CN106956512A

CN106956512A - Jet head liquid and liquid injection apparatus

Info

Publication number: CN106956512A
Application number: CN201710008649.1A
Authority: CN
Inventors: 奥岛真吾; 刈田诚郎; 刈田诚一郎; 青木孝纲; 永井议靖
Original assignee: Canon Inc
Current assignee: Canon Inc
Priority date: 2016-01-08
Filing date: 2017-01-06
Publication date: 2017-07-18
Anticipated expiration: 2037-01-06
Also published as: JP6914645B2; JP2017124606A; CN106956512B

Abstract

Jet head liquid and liquid injection apparatus, jet head liquid include：First recording element plate and the second recording element plate, it, which has, is used to produce the recording element by the energy for spraying liquid is used for；First support member and the second support member, it is used to support the first recording element plate and the second recording element plate respectively；And flow channel formation part, the first support member and the second support member being arranged in juxtaposition are carried thereon.The edge for being positioned at second that side of recording element plate of first recording element plate is protruded from the edge for being positioned at second that side of support member of the first support member towards the second recording element plate.

Description

Jet head liquid and liquid injection apparatus

Technical field

Liquid injection apparatus (such as ink-jet printer) is applied not only to family expenses printing, and for Commercial print (such as business Industry purposes is printed and the printing of retail photo), and should for the Industrial Printing including electronic circuitry and flat-panel monitor manufacture With.For liquid injection apparatus, field particularly is printed in commercial use, high-speed printing ability is needed strongly.It is directed to Viable commercial row type jet head liquid is realized, the width of the row type jet head liquid is more than the note that will be used together with this The width of recording medium and the liquid injection port therefore with more than ever before quantity, to realize the printing of more speed.

Background technology

It is used as the technology for realizing the jet head liquid with wider width, it has been proposed that by jet head liquid Longitudinal direction on arrange jet head liquid formed by multiple recording element plates, wherein, it is every in the plurality of recording element plate Individual recording element plate has multiple injection tips.

Japan Patent No.4,495,762 specification disclose it is a kind of will be multiple on the longitudinal direction of jet head liquid The technology of recording element plate arrangement in column.Japan Patent No.4,824,795 specification describes one kind and prepares multiple injection moulds The technology of block, each jet module has recording element plate and supports the support member of the recording element plate, and in injection mould Multiple jet modules are installed in supporting plate in the state of block is individually detachable.By this technology, if in jet module A specific jet module be absorbed in failure, then can only change the module of failure.

When jet module is by using the technology described in the specification in Japan Patent No.4,495,762 or in Japan Patent No.4, technology described in 824,795 specification and when being arranged in column in the state of individually detachable, any two Minimum range between the recording element plate of adjacent positioned by support member machining accuracy level and installation site be directed at essence The level limitation of degree, because these precision levels are relatively low.The problem may cause the record member of any two adjacent positioned The situation that the distance between part plate can not satisfactorily reduce.

When unsatisfactorily shorten separate the recording element plate of any two adjacent positioned apart from when, such as sweeping What the side of retouching was looked up, the width of the displacement for the injection tip row being arranged on two recording element plates in adjacent area may It is very big, and as observed in a longitudinal direction, make between the injection tip being arranged on two recording element plates arranges and separate Gap may become to be difficult to stand ground greatly.Then result, the record figure obtained by using the jet head liquid with this shortcoming As the inhomogeneities on the record image in the region corresponding with the adjacent area of recording element plate may be showed.

The content of the invention

Therefore, in view of above-mentioned problem of the prior art, it is an object of the invention to provide a kind of jet head liquid and liquid Injection apparatus, the distance between the recording element plate of any two of which adjacent positioned can be smaller than conventional.

According to the present invention there is provided a kind of jet head liquid, including：First recording element plate and the second recording element plate, The first recording element plate and the second recording element plate have a recording element for being used for producing energy, and the energy will be by Injection for liquid；First support member and the second support member, first support member and second support member For supporting the first recording element plate and the second recording element plate respectively；And flow channel formation part, it is described First support member and second support member being arranged side by side are carried on flow channel formation part, wherein, it is described The edge for being positioned at that side of the second data board of first recording element plate is described from being positioned at for first support member The edge of second that side of support member is protruded towards the second recording element plate.

From description with reference to the accompanying drawings to exemplary embodiment, further feature of the invention will be apparent.

Brief description of the drawings

Fig. 1 is the schematic diagram of the liquid injection apparatus of the use example 1 of the present invention, and that schematically shows liquid injection The construction of device.

Fig. 2 be the present invention use example 1 in first circulation path schematic diagram.

Fig. 3 be the present invention use example 1 in second circulation path schematic diagram.

Fig. 4 A and 4B are the schematic perspective views of the jet head liquid of the use example 1 of the present invention, and it schematically shows The construction of the jet head liquid.

Fig. 5 is the schematic, exploded, isometric illustration of the jet head liquid of the use example 1 of the present invention.

Fig. 6 A, 6B, 6C, 6D, 6E and 6F be the present invention use example 1 in flow channel formation part surface regard Figure.

Fig. 7 is the schematic amplification perspective view of the flow channel formation part of the use example 1 of the present invention, and it shows Internal flow channel.

Fig. 8 is the schematic cross section along the line 8-8 interceptions in Fig. 7.

Fig. 9 A and 9B be the present invention use example 1 in jet module schematic diagram.

Figure 10 A, 10B and 10C be the present invention use example 1 in recording element plate schematic plan view.

Figure 11 is with the signal of recording element plate and cover shown in the line 11-11 interceptions cross section in Figure 10 A Property stereogram.

Figure 12 is the schematic enlarged plan view of the adjacent area of two recording element plates of the use example 1 of the present invention.

Figure 13 A and 13B are the schematic perspective views of the jet head liquid of the use example 2 of the present invention, and it schematically shows The construction of the jet head liquid is gone out.

Figure 14 is the schematic, exploded, isometric illustration of the jet head liquid of the use example 2 of the present invention.

Figure 15 A, 15B, 15C, 15D and 15E be the present invention use example 2 in flow channel formation part surface regard Figure.

Figure 16 is the recording element plate of the use example 2 of the present invention and the schematic isometric perspective of flow channel formation part Figure, it shows recording element plate and flow channel from the visual angle for the liquid for flowing through recording element plate and flow channel formation part Form the annexation of part.

Figure 17 is the schematic cross section along the line 17-17 interceptions in Figure 16.

Figure 18 A and 18B be the present invention use example 2 in jet module schematic diagram.

Figure 19 A, 19B and 19C be the present invention use example 2 in recording element plate schematic plan view.

Figure 20 is the schematic perspective view of the liquid injection apparatus of the use example 2 of the present invention, that schematically shows The construction of the liquid injection apparatus.

Figure 21 A and 21B are the schematic perspective views of jet head liquid according to a first embodiment of the present invention, and it is schematically Show the construction of the jet head liquid.

Figure 22 A, 22B, 22C and 22D are the schematic plans of jet head liquid according to a first embodiment of the present invention.

Figure 23 A and 23B be jet head liquid according to a first embodiment of the present invention injection tip row in some arrange The schematic diagram of position displacement.

Figure 24 is showing for the adjacent area of the recording element plate of two adjacent positioneds according to the first embodiment of the present invention Meaning property cross-sectional side view.

Figure 25 A, 25B, 25C and 25D are the signals of some advantages of jet head liquid according to a first embodiment of the present invention Figure.

Figure 26 A and 26B are the schematic perspective views of jet head liquid according to a second embodiment of the present invention, and it is schematically Show the construction of the jet head liquid.

Figure 27 A and 27B are some record members in the recording element plate being arranged side by side according to a second embodiment of the present invention The schematic diagram of part plate.

Figure 28 is the flow chart for the manufacturing step for showing jet head liquid according to the second embodiment of the present invention.

Embodiment

Now, by the use example of the present invention and embodiment and the present invention will be more fully described by reference to accompanying drawing. However, it should be noted that description given below is not limited the scope of the invention.The jet head liquid of the embodiments described below leads to Cross using heat type recording element to realize, the heat type recording element is designed to produce bubble to spray the heating member of liquid Part, but piezo-electric type or some other liquid jet type recording elements can alternatively for purposes of the present invention.According to this Being used for of invention sprays the jet head liquid of liquid (such as black) and liquid injection apparatus including this jet head liquid can be with In the field of printer, duplicator, the facsimile machine with telecommunication system and the word processor with printer portion It is applied.In addition, jet head liquid and liquid injection apparatus including this jet head liquid can also be by by bases Liquid injection apparatus and any one in various processing equipments of the present invention combine compoundly formed by industrial recording apparatus Field in be applied.For example, jet head liquid and the liquid injection apparatus including this jet head liquid can produced It is applied in biochip field, electronic circuit print field, semiconductor substrate production field etc..

Although what is be described below is each using embodiments of the present invention are used in example, in this embodiment, So that such as black liquid is circulated between storage container and jet head liquid, but can be alternatively using times of the present invention What his implementation.In the different embodiments for realizing the present invention, for example, jet head liquid can be provided with two storages A storage container in container, and two storage containers is arranged on upstream side, and another storage container is arranged on liquid The downstream of body injector head, and cause liquid from the container flowing of the container of upstream side downstream side, not cause stream Flow the liquid in the balancing gate pit of jet head liquid in the state of body circulation.

What is be described below is each using in example, using so-called row type (page width type) liquid with following length Injector head, the length corresponds to the width for the recording medium that will be used together with jet head liquid.However, it is possible to alternatively Using so-called serial type jet head liquid, the serial type jet head liquid is designed to scanning for recording operation at it Record operation is performed while recording medium.Exemplary serial type jet head liquid is usual but is provided with record member without limitation Part plate, the recording element plate includes the recording element plate for the recording element plate of black ink and for shades of colour ink.Substitute Property, serial type jet head liquid can include multiple recording element plates, and the plurality of recording element plate is arranged such that multiple notes The injection tip of record element board is listed in partly overlapping on the direction of injection tip row, and the serial type jet head liquid Width be more than the width of recording medium that will be used together with jet head liquid.

(using example 1)

(explanation of ink jet recording device)

Fig. 1 is the schematic diagram of the liquid injection apparatus using example 1, and that schematically shows can be by applying this hair The construction of the liquid injection apparatus of bright realization.Liquid injection apparatus shown in Fig. 1 be ink jet recording device 1000 (below also referred to as For recording equipment).Recording equipment 1000 includes the transport unit 1 for transmitting recording medium 2 and transmitted relative to recording medium 2 The row type jet head liquid 3 arranged substantially orthogonal to ground of direction, and recording equipment 1000 be designed to continuously or The one way recording equipment of record operation is consecutively carried out while intermittently transmitting recording medium 2 with one way.Recording medium 2 can be with It is the form of the form either paper of roll web.Jet head liquid 3 can by using CMYK ink (cyan ink, magenta ink, Yellow ink and black ink) panchromatic printing is performed as liquid.As will be described below, jet head liquid 3 is fluidly connected to liquid Body supply device, the liquid feeder part is to be used to supply the feed path of injector head, main appearance with liquid as will be described below Device and buffer container (referring to Fig. 2).Jet head liquid 3 is additionally electrically connected to electric control portion, and the electric control portion is to liquid injection First 3 transmission electric power and logical signal.The flow path of the liquid in jet head liquid 3 and electric signal bang path is described below.

