting portion 15C (fluid supply port) of the line injector head 51 of fluid ejecting head.According to the structure of Fig. 6,, therefore can prevent ink supply inequality to each connecting portion 15C because the flow path length from print cartridge to each connecting portion 15C is all identical.In addition, in Fig. 6, though also all identical in the length of many branch roads of the branch midway of ink supply pipe 26 that is the 26B of arm portion, so long as the flow path length from print cartridge 45 to each connecting portion 15C is all identical, then the length difference of the 26B of arm portion is also harmless.In addition, in Fig. 6, though ink supply pipe 26 is structures of two branches, as long as whole flow path length is all identical, then the branch number of ink supply pipe also can adopt the above suitable number of three branches.In addition, also can replace being provided with as shown in Figure 6 the structure of a plurality of print cartridges 45, and as the variation of above-mentioned embodiment or Fig. 4, adopt the structure of a print cartridge 25 is set with a kind of China ink.
(variation 4) though many whole ink supply pipes are branched into many halfway, also can comprise the not ink supply pipe of branch of part in the above-described embodiment in the many ink supply pipes.In example as shown in Figure 7, the connecting portion 15C (fluid supply port) of record head 15 that is positioned at the long side direction two ends of line injector head 12 is connected with the ink supply pipe 27 of branch not.In addition, the long more minute number of flow path length is provided with fewly more, in this embodiment, be positioned in formation on each three record head 15 of first group of the close middle position nearer apart from print cartridge, be connected with the ink supply pipe 26 of three branches, on each two record head 15 of second group that constitute its both sides, be connected with the ink supply pipe 26 of branch number, on outermost record head 15, be connected with the not ink supply pipe 27 of branch for " 2 ".The connection structure few more according to the branch number of the long more ink supply pipe of this flow path length, even if utilize hydraulic pressure to come the structure of ink supply, also can suppress the ink supply pressure inequality of connecting portion 15C less, therefore can get Deviation Control less because of the black emitted dose between the uneven caused record head 15 of ink supply pressure.
In addition, as shown in Figure 8,, in the many ink supply pipes 26,27 that connect print cartridge 45 and record head 15, also can contain the not ink supply pipe 27 of branch of part even if in possessing the structure that a plurality of print cartridges 45 with a kind of colors of ink are arranged.In this embodiment, in a plurality of (in this example the being six) record head 15 that becomes from the ink supply destination of the China ink of a print cartridge 45, be positioned on the record head 15 at two ends relatively at a distance and be connected with the not ink supply pipe 27 of branch.Even if in the structure of Fig. 7 and Fig. 8, because the record head that is positioned at from the longest two ends of the flow path length of print cartridge has been used the not ink supply pipe 27 of difference, therefore, for ink supply pipe 27, even if increase by the pressure loss due to the flow path length, also can eliminate by the pressure loss due to the ramification number, therefore can will suppress lessly to the inequality of each record head 15 ink supply from each ink supply pipe 26,27.
(variation 5) in the above-described embodiment, though the ink supply pipe is branched off into many halfway, the branch of ink supply pipe and nonessential.For example, as shown in Figure 9, can adopt following structure: the ink supply pipe 46 of branch connects one by one with using not between the connecting portion 15C (fluid supply port) of fluid packaging container that is print cartridge 25 and record head 15.In this structure, the length of many ink supply pipes 46 is all identical, therefore can prevent the ink supply inequality to each connecting portion 15C.
(variation 6) is not limited to print cartridge as the black packaging container of fluid packaging container, also can be black containing box.Ink supply mode when adopting black containing box can adopt the ink supply mode of having utilized water-head.When adopting black containing box, be preferably the ink supply pipe is extended out from the surface of extending along long side direction.
(variation 7) also can with carried out the ink supply pipe of branch and not the ink supply pipe of branch mix.At this moment, the ink supply pipe of branch is not limited to be connected on the record head of end, for example can be connected on the connecting portion 15C near the record head 15 of central authorities yet.The branch number of ink supply pipe also can be at five more than the branch in addition.
(variation 8) fluid ejection apparatus is not limited to line printer, for example also can be the string type printer with balladeur train.
