CN101157307A - Ink jet printer - Google Patents

Abstract

An ink jet printer including a stationary frame; a tank supporter which is provided in the stationary frame and which supports at least one ink storing tank storing at least one sort of ink; a recording head which records an image on a recording medium by ejecting a droplet of the ink, and which has at least one ink flow inlet; at least one ink delivering tank which delivers the ink and has at least one ink flow outlet; at least one ink supply tube which is provided between the tank supporter and the ink delivering tank and through which the ink is supplied from the ink storing tank to the recording head via the ink delivering tank, wherein the delivering tank provides at least a portion of at least one ink delivering channel connecting between the ink supply tube and the recording head; a head holder which includes a main portion holding the recording head and the ink delivering tank, and which is movable relative to the stationary frame so that the recording head records the image on the recording medium; and an ink-contact preventing portion which prevents the ink that leaks from the ink delivering channel, from contacting the recording head.

Description

Ink-jet printer

The explanation of dividing an application

The application is to be that March 9, application number in 2005 are 200510052705.9 and denomination of invention dividing an application for the Chinese invention patent application of " ink-jet printer " applying date.

The present invention is based on following Japanese patent application: the No.2004-207208 that the No.2004-082645 that the No.2004-082644 that submits in the No.2004-076062 that submits in the No.2004-06732 that submits in the No.2004-06735 that submitted on March 9th, 2004, on March 9th, 2004, on March 17th, 2004, on March 22nd, 2004, on March 22nd, 2004 submit to and on July 14th, 2004 submit to here is incorporated herein by reference their content.

Technical field

The present invention relates to a kind of ink-jet printer, particularly a kind of like this ink-jet printer, its China and Mexico offer the record head that is installed on the moving head fixator through ink supply Guan Congmo storage container.

Background technology

In the recent period, in order to reduce the integral thickness of ink-jet printer, have to reduce the demand of balladeur train thickness.That is to say have a kind of ink-jet printer of structure to make the demand that black storage container is not installed on balladeur train.One or more black storage containers need be provided on stationary bracket (as shell) for this reason and one or more China inks are offered the record head that is installed on the balladeur train from black storage container through one or more ink supply pipes.

For example, the open No.7-121583 of Japan Patent has disclosed a kind of pipe supply-type ink-jet printer, and it comprises: shell; Be installed to the black storage container on the shell removably; Flexible ink supply pipe; Removable balladeur train; With the record head that is installed on the balladeur train, China ink offers record head from black storage container through the ink supply pipe.

But when detecting above-mentioned ink-jet printer safeguarding and when for example changing the new record head, or when temporarily the pipe jointing part branch of ink supply pipe from balladeur train being pulled down in the install operation process in factory, China ink may leak out and fall on the balladeur train from the ink supply pipe.If China ink is stayed on the balladeur train during mobile balladeur train in record operation, thus so since the inertia China ink can move and thus China ink may get the record head record head wet can't the executive logging operation.More particularly, China ink may get wet record head adhesive segment and reduce cohesive force, electronic unit such as the flexible flat cable of perhaps may getting wet and cause electrical short.

Summary of the invention

If connect the ink supply pipe and thus the China ink coupling part that may leak out therefrom so just avoided the China ink that may leak out adverse effect effectively away from the part that record head is installed to record head from an end of ink supply pipe.

Therefore an object of the present invention is to provide a kind of ink-jet printer, it can avoid the adverse effect of China ink to record head.Another object of the present invention provides a kind of ink-jet printer, and it can avoid one or more parts (as adhesive segment and electronic unit) that are subject to the China ink influence to be got wet by China ink.

Describe below and explain some examples of various patterns of the present invention, that these patterns are considered in this application is required for protection (following just claim that in suitable place they are pattern required for protection).Pattern required for protection comprises each pattern corresponding with claims at least, but may also comprise the present invention's's (perhaps or even one or more other invention) the wideer or narrower pattern that contains.Below (1) number as claims to each pattern in the pattern of (11); and depend on other one or more patterns in suitable place, thereby help to understand pattern required for protection and point out and illustrate their key element or may making up of technical characterictic.But should be appreciated that the key element or technical characterictic or their combination that the invention is not restricted to following pattern, below description of them just for purposes of illustration.To consider not only when should also be appreciated that each pattern below understanding that directly related with it explanation also will consider the detailed explanation to the preferred embodiment of the present invention; and in other pattern required for protection, can be added to one or more key elements or one or more technical characterictic in any one following AD HOC or therefrom remove.