(explanation in first circulation path)

Now, the circulation road for circulating liquid of the recording equipment used applied to this in example will be described hereinafter Footpath.Fig. 2 is the schematic diagram in the first circulation path for circulating liquid, and it illustrates can be applied to this to set using the record of example The embodiment of standby circulating path.Reference picture 2, jet head liquid 3 is fluidly coupled to first circulation pump (high-pressure side) 1001, One circulating pump (low-pressure side) 1002 and buffer container 1003.Although illustrate only magenta, green grass or young crops in fig. 2 for purposes of simplicity The path that a kind of ink in color, yellow and black ink flows through, in reality, in jet head liquid 3 and the main body of recording equipment 1000 In be disposed with black four groups of circulating paths altogether for four kinds of colors.

The buffer container 1003 for being arranged as secondary container operation is connected to primary tank 1006.Buffer container 1003, which has, to be used The air communication port (not shown) connected is set up between the inside in container and air, by the ink in buffer container Bubble is discharged to the outside.Buffer container 1003 is extraly connected to replenishment pump 1005.When the liquid in jet head liquid 3 due to from The injection tip injection of jet head liquid 3 or the operation of discharge liquid and when being consumed, replenishment pump 1005 is operated with by Mo Congzhu Container 1006 is transferred to buffer container 1003, to compensate the consumption of ink.Injection and the operation of discharge liquid generally include record Operation and suction recovery operation.

Have as two first circulation pumps 1001,1002 of device for transporting liquid from the liquid of jet head liquid 3 and connect The pumping liquid of portion 111 simultaneously makes downward liquid flow to the function of buffer container 1003.First circulation pump is preferably capable quantitatively The positive-displacement pump of feed fluid.More specifically, can preferably be selected for the pump of first circulation pump includes tubing pump, gear Pump, membrane pump and syringe pump.For example, the pump can be the type with constant flow rate valve and pressure-reducing valve, the constant flow rate Valve and pressure-reducing valve are known and are arranged in pump discharge and sentence and ensure constant flow.When jet head liquid 3 is actuated to behaviour When making so that liquid is by first circulation pump (high-pressure side) 1001 and first circulation pump (low-pressure side) 1002 respectively with constant flow rate Flow through common feed path 211 and shared recovery approach 212.Fluid flow be preferably selected in following traffic levels it On, wherein, under the traffic level, the temperature difference between recording element plate 10 in jet head liquid 3 is negatively affected The quality of the image recorded by ink jet recording device.If however, excessive flow is selected, in the stream of jet head liquid 3 Under the influence of the pressure loss in dynamic passage, the Negative Pressure Difference between recording element plate 10 becomes on image that is too much and causing record Density inhomogeneity the problem of.It is therefore preferred that by consider both temperature difference and Negative Pressure Difference between recording element plate 10 come Select flow.

Vacuum cavitations unit 230 is arranged between second circulation pump 1004 and liquid ejection unit 300.Vacuum cavitations unit 230 operate so that when the flow in circulating path is fluctuated due to record load (duty) difference, vacuum cavitations unit 230 will Pressure limit at the downstream of vacuum cavitations unit 230 is in the predetermined model centered on pre-selection and desired stress level In enclosing.Orientate as than vacuum cavitations unit 230 closer to liquid ejection unit 300 in the downstream of vacuum cavitations unit 230 Side.Vacuum cavitations unit 230 has two pressure regulators, wherein, respective control pressure different from each other be preselected and It is default.As long as each pressure regulator in described two pressure regulators can control the pressure at side downstream with by pressure Any fluctuation be limited in by pre-selection and desired stress level centered on preset range in, described two pressure regulators It is not subject to any particular limitation.So-called " pressure reducing regulator " can be used for pressure regulator.When pressure reducing regulator is used for During pressure regulator, as shown in Fig. 2 preferably by second circulation pump 1004 and by fluid supply unit 220 come to negative pressure The upstream side of control unit 230 applies pressure.This arrangement can improve the laying buffer container 1003 in recording equipment 1000 The free degree liquid is sprayed because the arrangement can suppress the head pressure (head pressure) of buffer container 1003 Penetrate first 3 influence.Second circulation pump 1004 only needs to show to be not less than observed when jet head liquid 3 is actuated to operation The head pressure of predetermined pressure level in the range of flow of the recirculation ink arrived.For example, turbine pump or positive-displacement pump can be used for Second circulation pump 1004.More specifically, membrane pump can be selected for second circulation pump 1004.Alternatively, second circulation Pump 1004 can be replaced by water header tank, and the water header tank is arranged to show relative to vacuum cavitations unit 230 Predetermined head difference.

On two pressure regulators, preselect the pressure regulator of of a relatively high output pressure and preselect relatively low The pressure regulator of output pressure is connected respectively to being total in liquid ejection unit 300 by the inside of fluid supply unit 220 With feed path 211 and shared recovery approach 212.In fig. 2, pressure regulator with relatively high pre-selection output pressure by H is represented, and the pressure regulator with relatively low pre-selection output pressure is represented by L.Common feed path 211, shared recovery Passage 212, each single feed path 213 connected with corresponding recording element plate and also connect with each recording element plate Each single recovery approach 214 be disposed in liquid ejection unit 300.Each single feed path 213 and it is each individually Recovery approach 214 is connected with common feed path 211 and shared recovery approach 212 respectively.Due to this arrangement, shared confession is flowed through To a part for the liquid of passage 211 and then by the inner flow passage inside recording element plate 10 from common feed path 211 flow to shared recovery approach 212 (as represented by by the arrow in Fig. 2).Because with relatively high pre-selection The pressure regulator H of output pressure is connected to common feed path 211, and with the pressure of relatively low pre-selection output pressure Adjuster L is connected to shared recovery approach 212, thus causes two common-use tunnels (common feed path 211 reclaims logical with sharing Road 212) between pressure differential.

As described above, in liquid ejection unit 300, liquid flows through common feed path 211 and shared recovery approach 212 The two, so as to produce flow path in the corresponding recording element plate 10 that a part of liquid flows through.Therefore, as a result, record member The heat produced in part plate 10 can be by flowing through a part of liquid of common feed path 211 and shared recovery approach 212 Body and the outside for being discharged to recording element plate 10.Extraly, by above-mentioned arrangement, when jet head liquid 3 is actuated to be used to remember During record operation so that liquid is flowed through in the injection tip and balancing gate pit not run, so as to suppress in these positions to occur Black viscosity any possible rise.In addition, can by the increased liquid of viscosity and comprising in a liquid foreign matter (if If) it is discharged to shared recovery approach 212.Therefore, this arrangement allows this using the jet head liquid 3 of example with high speed Record the image of high-quality.

(explanation in second circulation path)

Fig. 3 be the present invention use example 1 in second circulation path schematic diagram, the second circulation path with it is above-mentioned First circulation path is different, but can also be applied to the recording equipment according to the present invention.Second circulation path and first circulation The difference in path is essentially consisted in, and two pressure regulators of vacuum cavitations unit 230 all control vacuum cavitations unit 230 Pressure at upstream side.In other words, two pressure regulators are all operated with by the pressure at the upstream side of vacuum cavitations unit 230 Power restriction is in the preset range centered on pre-selection and desired stress level (as the behaviour of so-called " back pressure regulator " Make).Second circulation path also differ in that the operation of second circulation pump 1004 is negative for reducing with first circulation path Press the negative pressure source of the pressure at the downstream of control unit 230.The difference volume in second circulation path and first circulation path Other places is that both first circulation pump (high-pressure side) 1001 and first circulation pump (low-pressure side) 1002 are all disposed within jet head liquid Upstream side at, and vacuum cavitations unit 230 is arranged at the downstream of jet head liquid.

At second circulation path, even if the operation of vacuum cavitations unit 230 is when the flow in circulating path is due to record Load difference and when fluctuating, also the pressure oscillation produced at the upstream side of itself of vacuum cavitations unit 230 is limited in pre- In preset range centered on choosing and desired stress level.The upstream side of vacuum cavitations unit 230 is compared to negative pressure Control unit 230 to liquid ejection unit 300 closer to side.As shown in Figure 3, at the downstream of vacuum cavitations unit 230 Pressure preferably reduces by second circulation pump 1004 and by fluid supply unit 220.This arrangement can improve laying note The free degree of buffer container 1003 in recording apparatus 1000, because the arrangement can suppress the head pressure of buffer container 1003 Influence of the power to jet head liquid 3.Second circulation pump 1004 can be replaced by water header tank, and the water header tank is arranged to Show the predetermined head difference relative to vacuum cavitations unit 230.

As shown in figure 3, as the situation in first circulation path, vacuum cavitations unit 230 has two pressure regulations Device, wherein corresponding control pressure different from each other is preselected and preset.On two pressure regulators, with relatively high pre-selection The pressure regulator (H) of output pressure and pressure regulator (L) with relatively low pre-selection output pressure are supplied by liquid The inside of unit 220 is connected respectively to common feed path 211 and shared recovery approach 212 in liquid ejection unit 300.By Pressure in two draft regulators of setting, common feed path 211 is relative to the pressure in shared recovery approach 212 more It is high.Therefore, a part for the liquid of common feed path 211 is flowed through and then by each single feed path 213, recording element Flow channel and each single recovery approach 214 (as indicated by the arrows in fig. 3) inside plate 10 are from common feed path 211 It flow to shared recovery approach 212.As described above, second circulation path can be as first circulation path in liquid injection list Liquid flow is produced in member 300, and additionally provides the advantage different from the advantage in first circulation path as described below.

First advantage is, because in the case of second circulation path, vacuum cavitations unit 230 is arranged in liquid spray At the downstream for penetrating first 3, therefore the dust produced by vacuum cavitations unit 230 and other foreign matters can hardly flow to liquid In injector head.Second advantage is, in the case of second circulation path, and liquid is supplied into liquid from buffer container 1003 The maximum of flow necessary to injector head 3 is less than the comparable flow in the case of first circulation path.It will retouch below The reason for stating above-mentioned advantage.

When liquid ejection unit 300 is in record holding state and therefore liquid ejection unit 300 does not spray any liquid , it is necessary to make liquid in common feed path 211 and flowed also in shared recovery approach 212 during body, to reduce liquid spray The temperature difference penetrated between the recording element plate 10 in unit 300.It is assumed here that by the recording element plate 10 in jet head liquid 3 it Between temperature difference be limited in expect within the temperature range of necessary to the flow of liquid that is flowed in common feed path 211 and The minimum value or minimal circulation flow of the flow sum of the liquid flowed in recovery approach 212 is shared are A.In addition, it is assumed that Liquid ejection unit 300 sprays the injection stream under the full spray regime of ink from all injection tips of the liquid ejection unit 300 Measure as F.Then, in the case of first circulation path (in the case of figure 2), the pre-selection stream of first circulation pump (high-pressure side) 1001 The preselected flow rate of amount and first circulation pump (low-pressure side) 1002 is equal to minimal circulation flow A.Therefore, will under full spray regime Liquid supply flow rate necessary to liquid is supplied to jet head liquid 3 is equal to A+F.Therefore, at first circulation passage must The maximum of the supply flow rate needed is equal to A+F.

