CN106985528A - Liquid sprays module and fluid ejection head - Google Patents

Abstract

The uneven liquid ejection module of printing and fluid ejection head can be suppressed by providing.Therefore, the center at least one opening that opening is arranged such that in multiple ejiction opening row is not arranged in along along the same straight line of the moving direction extension of the print media of relative movement relative to the center of other openings.

Description

Liquid sprays module and fluid ejection head

Technical field

Module and fluid ejection head are sprayed the present invention relates to the liquid of the liquid for spraying ink etc..

Background technology

In ink jet printing device in recent years, liquid spray element be densely arranged in fluid ejection head, so as to Higher speed prints high-quality image.In the fluid ejection head, because path is intensive configuration compared with prior art , so the size of path reduces.

When the size of path reduces, when liquid flows through path, flow resistance can increase, thus increase the pressure loss.For This, the negative pressure increase at ejiction opening, thus printing may be influenceed to act.For example, when negative pressure increases, the meniscus of ejiction opening It can be retracted towards the inside of ejiction opening, thus liquid spray volume becomes less than the liquid spray volume of lower negative pressure state.When liquid spray Output hour, gradation of drop-out colour step-down, thus desired result can not be obtained.

Here, United States Patent (USP) No.7845763 discloses a kind of print head assembly, and it can exist by using following structure By while the pressure loss is suppressed to minimum caused by flow resistance with high speed print image：In the structure shown here, through to the greatest extent may be used Can ground close to type element extend big path supply liquid, and be passed through the thin path near type element supply liquid Body.

When big path is connected to thin path, negative pressure is low at the ejiction opening of relatively close link position, but negative pressure with It to leave and increase from connecting portion.In structure disclosed in United States Patent (USP) No.7845763, the confession arranged for different ejiction openings To mouth same position is arranged on print media conveying direction.Thus, the spray with lower negative pressure in being arranged due to each ejiction opening Outlet and the ejiction opening with high negative pressure are located at same position in the conveying direction, so being led by gradation of drop-out colour (printing is uneven) The deep or light of cause appears in the same position of nozzle row, thus emphasizes and easily identify that this is deep or light.

The content of the invention

Module and fluid ejection head are sprayed it is therefore an object of the present invention to provide and can suppress the uneven liquid of printing.

In order to obtain above-mentioned purpose, module is sprayed there is provided a kind of liquid according to the present invention, it is included from ejiction opening to relative The print media moved sprays the type element substrate of liquid, and ejiction opening and the path being arranged in type element substrate connect Logical, multiple ejiction openings set and formed the side intersected along the moving direction with the print media of relative movement along the path Arranged to the ejiction opening of extension, being provided with the type element substrate of multiple row ejiction opening row includes corresponding to the logical of each ejiction opening row The position of centre of gravity of at least one opening in road and multiple openings with communication, and opening is arranged to relative to other The position of centre of gravity of opening deviates the same straight line along the moving direction extension of the print media of relative movement.

Module is sprayed there is provided a kind of liquid according to the first aspect of invention, it is used in from ejiction opening to relatively moving Print media is sprayed in the page width formula fluid ejection head of liquid, and the liquid, which sprays module, to be included：Type element substrate, it includes First ejiction opening is arranged and the second ejiction opening row and the first liquid supply path and second liquid feed path, in the described first spray In outlet row and second ejiction opening row, the direction intersected along the direction with the relative movement is arranged with the spray for spraying liquid Outlet, the first liquid supply path and second liquid feed path are respectively to first ejiction opening row and second ejiction opening Row supply liquid and extended respectively along the direction of the intersection；With first opening and second opening, its respectively with first liquid Body feed path is connected with the second liquid feed path with respectively to first liquid supply path and second liquid Body feed path supplies liquid, wherein, the deviation of gravity center of the center of gravity of first opening and second opening is along described relative The straight line of mobile direction extension.

According to the second aspect of invention there is provided a kind of fluid ejection head, it is formed page width formula and from ejiction opening to phase Liquid is sprayed to the print media moved, the fluid ejection head includes：Type element substrate, it includes the first ejiction opening row With the second ejiction opening row and the first liquid supply path and second liquid feed path, arranged and described in first ejiction opening In second ejiction opening row, along and the direction that intersects of direction of the relative movement be arranged with the ejiction opening of ejection liquid, described the One liquid supply path and the second liquid feed path are arranged to first ejiction opening row and second ejiction opening respectively Supply liquid and extend respectively along the direction of the intersection；The lid component, it includes the first opening and the second opening and forms described A part for first liquid supply path and the second liquid feed path, first opening and the described second opening difference Connected with first liquid supply path and the second liquid feed path with respectively to first liquid supply path Liquid is supplied with the second liquid feed path, wherein, the center of gravity of the center of gravity of first opening and second opening is inclined From the straight line extended along the direction of the relative movement.

According to the third aspect of invention there is provided a kind of fluid ejection head, it is included from ejiction opening to beating for relatively moving Print multiple type element substrates that medium sprays liquid, the ejiction opening is with being arranged at the type element substrate and edge and described The communication for the direction extension that the direction of relative movement intersects, multiple ejiction openings spray along path formation multiple row Mouthful row, be provided with the type element substrate of multiple row ejiction opening row include corresponding to the path that each ejiction opening arranges and To the path supply liquid multiple openings, and at least one opening in the opening position of centre of gravity relative to including The position of centre of gravity of opening in other ejiction openings row deviates along the moving direction extension of the print media of relative movement Same straight line.

Module and fluid ejection head are sprayed in accordance with the invention it is possible to realize and can suppress the uneven liquid of printing.

By the way that to the explanation (referring to the drawings) of illustrative embodiments, further feature of the invention will be apparent below.

Brief description of the drawings

Fig. 1 is the figure for showing to spray the schematic configuration of the liquid discharge apparatus of liquid；

Fig. 2 is the schematic diagram for showing the first circulation pattern suitable for the circulating path of printing device；

Fig. 3 is the schematic diagram for showing the second circulation pattern suitable for the circulating path of printing device；

Fig. 4 is the schematic diagram of the difference shown to the black influx of fluid ejection head；

Fig. 5 A are the stereograms for showing fluid ejection head；

Fig. 5 B are the stereograms for showing fluid ejection head；

Fig. 6 is to show to constitute the part of fluid ejection head or the exploded perspective view of unit；

Fig. 7 is to show the first passage member to the figure of the front and back of third path component；

Fig. 8 is perspective view when from module mounting surface is sprayed for the part α for showing Fig. 7 (a)；

Fig. 9 is the sectional view along Fig. 8 line IX-IX interceptions；

Figure 10 A are the stereograms for showing an ejection module；

Figure 10 B are the exploded views for showing an ejection module；

Figure 11 A are the figures for showing type element substrate；

Figure 11 B are the figures for showing type element substrate；

Figure 11 C are the figures for showing type element substrate；

Figure 12 is the stereogram in the section for showing type element substrate and The lid component；

Figure 13 is the close-up top view of the adjacency section of type element substrate；

Figure 14 A are the stereograms for showing fluid ejection head；

Figure 14 B are the stereograms for showing fluid ejection head；

Figure 15 is the strabismus decomposition figure for showing fluid ejection head；

Figure 16 is the figure for showing the first passage member；

Figure 17 is the perspective view for showing the liquid annexation between type element substrate and passage member；

Figure 18 is the sectional view along Figure 17 line XVIII-XVIII interceptions；

Figure 19 A are the stereograms for showing an ejection module；

Figure 19 B are the stereograms for showing an ejection module；

Figure 20 is the schematic diagram for showing type element substrate；

Figure 21 is shown by spraying liquid come the figure of the ink jet printing device of print image；

Figure 22 A are that the liquid for showing printing device sprays the figure of module；

Figure 22 B are that the liquid for showing printing device sprays the figure of module；

Figure 23 A are the figures for the structure for showing type element substrate；

Figure 23 B are the figures for the structure for showing type element substrate；

Figure 23 C are the figures for the structure for showing type element substrate；

Figure 24 A are the figures for showing the relation between the aperture position of The lid component and corresponding gradation of drop-out colour；

Figure 24 B are the figures for showing the relation between the aperture position of The lid component and corresponding gradation of drop-out colour；

Figure 25 A are that the liquid for showing printing device sprays the figure of module and fluid ejection head；

Figure 25 B are that the liquid for showing printing device sprays the figure of module and fluid ejection head；

Figure 25 C are that the liquid for showing printing device sprays the figure of module and fluid ejection head；

Figure 26 A are the figures for the structure for showing type element substrate；

Figure 26 B are the figures for the structure for showing type element substrate；

Figure 26 C are the figures for the structure for showing type element substrate；

Figure 27 A are the figures for showing the relation between the aperture position of The lid component and corresponding gradation of drop-out colour；

Figure 27 B are to exemplify figure when from The lid component with variously-shaped opening；

Figure 28 is the figure for showing the printing device according to the first Application Example；

Figure 29 is the figure for showing the 3rd circulation pattern；

Figure 30 A are the figures for the modified example for showing the fluid ejection head according to the first Application Example；

Figure 30 B are the figures for the modified example for showing the fluid ejection head according to the first Application Example；

Figure 31 is the figure for the modified example for showing the fluid ejection head according to the first Application Example；

Figure 32 is the figure for the modified example for showing the fluid ejection head according to the first Application Example；

Figure 33 is the figure for showing the printing device according to the 3rd Application Example；

Figure 34 is the figure for showing the 4th circulation pattern；

Figure 35 A are the figures for showing the fluid ejection head according to the 3rd Application Example；

Figure 35 B are the figures for showing the fluid ejection head according to the 3rd Application Example；

Figure 36 A are the figures for showing the fluid ejection head according to the 3rd Application Example；

Figure 36 B are the figures for showing the fluid ejection head according to the 3rd Application Example；

Figure 36 C are the figures for showing the fluid ejection head according to the 3rd Application Example.

Embodiment

Hereinafter, the first Application Example and the second Application Example of the present invention is illustrated with reference to the accompanying drawings.

(the first Application Example)

(explanation of ink jet printing device)

Fig. 1 is the figure of the schematic configuration for the liquid discharge apparatus for showing the ejection liquid of the present invention, is to show especially The figure of the schematic configuration of the ink jet printing device (below, also referred to printing device) 1000 printed by spraying ink.Printing Equipment 1000 includes：Supply unit 1, it conveys print media 2；With line (page width formula) fluid ejection head 3, its be arranged to The conveying direction of print media 2 is substantially vertical.Then, printing device 1000 is line printing equipment, its by it is continuous or While conveying print media 2 disconnectedly by ink be ejected on the print media 2 relatively moved and once by when continuously beat Watermark image.Fluid ejection head 3 includes：Vacuum cavitations unit 230, it controls the pressure (negative pressure) in circulating path；Liquid is supplied Unit 220, it connects with vacuum cavitations unit 230 and allowed fluid in fluid supply unit 220 and vacuum cavitations unit 230 Between flow；Fluid connection 111, it is used as the black supply mouth and black outlet of fluid supply unit 220；With housing 80.Beat Print medium 2 is not limited to single-sheet stationery, can also be continuous web media (roll medium).

Fluid ejection head 3 can print coloured image, and liquid by the ink of cyan C, magenta M, yellow Y and black K Body ejecting head 3 is fluidly connected to be used as to supply liquid supplying member, the main reservoir of the feed path of liquid to fluid ejection head 3 With buffer reservoir (referring to Fig. 2 described later on).In addition, to the supply electric power of fluid ejection head 3 and transmitting ejection control signal Control unit be electrically connected to fluid ejection head 3.By the liquid path and electrical signal path in fluid ejection head 3 described later on.

Printing device 1000 is that the liquid for making ink etc. is circulated between reservoir and fluid ejection head 3 described later on Ink jet printing device.Circulation pattern includes：First circulation pattern, in first circulation pattern, liquid positioned at liquid by spraying Lift one's head 3 downstream two circulating pumps (be used for high pressure and low pressure) startup and circulate；With second circulation pattern, followed second In ring mode, liquid is by the startup of two circulating pumps (being used for high pressure and low pressure) positioned at the upstream side of fluid ejection head 3 Circulation.Hereinafter, the first circulation pattern and second circulation pattern of circulation will be illustrated.

(explanation of first circulation pattern)

Fig. 2 is the signal for showing the first circulation pattern suitable for the circulating path of the printing device 1000 of this Application Example Figure.Fluid ejection head 3 is fluidly connected to first circulation pump (high-pressure side) 1001, first circulation pump (low-pressure side) 1002 and buffering is stored up Liquid device 1003.In addition, in fig. 2, for the purpose of simplifying the description, showing for one kind in cyan C, magenta M, yellow Y and black K The path that the ink of color flows through.However, in fact, being provided with following for four kinds of colors in fluid ejection head 3 and printing device main body Endless path.