(variation 9) in the above-described embodiment, fluid ejection apparatus is embodied as inkjet recording device, but be not limited to this, also can be embodied as injection, discharge other fluids beyond the China ink fluid ejection apparatus of (comprise: the particle of liquid, functional material disperses or is mixed in liquid and the fluidised form body of liquid body of forming, gel and so on and the solid that can flow and spray as fluid).For example, can be to contain with the state that disperses or dissolves LCD, EL (electroluminescent) display or and the manufacturing of face active display in the liquid body injection apparatus that sprays of the liquid body of used electrode material or look material materials such as (pixel materials); Or the liquid injection apparatus that the organism organic matter that uses in the biochip manufacturing is sprayed; Or the liquid injection apparatus that sprays of the liquid that uses as accurate pipette to as test portion.In addition, also can be with the liquid injection apparatus of choice refreshments (pin point) jet lubrication oil or in order to be formed for the small packaged lens (optical lens) etc. on the optical communication device etc. transparent resin liquid such as ultraviolet curable resin to be injected in the liquid injection apparatus on the substrate or to spray the liquid injection apparatus of etching solutions such as acid or alkali for etching substrates etc. or spray the fluidised form body injection apparatus of gel fluidised form bodies such as (for example physical gels) to precision optical machineries such as clock and watch or cameras.In addition, so-called " fluid " is the notion that does not only comprise by the fluid of gas composition, includes for example liquid (comprising: inorganic solvent, organic solvent, solution, liquid resin, liquid metal (molten metal) etc.), liquid body, fluidised form body etc.
Below explanation is from above-mentioned embodiment and the resulting technological thought of each variation.
(1) in any described fluid supply apparatus in technical scheme 1 to 7, preferred, above-mentioned fluid feed path is plastic pipe.Thus, even if the plastic pipe that liquid permeability and gas permeability are higher than other materials such as metals, by it is divided into many, with the fluid feed path is that one structure is in the past compared, and also can shorten the maximum length of the fluid feed path of the fluid supply port from the fluid packaging container to fluid ejecting head.Therefore, owing to can shorten the holdup time of the fluid in the fluid feed path, the proportion control that therefore liquid component of the fluid in the pipe can be dissolved in fluid to gas permeation pipe such as the ratio of outside gasification or air outside gets less.
(2) for any described fluid supply apparatus in the technical scheme 1 to 7, it is characterized in that, possesses the stream seat (40) that above-mentioned fluid packaging container is installed removably, above-mentioned fluid packaging container is by being installed on the above-mentioned stream seat, and be connected from the extended above-mentioned many fluid feed paths of this stream seat.
Claims (9)
1. fluid supply apparatus is installed on the fluid ejection apparatus in order to supply fluid to fluid ejecting head and uses, and it is characterized in that possessing:
At least one takes in the fluid packaging container of fluid; And
The fluid feed path is used to utilize level pressure to supply with a kind of fluid to above-mentioned fluid ejecting head from above-mentioned fluid packaging container;
Take in the side from above-mentioned fluid and extend many above-mentioned fluid feed paths, and at least a portion of these many fluid feed paths is branched off into many branch roads halfway, each above-mentioned branch road and not the end of the elongated end of the above-mentioned fluid feed path of branch be connected to the fluid supply port of the above-mentioned fluid ejecting head of this number more than many.
2. fluid supply apparatus according to claim 1 is characterized in that, above-mentioned many fluid feed paths are branched off into many branch roads respectively halfway, and each above-mentioned branch road is connected to the fluid supply port of above-mentioned fluid ejecting head.
3. fluid supply apparatus according to claim 1 and 2 is characterized in that, is provided with a plurality of above-mentioned fluid packaging containers, and extends many above-mentioned fluid feed paths respectively from above-mentioned a plurality of fluid packaging containers.
4. fluid supply apparatus according to claim 1 and 2 is characterized in that, above-mentioned fluid packaging container has the anisotropy shape, and above-mentioned many fluid feed paths extend out from the surface that the long side direction along above-mentioned fluid packaging container extends.
5. fluid supply apparatus according to claim 3 is characterized in that, above-mentioned fluid packaging container has the anisotropy shape, and above-mentioned many fluid feed paths extend out from the surface that the long side direction along above-mentioned fluid packaging container extends.
6. fluid supply apparatus according to claim 4 is characterized in that, above-mentioned fluid packaging container is configured to, its long side direction towards with the direction of the orientation almost parallel of the fluid supply port of a plurality of above-mentioned fluid ejecting heads.
7. fluid supply apparatus according to claim 1 and 2 is characterized in that, the fluid feed path length of above-mentioned many fluid feed paths is all identical.