On the other hand, in the case of second circulation path (in the context of fig. 3), by liquid in record holding state Liquid supply flow rate necessary to being supplied to jet head liquid 3 is equal to A, and supplies a liquid to liquid under full spray regime Liquid supply flow rate necessary to injector head 3 is equal to F.Therefore, the preselected flow rate and first of first circulation pump (high-pressure side) 1001 The preselected flow rate sum of circulating pump (low-pressure side) 1002 is equal to A or F, should and more than another in A or F.Therefore, followed second The maximum of necessary supply flow rate at endless path is equal to A or F, and the value is more than another in A or F.

Therefore, when comparing with same configuration but one of using first circulation path, another is followed using second During two jet head liquids 3 of endless path, using second circulation path jet head liquid 3 required supply flow rate maximum Be worth (A or F) be inevitably less than using first circulation path institute must supply flow rate maximum (A+F).Therefore, second The selection free degree of applicable circulating pump at circulating path is higher than the comparable value at first circulation path.In other words, may be used To use the inexpensive circulating pump with simple structure and/or the cooler being mounted at main body side path can be reduced (not Show) load, with provide reduction recording equipment main body cost advantage.The advantage is in the relatively large row type of A values or F values It is particularly significant in jet head liquid and more particularly significant in the row type jet head liquid with larger longitudinal length.

However, on the other hand, there is a situation where more favourable than using second circulation path using first circulation path.Example Such as, when using second circulation path, in record holding state, the flow of the liquid flowed in liquid ejection unit 300 Become maximum, therefore, the record load of image to be recorded is lower, and the negative pressure for being applied to injection tip is higher.Therefore, particularly When reduce common feed path 211 and shared recovery approach 212 channel width (passage orthogonal with the direction that liquid flows Direction on lateral length) width (length of jet head liquid in a lateral direction) to reduce jet head liquid when, When recording image (wherein, the inhomogeneities of image tends to become notable) of low record load, high negative pressure is applied to injection Port.Then, the influence of so-called satellite droplet may become quite big.On the other hand, when using first circulation path, only exist Apply high negative pressure to injection tip during the image of the high record load of record so that if producing satellite droplet, satellite droplet It is hardly visible to eyes.Then, first circulation path provides adverse effect of the satellite droplet to record image minimum advantage.

It therefore, it can (include injection flow F regulation according to the specification of jet head liquid and the specification of recording equipment main body Regulation Channel resistance values in value, minimal circulation flow A setting and jet head liquid) select first circulation path and Preferred one in two circulating paths.

(explanation of the construction of jet head liquid)

The construction of the jet head liquid 3 using example 1 will be described below now.Fig. 4 A and 4B are that this uses example The schematic perspective view of jet head liquid 3.Jet head liquid 3 is by the linear arrangement individual recording element plate 10 in 15 (15) altogether Each recording element plate in row type jet head liquid formed by (embarking on journey), recording element plate 10 can spray magenta, green grass or young crops The ink of color, four kinds of colors of yellow and black.As shown in Figure 4 A, jet head liquid 3 includes recording element plate 10, flexible wiring sheet 40th, signal input terminal 91 and power supply terminal 92, signal input terminal 91 and power supply terminal 92 are electrically connected by electric wiring plate 90 It is connected to recording element plate 10 and flexible wiring sheet 40.Signal input terminal 91 and power supply terminal 92 are electrically connected to recording equipment 1000 Control unit (not shown), and respectively to recording element plate 10 provide injection liquid necessary to logical signal and electric power. Can be by the intensive distribution of the circuit realiration in electric wiring plate 90, to reduce signal relative to the quantity of recording element plate 10 The quantity of input terminal 91 and the quantity of power supply terminal 92.Then as a result, it is possible to make when installing jet head liquid 3 and change liquid The quantity for the electrical connection for being disassembled and being reconstructed is needed to minimize during body injector head 3.As shown in Figure 4 B, it is positioned at jet head liquid Fluid connection 111 at 3 opposite edges is connected to the liquid-supplying system of recording equipment 1000.Pass through this arrangement, product Red, cyan, the ink of four kinds of colors of yellow and black are supplied to jet head liquid 3 by the feed system from recording equipment 1000, And the feed system of recording equipment 1000 is recovered and is brought back into by the ink of the inside of jet head liquid 3.With this Every kind of in mode, the ink of four kinds of colors can pass through the corresponding ink footpath in recording equipment 1000 and jet head liquid 3 In corresponding ink footpath circulate.

Fig. 5 is the exploded perspective schematic diagram of the jet head liquid 3 using example 1, and it illustrates the part of jet head liquid 3 And unit.In Figure 5, liquid ejection unit 300, fluid supply unit 220 and electric wiring plate 90 are assembled to casing 80.Liquid Object supply unit 220 is provided with respective fluid connection 111 (referring to Fig. 2 and Fig. 3), and for the black mistake of each color Filter 221 (referring to Fig. 2 and Fig. 3) is arranged in the inside of fluid supply unit 220 and corresponding with fluid connection 111 Opening keeps connection, to remove the foreign matter included in the liquid supplied by fluid supply unit 220.Two liquid supplies Each fluid supply unit in unit 220 is provided with for two different colors of two filters 221.Pass through phase in liquid After the filter 221 answered, liquid is then fed to the vacuum cavitations unit 230 being arranged on fluid supply unit 220, with Corresponding to corresponding color.Vacuum cavitations unit 230 is the unit with the pressure-regulating valve for being used for four kinds of different colours, negative pressure Control unit 230 is designed to significantly decay in recording equipment 1000 by the valve and spring members being arranged in inside unit The change of the pressure loss in feed system (being arranged in the feed system at the upstream side of jet head liquid 3), the pressure loss Change may occur due to the fluctuation of fluid flow.Due to this arrangement, each Stress control in pressure control unit The change of negative pressure at the downstream of unit (at that side of liquid ejection unit 300) can be limited in certain limit, To cause negative regulation.Each vacuum cavitations unit in the vacuum cavitations unit 230 of four kinds of colors, which is included, is used for vacuum cavitations Two pressure-regulating valves of the color of itself of unit 230, and reference picture 2, divide in two pressure-regulating valves as described above Different control pressures are not set.In two pressure-regulating valves, an on high-tension side pressure-regulating valve is supplied single by liquid Member 220 is connected with the common feed path 211 in liquid ejection unit 300, and a pressure-regulating valve of low-pressure side passes through Fluid supply unit 220 is connected with the shared recovery approach 212 in liquid ejection unit 300.

Casing 80 includes liquid ejection unit support member 81 and electric wiring plate support 82.Therefore, the support of casing 80 liquid Body injection unit 300 and electric wiring plate 90 and ensure the rigidity of jet head liquid 3.Electric wiring plate support 82 is to be used for The part of electric wiring plate 90 is supported, the part is rigidly held to liquid ejection unit support member 81 by screw.Liquid sprays Penetrate unit supports part 81 to play a part of correcting warpage and the deformation that liquid ejection unit 300 is likely to occur, and ensure multiple The relative positional accuracy of recording element plate 10, so as to suppress the striped that otherwise possibly be present on the image recorded by recording equipment With it is uneven.Therefore, liquid ejection unit support member 81 preferably shows gratifying rigidity level.It can be preferred for The material of liquid ejection unit support member 81 includes the metal material and the pottery of such as aluminum oxide of such as SUS (stainless steel) and aluminium Ceramic material.Liquid ejection unit support member 81 is provided with the opening 83 and 84 for receiving elastomer connector 100.Supplied from liquid single The liquid of the supply of member 220 is directed to the 3rd flow channel forming portion included by liquid ejection unit 300 by elastomer connector 100 Part 70.

Liquid ejection unit 300 includes multiple liquid injection modules 200 and flow channel formation part 210, and cap Part 130 is mounted to the surface of the record-oriented medium of liquid ejection unit 300.As shown in figure 5, cover 130 is that have to see Surface and the part of elongated oblong openings 131 got up as photo frame, belongs to the recording element plate of corresponding jet module 200 10 and seal member 110 (referring to Fig. 9 A and 9B) be externally exposed by the opening 131.Operate and make around the framework of opening 131 For contact surface, the contact surface contacts the cap cover part for Covering Liguid injector head 3 under record holding state.Therefore, Adhesive, encapsulant and packing material are applied to liquid ejection unit 300 preferably along the periphery of opening 131, so as to rise Gap in volt planarization and the jeting surface of liquid filling body injection unit 300, so as to when jet head liquid is by cover 130 The space of closing is produced when covering in jet head liquid 3.

The construction of the flow channel formation part 210 of liquid ejection unit 300 will be described below now.As shown in figure 5, Flow channel formation part 210 by the first flow channel formation part 50, second flow path by forming part 60 and the 3rd Flow channel formation part 70 is sequentially placed and formed by above-mentioned one Shangdi at another of order.Flow channel formation part The liquid supplied from fluid supply unit 220 is assigned to each single jet module 200 by 210, and will be flowed from jet module 200 The liquid returned returns to fluid supply unit 220.Flow channel formation part 210 is rigidly held to liquid injection by screw Unit supports part 81, to suppress warpage and the deformation that otherwise flow channel formation part 210 is likely to occur.

Fig. 6 A to Fig. 6 F are to show the first flow channel formation part to the preceding surface of the 3rd flow channel formation part With the view on rear surface.More specifically, Fig. 6 A show the first flow channel formation part 50 jet module 200 is installed Surface, Fig. 6 F show the surface contacted with the holding of liquid ejection unit support member 81 of the 3rd flow channel formation part 70. First flow formation part 50 and second flow channel formation part 60 are joined together, so that Fig. 6 B contacts with shown in 6C Surface is positioned Face to face relative to each other, and second flow path formation part and the 3rd flow channel formation part are joined to Together so that Fig. 6 D contacts with shown in 6E surface is positioned Face to face relative to each other.In second flow path forming portion When the flow channel of part 60 and the 3rd formation part 70 is joined together, by being formed on second flow path formation part 60 Common-use tunnel formation groove 62 and the common-use tunnel being formed on the 3rd flow channel formation part 70 form groove 71 and produced in stream The individual common-use tunnel in eight (8) altogether extended on the longitudinal direction of dynamic passage formation part.Then result, in flow channel forming portion One group of each color formation in the magenta of the inside of part 210 (reference picture 7), cyan, four kinds of colors of yellow and black is shared Feed path 211 and shared recovery approach 212.The communications ports 72 of 3rd flow channel formation part 70 and elastomer connector 100 Corresponding hole keep connection, so as to be fluidly coupled to fluid supply unit 220.Multiple communications ports 61 are formed in the second flowing The bottom surface of the common-use tunnel formation groove 62 of passage formation part 60 so that each communications ports in communications ports 61 and the The opposite edges of corresponding passage formation groove in each single passage formation groove 52 of one flow channel formation part 50 In an edge connection.Communications ports 51 form each single passage formation groove 52 in the first flow channel formation part 50 In each passage formation groove other edge at so that each single passage formation groove 52 by communications ports 51 with it is many Individual jet module 200 is in fluid communication.Each single passage formation groove 52 allows flow channel to be intensively arranged in flow channel shape Into the center of part and immediate vicinity.