In first circulation pattern, the ink in main reservoir 1006 is supplied to by buffer reservoir by make-up pump 1005 In 1003, then ink is set to pass through fluid supply unit of the fluid connection 111 to fluid ejection head 3 by second circulation pump 1004 220 supplies.Then, two different negative pressure are being adjusted to by being connected to the vacuum cavitations unit 230 of fluid supply unit 220 While the ink of (high pressure and low pressure) is divided into the two paths with high pressure and low pressure, circulate the ink.In fluid ejection head 3 Ink pass through the first circulation pump (high-pressure side) 1001 and first circulation pump (low-pressure side) positioned at the downstream of fluid ejection head 3 1002 act in fluid ejection head circulates, discharged through fluid connection 111 from fluid ejection head 3 and returned to buffering storage Liquid device 1003.

Main reservoir 1006 is connected to as the buffer reservoir 1003 of secondary reservoir and (is not shown including atmosphere connection port Go out) so that inside and the ft connection of reservoir, it is thus possible to which the bubble in ink is discharged to the outside.Make-up pump 1005 is set Between buffer reservoir 1003 and main reservoir 1006.In ink due to being sprayed when printing acts and aspirated recovery action from liquid 3 ejiction opening of lifting one's head sprays (discharge) and made after ink is consumed, and ink is sent to slow by make-up pump 1005 from main reservoir 1006 Rush reservoir 1003.

Two first circulation pumps 1001 and 1002 draw liquid from the fluid connection 111 of fluid ejection head 3 so that liquid Flow to buffer reservoir 1003.As first circulation pump, the displacement pump with quantitative liquid transfer capability is desired.Specifically Ground, can exemplify tube pump, gear pump, membrane pump and syringe pump.However, for example, can be in the exit arrangement routine of pump The safety valve of permanent flow valve or routine, to ensure predetermined amount of flow (rate).When fluid ejection head 3 is driven, first circulation pump is (high Press side) 1001 and first circulation pump (low-pressure side) 1002 act so that ink with predetermined amount of flow flow through common feed path 211 and altogether With recovery passage 212.Because ink flows by this way, so the temperature of fluid ejection head 3 is maintained at during printing is acted Optimum temperature.Predetermined amount of flow when expecting to be driven fluid ejection head 3 is set equal to or higher than such as down-off：In the flow Under, the temperature difference between type element substrate 10 in fluid ejection head 3 does not influence print quality.

Especially, when setting too high flow, the Negative Pressure Difference between type element substrate 10 can be because of liquid spray unit The influence of the pressure loss of path in 300 and increase, thus cause uneven concentration.Therefore, in view of type element substrate Temperature difference and Negative Pressure Difference between 10, expect to set flow.

Vacuum cavitations unit 230 is arranged in the path between second circulation pump 1004 and liquid spray unit 300.Negative pressure Even if control unit 230 is manipulated into when the flow of ink changes because of the difference of per unit area spray volume in the circulatory system, Also the pressure (that is, the pressure near liquid spray unit 300) in the downstream of vacuum cavitations unit 230 is maintained into pre- level pressure Power.As two negative pressure controls for constituting vacuum cavitations unit 230, any mechanism can be used, as long as can be by negative pressure The Stress control in the downstream of control unit 230 is deviateing in the preset range for expecting setting pressure or smaller.

As an example, the mechanism of so-called " pressure reducing regulator " etc. can be used.In the peripheral passage of this Application Example In, the upstream side of vacuum cavitations unit 230 is pressurizeed by fluid supply unit 220 by second circulation pump 1004.Utilize the structure Make, due to the influence of head pressure of the buffer reservoir 1003 relative to fluid ejection head 3 can be suppressed, beaten so can widen The free degree of the layout of the buffer reservoir 1003 of printing apparatus 1000.

As second circulation pump 1004, turbine pump or displacement pump can be used, as long as pre- when fluid ejection head 3 is driven Determining head pressure (head pressure) or bigger pressure can be presented in the range of used black circular flow.Tool Body, membrane pump can be used.In addition, having necessarily relative to vacuum cavitations unit 230 for example, can also use and be arranged to Head difference head reservoir replace second circulation pump 1004.As shown in Fig. 2 vacuum cavitations unit 230 includes having respectively Two negative pressure regulating mechanisms of different control pressures.In two negative pressure regulating mechanisms, relatively high pressure side is (in fig. 2 with " H " table Show) and relatively low pressure side (in fig. 2 with " L " represent) liquid spray unit 300 is connected to by fluid supply unit 220 respectively Interior common feed path 211 and shared recovery passage 212.

Liquid spray unit 300 be provided with common feed path 211, share recovery passage 212 and with type element substrate The independent path 215 (being independently supplied path 213 and independent recovery passage 214) of connection.Negative pressure control H is connected to shared confession To path 211, negative pressure control L is connected to shared recovery passage 212, and forms pressure difference between two shared paths. Then, because independent path 215 is connected with shared supply passageway 211 and shared recovery passage 212, thus produce as flow down (by The stream that Fig. 2 direction of arrow is represented)：A part for liquid is passed through path in type element substrate 10 from common feed Path 211 flows to shared recovery passage 212.

By this way, liquid spray unit 300 has as flowed down：When liquid flowing is with through common feed path 211 During with shared recovery passage 212, a part for liquid passes through type element substrate 10.Therefore, can be by flowing through common feed The heat produced by type element substrate 10 is discharged to type element substrate 10 by the ink of path 211 and shared recovery passage 212 It is outside.Using the construction, even in balancing gate pit or the ejiction opening for not spraying liquid when by 3 print image of fluid ejection head In, it can also produce the stream of ink.Therefore, it is possible to suppress the change of ink in the way of the black viscosity of retrogradation in ejiction opening to reduce It is thick.Furthermore it is possible to towards shared recovery passage 212 discharge retrogradation black or ink in foreign matter.Therefore, the liquid spray of this Application Example Lifting one's head 3 can be with high speed print high quality images.

(explanation of second circulation pattern)

Fig. 3 be show suitable for the circulating path of the printing device of this Application Example as different from first circulation pattern Circulation pattern second circulation pattern schematic diagram.It is with the main distinction of first circulation pattern, constitutes vacuum cavitations list The Stress control of the upstream side of vacuum cavitations unit 230 is being deviateed expectation setting pressure by two negative pressure controls of member 230 In the preset range of power.In addition, with first circulation pattern another difference is that, second circulation pump 1004 be used as reduction negative pressure control The negative pressure source of the pressure in the downstream of unit 230 processed.In addition, also a difference is, first circulation pump (high-pressure side) 1001 and the One circulating pump (low-pressure side) 1002 is arranged on the upstream side of fluid ejection head 3, and vacuum cavitations unit 230 is arranged in fluid ejection head 3 downstream.

In second circulation pattern, the ink in main reservoir 1006 is supplied to by buffer reservoir by make-up pump 1005 1003.Then, ink is divided into by two paths by the effect for the vacuum cavitations unit 230 being arranged in fluid ejection head 3, and Ink is set to be circulated in the two paths positioned at high-pressure side and low-pressure side.Pass through first circulation pump (high-pressure side) 1001 and first circulation The effect of pump (low-pressure side) 1002, the ink being divided into the two paths of high-pressure side and low-pressure side passes through fluid connection 111 supply to fluid ejection head 3.Then, made by vacuum cavitations unit 230 by first circulation pump (high-pressure side) 1001 and The effect of one circulating pump (low-pressure side) 1002 and fluid ejection head interior circulation ink through fluid connection 111 from liquid spray First 3 discharge.The ink of discharge is set to return to buffer reservoir 1003 by second circulation pump 1004.

In second circulation pattern, even if when flow changes because of the change of per unit area spray volume, vacuum cavitations Unit 230 can also make the pressure change of the upstream side (that is, liquid spray unit 300) of vacuum cavitations unit 230 is stable deviateing In the preset range of predetermined pressure.In the peripheral passage of this Application Example, the downstream of vacuum cavitations unit 230 is supplied by liquid Pressurizeed to unit 220 by second circulation pump 1004.Using the construction, due to buffer reservoir 1003 can be suppressed relative to liquid The influence of the head pressure of body ejecting head 3, is permitted so layout of the buffer reservoir 1003 in printing device 1000 can have More options.

For example, the head liquid storage for being arranged to and there is predetermined head difference relative to vacuum cavitations unit 230 can also be used Device replaces second circulation pump 1004.Same with first circulation pattern, in second circulation pattern, vacuum cavitations unit 230 includes There are two negative pressure controls of different control pressures respectively.In two negative pressure regulating mechanisms, high-pressure side (is used in figure 3 " H " is represented) and low-pressure side (in figure 3 with " L " expression) liquid spray unit is connected to by fluid supply unit 220 respectively Common feed path 211 or shared recovery passage 212 in 300.When by two negative pressure regulating mechanisms by common feed path When 211 pressure is set higher than sharing the pressure of recovery passage 212, is formed from common feed path 211 and pass through independent path The stream of 215 liquid for being routed to shared recovery passage 212 with formation in type element substrate 10.

In the second circulation pattern, it can be obtained and first circulation pattern identical liquid in liquid spray unit 300 Body stream, but with two advantages different from first circulation pattern.As the first advantage, in second circulation pattern, due to Vacuum cavitations unit 230 is arranged in the downstream of fluid ejection head 3, so seldom worrying what is produced by vacuum cavitations unit 230 Foreign matter or waste can influent ejecting heads 3.As the second advantage, in second circulation pattern, liquid is from buffer reservoir 1003 maximums for arriving flow necessary to fluid ejection head 3 are less than the maximum of first circulation pattern.Reason is as follows.

In the case of the circulation in printing holding state, by common feed path 211 and shared recovery passage 212 Flow and it is set as flow A.Flow A value is defined as minimum discharge：To the adjustment liquid spray under printing holding state Lift one's head 3 temperature so that the temperature difference in liquid spray unit 300 fall in expected range necessary to minimum discharge.In addition, The ejection flow obtained when spraying black (spraying state entirely) from all ejiction openings of liquid spray unit 300 is defined as flow F (quantity of ejection frequency × ejiction opening of each ejiction opening spray volume × time per unit).

Fig. 4 is the difference for showing the black influx to fluid ejection head 3 between first circulation pattern and second circulation pattern Different schematic diagram.Fig. 4 part (a) shows the holding state in first circulation pattern, and Fig. 4 part (b) shows first circulation Full ejection state in pattern.Fig. 4 part (c) to part (f) shows second circulation path.Here, Fig. 4 part (c) and Partly (d) shows that flow F is less than flow A situation, and Fig. 4 part (e) and part (f) show that flow F is higher than flow A feelings Condition.By this way, the flow under holding state and full ejection state is shown.

Liquid spray is arranged in the first circulation pump 1001 and first circulation pump 1002 for being respectively provided with quantitative liquid transfer capability Lift one's head 3 downstreams first circulation pattern situation (Fig. 4 part (a) and part (b)) under, first circulation pump 1001 and first The total flow of circulating pump 1002 is flow A.By flow A, can manage in liquid spray unit 300 in the standby state Temperature.Then, in the case of the full ejection state of fluid ejection head 3, first circulation pump 1001 and first circulation pump 1002 Total flow is flow A.However, the maximum stream flow for being supplied to the liquid of fluid ejection head 3 is obtained as follows：By by The effect for the negative pressure that the ejection of fluid ejection head 3 is produced, the full flow F for spraying consumption is added with the flow A of total flow.Thus, Because flow F is added (Fig. 4 part (b)) with flow A, so that the maximum of quantity delivered of fluid ejection head 3 meets flow A + flow F relation.

Meanwhile, the second of the upstream side of fluid ejection head 3 is arranged in first circulation pump 1001 and first circulation pump 1002 It is same with first circulation pattern in the situation (Fig. 4 part (c) to part (f)) of circulation pattern, must to printing holding state The quantity delivered to fluid ejection head 3 needed is flow A.Thus, arranged when in first circulation pump 1001 and first circulation pump 1002 When flow A is higher than flow F (Fig. 4 part (c) and part (d)) in the second circulation pattern of the upstream side of fluid ejection head 3, Under full ejection state to fluid ejection head 3 quantity delivered be flow A it is sufficient that.Now, the discharge of fluid ejection head 3 Flow meets flow A- flows F relation (Fig. 4 part (d)).

However, when flow F is higher than flow A (Fig. 4 part (e) and part (f)), when being supplied under full ejection state Flow can be not enough when the flow of the liquid of fluid ejection head 3 is flow A.Therefore, when flow F is higher than flow A, it is necessary near liquid The quantity delivered of body ejecting head 3 is set as flow F.Now, because the fluid ejection head 3 under full ejection state can consumed flow F, institute The flow of liquid to be discharged from fluid ejection head 3 is almost nil (Fig. 4 (f) part).In addition, if when flow F is higher than stream Liquid is discharged from fluid ejection head 3 not to spray state ejection entirely, then and the liquid for spraying consumed amount is subtracted by flow F during amount A Body.In addition, when flow A and flow F are equal to each other, to the supply flow rate A (or flow F) of fluid ejection head 3, fluid ejection head 3 Consumed flow F.Therefore, the flow discharged from fluid ejection head 3 is almost nil.