8. fluid ejection apparatus is characterized in that possessing: fluid ejecting head and supply with any described fluid supply apparatus in the claim 1 to 7 of fluid to each of the fluid supply port of above-mentioned fluid ejecting head.
9. a fluid supply method is used for supplying with fluid from the fluid packaging container to fluid ejecting head, it is characterized in that,
Utilize the fluid feed path of the same a kind of fluid of level pressure in fluid ejecting head is supplied with the fluid packaging container to be provided with to being used to, make it extend many from above-mentioned fluid packaging container; And at least a portion of each fluid feed path is branched off into many branch roads halfway, and with each above-mentioned branch road and not the above-mentioned fluid ejecting head side end of the above-mentioned fluid feed path of branch be connected respectively to the fluid supply port of the fluid ejecting head that has been set up more than the above-mentioned many number, by extending many above-mentioned fluid feed path from above-mentioned fluid packaging container, will supply to each of fluid supply port of above-mentioned fluid ejecting head with a kind of fluid.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007157657 | 2007-06-14 | ||
| JP2007157657 | 2007-06-14 | ||
| JP2007-157657 | 2007-06-14 | ||
| JP2008104820A JP2009018566A (en) | 2007-06-14 | 2008-04-14 | Fluid supplying apparatus, fluid jet apparatus, and fluid supplying method |
| JP2008104820 | 2008-04-14 | ||
| JP2008-104820 | 2008-04-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101323212A CN101323212A (en) | 2008-12-17 |
| CN101323212B true CN101323212B (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101114131A Active CN101323212B (en) | 2007-06-14 | 2008-06-12 | Fluid supplying apparatus, fluid ejecting apparatus, and fluid supplying method |
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| Country | Link |
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| JP (2) | JP2009018566A (en) |
| CN (1) | CN101323212B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3327933A1 (en) | 1982-08-04 | 1984-02-09 | Olympus Optical Co., Ltd., Tokyo | INSERT FOR AN INDUSTRIAL ENDOSCOPE |
| KR20110060832A (en) * | 2009-11-30 | 2011-06-08 | 이하라 사이언스 가부시키가이샤 | Coupling ring |
| JP5569020B2 (en) * | 2010-02-15 | 2014-08-13 | セイコーエプソン株式会社 | Liquid ejector |
| JP2013158725A (en) * | 2012-02-07 | 2013-08-19 | Nippo Corp | Liquid supply apparatus |
| JP6028424B2 (en) | 2012-07-06 | 2016-11-16 | セイコーエプソン株式会社 | Printing material supply system and cartridge thereof |
| JP6134624B2 (en) * | 2013-09-26 | 2017-05-24 | エスアイアイ・プリンテック株式会社 | Liquid ejecting unit and liquid ejecting apparatus |
| JP6520265B2 (en) * | 2015-03-20 | 2019-05-29 | セイコーエプソン株式会社 | Liquid injection device |
| JP6878020B2 (en) * | 2017-01-31 | 2021-05-26 | キヤノン株式会社 | Liquid discharge device and liquid discharge head |
| CN107214962A (en) * | 2017-06-28 | 2017-09-29 | 宁夏共享模具有限公司 | A kind of array 3D printing head |
| CN111132846B (en) * | 2017-09-28 | 2022-05-17 | 惠普发展公司，有限责任合伙企业 | Engageable fluid interface members and connectors |
| CN110949014A (en) * | 2019-12-26 | 2020-04-03 | 北大方正集团有限公司 | Ink path branching device and ink supply system |
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| JP3097321B2 (en) * | 1992-06-23 | 2000-10-10 | セイコーエプソン株式会社 | INK JET RECORDING APPARATUS AND INK JET RECORDING APPARATUS OPERATING METHOD |
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| CN1326404A (en) * | 1998-10-21 | 2001-12-12 | 萨尔技术有限公司 | Ink supply system |
| JP2005022124A (en) * | 2003-06-30 | 2005-01-27 | Fuji Xerox Co Ltd | Apparatus and method for supplying ink, and recorder |
| JP2005193618A (en) * | 2004-01-09 | 2005-07-21 | Ishii Hyoki Corp | Inkjet head liquid-pumping device |
| JP2005306016A (en) * | 2004-03-22 | 2005-11-04 | Fuji Photo Film Co Ltd | Liquid feeder and image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013144461A (en) | 2013-07-25 |
| CN101323212A (en) | 2008-12-17 |
| JP2009018566A (en) | 2009-01-29 |
| JP5737322B2 (en) | 2015-06-17 |
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