First to the 3rd flow channel formation part 50,60,70 preferably has corrosion resistance by using relative to liquid And also the material with low linear expansion coefficient is formed.It is excellent for the first to the 3rd flow channel formation part 50,60 and 70 Choosing is used by using such as aluminum oxide, LCP (liquid crystal polymer), PPS (polyphenylene sulfide) or PSF (polysulfones) is as base material and adds Plus inorganic filling material and the composite that manufactures.For this purpose, the inorganic filler material that can be used includes particulate and dioxy SiClx fiber.Flow channel formation part 210 can be by forming one Shangdi at another of part by three flow channels Sequentially place and three flow channel formation parts are engaged via bonding agent and formed, or formed for flow channel In the case of subassembly selection composite, by the way that flow channel formation part is formed via solder joints.

Now, the connection that the flow channel in flow channel formation part 210 is described below by reference picture 7 is closed System.Fig. 7 be show from the first flow channel formation part 50 be provided with jet module 200 it is surface observation, by will A part for flow channel in flow channel formation part 210 formed by the formation part engagement of first to the 3rd flow channel Schematic amplification perspective view.Extend on the longitudinal direction of jet head liquid 3 be used for magenta, cyan, yellow and Four kinds of colors of black common feed path 211 (211a, 211b, 211c, 211d) and shared recovery approach 212 (212a, 212b, 212c, 212d) it is arranged on flow channel formation part 210.Multiple lists that groove 52 is formed are formed by each single passage Only feed path 213 (213a, 213b, 213c, 213d) is connected respectively to the shared confession of four kinds of colors by communications ports 61 To passage 211.Similarly, form that groove 52 formed by each single passage multiple each single recovery approaches 214 (214a, 214b, 214c, 214d) the shared recovery approach 212 of four kinds of colors is connected respectively to by communications ports 61.Due to such logical Road is configured, and can make it that liquid is intensively flow to by each single feed path 213 from common feed path 211 and is arranged in The recording element plate 10 of the central part office of flow channel formation part.Extraly, liquid can be led to by each single reclaim Road 214 is recovered to shared recovery approach 212 from recording element plate 10.

Fig. 8 is the schematic cross section along the line 8-8 interceptions in Fig. 7.As shown in figure 8, each single recovery approach 214a and 214c keep connecting with jet module 200 respectively by communications ports 51.Although illustrate only in fig. 8 each single Recovery approach 214a and 214c, as seen in figure 7, some other viewgraph of cross-section will show each single feed path 213 Keep communicating with each other respectively with jet module 200.Support member 30 and recording element included in each jet module 200 Flow channel is formed with plate 10, liquid is supplied to from the first flow channel formation part 50 and is arranged in recording element plate 10 On recording element 15 (referring to Figure 10 B).Similarly, included in each jet module 200 support member 30 and record Passage is formed with element board 10, is arrived with being fed into part or all of recovery (backflow) downwards of liquid of recording element 15 First flow channel formation part 50.Note, for each color in four kinds of colors, common feed path 211 passes through liquid Feed unit 220 is connected to vacuum cavitations unit 230 (high-pressure side), and shared recovery approach 212 passes through fluid supply unit 220 are connected to vacuum cavitations unit 230 (low-pressure side).Vacuum cavitations unit 230 be designed to produce common feed path 211 with Share the pressure differential between recovery approach 212.Therefore, connected at this using the flow channel of example in the way of shown in Fig. 7 and Fig. 8 In the jet head liquid 3 connect, the liquid flow for flowing through following paths, the path are all set up for each color in four kinds of colors By sequentially connecting common feed path 211, each single feed path 213, recording element plate 10, each single reclaiming logical Road 214 and shared recovery approach 212 are formed.

(explanation of jet module)

Fig. 9 A are the schematic perspective views of a jet module in jet module 200, and Fig. 9 B are points of jet module 200 Solve stereogram.In order to prepare jet module 200, first, recording element plate 10 and flexible wiring sheet 40 are engaged to advance The support member 30 of the fluid connection port 31 of formation.Then, by wire bonding by 16 points of terminal on recording element plate 10 The terminal 41 on flexible wiring sheet 40 is not electrically coupled to, and then passes through the covering of seal member 110 and sealing wire junction surface (electrical connection section).It is arranged at the side opposite with that the aspectant side of recording element plate 10 with being positioned to of flexible wiring sheet 40 Terminal 42 be electrically connected to one connection terminal 93 of correspondence of electric wiring plate 90 (referring to Fig. 5).Support member 30, which is used as, to be used for The part of recording element plate 10 is supported, and also as making recording element plate 10 and flow channel formation part 210 each other The flow channel formation part of fluid communication.Therefore, support member 30 is preferably prepared as showing the flatness of height, and And be also prepared as highly reliably being joined to recording element plate.The preferred material that can be used for forming support member 30 shows Example includes aluminum oxide and resin material.

(explanation of the structure of recording element plate)

Now, it will be described below the construction using the recording element plate 10 in example.Figure 10 A are recording element plates 10 Formation injection tip 13 surface schematic plan view.Figure 10 B are recording element plates 10 by circle encirclement and by scheming The zoomed-in view for the part that 10B in 10A is represented.Figure 10 C are the tables relative with the surface shown in Figure 10 A of recording element plate 10 The plan in face.As illustrated in figs. 10 a and 10b, injection tip is formed as four rows, is formed with the injection tip with recording element plate 10 Four kinds of colors on part 12 it is black corresponding.In the following description, the direction of injection tip row extension is referred to as " ejection end Mouth column direction ", wherein, each column has multiple injection tips 13.

As shown in Figure 10 B, recording element 15 is also with being arranged in record member at the corresponding position of corresponding injection tip 13 On part plate 10.Recording element 15 is to produce the heater element for making liquid bubble necessary heat by heat energy.However, for this The purpose of invention, recording element 15 may not necessarily be heater element.In other words, it can be selected from according to the recording element of the present invention The various elements by the energy for spraying liquid is used for, such as piezoelectric element can be produced.Internal bag is produced by partition wall 22 Balancing gate pit 23 containing corresponding recording element 15.Recording element 15 (is not shown by the electric wire being arranged on recording element plate 10 Go out) it is electrically connected to the terminal 16 shown in Figure 10 A.Recording element 15 is matched somebody with somebody according to by electric wiring plate 90 (referring to Fig. 5) and flexibility Line plate 40 (referring to Fig. 9 B) from the control circuit of recording equipment 1000 be input to recording element 15 pulse signal produce heat with Make the liquid boiling in recording element 15, and the injection in the presence of the power of the bubble produced due to boiling from recording element 15 Spray liquid in port 13.As shown in Figure 10 B, the side in the opposite side for each column that liquid supply passage 18 is arranged along injection tip Extension, and the opposite side extension that liquids recovery passage 19 is arranged along the injection tip.Liquid supply passage 18 and liquids recovery Passage that passage 19 is arranged on recording element plate 10 and extend along the bearing of trend that injection tip is arranged, and liquid is supplied Pass through related supply port 17a or recovery port 17b respectively to each of passage 18 and liquids recovery passage 19 to keep Connected to related injection tip 13.Supply port 17a is used to supply a liquid to balancing gate pit 23, and recovery port 17b is used for From the withdrawal liquid of balancing gate pit 23.The liquid in balancing gate pit 23 is forced to pass through its corresponding supply port 17a and corresponding recovery end Mouthful 17b is recycled to outside and from outer loop.

As will be described below, as illustrated in figure 10 c with shown in Figure 11, sheet cover 20 is laid in recording element plate 10 On the back side relative with the surface for being formed with injection tip 13.As will be described in more detail, cover 20 be provided with Multiple openings 21 that liquid supply passage 18 is connected with liquids recovery passage 19.In the case where this uses example, for each Liquid supply passage 18, three openings 21 are arranged on cover 20, and for each liquids recovery passage 19, two openings 21 It is arranged on cover 20.Each opening in the opening 21 of cover 20 shown in Figure 10 B keep with it is multiple shown in Fig. 6 A Communications ports 51 are connected.As shown in figure 11, cover 20 is also supplied as the liquid formed in the substrate 11 of recording element plate 10 To the wall of passage 18 a part and liquids recovery passage 19 wall a part.Cover 20 is preferably satisfactorily relative It is anticorrosive in liquid, and from the liquid for preventing different colours the angle of mixing is not intended to, it is necessary to shape and position in opening 21 Put aspect and show high accuracy.Therefore, cover 20 is preferably made up of photoresist material or is made up of silicon plate, and And opening 21 is produced by photoetching process.View of the above, it will be seen that the opening 21 that cover 20 passes through cover 20 Change the pitch of flow channel, therefore from the angle of the pressure loss, it is expected that cover 20 has less thickness.Therefore, cap Part 20 is preferably formed into film-like members.

Now, it will be described below how liquid flows in each recording element plate 10.Figure 11 is along in Figure 10 A Line 11-11 interception recording element plate 10 and cover with the schematic perspective view shown in section.Recording element plate 10 passes through Lay injection tip formation part 12 and is formed, the photonasty tree that the injection tip is formed on the substrate 11 that part 12 is made up of Si Fat material is made.Cover 20 is joined to the back side of substrate 11.Recording element 15 is formed on the preceding surface of substrate 11 (referring to figure 10B), and along injection tip arrange extension, formed for forming the groove of liquid supply passage 18 and liquids recovery passage 19 On apparent surface or the back side.The liquid supply passage 18 and liquids recovery passage 19 formed by substrate 11 and cover 20 is distinguished Common feed path 211 and shared recovery approach 212 in flow channel formation part 210 are connected to, and in liquid supply Pressure differential is produced between passage 18 and liquids recovery passage 19.Pass through some injections from jet head liquid 3 in jet head liquid 3 While port 13 is sprayed liquid and operated by driving to be recorded, at the injection tip for not spraying liquid, in ejection end Mouthful row in each column injection tip liquid supply passage 18 in some liquid by supply port 17a, balancing gate pit 23 and return Receiving end mouthful 17b flow to corresponding liquids recovery passage 19.Therefore, do not spray in the injection tip 13 of liquid and related pressure The elevated liquid of the viscosity by evaporation or ink in room 23, and can pass through flowing comprising bubble and foreign matter in a liquid It is recycled to liquids recovery passage 19 (being represented by the arrow C in Figure 11).Liquid flow can also suppress to be maintained at these ejection ends The increase of the viscosity of liquid or ink in mouth 19 and these balancing gate pits 23.Then, the liquid for being recovered to liquids recovery passage 19 leads to The fluid connection port 31 (reference picture 9B) of the opening 21 and support member 30 of crossing cover 20 is sequentially recovered to flow channel Communications ports 51, each single recovery approach 214 and the shared recovery flow channel 212 formed in part 210.Then, liquid Finally it is recovered to the feed path of recording equipment 1000.