By this way, in the case of second circulation pattern, first circulation pump 1001 and first circulation pump 1002 are set The aggregate value of fixed flow, the maximum of i.e. necessary supply flow rate are the big value in flow A and flow F.As long as therefore, using tool There is the liquid spray unit 300 of same configuration, then to maximum (flow A or the stream of quantity delivered necessary to second circulation pattern Measure F) less than the maximum (flow A+ flow F) to supply flow rate necessary to first circulation pattern.

Therefore, in the case of second circulation pattern, improving the free degree of circulating pump applicatory.For example, can make With the circulating pump with simple structure and low cost, or the cooler (not shown) being arranged in main body side path can be reduced Load.Accordingly, there exist the advantage for the cost that can reduce printing device.In flow A or flow F row with relatively large value In formula head, the advantage is significant.Therefore, in line head, the line head with long length direction length is beneficial.

Meanwhile, first circulation pattern is more favourable than second circulation pattern.That is, in second circulation pattern, due to being treated in printing The maximum flow of the liquid of liquid spray unit 300 is flowed through under machine state, so with image (following, also referred to low duty ratio Image (low-duty image)) per unit area spray volume it is less and less, to ejiction opening apply negative pressure more and more higher.For This, when duct width is narrow and during high negative pressure, applies high negative to ejiction opening in the low duty ratio image for easily occur inhomogeneities Pressure.Therefore, worry is along with the quantity of the so-called satellite droplet (satellite droplet) sprayed together with the main drop of ink Increase, print quality may be deteriorated.

Meanwhile, in the case of first circulation pattern, due to when image of the formation with big per unit area spray volume High negative pressure is applied to ejiction opening when (below, also referred to high duty ratio image), even if so when producing many satellite droplets, also depositing In the small advantage of influence of the satellite droplet to image.Specification (the discharging jet of fluid ejection head and printing device main body can considered Passage resistance in amount F, minimal circulation flow A and head) in the case of desirably select two kinds of circulation patterns.

(explanation of the 3rd circulation pattern)

Figure 29 is a circulating path being shown as in the circulating path that is used in the printing device of embodiment The schematic diagram of 3rd circulation pattern.It will omit and first circulation path and second circulation path identical function and saying of constructing It is bright, and will only illustrate difference.

In circulating path, liquid is fed into fluid ejection head 3 from following three position：These three positions include liquid Two positions and a side of fluid ejection head 3 of the central portion of ejecting head 3.Each balancing gate pit is flowed to from common feed path 211 The 23 shared recovery passage 212 of liquid is reclaimed, and is recovered to from the recovery port at the other end positioned at fluid ejection head 3 It is outside.Path 213 is independently supplied to connect with shared supply passageway 211 and shared recovery passage 212, and type element substrate 10 It is arranged on and is independently supplied in the path of path 213 with the balancing gate pit 23 being arranged in type element substrate.Therefore, from first circulation A part for the liquid that pump 1002 flows out is while through balancing gate pit 23 of type element substrate 10 from common feed path 211 Flowed to shared recovery passage 212, and flow (referring to Figure 29 arrow).Because, it is being connected to common feed path 211 pressure adjustmenting mechanism H and it is connected between the pressure adjustmenting mechanism L of shared recovery passage 212 and generates pressure difference, and One circulating pump 1002 is connected only to share recovery passage 212.

By this way, in liquid spray unit 300, the stream of following liquid is generated：Through shared recovery passage 212 Liquid stream, and from common feed path 211 to altogether while through balancing gate pit 23 in each type element substrate 10 The stream of the liquid flowed with recovery passage 212.Therefore, can be while the pressure loss be suppressed, by from common feed path 211 are discharged to the outer of type element substrate 10 to sharing the stream of recovery passage 212 by the heat produced by each type element substrate 10 Portion.In addition, according to circulating path, compared with first circulation path and second circulation path, can reduce and transmit list as liquid The quantity of the pump of member.

(explanation of the construction of fluid ejection head)

By construction of the explanation according to the fluid ejection head 3 of the first Application Example.Fig. 5 A and Fig. 5 B are shown according to this Application Example Fluid ejection head 3 stereogram.Fluid ejection head 3 is line fluid ejection head, wherein on a type element substrate 10 Configuration (linear configurations) can spray cyan C, magenta M, black 15 of four kinds of colors of yellow Y and black K and beat in series Printing elements substrate 10.As shown in Figure 5A, fluid ejection head 3 includes type element substrate 10, signal input terminal 91 and feeder ear Son 92, signal input terminal 91 and power supply terminal 92 pass through flexible PCB 40 and electric wiring substrate 90 and type element substrate 10 It is electrically connected to each other, electric wiring substrate 90 can be to the supply of electrical energy of type element substrate 10.

Signal input terminal 91 and power supply terminal 92 are electrically connected to the control unit of printing device 1000, so as to first to printing The supply of part substrate 10 sprays drive signal and electric power necessary to spraying.Circuit in by electric wiring substrate 90, which is integrated with, matches somebody with somebody During line, the quantity of signal input terminal 91 and power supply terminal 92 can be fewer than the quantity of type element substrate 10.Therefore, reduce The quantity of electric connecting part to be separated when fluid ejection head 3 to be assembled into printing device 1000 or change fluid ejection head.

As shown in Figure 5 B, the fluid connection 111 for being arranged on the two ends of fluid ejection head 3 is connected to printing device 1000 Liquid-supplying system.Therefore, from the feed system of printing device 1000 to fluid ejection head 3 supply include cyan C, magenta M, The ink of four kinds of colors of yellow Y and black K, and reclaimed by the feed system of printing device 1000 through fluid ejection head 3 Ink.In this way it is possible to make the ink of different colours be followed through the path in the path of printing device 1000 and fluid ejection head 3 Ring.

Fig. 6 is to show to constitute the part of fluid ejection head 3 or the exploded perspective view of unit.Liquid spray unit 300, liquid Feed unit 220 and electric wiring substrate 90 are attached to housing 80.It is single that fluid connection 111 (referring to Fig. 3) is arranged on liquid supply In member 220.In addition, in order to remove the foreign matter in supplied ink, different colours are provided in fluid supply unit 220 Filter 221 (referring to Fig. 2 and Fig. 3), while the open communication of filter 221 and connecting portion 111.Correspond respectively to two kinds of colors Two fluid supply units 220 be provided with filter 221.Liquid through filter 221 is fed into and is arranged in liquid The vacuum cavitations unit 230 of feed unit 220, fluid supply unit 220 is arranged to correspond to each color.

Vacuum cavitations unit 230 is the unit for the negative pressure control valve for including different colours.Pass through the spring being disposed therein The function of component or valve, significantly reduces the feed system (position of the printing device 1000 caused by the change of the flow of liquid Feed system in the upstream side of fluid ejection head 3) in the pressure loss change.Therefore, vacuum cavitations unit 230 can make Negative pressure variation positioned at the downstream (side of liquid spray unit 300) of vacuum cavitations unit 230 is stable within a predetermined range.As schemed Described in 2, vacuum cavitations unit 230 is built-in with two negative pressure control valves of different colours.Two negative pressure control valves are individually set For different control pressures.Here, high-pressure side and the shared confession in liquid spray unit 300 are made by fluid supply unit 220 Connected to path 211 (referring to Fig. 2) and low-pressure side is connected with shared recovery passage 212 (referring to Fig. 2).

Housing 80 includes liquid spray unit support section 81 and electric wiring substrate supporting part 82, and housing 80 is in support Ensure the rigidity of fluid ejection head 3 while liquid spray unit 300 and electric wiring substrate 90.Electric wiring substrate supporting part 82 is used In the electric wiring substrate 90 of support and liquid spray unit supporting part 81 is fixed to by screw.Liquid spray unit supporting part 81 is used Warpage or deformation in correction liquid spray unit 300, to ensure the relative positional accuracy between type element substrate 10.Cause This, it is suppressed that the striped and inhomogeneities of print media.

For this reason, it may be desirable to which liquid spray unit supporting part 81 has enough rigidity.As material, be contemplated to be such as SUS or The ceramics of the metal or aluminum oxide of aluminium etc. etc..Liquid spray unit supporting part 81 is provided with to be inserted for joint rubber 100 Opening 83 and 84.The liquid supplied from fluid supply unit 220 is directed into through joint rubber constitutes liquid spray unit 300 third path component 70.

Liquid spray unit 300 includes multiple ejection modules 200 and passage member 210, and cover component 130 is attached to liquid spray The face being located near print media gone out in unit 300.Here, cover component 130 be it is as shown in Figure 6 have phase frame-shaped surface and The component of elongated opening 131 is provided with, and is included in the type element substrate 10 and containment member 110 sprayed in module 200 (referring to Figure 10 A described later on) exposes from opening 131.The periphery frame portion of opening 131 is used as covering under printing holding state The contact surface of the cover component of fluid ejection head 3.For this reason, it may be desirable to pass through periphery coating adhesive, encapsulant along opening 131 The closing space formed with packing material under the state that covers, with recessed in the ejection port face of liquid filling body spray unit 300 Convex or gap.

Next, will illustrate to include the construction of the passage member 210 in liquid spray unit 300.As shown in fig. 6, logical Road component 210 is obtained by being laminated the first passage member 50, alternate path component 60 and third path component 70, and path Component 210 distributes the liquid supplied from fluid supply unit 220 to ejection module 200.In addition, passage member 210 is made from spray The liquid for going out the recycling of module 200 returns to the passage member of fluid supply unit 220.Passage member 210 is fixed to by screw Liquid spray unit supporting part 81, thus inhibit warpage or the deformation of passage member 210.

Fig. 7 part (a) to part (f) is to show the first passage member to the front and back of third path component Figure.Fig. 7 part (a) shows the face for spraying the installation of module 200 in the first passage member 50, and Fig. 7 part (f) is shown The face that the supporting part of spray unit for liquid 81 in third path component 70 is contacted.First passage member 50 and alternate path structure Part 60 with cause Fig. 7 part (b) and part (c) shown in and corresponding to passage member contact surface part it is facing with each other Mode is engaged with each other, and alternate path component and third path component are shown in Fig. 7 part (d) and part (e) and right to cause Mode that should be facing with each other in the part of the contact surface of passage member is engaged with each other.When alternate path component 60 and third path structure When part 70 is engaged with each other, extend along the length direction of passage member eight are formed by the shared path groove 62 and 71 of passage member Individual shared path (211a, 211b, 211c, 211d, 212a, 212b, 212c, 212d).

Therefore, the group of common feed path 211 and shared recovery passage 212 is formed in path structure with corresponding to each color In part 210.Ink is supplied from common feed path 211 to fluid ejection head 3, and supply is reclaimed by sharing recovery passage 212 To the ink of fluid ejection head 3.The connected entrance 72 (referring to Fig. 7 part (f)) of third path component 70 and the hole of joint rubber 100 Connection, and the connected entrance 72 is fluidly connected to fluid supply unit 220 (referring to Fig. 6).Sharing for alternate path component 60 is logical The bottom surface of road groove 62 is provided with multiple connected entrances 61 and (the connected entrance 61-1 that is connected with shared supply passageway 211 and reclaimed with shared The connected entrance 61-2 that path 212 is connected) and connected with one end of the independent path groove 52 of the first passage member 50.First path structure The other end of the independent path groove 52 of part 50 is provided with connected entrance 51, and is fluidly connected to ejection module by connected entrance 51 200.By independent path groove 52, path can densely be arranged on the center side of passage member.

Expect the first passage member to third path component by the corrosion resistance with relative to liquid and with low linear The material of the coefficient of expansion is formed.For example, can be suitably used by the way that the inorganic of fiber or silicon dioxide microparticle etc. is filled out Material is added to aluminum oxide, LCP (liquid crystal polymer), PPS (polyphenylene sulfide), PSF (polysulfones) or MODIFIED PP E (polyphenylene oxide) etc. Base material and the composite (resin) that obtains as material.Three passage members bonding that is stacked on one another can be made logical as being formed The method of road component 210.When selecting resin composite materials as material, the joint method using welding can be used.

Fig. 8 is enlarged fragmentary perspective when from the face for spraying the installation of module 200 in the first passage member 50 Figure, the close up perspective view shows the part α of Fig. 7 part (a), and shows by making the first passage member to the Three-way component be engaged with each other formed by path in passage member 210.To cause common feed path 211 and share recovery The mode that path 212 is alternately arranged from the path at two ends forms common feed path 211 and shared recovery passage 212.Here, Annexation between the path that will illustrate in passage member 210.

Passage member 210 be provided with along fluid ejection head 3 length direction extension common feed path 211 (211a, 211b, 211c, 211d) and shared recovery passage 212 (212a, 212b, 212c, 212d) and it is arranged for each color.By The path 213 (213a, 213b, 213c, 213d) that is independently supplied of the formation of independent path groove 52 is connected to difference by connected entrance 61 The common feed path 211 of color.In addition, formed by independent path groove 52 independent recovery passage 214 (214a, 214b, 214c, 214d) the shared recovery passage 212 of different colours is connected to by connected entrance 61.Using the passway structure, ink can be made Passed through from common feed path 211 and be independently supplied the concentrated supply of path 213 to the type element of the central portion positioned at passage member Substrate 10.Reclaimed furthermore it is possible to be reached from type element substrate 10 through independent recovery passage 214 and share the ground of recovery passage 212 Ink.