In other words, the liquid flowing of jet head liquid 3 is supplied to so as to as described below from the main body of recording equipment 1000 Mode supply and reclaim.Liquid is flowed into jet head liquid 3 from the fluid connection 111 of fluid supply unit 220 first It is internal.Then, liquid is sequentially fed to elastomer connector 100, the connection end formed in the 3rd flow channel formation part Mouth 72 forms grooves 62 with common-use tunnel formation groove 71, the common-use tunnel formed in second flow path formation part 22 and connected Port 61 and each single passage formation groove 52 and the communications ports 51 formed in the first flow channel formation part.This Afterwards, liquid is by forming the fluid connection port 31 in support member 30, the opening 21 formed in cover and being formed Supply port 17a and liquid supply passage 18 in substrate 11 are sequentially supplied to balancing gate pit 23.It is being supplied to balancing gate pit 23 Liquid in, not from injection tip 13 spray liquid part order flow through the recovery port 17b to be formed in substrate 11 With the fluid connection port of liquids recovery passage 19, the opening 21 formed in cover and formation in support member 30 31.In addition, the part order of liquid flow through the communications ports 51 to be formed in the first flow channel formation part and each Single passage formation groove 52, the communications ports 61 formed in second flow path formation part and common-use tunnel formation groove 62nd, the common-use tunnel formation groove 71 formed in the 3rd flow channel formation part 70 and communications ports 72 and elastomer connector 100.Afterwards, fluid connection 111 of the part of liquid from fluid supply unit is arranged on flows out to jet head liquid 3 Outside.In the case of the first circulation path shown in Fig. 2, the liquid in first circulation path is flowed into from fluid connection 111 Body is fed to elastomer connector 100 after by vacuum cavitations unit 230.Situation in the second circulation path shown in Fig. 3 Under, the liquid reclaimed from balancing gate pit 23 is after by elastomer connector 100 by vacuum cavitations unit 230 from fluid connection 111 flow out to the outside of jet head liquid.

In addition, as shown in Figures 2 and 3, from the opposite edges of the connection feed path 211 of liquid ejection unit 300 The all liq that one edge is flowed into not necessarily is supplied to balancing gate pit 23 by each single feed path 213.In other words, liquid The a part of of body can flow into fluid supply unit 220 by connecting another edge of feed path 211, each without being flowed into In single feed path 213.Such as in the case where this uses example, because there is provided flow channel, liquid flows through the flowing Passage without by any recording element plate 10, even if therefore recording element plate 10 be formed into showing for flow fluid The fine channels of the big resistance of body, can also suppress any backflow of circulating liquid.Consequently, because can suppress in ejection end Mouthfuls 13 and balancing gate pit 23 at and injection tip 13 and the liquid viscosity of the vicinity of balancing gate pit 23 any increase, this uses example Jet head liquid 3 can suppress surge spray and the phenomenon do not sprayed, and therefore can record high-quality image.

(explanation of the position relationship between recording element plate)

Figure 12 is the adjacent region of the recording element plate 10 of the jet module of two adjacent positioneds of the use example 1 of the present invention The schematic enlarged plan view in domain.Using the record of the substantially parallel quadrangle shown in Figure 10 A to 10C in this uses example Element board 10.As shown in figure 12, the injection tip row 14a to 14d of each recording element plate in recording element plate 10 is arranged Make it that injection tip row 14a to 14d tilts certain angle relative to the direction that recording medium is transmitted.It is used as this arrangement As a result, the side transmitted in recording medium is looked up, in the injection tip of each column injection tip 13 of recording element plate 10 In the injection tip of the recording element plate 10 being adjacently positioned in the adjacent area of at least one injection tip and injection tip One injection tip is overlapping.In fig. 12, two injection tips overlap each other on every line D.By this arrangement, even if working as It is overlapping when the appropriate location of recording element plate from a recording element plate 10 in recording element plate 10 is shifted to a certain extent Injection tip can in a controlled manner be operated by driving and compensated displacement so that blackstreak and clear area Domain scintillation (if any) is least obvious.Multiple recording element plates 10 can not be arranged but linear in a zigzag manner Ground (as the crow flies) is arranged.Even if arranging (linear arrangement) by latter, due to as above by reference to the effect described in Figure 12, When being looked up in recording medium sender, the blackstreak in recording element plate join domain and clear area can be minimized Domain scintillation, while suppressing any increase of the length of jet head liquid 3.Although this is existed using the recording element plate 10 of example It is parallelogram in plan, but the present invention is never limited to use parallelogram recording element plate, and the present invention Principle be advantageously applicable to for example for according to the present invention jet head liquid use rectangle, trapezoidal or some other shapes Recording element plate 10 situation.

(using example 2)

Now, the construction and jet head liquid 3 of the recording equipment 1000 of the use example 2 of the present invention will be described below Construction.Note, below by mainly for describing to use example 2 using the difference between example 1 and this example, and can save Slightly the construction of the example to the similar part explanation of construction using example 1.

(explanation of ink jet recording device)

Figure 20 is the schematic perspective view of the ink jet recording device of the use example 2 of the present invention, that schematically shows The construction of the ink jet recording device.The difference of recording equipment 1000 and the recording equipment using example 1 using example 2 exists In for the purpose operated by using the panchromatic record of recording medium 2, being designed as being used for and magenta, cyan, yellow and black The individual jet head liquid 3 in four (4) altogether of the black corresponding monochromatic record of color is arranged in juxtaposition.Although in using example 1, for Only single-row injection tip can use each color, but in using example 2, for each color, 20 (20) row spray altogether Port can use (Figure 19 A).Multiple injection tip row can be suitably allocated to due to being input to the record data of recording equipment, this Planting arrangement allows to perform the record operation of very high speed.In addition, if existing in the injection tip of some row has become not The injection tip of liquid can be sprayed again, then recording medium sender look up relative to being no longer able to spray liquid The injection tip that above-mentioned injection tip is positioned at other row at corresponding position sprays liquid with being actuated to compensation, to ensure The reliability of recording equipment 1000.Therefore, the recording equipment 1000 can be suitably used for Commercial print purpose.Such as using showing In example 1 like that, in this uses example, the feed system of recording equipment 1000, buffer container 1003 and primary tank 1006 (referring to Fig. 2) it is fluidly connected to corresponding jet head liquid 3.For by the electricity of electric power and injection control signal transmission to jet head liquid 3 Control unit is electrically connected to corresponding jet head liquid 3.

(explanation of circulating path)

As using example 1, the second circulation path shown in first circulation path or Fig. 3 shown in Fig. 2 can be used Liquid circulation path between this recording equipment 1000 and jet head liquid 3 using example.

(explanation of the construction of jet head liquid)

Now, the construction of mutually the same multiple jet head liquids 3 of the use example 2 of the present invention will be carried out below Explanation.Figure 13 A and 13B are the schematic perspective views of the jet head liquid of the use example 2 of the present invention, that schematically shows The construction of one of jet head liquid.Jet head liquid 3 is included in side by side linear on the longitudinal direction of jet head liquid 3 and arranged The individual recording element plate 10 in 16 (16) altogether.Jet head liquid 3 is row type ink jet print head, and the row type ink jet print head can be with It is actuated to carry out monochromatic record by using monochromatic ink.As in using example 1, jet head liquid 3 connects including liquid Socket part 111, signal input terminal 91 and power supply terminal 92.If because compared with using example 1, this uses the liquid of example Injector head 3 is arranged with substantial amounts of injection tip, therefore the phase of signal input terminal 91 and power supply terminal 92 along jet head liquid 3 Edge is arranged.This is declined and letter to reduce the voltage being likely to occur in the wiring part being arranged on recording element plate 10 Number transmission delay.

Figure 14 is the schematic, exploded, isometric illustration of the jet head liquid of the use example 2 of the present invention.The portion of jet head liquid 3 Part and unit are separately shown in fig. 14, to illustrate part and the respective function of unit.The angle flowed from liquid, each unit The order of placement of effect and unit and part with part is substantially identical with using example 1, but the unit and part Be used for ensure that the rigid function of jet head liquid is different with use example 1.Using in example 1, jet head liquid it is firm Property is mainly ensured by liquid ejection unit support member 81.On the other hand, in using example 2, by being included in liquid injection list Second flow path in member 300 forms part 60 to ensure the rigidity of jet head liquid.This uses the liquid injection list of example First support member 81 is connected respectively to the opposite edges of second flow path formation part 60, and liquid ejection unit 300 is by machine The bracket of recording equipment 1000 is joined to tool, and jet head liquid 3 is properly positioned in place.Including corresponding vacuum cavitations The liquid ejection unit 220 and electric wiring plate 90 of unit 230 are joined to liquid ejection unit support member 81.Filter (does not show Go out) it is respectively received in two fluid supply units 220.Two vacuum cavitations units 230 are designed to by two negative pressure controls The respective negative pressure different from each other of unit 230 processed carrys out control pressure, wherein, a negative pressure is higher than another negative pressure.In addition, working as When high-pressure side vacuum cavitations unit 230 and low-pressure side vacuum cavitations unit 230 are arranged at the opposite edges of jet head liquid 3, As shown in figure 14, liquid and shared reclaim in the common feed path 211 extended on the longitudinal direction of jet head liquid lead to Liquid in road 212 flows in mutually opposite directions.By this arrangement, common feed path 211 and shared recovery approach Heat exchange between 212 helps to reduce the temperature difference between two groups of common-use tunnels.Therefore, along common-use tunnel arrange it is many Hardly there is temperature difference between individual recording element plate 10, to provide uneven record as caused by temperature difference hardly The advantage of generation.

Now, the flow channel formation part 210 of liquid ejection unit 300 will be described in more detail below.As shown in figure 14, Flow channel formation part 210 is by the way that second flow path formation part 60 is laid on the first flow channel formation part 50 And formed, and flow channel formation part 210 operates the liquid fed from fluid supply unit 220 being assigned to injection mould Block 200.Flow channel formation part 210 is also operated as making to return to liquid confession from the liquid that jet module 200 flows back Flow channel formation part to unit 220.The second flow path formation part 60 of flow channel formation part 210 is wherein The part of common feed path 211 and shared recovery approach 212 is formed with, while, second flow path formation part 60 play and mainly ensure the rigid effect of jet head liquid 3.Therefore, second flow channel formation part 60 is preferably by using order People is satisfactorily anticorrosive relative to liquid and there is the material of the mechanical strength of height to be formed.More specifically, can be suitable for using Include SUS, Ti and aluminum oxide in the material of second flow path formation part 60.