Fig. 9 is the sectional view along Fig. 8 line IX-IX interceptions.Independent recovery passage (214a, 214c) passes through connected entrance 51 Connected with spraying module 200.In fig .9, independent recovery passage (214a, 214c) is illustrate only, but in different cross sections In, communicated with each other as shown in figure 8, being independently supplied path 213 and spraying module 200.It is included in the support in each ejection module 200 Component 30 and type element substrate 10 are provided with such as underpass：Ink is supplied to be arranged on and beaten by the path from the first passage member 50 Type element 15 in printing elements substrate 10.In addition, supporting member 30 and type element substrate 10 are provided with such as underpass：This leads to Road is fed into the part or all of recovery (recycling) of the liquid of type element 15 to the first passage member 50.

Here, the common feed path 211 of each color is connected to the negative pressure control of corresponding color by fluid supply unit 220 Unit 230 (high-pressure side) processed, it is (low that shared recovery passage 212 is connected to vacuum cavitations unit 230 by fluid supply unit 220 Press side).By vacuum cavitations unit 230, pressure difference (pressure is produced between common feed path 211 and shared recovery passage 212 Difference).Therefore, as shown in Figure 8 and Figure 9, in the fluid ejection head of this Application Example with the path being connected to each other, with each color Common feed path 211, be independently supplied path 213, type element substrate 10, independent recovery passage 214 and share and reclaim logical The order on road 212 produces stream.

(explanation for spraying module)

Figure 10 A are the stereograms for showing an ejection module 200, and Figure 10 B are the exploded views of the ejection module 200.As The method that manufacture sprays module 200, type element substrate 10 and flexible PCB 40 first, be adhered to and be provided with fluid connection On the supporting member 30 of mouth 31.Then, by making wire bonding by the terminal 16 and flexible PCB on type element substrate 10 Terminal 41 on 40 is electrically connected to each other, and passes through the sealing wire junction surface (electrical connection section) of containment member 110.

The terminal 42 opposite with type element substrate 10 of flexible PCB 40 is electrically connected to the connection of electric wiring substrate 90 Terminal 93 (referring to Fig. 6).Because supporting member 30 is used as the supporter of support type element substrate 10 and makes type element substrate 10 passage members being in fluid communication with each other with passage member 210, type element substrate is being engaged to it is desirable to supporting member When there is high flatness and sufficiently high reliability.For example, it is desirable to which aluminum oxide or resin are used as material.

(explanation of the structure of type element substrate)

Figure 11 A are the top views for showing the face for being provided with ejiction opening 13 in type element substrate 10, and Figure 11 B are figures 11A part A enlarged drawing, Figure 11 C are the top views at the back side for showing Figure 11 A.Here, the printing member of this Application Example will be illustrated The construction of part substrate 10.As shown in Figure 11 A, the ejiction opening formation component 12 of type element substrate 10 is provided with corresponding to different face The black four row ejiction openings row of color.In addition, the bearing of trend that the ejiction opening of ejiction opening 13 is arranged is referred to as " ejiction opening column direction ".Such as Shown in Figure 11 B, the type element 15 as the ejection energy generating element that liquid is sprayed by heat energy is arranged on corresponding to each At the position of ejiction opening 13.The balancing gate pit 23 being arranged in type element 15 is divided by partition wall 22.

Type element 15 is electrically connected to terminal 16 by the electric wire (not shown) being arranged in type element substrate 10.In Be, based on via electric wiring substrate 90 (referring to Fig. 6) and flexible PCB 40 (referring to Figure 10 B) from the control of printing device 1000 The pulse signal of circuit input, type element 15 is heated while making liquid boiling.Liquid passes through the hair by boiling generation Bubble power sprays from ejiction opening 13.As shown in Figure 11 B, liquid supply path 18 is listed in side extension along each ejiction opening, and liquid is returned Receive path 19 and be listed in opposite side extension along the ejiction opening.Liquid supply path 18 and liquids recovery path 19 be along be arranged on beat The path of ejiction opening column direction extension in printing elements substrate 10, and pass through supply mouth 17a and recovery port 17b and ejiction opening 13 Connection.

As shown in Figure 11 C, the The lid component 20 of sheet is layered in the face for being provided with ejiction opening 13 in type element substrate 10 The back side on, and The lid component 20 is provided with the multiple openings 21 connected with liquid supply path 18 and liquids recovery path 19. In this Application Example, The lid component 20 is provided with for three openings 21 of each liquid supply path 18 and for each liquids recovery road Two openings 21 in footpath 19.As shown in Figure 11 B, the opening 21 of The lid component 20 connects with the connected entrance 51 shown in Fig. 7 part (a) It is logical.

It is expected that The lid component 20 has the corrosion resistance enough to liquid.From the viewpoint of colour mixture is prevented, opening 21 is opened Mouth-shaped and aperture position are needed with high precision.For this reason, it may be desirable to be used as lid by using photoresist material or silicon plate The material of component 20 simultaneously forms opening 21 using photoetching process.By this way, The lid component 20 changes path by opening 21 Pitch.Here, it is contemplated that the pressure loss, it is expected that by the membrane-like member formation The lid component 20 with minimal thickness.

Figure 12 is the cutting when the line XII-XII interceptions along Figure 11 A for showing type element substrate 10 and The lid component 20 The stereogram in face.Here, flowing of the liquid in type element substrate 10 will be illustrated.The lid component 20 is used as in type element substrate The lid of a part for liquid supply path 18 and the wall in liquids recovery path 19 is formed in 10 substrate 11.Type element substrate 10 The substrate 11 that is formed by being laminated by Si and component 12 being formed by the ejiction opening that photoresist is formed and is formed, The lid component 20 connects Close the back side of substrate 11.One face of substrate 11 is provided with type element 15 (referring to Figure 11 B), and the back side of substrate 11 is provided with Form the liquid supply path 18 that extension is arranged along ejiction opening and the groove in liquids recovery path 19.

The liquid supply path 18 and liquids recovery path 19 formed by substrate 11 and The lid component 20 is connected respectively to each logical Common feed path 211 and shared recovery passage 212 in road component 210, and in liquid supply path 18 and liquids recovery Pressure difference is produced between path 19.When liquid is sprayed with print image from ejiction opening 13, lead at the ejiction opening for not spraying liquid The liquid that over-pressed official post is arranged on inside the liquid supply path 18 in substrate 11 passes through supply mouth 17a, balancing gate pit 23 and reclaimed Mouth 17b flows (referring to Figure 12 arrow C) towards liquids recovery path 19.By the flowing, liquids recovery path can be passed through 19 reclaim in the ejiction opening 13 of printing action or balancing gate pit 23 is not related to by the retrogradation evaporating and produce from ejiction opening 13 Ink, foreign matter and bubble.Furthermore it is possible to suppress the black retrogradation of ejiction opening 13 or balancing gate pit 23.

The liquid for being recovered to liquids recovery path 19 passes through the opening 21 of The lid component 20 and the fluid connection of supporting member 30 31 (referring to Figure 10 B) of mouth are with connected entrance 51 (referring to Fig. 7 part (a)), the and of independent recovery passage 214 in passage member 210 The order for sharing recovery passage 212 is recovered.Then, the recovery path withdrawal liquid of printing device 1000 is passed through.That is, from printing The liquid that equipment body is supplied to fluid ejection head 3 flows to be supplied to and reclaim in the following order.

First, fluid connection 111 influent ejecting head 3 of the liquid from fluid supply unit 220.Then, liquid according to It is secondary to pass through joint rubber 100, the connected entrance 72 being arranged in third path component and shared path groove 71, be arranged on alternate path Shared path groove 62 and connected entrance 61 in component and the independent path groove 52 and connected entrance being arranged in the first passage member 51 are supplied to.Then, liquid is sequentially passing through the fluid connection mouthful 31 being arranged in supporting member 30, is being arranged in The lid component 20 Opening 21 and the liquid supply path 18 and supply mouth 17a that are arranged in substrate 11 in the case of be fed into balancing gate pit 23。

In the liquid for being supplied to balancing gate pit 23, the liquid not sprayed from ejiction opening 13, which is flowed successively through, to be arranged in substrate 11 Recovery port 17b and liquids recovery path 19, the opening 21 being arranged in The lid component 20 and the liquid being arranged in supporting member 30 Body connected entrance 31.Then, liquid flows successively through the connected entrance 51 being arranged in the first passage member and independent path groove 52, set Connected entrance 61 and shared path groove 62 in alternate path component, the shared path groove 71 being arranged in third path component 70 With connected entrance 72 and joint rubber 100.Then, liquid from the fluid connection 111 being arranged in fluid supply unit 220 to The flows outside of fluid ejection head 3.

In the first circulation pattern shown in Fig. 2, the liquid flowed out from fluid connection 111 passes through vacuum cavitations unit 230 supply to joint rubber 100.In addition, in the second circulation pattern shown in Fig. 3, the liquid reclaimed from balancing gate pit 23 is passed through Joint rubber 100, and the flows outside by vacuum cavitations unit 230 from fluid connection 111 to fluid ejection head.From liquid Whole liquid of one end outflow of the common feed path 211 of body spray unit 300 be not passed through being independently supplied path 213a to Balancing gate pit 23 is supplied.

That is, liquid can flow from the other end of common feed path 211 to fluid supply unit 220, and be supplied from shared The liquid that one end to path 211 is flowed out, which is not flowed into, is independently supplied path 213a.By this way, because path is configured to make Liquid flows through the path in the case where being not passed through type element substrate 10, so including in such as this Application Example has In the type element substrate 10 of the big path of small flow resistance, it can also suppress the adverse current of the recycle stream of liquid.By this way, due to The retrogradation of the liquid near ejiction opening or balancing gate pit 23 can be suppressed in the fluid ejection head 3 of this Application Example, so can press down System sliding does not spray.As a result, it is possible to print high-quality image.

(explanation of the position relationship between type element substrate)

Figure 13 is the close-up top view for showing two adjacent adjacency sections for spraying the type element substrate in module. In this Application Example, the type element substrate of almost parallel quadrangle is used.Configuration has spray in each type element substrate 10 The ejiction opening row (14a to 14d) of outlet 13 are arranged in the predetermined angular of the length direction with relative to fluid ejection head 3 While tilt.Then, the ejiction opening row at the adjacency section between type element substrate 10 are formed so that at least one sprays Outlet is overlapping on print media conveying direction.As shown in figure 13, two ejiction openings on line D overlap each other.

Using the configuration, even if when the position of type element substrate 10 is offset slightly from precalculated position, by making ejiction opening Overlapping drive control can not see the black streaking or missing of print image.Even if when type element substrate 10 is with rectilinear form It is defeated in the print media for suppressing fluid ejection head 3 by the construction shown in Figure 13 when (linearity configuration) rather than meander-shaped are arranged While sending the length increase on direction, also cope with the black streaking at the connecting portion between type element substrate 10 or lack Lose.In addition, in this Application Example, the principal plane of type element substrate has a parallelogram shape, but the invention is not restricted to This.Even if for example, when using with rectangular shape, trapezoidal shape and other shapes of type element substrate, can also expect Ground uses construction of the invention.

(explanation of the modified example of the structure of fluid ejection head)

By the modified example of the construction of the fluid ejection head shown in explanation Figure 28 and Figure 30 A to Figure 32.Will omit pair with it is above-mentioned Example identical constructs the explanation with function, and only will mainly illustrate difference.In modified example, such as Figure 28, Figure 30 A and figure Shown in 30B, the centralized arrangement of fluid connection 111 between fluid ejection head 3 and outside is on the length direction of fluid ejection head A side.Another side of the centralized arrangement of vacuum cavitations unit 230 in fluid ejection head 3 (referring to Figure 31).Belong to liquid spray Lift one's head 3 fluid supply unit 220 be configured to corresponding to fluid ejection head 3 length long units, and including distinguish Corresponding to the path and filter 221 of four kinds of liquid to be supplied.As shown in figure 31, it is arranged on liquid spray unit supporting part 81 The position of the opening 83 to 86 at place is also located at the positions different from fluid ejection head 3.

Figure 32 shows the laminated arrangement of passage member 50,60 and 70.Type element substrate 10 is linearly configured at logical The upper surface of the passage member 50 of the superiors in road component 50,60 and 70.As with being formed in each type element substrate 10 The path that the opening 21 (referring to Figure 19 A and Figure 19 B) of rear side is connected, two are independently supplied path 213 and an independent recovery Path 214 is arranged for the liquid of each color.Therefore, as the lid formed at the back side for being arranged at type element substrate 10 The opening 21 of component 20, two supply openings 21 and a recovery opening 21 are arranged for the liquid of each color.Such as Figure 32 Shown, the common feed path 211 and shared recovery passage 212 extended along the length direction of fluid ejection head 3 is alternately configured.