Figure 15 A show the surface by jet module 200 is installed of the first flow channel formation part 50, and Figure 15 B are shown The surface of the opposite side of first flow channel formation part 50, the surface of the opposite side will form part with second flow path 60 form contact.It is different from using example 1, part 50 is formed by by multiple composition portions using the first flow channel of example 2 Part is arranged side by side and formed, with corresponding to jet module 200.When the first flow channel formation part 50 is by using as described above Multiple building blocks formation when, can cause the first flow channel formation part 50 length and the length phase of jet head liquid Correspondence.Therefore, the arrangement of first flow channel formation part 50 is particularly suitable for relatively large-sized jet head liquid 3, Relatively large-sized jet head liquid 3 enables to its own to adapt to B2 sizes and bigger recording medium.Such as Figure 15 A Shown, the communications ports 51 of the first flow channel formation part 50 are in fluid communication with jet module 200, and as shown in fig. 15b, Each single communications ports 53 of first flow channel formation part 50 and the communications ports of second flow path formation part 60 61 are in fluid communication.Figure 15 C show being formed with the first flow channel formation part 50 for second flow path formation part 60 The surface of contact, Figure 15 D show the transversal of the middle body of the second flow path formation part 60 from thickness direction Face, Figure 15 E show the surface by contact is formed with fluid supply unit 220 of second flow path formation part 60.Second The flow channel of flow channel formation part 60 and the function of communications ports with using example 1 be used for monochromatic flow channel and The function of communications ports is similar.One in a pair of common-use tunnels formation groove 71 of second flow path formation part 60 is shared logical Road formation groove is common feed path 211 and another common-use tunnel formation groove is shared recovery approach 212 shown in Figure 16. Longitudinal direction extension of each common-use tunnel formation groove along jet head liquid 3 in common-use tunnel formation groove 71, so that liquid Body is fed into another edge from an edge in opposite edges.It is different from using example 1, in this uses example, share The flow direction of feed path 211 is opposite relative to each other with the flow direction of shared recovery approach 212.

Figure 16 is this schematic perspective perspective view using recording element plate 10 and flow channel the formation part 210 of example, It shows the annexation of recording element plate 10 and flow channel formation part 210 from the angle of the liquid flowed herein.Such as Shown in Figure 16, common feed path 211 and shared recovery approach 212 are arranged in flow channel formation part 210, with along liquid The longitudinal direction extension of injector head 3.The flow channel forming portion of communications ports 61 and first of second flow path formation part 60 Corresponding each single communications ports 53 of part 50 are alignd and connected, so as to set up by common feed path 211 from second The liquid supply of the communications ports 51 of the flow channel of communications ports 72 to the first formation part 50 of flow channel formation part 60 Path.Similarly, flowed by sharing the communications ports 72 to the first of recovery approach 212 from second flow path formation part 60 The liquid supply path of the communications ports 51 of passage formation part 50 is established.

Figure 17 is the schematic cross section along the line 17-17 interceptions in Figure 16.As shown in figure 17, common feed path leads to Cross each single communications ports 53 and communications ports 51 are connected to jet module 200.Although not shown in fig. 17, by referring to Figure 16 will be clear that, as by shown in some other cross sections, each single recovery approach passes through similar path It is connected to jet module 200.As using in example 1, jet module 200 and recording element plate 10 be provided with it is corresponding The flow channel that injection tip 13 is connected, so that part or all of the liquid of supply can pass through liquid spraying operation The injection tip 13 (balancing gate pit 23) that is suspended and flow back to.In addition, such as in using example 1, common feed path 211 passes through phase The fluid supply unit 220 closed is connected to vacuum cavitations unit 230 (high-pressure side), and shares recovery approach 212 by another One fluid supply unit 220 is connected to vacuum cavitations unit 230 (low-pressure side).Due to causing common feed path 211 together With this arrangement of the pressure differential between recovery approach 212, occurs (the balancing gate pit of injection tip 13 by recording element plate 10 23) flowed from common feed path 211 to the liquid of shared recovery approach 212.

(explanation of jet module)

Figure 18 A are the schematic perspective views of jet module 200, and Figure 18 B are the exploded perspective views of jet module.Using showing The difference between jet module and the jet module in example 1 is that multiple terminals 16 are by along in the more of recording element plate 10 Opposite edges (each long leg of recording element plate 10 point) arrangement that the side of individual injection tip row is upwardly extended, and for list Individual recording element plate 10 sets a pair of the flexible wiring sheets 40 for being electrically connected to these terminals 16.Here this arrangement is introduced, because 20 (20) row injection tips are disposed in recording element plate 10 altogether, and it illustrates arrange spray from using eight (8) in example 1 The row for penetrating the injection tip of port are dramatically increased.In other words, the arrangement is introduced into, to reduce from terminal 16 to being arranged as The ultimate range of the recording element 15 arranged corresponding to injection tip, so that reducing may send out at the wiring part of recording element plate 10 Raw voltage declines and signal propagation delay.In addition, the fluid connection port 31 of support member 30 is disposed in recording element plate In 10, so that the row across all injection tips extend.Other side, jet module is similar to using the jet module of example 1.

(explanation of the construction of recording element plate)

Figure 19 A are the signals on the surface for being disposed with injection tip 13 of a recording element plate in recording element plate 10 Figure.Figure 19 C are the schematic diagrames on the surface (rear surface) opposite with the surface shown in Figure 19 A.Figure 19 B be recording element plate 10 with The schematic diagram on 19C identicals surface (rear surface), wherein, cover 20 is removed from the figure.As shown in Figure 19 B, liquid supply is logical Road 18 and liquids recovery passage 19 are alternately arranged on the rear surface of recording element plate 10, to prolong along the direction that injection tip is arranged Stretch.Although compared with using example 1, arrange significant amount row injection tip, using example 1 with this using example it Between essential distinction be, terminal 16 along recording element plate 10 opposite edges arrangement, the recording element plate 10 it is relative Edge extends along the direction that injection tip is arranged as described above.The essential structure using example and the essential structure using example 1 Similar, the essential structure includes：Each column injection tip is provided with a pair of liquid supply passages 18 and liquids recovery passage 19, and And cover 20 is provided with the opening 21 being connected with the fluid connection port 31 of support member 30.

Now, embodiments of the invention are described into the characteristic aspect below for the present invention.

(first embodiment)

Figure 21 A and 21B are the schematic perspective views of the jet head liquid of first embodiment of the invention, and it schematically shows The structure of jet head liquid.More specifically, Figure 21 A are for spraying the schematically vertical of the jet head liquid of liquid (such as black) Body figure, Figure 21 B are the schematic, exploded, isometric illustrations of jet head liquid.

Jet head liquid 13 shown in Figure 21 A and 21B includes multiple recording element plates 10, multiple support members 30 and stream Dynamic passage formation part 210.The quantity of recording element plate 10 is identical with the quantity of support member 30.Recording element plate 10 is by corresponding Support member 30 support, and multiple support members 30 are arranged side by side on single flow channel formation part 210.Figure 22A to 22D is the schematic plan of jet head liquid 3, and it illustrates the record of the jet head liquid 3 available for the present embodiment Four kinds of different exemplary shapes of element board 10 exemplary arrangement different with four kinds.In the case of Figure 22 A, with parallel The recording element plate 10 of quadrangular configuration is arranged in column.The statement of " the parallelogram profile " that is used in the description of this example Refer to following quadrangles, each angle of the quadrangle formed by the adjacent edge of the quadrangle is non-orthogonal.In the following description, The row direction that recording element plate 10 is arranged to form in jet head liquid 3 will be referred to as longitudinal direction 401, and It will be referred to as scanning direction 402 parallel to the direction that direction 401 is transversely to the machine direction in the plane on the surface of recording element plate 10.

In the case of Figure 22 B, recording element plate 10 is arranged to form row, wherein, each recording element plate 10 has Following shapes, in the shape, a pair of side in multipair side positioned opposite extends parallel to each other, and another pair Side is formed by stepped sweep.In the case of Figure 22 C, the recording element plate 10 with parallelogram profile is such as being schemed While arrangement in column like that in 22A, the recording element plate 10 of any two adjacent positioned is moved each other on scanning direction 402 Position.In the case of Figure 22 D, rectangle recording element plate 10 is arranged in column.

In Figure 22 A to 22C each figure situation, the recording element plate 10 of any two adjacent positioned in longitudinal direction and Overlapped each other at least in part on both scanning directions.In the case of Figure 22 D, the recording element plate of any two adjacent positioned 10 only overlap each other in a longitudinal direction.

Figure 23 A and 23B are the schematic diagrames of the position displacement of the injection tip row of jet head liquid 3.Figure 23 A are that have and figure The enlarged diagram of the recording element plate 10 of two adjacent positioneds of the identical profile of recording element plate 10 shown in 22A, it shows The width of the displacement 403 of the injection tip of respective column is gone out.As shown in fig. 23 a, go out in the adjacent area of recording element plate 10 The displacement of existing injection tip row, and the inter-element spacing 404 of the distance between recording element plate 10 as adjacent positioned gets over Small, the width of the displacement 403 of injection tip row is smaller.In other words, for the width for the displacement 403 for reducing injection tip row, Smaller inter-element spacing 404 is much better.Foregoing description is applicable not only to Figure 22 A situation, and applies in general to following liquid Body injector head 3, wherein, as Figure 22 B and 22C situation, the recording element plate 10 of adjacent positioned is in longitudinal direction and scanning Overlapped each other at least in part on both directions.

Figure 23 B are that the amplification of the adjacent area of the recording element plate 10 of two adjacent positioneds in the case of Figure 22 D is shown It is intended to.Although in the case of Figure 23 B, injection tip row between as the situation in Figure 22 A jet head liquids being applied to that Position displacement does not occur for sample, but smaller inter-element spacing 404 is also much better.Because inter-element spacing 404 is smaller, Gap 405 between the injection tip row of adjacent positioned in adjacent area is smaller.Although will be described below shown in Figure 22 A The liquid that the recording element plate 10 of wherein adjacent positioned overlaps each other at least in part on both longitudinal direction and scanning direction Injector head 3, but Figure 23 B situation can also provide the advantage similar to Figure 22 A jet head liquid.

Now, the feature of the present embodiment will be described in greater detail below.

Figure 24 is the schematic cross-section of the adjacent area of the recording element plate 10 of two adjacent positioneds of first embodiment Side view.As shown in figure 24, in the gap area 410 between the recording element plate 10 of two adjacent positioneds, recording element plate 10 and the contact surface 411 of support member 30 separated with the edge 412 being reversed of recording element plate 10.In other words, remember The edge 412 being reversed for recording element board 10 is outstanding from the corresponding edge 413 of support member 30, so that adjacent positioned The distance between recording element plate 10 (gap) is less than in the distance between the support member 30 of adjacent positioned (gap).

Each recording element plate 10 in recording element plate 10 has previously prepared in chip processing (semiconductor machining) Circuit and other parts, and generally formed by using silicon.Generally using any one in various etchings and cutting technique Plant to manufacture the peripheral profile of recording element plate 10.On the other hand, support member 30 is made by being machined and/or moulding It is standby.Support member 30 is produced usually using resin or such as SUS metal.Therefore, the machining accuracy of recording element plate 10 is high In the machining accuracy of support member 30.