(the second Application Example)

Hereinafter, illustrate to be sprayed according to the ink jet printing device 2000 and liquid of the second Application Example of the present invention with reference to the accompanying drawings First 2003 construction.In the following description, by the difference of only explanation and the first Application Example, and it will omit and the first Application Example phase The explanation of same part.

(explanation of ink jet printing device)

Figure 21 is to show the figure for being used to spray the ink jet printing device 2000 of liquid according to this Application Example.This Application Example Printing device 2000 and the difference of the first Application Example are, coloured image is printed on the print medium by being constructed as below：At this In construction, cyan C, magenta M, yellow Y are corresponded respectively to parallel with the black four monochrome fluid ejection head 2003 of black K Ground is arranged.In the first Application Example, the columns that can be used in a kind of ejiction opening row of color is a row.However, in this Application Example In, the columns that can be used in a kind of ejiction opening row of color is 20 row.Therefore, when to multiple ejiction openings row, suitably distribution is beaten Printing according to this print image when, can be with higher speed print image.

Even if in addition, when there is the ejiction opening for not spraying liquid, liquid also can be from positioned in print media conveying direction On the position corresponding to non-ejiction opening at the ejiction openings of other row addedly spray.Improve reliability, it is thus possible to suitable Locality printing commercial graphic.It is same with the first Application Example, the feed system of printing device 2000, buffer reservoir 1003 (referring to Fig. 2 and Fig. 3) and main reservoir 1006 (referring to Fig. 2 and Fig. 3) be fluidly connected to fluid ejection head 2003.In addition, being sprayed to liquid First 2003 transmission electric power and the electric control unit of ejection control signal are electrically connected to fluid ejection head 2003.

(explanation of circulating path)

It is same with the first Application Example, the first circulation pattern shown in Fig. 2 or Fig. 3 and second circulation pattern conduct can be used Liquid circulation pattern between printing device 2000 and fluid ejection head 2003.

(explanation of the structure of fluid ejection head)

Figure 14 A and 14B are the stereograms for showing the fluid ejection head 2003 according to this Application Example.Here, basis will be illustrated The structure of the fluid ejection head 2003 of this Application Example.Fluid ejection head 2003 is ink-jet line (page width formula) printhead, and it includes The 16 type element substrates 2010 linearly arranged on the length direction of fluid ejection head 2003, and one can be passed through Plant liquid print image.Same with the first Application Example, fluid ejection head 2003 includes fluid connection 111, signal input terminal 91 and power supply terminal 92.However, because the fluid ejection head 2003 of this Application Example compared with the first Application Example includes many spray Mouthful row, so inputting a signal into terminal 91 and power supply terminal 92 is arranged in the both sides of fluid ejection head 2003.Because, it is necessary to Reduce voltage reduction or signal transferring lag caused by the wiring part being arranged in type element substrate 2010.

Figure 15 is the strabismus decomposition figure for showing fluid ejection head 2003, show constitute fluid ejection head 2003 according to work( Can divided part or unit.Liquid communication order in each unit and the function or fluid ejection head of component is applicable with first Example is substantially likewise, but ensure that the rigid function of fluid ejection head is different.In the first Application Example, mainly pass through liquid Body spray unit supporting part 81 ensures the rigidity of fluid ejection head, but in the fluid ejection head 2003 of second Application Example, The rigidity of fluid ejection head is ensured by the alternate path component 2060 being included in liquid spray unit 2300.

The liquid spray unit supporting part 81 of this Application Example is connected to the two ends of alternate path component 2060, and liquid sprays Go out unit 2300 and be mechanically connected to the balladeur train of printing device 2000 so that fluid ejection head 2003 is positioned.The electric He of wiring substrate 90 Fluid supply unit 2220 including vacuum cavitations unit 2230 is connected to liquid spray unit supporting part 81.Two liquid supplies Each fluid supply unit 2220 in unit 2220 includes built-in filter (not shown).

Two vacuum cavitations units 2230 are configured to different and relatively high and low vacuum cavitations pressure.In addition, As shown in Figure 14 B and Figure 15, when the vacuum cavitations unit 2230 of high-pressure side and low-pressure side is arranged on into fluid ejection head 2003 During two ends, the stream of the liquid in the common feed path and shared recovery passage that extend along the length direction of fluid ejection head 2003 Toward each other.In this configuration, the heat exchange between common feed path and shared recovery passage is promoted, thus reduces two Temperature difference in individual shared path.It therefore reduces the temperature difference of the type element substrate 2010 set along shared path.Knot Really, have the advantages that not allowing to be also easy to produce to print uneven caused by temperature difference.

Next, by illustrate liquid spray unit 2300 passage member 2210 detailed configuration.As shown in figure 15, path Component 2210 is obtained by being laminated the first passage member 2050 and alternate path component 2060, and passage member 2210 will be from The liquid that fluid supply unit 2220 is supplied is assigned to ejection module 2200.Passage member 2210 is used as making from ejection module 2200 The liquid of recycling returns to the passage member of fluid supply unit 2220.The alternate path component 2060 of passage member 2210 is Following passage member：It is formed with common feed path and shared recovery passage and improves the rigidity of fluid ejection head 2003.For This, expect the material of alternate path component 2060 has enough corrosion resistances and with high mechanical strength relative to liquid. Specifically, SUS, Ti or aluminum oxide can be used.

Figure 16 part (a) is to show the figure for spraying the face that module 2200 is installed in the first passage member 2050, figure 16 part (b) is the figure in the face for the back side and contact alternate path component 2060 for showing the first passage member 2050.With first Application Example is different, and first passage member 2050 of this Application Example, which has, to be constructed as below：In this configuration, multiple components are by adjacently It is arranged to correspond respectively to spray module 2200.By using the segmenting structure, multiple modules can be to spray corresponding to liquid The mode of first 2003 length is configured.Therefore, the structure can particularly well use with for example with B2 or more large scale The corresponding relatively long fluid ejection head of sheet material in.

As shown in Figure 16 part (a), the connected entrance 51 of the first passage member 2050 is in fluid communication with spraying module 2200. As shown in Figure 16 part (b), the connected entrance of the independent communication mouthful 53 and alternate path component 2060 of the first passage member 2050 61 are in fluid communication.Figure 16 part (c) shows the contact surface relative to the first passage member 2050 of alternate path component 60, Figure 16 part (d) shows the section of the central portion on the thickness direction of alternate path component 60, and Figure 16 part (e) is to show Go out the figure of the contact surface relative to fluid supply unit 2220 of alternate path component 2060.The connection of alternate path component 2060 Mouthful or the function of path and each color of the first Application Example be same.The shared path groove 71 of alternate path component 2060 is by shape It is the common feed path 2211 shown in Figure 17 as the side for causing shared path groove 71, opposite side is to share recovery passage 2212.These paths respectively along fluid ejection head 2003 length direction set so that liquid from one end of these paths to The other end is supplied.The difference of this Application Example and the first Application Example is, common feed path 2211 and shared recovery passage 2212 In liquid flow direction it is opposite each other.

Figure 17 is the perspective view for showing the liquid annexation between type element substrate 2010 and passage member 2210.Edge A pair of the common feed paths 2211 and shared recovery passage 2212 of the length direction extension of fluid ejection head 2003 are arranged on logical In road component 2210.The connected entrance 61 of alternate path component 2060 is connected to the independent communication mouthful 53 of the first passage member 2050, So that both positions match each other, connection is passed through so as to form from the common feed path 2211 of alternate path component 2060 The liquid supply passageways that mouth 61 is connected with the connected entrance 51 of the first passage member 2050.Similarly, it yet forms both from alternate path The connected entrance 72 of component 2060 is by sharing the liquid that recovery passage 2212 is connected with the connected entrance 51 of the first passage member 2050 Feed path.

Figure 18 is the sectional view of the interception along Figure 17 line XVIII-XVIII.Common feed path 2211 passes through connection Mouth 61, independent communication mouth 53 and connected entrance 51 are connected to ejection module 2200.Although not shown in figure 18, it should be apparent that , share recovery passage 2212 and be connected to ejection module 2200 by the same paths in Figure 17 different cross section.With One Application Example is same, sprays module 2200 and type element substrate 2010 is provided with the path connected with each ejiction opening, thus Can make supply liquid it is part or all of through being recycled in the state of the ejiction opening for not performing spray action.This Outside, same with the first Application Example, by fluid supply unit 2220, common feed path 2211 is connected to vacuum cavitations unit 2230 (high-pressure sides), share recovery passage 2212 and are connected to vacuum cavitations unit 2230 (low-pressure side).Thus, to be made by pressure difference The side that balancing gate pit of the liquid from common feed path 2211 through type element substrate 2010 is flowed to shared recovery passage 2212 Formula formation stream.

(explanation for spraying module)

Figure 19 A are the stereograms for showing an ejection module 2200, and Figure 19 B are the decomposition for showing the ejection module 2200 Figure.Difference with the first Application Example is that terminal 16 is arranged on the ejiction opening column direction of type element substrate 2010 Both sides (long leg of type element substrate 2010).Therefore, two flexible PCBs of type element substrate 2010 are electrically connected to 40 are arranged to each type element substrate 2010.Because the columns for the ejiction opening row being arranged in type element substrate 2010 is 20 row, so ejiction opening row are arranged more than eight row ejiction openings of the first Application Example.Here, due to shortening from terminal 16 to printing The ultimate range of element, so the voltage reduced in the wiring part produced in type element substrate 2010 is reduced or signal prolongs Late.In addition, the fluid connection mouthful 31 of supporting member 2030 is arranged along the whole ejiction opening being arranged in type element substrate 2010 Opening.Other constructions are same with the first Application Example.

(explanation of the structure of type element substrate)

Figure 20 part (a) is the schematic diagram for showing the face for being disposed with ejiction opening 13 in type element substrate 2010, figure 20 part (c) is the schematic diagram at the back side in the face for the part (a) for showing Figure 20.Figure 20 part (b) is to show to work as to be arranged on Type element substrate in the case that the The lid component 2020 at the back side of the type element substrate 2010 in Figure 20 part (c) is removed The schematic diagram in 2010 face.As shown in Figure 20 part (b), liquid supply path 18 and liquids recovery path 19 are in type element It is alternately arranged at the back side of substrate 2010 along ejiction opening column direction.

The columns of ejiction opening row is more than the columns that the ejiction opening of the first Application Example is arranged.However, the essence with the first Application Example Difference is that terminal 16 is arranged on the both sides on the ejiction opening column direction of type element substrate as described above.Basic structure with First Application Example is same, wherein each ejiction opening row are respectively provided with a pair of liquid supply paths 18 and liquids recovery path 19, and covers Component 2020 is provided with the opening 21 connected with the fluid connection mouthful 31 of supporting member 2030.

(the 3rd Application Example)

Ink jet printing device 1000 and the construction of fluid ejection head 3 according to the 3rd Application Example of the invention will be illustrated.The The fluid ejection head of three Application Examples is sprayed by the page width formula liquid of single pass print image on the print media of B2 sizes Lift one's head.Because the 3rd Application Example is identical with the second Application Example in many aspects, so will mainly illustrate in the following description and the The difference of two Application Examples, and the explanation constructed with the second Application Example identical will be omitted.

(explanation of ink jet printing device)

Figure 33 is the schematic diagram for showing the ink jet printing device according to this Application Example.Printing device 1000 has following structure Make：In this configuration, the liquid that image is not sprayed from fluid ejection head 3 directly printing is on the print medium.

That is, first liquid is ejected into intermediate transfer member (intermediate transfer drum 1007) to be formed in intermediate transfer member Image, and transfer images to print media 2.In printing device 1000, the ink of four kinds of colors (CMYK) is corresponded respectively to Fluid ejection head 3 arranged along intermediate transfer drum 1007 with circular shape.Therefore, colour is performed in intermediate transfer member to beat Print processing, suitably dries the image of printing in intermediate transfer member, and is transferred images to for transfer section 1008 The print media 2 conveyed by sheet material conveying roller 1009.The sheet transport system of second Application Example is mainly used in defeated in the horizontal direction Send cutting sheet material.However, this Application Example can also be applied to the continuous sheet supplied from home roll (not shown).In the drum delivery system In system, due to being feeding sheets while predetermined tension is applied to sheet material, so under flying print action also almost Do not occur conveying obstruction.Therefore, the reliability of equipment is improved, thus the equipment is suitable to Commercial print purpose.It is applicable with first Example and the second Application Example are same, and feed system, buffer reservoir 1003 and the fluid of main reservoir 1006 of printing device 1000 connect It is connected to each fluid ejection head 3.In addition, the electric control unit for transmitting ejection control signal and electric power to fluid ejection head 3 is electrically connected It is connected to each fluid ejection head 3.

(explanation of the 4th circulation pattern)

Same with the second Application Example, the second circulation path shown in first circulation path or Fig. 3 shown in Fig. 2 can also be used Make the liquid circulation path between the reservoir of fluid ejection head 3 and printing device 1000, but the circulating path shown in Figure 34 It is desired.It is that by-passing valve 1010 is additionally arranged to and first circulation with the main distinction in Fig. 3 second circulation path Each communication of pump 1001 and 1002 and second circulation pump 1004.By-passing valve 1010 has when pressure exceedes predetermined pressure The function (the first function) of the upstream pressure of by-passing valve 1010 is reduced by opening valve.In addition, by-passing valve has by coming from The signal of the control base board of printing device main body opens and closes the function (the second function) of valve at any time.

By the first function, the pressure that can suppress big or small be applied to first circulation pump 1001 and 1002 downstream or The upstream side of second circulation pump 1004.For example, when the function of first circulation pump 1001 and 1002 is not normally functioning, existing big Flow or pressure be likely to be applied to the situation of fluid ejection head 3.Therefore, worry that liquid may be from the ejection of fluid ejection head 3 Each bonding part in mouth leakage or fluid ejection head 3 may be broken.However, by-passing valve is added when as in this Application Example During to first circulation pump 1001 and 1002, if big pressure turns on by-passing valve 1010.Therefore, because liquid path is to each The upstream side of circulating pump is opened, so can suppress above mentioned problem.

In addition, when circulating drive actions and stopping, in first circulation pump 1001 and 1002 and second circulation pump 1004 After action stops, by control signal of second function based on printing device main body, all by-passing valves 1010 are opened rapidly.Cause This, can discharge at the downstream portion of fluid ejection head 3 (between vacuum cavitations portion 230 and second circulation pump 1004) in a short time High negative pressure (such as several kPa to tens kPa).When using the displacement pump of membrane pump etc. as circulating pump, check-valves leads to Often it is built in pump.However, when by-passing valve is opened, additionally it is possible to discharge fluid ejection head 3 from the buffer reservoir 1003 in downstream Pressure at downstream portion.Although can be only from the pressure at the downstream portion that upstream side discharges fluid ejection head 3, the pressure loss It is present in the path in the upstream passages and fluid ejection head of fluid ejection head.Therefore, due to one can be spent when pressure is released A little times, so the internal pressure of the shared path in fluid ejection head 3 can be reduced excessively moment.Therefore, ejiction opening is worried Meniscus may rupture.However, due to the downstream when fluid ejection head 3 by-passing valve 1010 open when, fluid ejection head Downstream pressure is further discharged, so reducing the risk of the meniscus rupture of ejiction opening.

(explanation of the structure of fluid ejection head)

By structure of the explanation according to the fluid ejection head 3 of the 3rd Application Example of the present invention.Figure 35 A are to show to be applicable according to this The stereogram of the fluid ejection head 3 of example, Figure 35 B are the exploded perspective views of fluid ejection head 3.Fluid ejection head 3 is ink-jet page width Formula printhead, it includes 36 printings arranged along the length direction of fluid ejection head 3 with rectilinear form (linearity configuration) Device substrate 10 simultaneously passes through a kind of color print image.Same with the second Application Example, fluid ejection head 3 includes backplate 132, backplate 132 also protect the rectangle sides of head in addition to protection signal input terminal 91 and power supply terminal 92.

Figure 35 B are the strabismus decomposition figures for showing fluid ejection head 3, show constitute fluid ejection head 3 according to function quilt The part or unit (not shown backplate 132) of segmentation.Liquid circulation order in the function or fluid ejection head 3 of unit and component It is identical with the second Application Example.It is with the main distinction of the second Application Example, separated electric wiring substrate 90 and vacuum cavitations unit 230 are arranged in diverse location, and the first passage member has different shape.Such as in this Application Example, for example, with correspondence In the case of the fluid ejection head 3 of the length of the print media of B2 sizes, the power that fluid ejection head 3 is consumed is big, thus sets Put eight electric wiring substrates 90.It is attached to the two sides of the elongated electric wiring substrate supporting part 82 of liquid spray unit supporting part 81 In each side be attached four electric wiring substrates 90.

Figure 36 A are to show to include the liquid of liquid spray unit 300, fluid supply unit 220 and vacuum cavitations unit 230 The side view of ejecting head 3, Figure 36 B are the schematic diagrames for the stream for showing liquid, and Figure 36 C are the line XXXVIC- for being showing along Figure 36 A The stereogram in the section of XXXVIC interceptions.In order to be readily appreciated that accompanying drawing, a part of construction is simplified.

Fluid connection 111 and filter 221 are arranged in fluid supply unit 220, the bodily form of vacuum cavitations unit 230 1 Into the downside in fluid supply unit 220.Therefore, compared with the second Application Example, vacuum cavitations unit 230 and type element substrate The distance in short transverse between 10 shortens.Using the construction, passage connecting portion in fluid supply unit 220 is reduced Quantity.As a result, there is following advantage：The reliability for preventing that printing fluid from leaking is improved, and reduces part or step Quantity.Further, since the head difference between vacuum cavitations unit 230 and ejiction opening formation face is relatively reduced, so the construction energy Enough it is applied to following printing device：In the printing device, for the fluid ejection head 3 shown in Figure 33, each fluid ejection head Angle of inclination is different.Due to head difference can be reduced, even if using the fluid ejection head 3 with different inclination angle so working as When, it can also reduce the Negative Pressure Difference for the ejiction opening for being applied to type element substrate.Further, since from vacuum cavitations unit 230 to The distance of type element substrate 10 reduces, so reducing the flowing between vacuum cavitations unit 230 and type element substrate 10 Resistance.It therefore reduces the pressure loss is poor caused by the change of fluid flow, it is thus possible to more desirably control negative pressure.

Figure 36 B are the schematic diagrames for the stream for showing the printing fluid in fluid ejection head 3.Although the circulating path in terms of loop It is different from the circulating path shown in Figure 34, but Figure 36 B are illustrated that the liquid in the part of actual fluid ejection head 3 Stream.A pair of the common feed paths 211 and shared recovery passage 212 extended along the length direction of fluid ejection head 3 are arranged on length In shape alternate path component 60.Common feed path 211 and shared recovery passage 212 are formed so that liquid in common feed Flowed in opposite direction in path 211 and shared recovery passage 212, and filter 221 is arranged on the upstream side of each path, with Just the foreign matter from the grade intrusion of connecting portion 111 is captured.By this way, because liquid flows through common feed path in opposite direction 211 and shared recovery passage 212, so can desirably slow down the thermograde on the length direction in fluid ejection head 3.For The explanation of simplification figure 34, the stream in common feed path 211 and shared recovery passage 212 is represented with identical direction.Negative pressure Control unit 230 is connected to the downstream of each of common feed path 211 and shared recovery passage 212.In addition, sharing Supply passageway 211, which is connected to be independently supplied in path 213a way, is provided with branch, shares recovery passage 212 and is connected to independence Branch is provided with recovery passage 213b way.It is independently supplied path 213a and independent recovery passage 213b formation logical first In road component 50, and be respectively independently supplied path with the opening for the The lid component 20 being arranged at the back side of type element substrate 10 21 (referring to Figure 20 part (c)) connections.

It is the unit of high-pressure side (H) and low-pressure side (L) by Figure 36 B " H " and " L " vacuum cavitations unit 230 represented. Vacuum cavitations unit 230 is the back pressure for high negative pressure (H) and lower negative pressure (L) by the upstream pressure control of vacuum cavitations unit 230 Formula pressure adjustmenting mechanism.Common feed path 211 is connected to vacuum cavitations unit 230 (high-pressure side), shares recovery passage 212 and connects It is connected to vacuum cavitations unit 230 (low-pressure side) so that pressure is produced between common feed path 211 and shared recovery passage 212 Difference.By the pressure difference, liquid flows from common feed path 211 to shared recovery passage 212, during which passes sequentially through and is independently supplied Ejiction opening 13 (balancing gate pit 23) and independent recovery passage 213b in path 213a, type element substrate 10.

Figure 36 C are the stereograms in the section for the line XXXVIC-XXXVIC interceptions for being showing along Figure 36 A.In this Application Example, Each module 200 that sprays includes the first passage member 50, type element substrate 10 and flexible PCB 40.In present embodiment In, in the absence of the supporting member 30 (Figure 18) illustrated in the second Application Example, and the type element substrate 10 including The lid component 20 It is directly joined to the first passage member 50.Liquid is being arranged at the upper of the common feed path 211 of alternate path component from formation The connected entrance 61 on surface is passed through the independent communication mouthfuls 53 of the lower surface of the first passage member 50 to being independently supplied path 213a is supplied.Then, liquid passes through balancing gate pit 23, and passes through independent recovery passage 213b, independent communication mouth 53 and connected entrance 61 to be recycled to shared recovery passage 212.

Here, it is different from the second Application Example as shown in figure 15, the lower surface in the first passage member 50 is formed (close to the The surface of two passage members 60) independent communication mouthfuls 53 relative to the connected entrance 61 formed in the upper surface of alternate path component 50 For it is sufficiently large.Using the construction, even if due to inclined when occurring position when ejection module 200 is installed to alternate path component 60 From the first passage member and alternate path component also can reliably be in fluid communication with each other, so improving in a manufacturing process Yield rate, it is thus possible to the reduction of cost of implementation.

In addition, the explanation of above-mentioned Application Example is not limited the scope of the invention.As an example, in this Application Example, having said Understand and produce bubble to spray the heat type fluid ejection head of liquid by heating element heater.However, the present invention can also be applied to adopt The fluid ejection head of type is sprayed with piezo-electric type and other various liquid.

In this Application Example, have been described that the liquid of wherein ink etc. is circulated between reservoir and fluid ejection head Ink jet printing device (printing device), it is also possible to use other Application Examples.In other Application Examples, for example, can adopt With being constructed as below：Ink is not circulated, and sets two reservoirs to cause Mo Congyi in the upstream side of fluid ejection head and downstream Individual reservoir flows to another reservoir.By this way, the ink in balancing gate pit can flow.

In this Application Example, showing using the so-called line head with the width corresponding to print media is had been described that Example, but the present invention can also be applied to while scanning and printing medium the so-called serial of print image on the print medium Formula fluid ejection head (serial type liquid ejection head).As string type fluid ejection head, for example, liquid Ejecting head equipped with the type element substrate for spraying black ink and can spray the type element substrate of color ink, but of the invention Not limited to this.I.e., it is possible to set shorter than the width of print media and including so that ejiction opening is weighed each other on ejiction opening column direction The fluid ejection head for multiple type element substrates that folded mode is arranged, and can be situated between by the fluid ejection head scanning and printing Matter.

(first embodiment)

Hereinafter, the first embodiment of the present invention is illustrated with reference to the accompanying drawings.Further, since the essential structure of present embodiment It is identical with the first Application Example, so will only illustrate characteristic point below.

Figure 22 A are that the liquid for the printing device 1000 for showing present embodiment sprays the stereogram of module 200.Liquid sprays Module 200 is arranged in the construction of supporting member 30 with type element substrate 10 and flexible PCB 40.Figure 22 B are to show liquid Spray the exploded perspective view of module 200.The terminal 16 of type element substrate 10 and the terminal 41 of flexible PCB 40 pass through metal Distribution (not shown) is electrically connected to each other, and connecting portion is covered to be protected by containment member 110.Supporting member 30 be provided with make from The ink that liquid ejection module 200 sprays is supplied to the fluid connection mouthful 31 of type element substrate 10.It is expected that supporting member 30 has High flatness and sufficiently high reliability, simultaneously engages with type element substrate 10.For example, it is desirable to aluminum oxide or resin conduct Material.

Figure 23 A to 23C are the figures for the structure for showing type element substrate 10.Figure 23 A show type element substrate 10 Overall profile, Figure 23 B are the enlarged drawing for the part XXIIIB for showing Figure 23 A and show liquid through ejiction opening formation component 12 State easily to illustrate the figure, Figure 23 C are the sectional views along Figure 23 A line XXIIIC-XXIIIC interceptions.Printing member The ejiction opening formation component 12 of part substrate 10 is provided with multiple ejiction openings row corresponding to different black colors.Be tod as by heat energy Liquid become the heating element heater of bubble type element 15 be arranged in the substrate 11 of type element substrate 10 correspond to each spray At the position of outlet 13.

In addition, the bearing of trend that the ejiction opening for being arranged with ejiction opening 13 is arranged is referred to as " ejiction opening column direction ".In substrate 11 In, the balancing gate pit 23 for being built-in with type element 15 is limited by partition wall 22.Type element 15 is by being arranged on type element substrate Electric wire (not shown) in 10 is electrically connected to Figure 23 A terminal 16, and is based on passing through flexible PCB 40 from printing device The pulse signal of 1000 control circuit input heats type element 15 so that liquid boiling.Liquid passes through the hair by boiling generation Bubble power sprays from ejiction opening 13.

In addition, the The lid component 20 (referring to Figure 23 C) of sheet be laminated in type element substrate 10 be provided with outlet 13 The back side in face, The lid component 20 is provided with the opening 21 (supply opening 21) connected with liquid supply path described later on 18. In present embodiment, three openings 21 are provided with The lid component 20 with corresponding to a liquid supply path 18.In addition, The lid component 20 opening 21 is connected with Figure 22 B fluid connection mouthful 31 respectively.In addition, The lid component 20 forms the base in type element substrate 10 A part for the wall of liquid supply path 18 formed in plate 11, specifically, The lid component 20 are used as liquid supply path 18 Lid.