Reference picture 24, if edge of the edge of recording element plate 10 not from support member 30 is outstanding, is used as two The precision of the inter-element spacing 404 of the distance between the recording element plate 10 of individual adjacent positioned by support member 30 machining accuracy Determined with the installation site alignment precision of recording element plate 10.If because attempting inter-element spacing 404 being reduced to small Nominally the distance limited in the installation site alignment precision of the machining accuracy by support member 30 and recording element plate 10, branch Support part part 30 can be interfering with each other.

On the contrary, when recording element plate 10 edge 412 as in the present embodiment from the edge of support member 30 to evagination When going out, the machining accuracy of the unsupported part 30 of precision of the inter-element spacing 404 between the recording element plate 10 of adjacent positioned Limitation.The precision of inter-element spacing 404 is aligned by the machining accuracy of recording element plate 10 and the installation site of recording element plate 10 Precision is determined.By this arrangement, if the machining accuracy and the installation site alignment essence of recording element plate 10 of support member 30 Degree is relatively low, as long as then the edge of recording element plate 10 is outstanding more than support member 30 from the edge of support member 30 The distance of dimensional tolerance, support member 30 would not be interfering with each other.Therefore, sprayed to construct liquid by way of being described below First 3 are penetrated, the distance between the recording element plate 10 of two adjacent positioneds can be reduced.

Figure 25 A, 25B, 25C and 25D are the schematic diagram of some advantages of the jet head liquid of the present embodiment, and show The side view of the adjacent area of the recording element plate 10 of the adjacent positioned of jet head liquid.More specifically, Figure 25 A show first Comparative example, Figure 25 B show first example of the present embodiment, and Figure 25 C show the second comparative example, and Figure 25 D are shown Second example of the present embodiment.Figure 25 A and 25B show that (it is arranged on support member 30 to the corresponding recording element plate 10 of carrying On) support member 30 be arranged in flow channel formation part 210 on situation, Figure 25 C and 25D show recording element plate 10 The situation in corresponding support member 30 is installed to, the support member 30 is arranged on flow channel formation part 210.

It is assumed here that the machining accuracy of support member 30 be ± 0.1mm, and recording element plate 10 machining accuracy for ± 0.01mm, and the installation alignment precision of support member 30 is ± 0.1mm, the installation alignment precision of recording element plate 10 for ± 0.01mm。

In the comparative example shown in Figure 25 A and Figure 25 C, the edge of recording element plate 10 is not from the edge of support member 30 It is outstanding.In these cases, more than 0.4mm (value passes through by the machining accuracy of each support member 30 and each value The installation alignment precision of support member 30 is added and will and double to obtain) need to be selected for distance 406, part between part Between distance 406 be the distance between support member 30 of two adjacent positioneds.In other words, inter-element spacing 404 at least equal to 0.4mm。

For first example of the present embodiment shown in Figure 25 B, inter-element spacing 404 can be made to be equal to by will each remember Recording the machining accuracy and the installation alignment precision phase adduction of each recording element plate 10 of element board 10 will obtain with doubling 0.04mm.Therefore, the inter-element spacing 404 of first example of the present embodiment can be from the element of the comparative example shown in Figure 25 A Between distance 404 reduce 0.36mm.

For second example of the present embodiment shown in Figure 25 D, it can make it that inter-element spacing 404 is equal to and pass through each The installation alignment precision phase adduction of the machining accuracy of recording element plate 10 and each support member 30 will be obtained with doubling 0.22mm.Therefore, the inter-element spacing 404 of second example of the present embodiment can be from the element of the comparative example shown in Figure 25 C Between distance 404 reduce 0.18mm.

In the case of Figure 25 D, if the installation alignment precision of recording element plate 10 is low to a certain extent, it can pass through The installation alignment precision of support member 30 is improved further to reduce inter-element spacing 404.For example, by making each recording element The installation alignment precision of plate 10 is equal to 0.1mm and the installation alignment precision of each support member 30 is equal to 0.01mm, can be with Inter-element spacing 404 is set to be equal to 0.04mm.In this example, it is necessary to which high-precision component installation steps only need to perform once.

As described above, by making the edge 412 of recording element plate 10 relative to the edge 413 of support member 30 to evagination Go out, inter-element spacing 404 can be reduced, so that the injection tip in reducing the adjacent area of the recording element plate 10 of adjacent positioned The displacement width 403 of row.It is thereby possible to reduce being situated between in scanning record in the adjacent area of the recording element plate 10 of adjacent positioned Displacement width on the direction of matter 2, and then the displacement width 403 of reduction injection tip row, and the processing of unsupported part 30 The limitation that the installation alignment precision of precision and support member 30 is applied.Then result, image it is adjacent with recording element plate 10 The problem of such as image at the corresponding position in region is uneven is minimized and can produce high-quality image.

In addition, using present embodiment, following problems can be suppressed, i.e. for engaging recording element plate 10 and supporting part The adhesive of part 30 is wriggled to the cloth of recording element plate 10 upwards from the gap 410 for separating the recording element plate 10 of adjacent positioned It is equipped with the first surface of injection tip 13.Therefore, when using adhesive bond recording element plate 10 and support member 30, this reality The arrangement for applying example provides advantage as described below, wherein, in the arrangement of the present embodiment so that the edge of recording element plate 10 Edge from corresponding support member 30 is outstanding.If that is, adhesive comes out from the surface of engagement, come out Adhesive is forced to be retained on the rear surface of the marginal portion protruded from corresponding support member 30 of recording element plate 10, so that Suppress the problem of adhesive is wriggled upwards from gap 410.

Desirably, multiple support members 30 are arranged on single flow channel formation part 210.Then, support member 30 can Accurately to arrange on longitudinal direction 401, enable to produce high-quality image.

The length of the part for being disposed with recording element plate 10 side by side of flow channel formation part 210 is preferably no less than The Breadth Maximum of recording medium 2 in place can be set in recording equipment 1000.It is this arrangement allow improve image with phase The quality of image to be recorded in the corresponding region of adjacent area of the recording element plate 10 of neighbour's positioning, and can be in record High quality graphic is recorded on the whole width of medium 2.

Although in the present embodiment, recording element plate 10 can be individually replaced, the invention is not restricted to this arrangement. For example, recording element plate 10 can not be individually replaced the jet head liquid 3 that still support member 10 advantageously can be processed individually The advantage similar to the present embodiment can also be provided.

Therefore, the construction requirements to be met by of the present embodiment is only：The edge of the recording element plate 10 of adjacent positioned Edge from corresponding support member 30 is outstanding.As shown in Figure 22 A to 22D, do not having by making the edge of support member 30 Have adjacent positioned recording element plate 10 side at it is outstanding from the edge of corresponding recording element plate 10, support can be made Part 30 stably supports recording element plate 10.In addition, as illustrated in figures 9a and 9b, it is also possible that each stabilization of support member 30 Ground supports the flexible wiring sheet 40 for being joined to recording element plate 10.Described above, it is preferably so that recording element plate 10 It is outstanding relative to corresponding support member 30 at the side that recording element plate 10 is arranged in juxtaposition.On the other hand, preferably So that support member 30 (is joined to accordingly in the side that the recording element plate 10 without adjacent positioned is arranged in support member The side of flexible wiring sheet 40) it is outstanding from corresponding recording element plate 10.

In the following description, a recording element plate in the recording element plate 10 of any two adjacent positioned will be claimed For the first recording element plate, and another recording element plate will be referred to as the second recording element plate.Similarly, support first is recorded The support member 30 of element board will be referred to as the first support member, and the support member 30 of the second recording element plate of support will be referred to as Second support member.Then, the first support member and the second support member are arranged in flow channel formation part 210 side by side On.In addition, the edge for being positioned adjacent to the second recording element plate of the first recording element plate is preferably from the first support member The edge for being positioned adjacent to the second support member is protruded towards the second recording element plate.Similarly, the second recording element plate is determined Position is into the edge close to the first recording element plate preferably from the side for being positioned adjacent to the first support member of the second support member Edge is protruded towards the first recording element plate.

However, the present invention is not limited to the arrangement shown in Figure 22 A to Figure 22 D, it is also possible to apply the invention to each note Element board 10 is recorded along its whole periphery from the outstanding arrangement of corresponding support member 30.

(second embodiment)

Figure 26 A and 26B and Figure 27 A and 27B schematically show the second reality of the jet head liquid according to the present invention Apply example.Figure 26 A and 26B are the schematic diagrames of jet head liquid.More specifically, Figure 26 A are the schematic perspective views of jet head liquid, Figure 26 B are the signal exploded perspective views of jet head liquid.On the other hand, Figure 27 A and 27B are the recording element plates of adjacent positioned Schematic diagram.More specifically, Figure 27 A are the schematic plans of jet head liquid, Figure 27 B are cut along the line 27B-27B in Figure 27 A The schematic cross section taken.

Shown in Figure 26 A and 26B and Figure 27 A and 27B, the jet head liquid of the present embodiment and the liquid of first embodiment spray The difference for penetrating head is that cover 20 is arranged between recording element plate 10 and support member 30.Extraly, in this implementation In the jet head liquid of example, the dorsal part feed path of the injection tip 13 for supplying a liquid to each recording element plate 10 420 are arranged on the rear surface of recording element plate 10, and the operation of cover 20 is supplied as the dorsal part for recording element plate 10 Lid to passage 420.In addition, cover 20 is provided with the supply port for supplying a liquid to dorsal part feed path 420 17a.Generally make it that supply port 17a is connected with the feed path being arranged in inside support member 30.Cover 20 is by resin film It is made and with the thickness smaller than the thickness of support member 30.The thickness of cover 20 is preferably not more than 1mm, more preferably No more than 0.1mm.

In the jet head liquid 3 of the present embodiment, in the phase from corresponding support member 30 of each recording element plate 10 The edge answered is formed with injection tip 13 in outstanding part.Because dorsal part feed path 420 is covered by cover 20, because This liquid can be fed into the injection tip 13 in the outstanding part of recording element plate 10.

Such as in the description of first embodiment, it is assumed here that a record in the recording element plate 10 of two adjacent positioneds Element board will be referred to as the first recording element plate, and another recording element plate will be referred to as the second recording element plate, and false Surely the first support member will be referred to as by supporting the support member 30 of the first recording element plate, and support the second recording element plate Support member 30 will be referred to as the second support member.It should be noted that cover 20 is arranged in first together with dorsal part feed path 420 To cover dorsal part feed path 420 between recording element plate and corresponding support member, the dorsal part feed path 420 is formed Being positioned adjacent on the surface of corresponding first support member and being used as first recording element plate is used to supply a liquid to The feed path of recording element.

It should be noted that being the thickness of thin of thickness ratio support member 30 as the cover of the lid of covering dorsal part feed path 420 Part, to enable cover by with substantially the same with the machining accuracy of recording element plate 10 machining accuracy processing. For example, cover 20 can be formed by processing silicon substrate.If it is, can be not more than the thickness of cover 20 1mm.Silicon substrate can be processed by photoetching, as the blade cutting or laser of the technology for processed wafer.These technologies Any one of may ensure that machining accuracy is substantially equal to the machining accuracy of operation record element board 10.Alternatively, Cover 20 can be formed by processing resin film.If it is the case, can make it that the thickness of cover 20 is not less than 0.1mm.As process silicon substrate in the case of like that, resin film can by photoetching, for processed wafer blade cut or Person laser is processed.Any one of these technologies also ensure that machining accuracy is substantially equal to operation record element board 10 Machining accuracy.Recording element plate 10 and cover 20 are preferably engaged with each other without using any liquid adhesive.Then, It can effectively prevent from being penetrated into recording element plate 10 and cap for engaging the adhesive of recording element plate 10 and cover 20 In feed path in part 20.