Additionally, it is desirable to which The lid component 20 has enough corrosion resistances relative to liquid.In addition, from preventing the viewpoint of colour mixture from going out Hair is, it is necessary to the opening shape and aperture position of high precision formation opening 21.For this reason, it may be desirable to by using photoresist material Material or silicon plate as The lid component 20 material and form using photoetching process opening 21.In addition, The lid component 20 is changed by opening 21 Become the pitch of path.Here, it is contemplated that the pressure loss, it is expected that by the film member formation The lid component with minimal thickness.Consider To described above, expect The lid component 20 being formed as photonasty thin resin film component.

In the present embodiment, it is black to outer loop in balancing gate pit.By using the construction, when fluid ejection head 3 dozens During watermark image, the stream of ink can be produced in the balancing gate pit of printing action or ejiction opening is not used in.Therefore, it is possible to suppress ink at this Retrogradation at part.In addition, the foreign matter in the black or ink of retrogradation can be discharged to the outside that liquid sprays module 200.Therefore, this The fluid ejection head 3 of embodiment can be with higher speed print high quality images.

First, construction of the ink in the ejiction opening interior circulation of present embodiment will be illustrated.As shown in fig. 23 a, along ejiction opening 14a to 14j is arranged, liquid supply path 18 extends in side, and liquids recovery path 19 extends in opposite side.That is, each ejiction opening row Between liquid supply path 18 and liquids recovery path 19.Liquid supply path 18 and liquids recovery path 19 lead to respectively Cross supply mouth 17a and recovery port 17b is connected with balancing gate pit.Liquid supply path 18, liquids recovery path 19, supply mouth 17a and Recovery port 17b formation is on the substrate 11 formed by Si.

In the present embodiment, The lid component 20 is provided with three openings 21 for being arranged for each liquid supply path 18 (supply opening) and two openings 21 (reclaiming opening) for being arranged for each liquids recovery path 19.The opening 21 of The lid component 20 Connected with 31 (referring to Figure 22 B) of fluid connection mouthful of supporting member 30.In this manual, the invention is not restricted to this.At least one Individual opening 21 can be arranged for each of liquid supply path 18 and liquids recovery path 19.

Next, by illustrate type element substrate 10 in liquid stream.Type element substrate 10 is formed by making by Si Substrate 11 and component 12 is formed by the ejiction opening that photoresist is formed be laminated and obtain, The lid component 20 is joined to substrate 11 The back side.In the present embodiment, The lid component 20 and substrate 11 are engaged with each other in the case of without using bonding agent.The one of substrate 11 Individual face is provided with type element 15, and the back side in the face is provided with the He of liquid supply path 18 to be formed and extended along ejiction opening row 14 The groove in liquids recovery path 19.The back side is provided with The lid component 20, and lid is attached to groove to form each liquid path.By substrate 11 and The lid component 20 formation liquid supply path 18 and liquids recovery path 19 be connected respectively to passage member 50 (referring to Fig. 6) Interior common feed path and shared recovery passage (not shown), is produced between liquid supply path 18 and liquids recovery path 19 Raw pressure difference.

When liquid is sprayed with print image from the ejiction opening 13 of fluid ejection head 3, the ejection of spray action is not being performed The liquid in liquid supply path 18 is set to be returned through supply mouth 17a, balancing gate pit 23 and recovery port 17b to liquid by pressure difference at mouthful Path 19 is received to flow (as the stream on the direction shown in Figure 23 C arrow C)., can be by not to be related to printing dynamic by the flowing Liquid is recovered to by ink, foreign matter and the bubble for the retrogradation evaporated and produced from ejiction opening 13 in the ejiction opening 13 of work or balancing gate pit 23 Body reclaims path 19.Furthermore it is possible to suppress the black retrogradation of ejiction opening 13 or balancing gate pit 23.

Opening 21 (reclaim opening) and supporting member 30 of the liquid reclaimed by liquids recovery path 19 through The lid component 20 Fluid connection mouthfuls 31 be recovered to the outside that liquid sprays module 200, and the final feed path by printing device is reclaimed. That is, the liquid that the supply of module 200 is sprayed from printing device main body to liquid flows to be supplied to and reclaim in the following order.It is first First, liquid is flowing successively through the fluid connection mouthful 31 being arranged in supporting member 30, the opening 21 being arranged in The lid component 20 (confession To opening) and be arranged in substrate 11 liquid supply path 18 and supply mouth 17a while supplied to balancing gate pit 23.Supplying In the liquid for being given to balancing gate pit 23, the liquid not sprayed from ejiction opening 13 is flowing successively through recovery port 17b and liquids recovery path 19th, the opening 21 (supply opening) being arranged in The lid component 20 and the fluid connection that is arranged in supporting member 30 mouthful 31 it is same When to liquid spray module 200 flows outside.

By this way, in the liquid ejection module 200 of present embodiment, balancing gate pit 23 or ejiction opening 13 can be suppressed The retrogradation of neighbouring liquid.Slide or do not spray therefore, it is possible to suppress.As a result, it is possible to print high-quality image.

Here, the characteristic of the present invention is illustrated with comparative example with reference to the accompanying drawings.Figure 24 A are the type element bases for showing comparative example The figure of the ejiction opening row of plate and relation of the opening relative to corresponding gradation of drop-out colour of The lid component.In a comparative example, The lid component Opening 21 is placed along the same position in the ejiction opening of ejiction opening column direction row.In this configuration, due to ejiction opening row 14a Ejiction opening on the same straight line of print media conveying direction (direction represented by arrow β) into 14j all row Negative pressure is roughly the same, so gradation of drop-out colour is relatively high at ejiction opening (near opening) place with lower negative pressure, gradation of drop-out colour is in tool Have relatively low at the ejiction opening of high negative pressure.That is, as shown in Figure 24 A curve, due to being provided with high printing in each ejiction opening row Concentration position and low gradation of drop-out colour position, so the shape of printing can be emphasized on the print medium, thus easily identify printing It is uneven.

Here, in the present invention, the opening 21 of The lid component 20 by arranging as follows.Figure 24 B are to show present embodiment Type element substrate 10 ejiction opening row and The lid component 20 relation of the opening 21 relative to corresponding gradation of drop-out colour figure.This The liquid discharge module 200 of embodiment, which has, to be constructed as below：In this configuration, the center (center of gravity) of the opening 21 of The lid component 20 (print media conveying direction is (by arrow β in the direction that position is substantially orthogonal in the orientation with the ejiction opening in ejiction opening row 14 The direction of expression)) on do not configure on the same line.Specifically, opening 21 center configuration relative to ejiction opening The direction that the orientation of ejiction opening in row is substantially orthogonal is formed on the same straight line of predetermined angular.By this way, due to Gradation of drop-out colour distribution be set to it is different according to ejiction opening row 14a to 14j position, so alleviating the shape of gradation of drop-out colour Shape, thus do not allow the shape easy to identify.Thus, it is possible to improve the print quality when print image on the print medium.

In addition, in this manual, when the center of at least one opening 21 in ejiction opening row is defeated in print media Send do not arranged on direction on the same line without cause all openings 21 on above-mentioned straight line the deviation at center when, can obtain Obtain the effect.

Here, in the present embodiment, the ink of the arrival balancing gate pit 23 produced after the ejection of ink refills stream short The stream that time internal ratio circulates through balancing gate pit is strong.Although therefore, opening 21 in exist supply opening 21 and reclaim opening 21, In the case of circulation, the arrival pressure produced after the ejection of ink also can be instantaneously produced in supply side and recovery side The ink of room 23 refills stream.Now, negative pressure is low at the ejiction opening near opening 21, and with away from opening 21, spray The negative pressure in exit becomes more and more higher.

Thus, in the distribution of gradation of drop-out colour as shown in Figure 24 B, no matter supply opening 21 and reclaim any in opening 21 One, gradation of drop-out colour is high near opening 21, and as away from opening 21, gradation of drop-out colour becomes more and more lower.Cause And, due to the center and the center for reclaiming opening 21 of same ejiction opening row 14 of (supply side) opening 21 of ejiction opening row 14 Position is not configured on the same line on print media conveying direction, so can make the high gradation of drop-out colour portion on print media It is scattered.In order to which the effect is further presented, expect even between different ejiction opening row 14 also not by supply opening 21 or The center for reclaiming opening 21 is configured on the same line on print media conveying direction.Now, such as Figure 24 A and Figure 24 B Shown, the center of the opening 21 of supply side and recovery side can not be configured in same straight line on print media conveying direction On.

Further, since supporting member 30 has the function of The lid component 20, so the present invention can also be applied to without The lid component 20 structure.

By this way, the opening of ejiction opening row is arranged such that center (center of gravity) position of at least one opening is relative Do not configured on the same straight line of the moving direction extension of the print media along relative movement in the center of other openings.Cause This, can realize can suppress to print the fluid ejection head that uneven liquid sprays module and sprays module including the liquid.

(second embodiment)

Hereinafter, second embodiment of the present invention is illustrated with reference to the accompanying drawings.Further, since the essential structure of present embodiment Essential structure with the first Application Example is identical, so will only illustrate characteristic point below.

Figure 25 A are the figures for the type element substrate 400 for showing present embodiment, and Figure 25 B are to show that liquid sprays module 500 Exploded perspective view, Figure 25 C are the figures for showing to be configured with the fluid ejection head 600 that liquid sprays module 500.

From opening 21 to the longest distance of ejiction opening 13 it is not between ejiction opening row in the construction of first embodiment With.For example, as understood from Figure 23 A, between the opening 21 and ejiction opening 13 at the right-hand member of ejiction opening row 14a figure Comparison between the distance between opening 21 and ejiction opening 13 at the right-hand member of distance and ejiction opening row 14e figure is understood, is sprayed Mouth row 14a is long.In this configuration, due to negative pressure at the ejiction opening 13 away from opening 21 it is high, so when with high speed Can be delayed supply ink during print image, thus may cause not spray.Therefore, worry that print quality may be deteriorated.

Here, in the present embodiment, the quantity corresponding to the opening 21 of ejiction opening row 14 is constant, from each ejiction opening row 14 Opening 21 be set to the longest distance of ejiction opening 13 it is roughly the same.In the present embodiment, as shown in fig. 25 a, for phase Being centrally disposed on for opening 21 that each ejiction opening row 14 are flowed into liquid forms predetermined angle relative to print media conveying direction (α>0) on same straight line, the profile of type element substrate is formed with forms pre- relative to print media conveying direction Determine the almost parallel quadrangle form on the side of angle [alpha].As shown in fig. 25 a, the parallelogram shape of present embodiment is by beating The angle of the adjacent side formation of the profile of printing elements substrate 400 is not 90 ° of shape.The ejiction opening row side of type element substrate 400 The profile (side) at upward two ends is roughly parallel to ejiction opening row, and the profile on remaining both sides is arranged on the direction intersected with ejiction opening It is roughly parallel to the line at the center for the opening 21 that connection is flowed into for same liquid.In addition, relative to print media conveying direction tool The same straight line for having predetermined angular is roughly parallel to side not parallel with the ejiction opening row of type element substrate 400.

Using the structure, ejiction opening row 14 can be formed so that the longest distance substantially phase from opening 21 to ejiction opening Together.By this way, due in ejiction opening row 14 longest distance it is roughly the same, so ink will not flow through confession with extremely long distance To path 18, the pressure loss is also reduced, it is thus possible to improve print quality.In addition, when same supply passageway 18 is including multiple Be open 21 when, can be the opening 21 than same supply passageway 18 to the distance of opening 21 at least from the end of ejiction opening row 14 Interval on ejiction opening column direction is short.When being arranged in such a way opening, ink will not flow through supply passageway with extremely long distance 18, it is thus possible to further improve print quality.

In addition, in the third embodiment, as noted previously, as also being supplied during spray action from recovery passage 19 Ink, it is desirable to the opening 21 of recovery passage 19 is set the opening 21 as supply passageway 18.

In addition, when type element substrate is formed almost parallel quadrangle form, as shown in fig. 25 c, liquid sprays Module 200 can linearly be arranged along the length direction of fluid ejection head 600.The linearly aligned row of module 200 is sprayed in liquid , can be with higher speed print image in the case of formula fluid ejection head (page width formula fluid ejection head).Now, when different sprays The ejiction opening of row is exported when liquid sprays and is partially overlapped by each other at the connecting portion of module 200, can desirably improve printing matter Amount.Part overlaps each other the ejiction opening arranged due to different ejiction openings as shown in fig. 25 c, so the spray of each type element substrate 10 Outlet row 14 are tilted by a predetermined angle both with respect to the length direction of fluid ejection head 600.In the line head structure, due to being permitted Performed in the case of many and once lead to print action (one-pass printing operation), so the problem of the present invention becomes tight It is high, it is thus possible to be readily available the effect of the present invention.

A variety of black constructions are supplied in addition, having been described that to a type element substrate 10, even if but when to one Type element substrate 10 also results in identical effect when supplying a kind of black.For example, with high speed print image and specially In fluid ejection head for Commercial print purpose, a fluid ejection head is arranged for a kind of ink.However, when the liquid When the liquid of ejecting head sprays construction of the module with the present invention, print quality can be improved.

(the 3rd embodiment)

Hereinafter, third embodiment of the present invention is illustrated with reference to the accompanying drawings.Further, since the essential structure of present embodiment It is identical with the first Application Example, so will only illustrate characteristic point below.

Figure 26 A to 26C are the figures for the structure for showing type element substrate 10.Figure 26 A show type element substrate 10 Overall profile, Figure 26 B are Figure 26 A part XXVIb enlarged drawings, and Figure 26 C are the line XXVIc-XXVIc interceptions along Figure 26 A Sectional view.

In the present embodiment, the construction that the path of ink is supplied to ejiction opening is different from the construction of above-mentioned embodiment. In above-mentioned embodiment, have been described that what is be partitioned to the path that ejiction opening supplies the path of ink and reclaims ink from ejiction opening Construction.However, in the present embodiment, ink is supplied to circulation of the ejiction opening without ink from liquid supply path 418.Liquid is supplied It is provided in type element substrate 410, extends and by supply mouth 417a and ejiction opening along ejiction opening column direction to path 418 The path of 13 connections.In the present invention, as described above, no matter whether circulating, i.e., no matter have whether reclaim opening 21, filling out again Fill under state, gradation of drop-out colour increases near opening 21, and gradation of drop-out colour reduces with away from opening 21.Thus, The present invention can also be applied to not perform the fluid ejection head of the embodiment of circulation.

Hereinafter, it will illustrate that liquid sprays the stream of the liquid in module 200.Ink from the supply of black supply source (not shown) is in liquid Body sprays to be first passed through to form 31 (referring to Figure 22 B) of fluid connection in supporting member 30 mouthful in module 200, and through beating The influent feed path 418 of supply opening 21 of the The lid component 420 of printing elements substrate 410.Now, in conventional inkjet printing In equipment, using including black, cyan, four kinds of colors of magenta and yellow ink, and ink is supplied according to each color separated. In addition, the printing device 1000 of present embodiment includes the four row ejiction openings row for black and the two row sprays for other colors Outlet row.

The ink of influent feed path 418 flows through liquid supply path 418, flows into common feed through supply mouth 417a Liquid chamber 24 is simultaneously divided into balancing gate pit 23.Be supplied to each balancing gate pit 23 ink by by the heat energy that type element 15 is produced seethe with excitement with Sprayed from ejiction opening 13, and land are on print media (not shown), so that print image on the print medium.Work as supply mouth When 417a is arranged in the both sides of ejiction opening row 14 as in present embodiment, ink is rapidly supplied after the ejection of ink, because And can be with higher speed print image.Even if in addition, when supply mouth 417a is provided only on side, the present invention can also be fitted For the construction.

Here, the feature of the present invention will be illustrated.In the present embodiment, the opening of The lid component is according to being constructed as below arrangement. Figure 27 A are the passes between the ejiction opening row for the type element substrate 410 for showing present embodiment and the aperture position of The lid component 420 The figure of system.In the present embodiment, opening 21 is arranged such that the center of the opening 21 of The lid component 420 is situated between corresponding to printing It is not present on the conveying direction of matter conveying direction (direction represented by arrow β) on same straight line.Using the construction, due to Ejiction opening position on ejiction opening column direction with high negative pressure and the ejiction opening position with lower negative pressure on ejiction opening column direction It is different in each ejiction opening row, so the high gradation of drop-out colour position and low gradation of drop-out colour position on ejiction opening column direction are each It is different in ejiction opening row.Therefore, because the high gradation of drop-out colour position and low gradation of drop-out colour position on print media are in each spray It is scattered in outlet row, so alleviating deep or light on print media, thus does not allow that easy to identify this is deep or light.As a result, it is possible to change Kind print quality.

In addition, in the present embodiment, the center of the opening 21 of all The lid components 420 is in print media conveying direction On do not configure on the same line, but the invention is not restricted to this.That is, when at least one opening 21 is relative to other ejiction openings When the opening 21 of row is not arranged on print media conveying direction on same straight line, the effect of the present invention is resulted in.

In addition, when the present invention to be applied to the ejiction opening row 14 of same color, resulting in further effect.In It is, when the present invention is applied into many ejiction opening row 14, to result in bigger effect.Therefore, the opening of ejiction opening row 14 21 do not expect configuration on the same line as much as possible on print media conveying direction.It is same with present embodiment, most expect The center of the opening 21 of all ejiction opening row 14 is configured on ejiction opening column direction at different positions.

In addition, in the above-described embodiment, having used sentence as the center of opening 21, but the sentence can be determined Justice is the center of the shape of opening 21.That is, Figure 27 B have variously-shaped opening exemplified with when from The lid component 420.Such as Shown in figure, the center of opening 21 represents cornerwise intersection point in the case of parallelogram opening, the feelings in circular open The center of circle under condition and two symmetrical axis of symmetry of line in the case of oval opening (long rongd opening) Crosspoint.

Although illustrating the present invention with reference to illustrative embodiments, but it is to be understood that public the invention is not restricted to institute The illustrative embodiments opened.The scope of claims should meet broadest explanation, with comprising all these modifications, etc. Same 26S Proteasome Structure and Function.

Claims (20)

1. a kind of liquid sprays module, it is used in the page width formula liquid that liquid is sprayed from ejiction opening to the print media relatively moved In body ejecting head, the liquid, which sprays module, to be included：

Type element substrate, it includes the first ejiction opening row and the second ejiction opening row and the first liquid supply path and the second liquid Body feed path, in first ejiction opening row and second ejiction opening row, intersects along the direction with the relative movement Direction be arranged with spray liquid ejiction opening, the first liquid supply path and second liquid feed path are respectively to described first Ejiction opening is arranged and second ejiction opening arranges supply liquid and extended respectively along the direction of the intersection；With

First opening and the second opening, it is connected with first liquid supply path and the second liquid feed path respectively To supply liquid to first liquid supply path and the second liquid feed path respectively,

Characterized in that, direction of the deviation of gravity center of the center of gravity of first opening and second opening along the relative movement The straight line of extension.

2. liquid according to claim 1 sprays module, wherein, the liquid, which sprays module, also to be included：

Supporting member, it supports the type element substrate and the connected entrance including supplying liquid to the opening；With

Wiring substrate, it is to the ejection energy generating element supply of electrical energy for being arranged at the type element substrate.

3. liquid according to claim 1 sprays module, wherein, multiple institutes are provided with first liquid supply path State and multiple second openings are provided with the first opening, the second liquid feed path.

4. liquid according to claim 1 sprays module, wherein, the liquid, which sprays module, also to be included：

3rd ejiction opening is arranged, and the direction intersected in the 3rd ejiction opening row along the direction with the relative movement is arranged with spray Go out the ejiction opening of liquid；

3rd liquid supply path, it arranges supply liquid to the 3rd ejiction opening and extended along the direction of the intersection；With

3rd opening, it supplies liquid to the 3rd liquid supply path,

The center of gravity of the center of gravity of first opening, the center of gravity of second opening and the 3rd opening is located relative to along described On the straight line of the straight incline of the direction extension of relative movement.

5. liquid according to claim 1 sprays module, wherein, the type element substrate includes spraying energy production member Part, balancing gate pit and liquids recovery path, the ejection energy generating element produce the energy for spraying liquid, the balancing gate pit In be provided with the ejection energy generating element, the liquids recovery path intersects from balancing gate pit's withdrawal liquid and along described Direction extension.

6. liquid according to claim 5 sprays module, wherein, the liquid, which sprays module, also to be included returning from the liquid Receive the recovery opening of path withdrawal liquid.

7. liquid according to claim 1 sprays module, wherein, first liquid supply path and the second liquid Feed path is arranged at the opposite face in the face with being provided with the ejiction opening of the type element substrate, and

First opening and the described second opening are arranged at film structural component, and the film structural component is arranged at the type element substrate The opposite face.

8. liquid according to claim 1 sprays module, wherein, to first liquid supply path and second liquid Body feed path supplies same liquid.

9. liquid according to claim 1 sprays module, wherein, multiple ejections of liquid are supplied from the described first opening The length of most long liquid path in mouthful is equal to the most long liquid in being supplied multiple ejiction openings of liquid from the described second opening The length in path.

10. liquid according to claim 1 sprays module, wherein, the profile of the type element substrate is formed greatly Cause parallelogram shape.

11. liquid according to claim 1 sprays module, wherein, the type element substrate includes multiple supply mouths, institute State multiple supply mouths and liquid is supplied to the ejiction opening, and the multiple supply mouth edge from first liquid supply path The thickness direction extension of the type element substrate.

12. liquid according to claim 1 sprays module, wherein, the type element substrate includes spraying energy production Element and balancing gate pit, the ejection energy generating element produce the energy for spraying liquid, and the inside of the balancing gate pit is set There is the ejection energy generating element, and

Outer loop from liquid in the balancing gate pit to the balancing gate pit.

13. a kind of fluid ejection head, it is formed page width formula and sprays liquid from ejiction opening to the print media relatively moved Body, the fluid ejection head includes：

Type element substrate, it includes the first ejiction opening row and the second ejiction opening row and the first liquid supply path and the second liquid Body feed path, in first ejiction opening row and second ejiction opening row, intersects along the direction with the relative movement Direction be arranged with the ejiction opening for spraying liquid, first liquid supply path and the second liquid feed path respectively to The first ejiction opening row and second ejiction opening arrange supply liquid and extended respectively along the direction of the intersection；

The lid component, it includes the first opening and the second opening and forms first liquid supply path and second liquid confession To the part in path, first opening and described second be open respectively with first liquid supply path and described second Liquid supply path is connected to supply liquid to first liquid supply path and the second liquid feed path respectively,

Characterized in that, direction of the deviation of gravity center of the center of gravity of first opening and second opening along the relative movement The straight line of extension.

14. fluid ejection head according to claim 13, wherein, the The lid component is photosensitive film component.

15. fluid ejection head according to claim 13, wherein, the type element substrate include the 3rd ejiction opening row and 3rd liquid supply path, the direction intersected in the 3rd ejiction opening row along the direction with the relative movement is arranged with spray Go out the ejiction opening of liquid, the 3rd liquid supply path is to the 3rd ejiction opening row supply liquid and along the side of the intersection To extension,

The The lid component includes the 3rd opening that liquid is supplied to the 3rd liquid supply path, and

The center of gravity of the center of gravity of first opening, the center of gravity of second opening and the 3rd opening is located relative to along described On the straight line of the straight incline of the direction extension of relative movement.

16. fluid ejection head according to claim 13, wherein, the type element substrate includes spraying energy production member Part, balancing gate pit and liquids recovery path, the ejection energy generating element produce the energy for spraying liquid, the balancing gate pit The ejection energy generating element is internally provided with, the liquids recovery path is handed over from balancing gate pit's withdrawal liquid and along described The direction extension of fork, and

The The lid component includes the recovery opening from liquids recovery path withdrawal liquid.

17. fluid ejection head according to claim 13, wherein, the fluid ejection head also includes supporting multiple described beat The supporting member of printing elements substrate,

Direction of multiple type element substrates along the intersection is aligned to rectilinear form.

18. fluid ejection head according to claim 13, wherein, the type element substrate includes spraying energy production member Part and balancing gate pit, the ejection energy generating element produce the energy for spraying liquid, and the balancing gate pit is internally provided with institute Ejection energy generating element is stated, and

Outer loop from liquid in the balancing gate pit to the balancing gate pit.

19. a kind of fluid ejection head, it includes spraying multiple printings of liquid from ejiction opening to the print media relatively moved Device substrate, it is characterised in that

The ejiction opening extends with the direction for being arranged at the type element substrate and edge and the direction of the relative movement intersect Communication,

Multiple ejiction openings are arranged along path formation multiple row ejiction opening,

Be provided with the type element substrate of multiple row ejiction opening row include corresponding to the path that each ejiction opening arranges and Multiple openings of liquid are supplied to the path, and

Center of gravity of the position of centre of gravity of at least one opening in the opening relative to the opening being included in other ejiction opening row Deviate the same straight line along the moving direction extension of the print media of relative movement in position.

20. fluid ejection head according to claim 19, wherein, the fluid ejection head also includes：

Energy generating element, it produces the energy for spraying liquid；

Balancing gate pit, is provided with the energy generating element；

Supply passageway, it supplies liquid to the balancing gate pit；

Recovery passage, it is from balancing gate pit's withdrawal liquid；

Supply mouth, liquid is supplied to the balancing gate pit by it from the supply passageway；With

Recovery port, liquid is recovered to the recovery passage by it from the balancing gate pit,

Liquid in the balancing gate pit passes through the supply passageway and the recovery passage to outer loop.