In the present embodiment, injection tip 13 be arranged in recording element plate 10 respectively from the side of corresponding support member 30 On the outstanding part of edge 413.Due to this arrangement, compared with first embodiment, make any two of the present embodiment adjacent The distance of separation that the injection tip 13 of the recording element plate 10 of positioning is separated can further reduce.Then result, can be further The displacement width of injection tip row in the adjacent area for the recording element plate 10 for reducing any two adjacent positioned.

As in the description above first embodiment, it is considered between the recording element plate 10 of two adjacent positioneds Inter-element spacing 404 is the inter-element spacing 404 between 0.02mm situation and the recording element plate 10 of two adjacent positioneds For 0.2mm situation.In these cases, injection tip 13 is arranged in the phase with the edge separation 0.05mm of recording element plate 10 Answer at position.When the angle formed by two sides being obliquely installed of each recording element plate 10 is 45 degree, two adjacent The displacement width of injection tip row will be respectively about 0.17mm and about 0.42mm.Therefore, if compared with first embodiment, can be with It is substantially reduced displacement width.As described above, machining accuracy and peace of the displacement width of the present embodiment independent of support member 30 Fill alignment precision.Therefore, as observed on the scanning direction of corresponding recording medium 2, the record of any two adjacent positioned The displacement width in its adjacent area of element board 10 can reduce, so as to reduce the displacement width 403 of injection tip row.Then As a result, the problem of image at position such as corresponding with the adjacent area of recording element plate 10 is uneven can be made minimum Change, and high-quality image can be produced.

In addition, as with the first embodiment, it can effectively suppress to engage the viscous of recording element plate 10 and support member 30 Mixture is wriggled to the cloth of recording element plate 10 upwards from the gap 410 for separating the recording element plate 10 of any two adjacent positioned The problem of putting the first surface of injection tip 13.

It should be noted that as in the present embodiment, in the first embodiment, injection tip 13 can be arranged in recording element On the part outstanding from the corresponding edge of support member 30 of plate 10.If it is the case, feed path need by The formation formed in recording element plate 10 has on the surface of injection tip 13, to supply a liquid to injection tip 13, the spray Port 13 is penetrated to be arranged on the outstanding part of recording element plate 10.Then, although however, in the first embodiment, supplying The height of passage is tens μm to the maximum, but the height of the dorsal part feed path 420 of second embodiment can make about hundreds of μ m.It means that compared with first embodiment, in a second embodiment, liquid, which can be more fully supplied to, is arranged in record member Injection tip 13 in the outstanding part in the corresponding edge from corresponding support member 30 of part plate 10, so that with One embodiment is compared, in a second embodiment, can more satisfactorily improve the record image-region corresponding to adjacent area Picture quality.

Be formed with dorsal part feed path 420 rear surface refer to recording element plate 10 relative to being formed with injection tip 13 Surface essence after surface.In other words, pass through in recording element plate 10 multiple one Shangdi at another of substrate are suitable In the case of secondary placement, rear surface is not the rear surface for the preceding surface upper top substrate for being formed with injection tip 13, but is being incited somebody to action The rear surface for the whole recording element plate 10 that substrate one is made after placing after the other, and the rear surface positioning It is opposite into the preceding surface with being formed with injection tip 13.In the case of Figure 27 B, the recording element plates 10 of two adjacent positioneds it Between distance be equal to the distance between cover 20 of two adjacent positioneds, between the recording element plate 10 of two adjacent positioneds Distance can be less than the distance between cover 20 of two adjacent positioneds.

(manufacturing step of the jet head liquid of second embodiment)

Figure 28 is the flow chart of the manufacturing step for the jet head liquid for showing second embodiment.

First, the injection tip forming step (step S501) that injection tip 13 is formed on recording element plate 10 is performed, Wherein, it is already formed with the recording element plate 10 for loop necessary to foaming liquid (such as recording element 15). Now, recording element plate 10 is the form of chip.Then, perform and dorsal part feed path is formed on the back side of recording element plate 10 420 dorsal part feed path forming step (step S502).Then, perform and form cover on the back side of recording element plate 10 20 cover forming step (step S503).Then, perform and recording element plate 10 is machined so as to recording element plate 10 The designed appropriate exterior contour of presentation and the recording element that chip form is manufactured from the recording element plate 10 of wafer format The cutting step (step S504) of plate 10.Then, is performed and recording element plate 10 is engaged corresponding support member 30 so that lid The engagement step (step S505) that part 20 is positioned face-to-face with support member 30.Finally, perform recording element plate 10 The support member 30 being joined to thereon is arranged in the deposition step (step S506) on flow channel formation part 210 side by side.

As the cover forming step (step S503) before engagement step (step S505) is middle the shape of cover 20 Into on the rear surface of recording element plate 10, the jet head liquid of second embodiment has been made.It is thereby possible to reduce any two The displacement width of the recording element plate 10 of adjacent positioned in a scanning direction, so that reduce the displacement width of injection tip row, and Machining accuracy and installation alignment precision independent of support member 30.Then result, can make adjacent with recording element plate 10 The problem of such as image at the corresponding position in region is uneven minimizes, and can produce high-quality image.

When by using silicon substrate formation cover 20, by using cover formed by the silicon substrate of wafer format 20 can be joined to the recording element plate 10 of wafer format.Therefore, it is joined to the corresponding of many chip forms with cover 20 The situation of recording element plate 10 is compared, it is possible to reduce step number.

When cover 20 is formed by using resin film, the cover 20 of form membrane can be joined to recording element plate 10 Chip to produce laminate.Then result, chip is based on to chip with forming cover 20 as described above by silicon substrate like that The situation that each single cover 20 is joined respectively into recording element plate 10 is compared, it is possible to reduce step number.

It should be noted that the manufacturing step that is merely exemplary of manufacturing step of the present embodiment description, and the present invention is never limited In above-mentioned manufacturing step.For example, performing injection tip forming step (step S501), dorsal part feed path forming step (step S502), cover forming step (step S503) and the order of cutting step (step S504) may not necessarily be above for The order of the present embodiment description.For manufacturing step, what sole requirement was met is, it is necessary to before engagement step (step S505) Perform cover forming step (step S503).

Jet head liquid 3 and recording equipment 1000 as described above can be in printer, duplicators, equipped with communication system Facsimile machine and word processor field with printer section in be applied.In addition, according to the liquid injection of the present invention First 3 and recording equipment 1000 can also be by combining industrial recording apparatus formed by various processing equipments in a complex manner It is applied in field.For example, jet head liquid can be in the field of production biochip, in electronic circuit print field etc. In be applied.

Therefore, according to the present invention, the edge of recording element plate is from the side for the support member for supporting corresponding recording element plate Edge is outstanding on the direction that support member is arranged in juxtaposition., can be by reference to higher than support member due to this arrangement Machining accuracy is adjacent to limit any two with installation alignment precision with the machining accuracy for the recording element plate for installing alignment precision The distance between recording element plate of positioning.Between then result, the recording element plate that any two adjacent positioned can be reduced Distance.

While the invention has been described with reference to exemplary embodiments, but it is to be understood that the invention is not restricted to disclosed Exemplary embodiment.Scope of the following claims should be endowed broadest explanation, so as to including all such modifications And equivalent structure and function.

Claims

1. a kind of jet head liquid, including：

First recording element plate and the second recording element plate, the first recording element plate and the second recording element plate have Recording element for producing energy, the energy will be used for the injection of liquid；

First support member and the second support member, first support member and second support member are used to support respectively The first recording element plate and the second recording element plate；And

First support member being arranged in juxtaposition and institute are carried on flow channel formation part, the flow channel formation part The second support member is stated,

Wherein, the edge for being positioned at that side of the second data board of the first recording element plate is from first support member The edge for being positioned at that side of the second support member protruded towards the second recording element plate.

2. jet head liquid according to claim 1,

Wherein, the edge for being positioned at that side of the first recording element plate of the second recording element plate is supported from described second The edge for being positioned at that side of the first support member of part is protruded towards the first recording element plate.

3. jet head liquid according to claim 1 or 2,

Wherein, liquid service duct formation positioning face-to-face with first support member in the first recording element plate On surface, to supply a liquid to the recording element, and

Wherein, cover is arranged between the first recording element plate and first support member, to form liquid supply A part for passage.

4. jet head liquid according to claim 3,

Wherein, the thickness of the cover is less than the thickness of the support member.

5. jet head liquid according to claim 3,

Wherein, the thickness of the cover is not more than 1mm.

6. jet head liquid according to claim 3,

Wherein, the cover is formed by using resin film.

7. jet head liquid according to claim 1 or 2,

Wherein, the first recording element plate include be used for spray liquid injection tip injection tip formation part and Substrate with recording element, and

Wherein, the substrate has the liquid supply for being used to supply a liquid to recording element logical on the rear surface of the substrate Road and for the liquids recovery passage from recording element withdrawal liquid, the rear surface is positioned to the surface with carrying recording element On the contrary, wherein, the recording element is arranged on the surface of the carrying recording element.

8. jet head liquid according to claim 1 or 2,

Wherein, the peripheral profile of the first recording element plate and the second recording element plate is parallelogram.

9. jet head liquid according to claim 8,

Wherein, the edge that the edge with being positioned at that side of the second recording element plate of the first recording element plate is abutted is not Corresponding edge relative to first support member is protruded.

10. jet head liquid according to claim 1 or 2,

Wherein, the jet head liquid is page width type jet head liquid, and

Wherein, for supplying liquid to the common feed path of the first recording element plate and the second recording element plate And for being arranged in from the shared recovery approach of the first recording element plate and the second recording element plate withdrawal liquid At flow channel formation part.

11. jet head liquid according to claim 1 or 2,

Wherein, the machining accuracy of the substrate of the first recording element plate is higher than the machining accuracy of first support member.

12. jet head liquid according to claim 1 or 2,

Wherein, for spraying the injection tip formation of liquid in the protuberance office of the first recording element plate.

13. jet head liquid according to claim 1 or 2,

Wherein, including multiple recording element plates of the first recording element plate and the second recording element plate are linearly arranged At flow channel formation part.

14. jet head liquid according to claim 1 or 2,

Wherein, the first recording element plate has balancing gate pit, has recording element, and institute respectively in the inside of each balancing gate pit The liquid in balancing gate pit is stated to circulate between the inside and outside of balancing gate pit.

15. a kind of liquid injection apparatus, the liquid injection apparatus includes jet head liquid and described for supplying a liquid to The conveying device of jet head liquid, the jet head liquid includes：

First recording element plate and the second recording element plate, the first recording element plate and the second recording element plate have The recording element of energy is produced, the energy will be used for the injection of liquid；