(1) a kind of ink-jet printer comprises:

A static support;

A container support, it is located in the stationary bracket, and it supports at least one the black storage container that holds at least a China ink;

A record head, it is by ink droplet document image on recording medium of the described at least a China ink of ejection, and it has at least one black inflow entrance;

At least one black transport box, it is carried described at least a China ink and has at least one black flow export;

At least one ink supply pipe, it is located between container support and described at least one black transport box, and described at least a China ink offers record head from described at least one black storage container through described at least one black transport box by the ink supply pipe, and wherein said at least one black transport box provides at least a portion that is connected at least one the black carrying path between described at least one ink supply pipe and the record head;

A cephalostat, it comprises the major part of fixed recording head and described at least one black transport box, and it is movably to make record head document image on recording medium with respect to stationary bracket; With

A China ink contact stops part, and it stops the black contact history head that leaks out from described at least one black carrying path.

In this ink-jet printer, even China ink may leak out, China ink contact stops part also to avoid the China ink record head of getting wet.Therefore, when China ink may be when black carrying path leaks out, this ink-jet printer can prevent that China ink from damaging the function of record head.

(2) a kind of ink-jet printer comprises:

A static support;

A container support, it supports at least one the black storage container that holds at least a China ink;

A record head, it is by ink droplet document image on recording medium of the described at least a China ink of ejection;

At least one black transport box, it is transported to record head to described at least a China ink;

At least one ink supply pipe, described at least a China ink offers record head from described at least one black storage container through described at least one black transport box by it; With

A cephalostat, it comprises the major part of fixed recording head and described at least one black transport box, and it is movably to make record head document image on recording medium with respect to stationary bracket,

Wherein said at least one black transport box comprises at least one coupling part, and described at least one ink supply pipe is connected to the outside that coupling part and coupling part are positioned at the major part of cephalostat.

In this ink-jet printer, the ink supply pipe be connected to black transport box and thus the China ink coupling part that may leak out therefrom away from the major part of cephalostat fixed recording head.Therefore, even China ink may leak out, the standing part of the black cephalostat of also can not getting wet.In addition, even the China ink that has leaked out may move to standing part, China ink also can become dry before arriving major part.Finally avoid the China ink record head of getting wet effectively.Therefore, when China ink may leak out from the connecting portion office that the ink supply pipe is connected to black transport box, this ink-jet printer can prevent that China ink from damaging the function of record head.

(3) a kind of ink-jet printer comprises:

A static support;

A container support, it supports at least one the black storage container that holds at least a China ink;

A record head, it is by ink droplet document image on recording medium of the described at least a China ink of ejection;

At least one black transport box, it comprises one first major part, first major part is transported to record head to described at least a China ink;

At least one ink supply pipe, described at least a China ink offers record head from described at least one black storage container through described at least one black transport box by it; With

A cephalostat, it comprises one second major part, the second major part fixed recording head and described at least one black transport box, and it is movably to make record head document image on recording medium with respect to stationary bracket,

Wherein said at least one black transport box also comprises one first extension, and first extension stretches out and is positioned at the outside of second major part of cephalostat from first major part, and

First extension of wherein said at least one black transport box comprises at least one coupling part, and described at least one ink supply pipe is connected to the coupling part.

In this ink-jet printer, the coupling part that the ink supply pipe is connected to black transport box is located in first extension of black transport box, and first extension is positioned at the second major part outside of the cephalostat of fixed recording head.Therefore the black coupling part that may leak out therefrom is away from record head.Therefore even China ink may leak out from the connecting portion office that the ink supply pipe is connected to black transport box, this ink-jet printer also can prevent the China ink record head of getting wet effectively.

(4) a kind of ink-jet printer comprises:

A static support;

A container support, it supports at least one the black storage container that holds at least a China ink;

A record head, it is by ink droplet document image on recording medium of the described at least a China ink of ejection;

At least one black transport box, it is transported to record head to described at least a China ink;

At least one ink supply pipe, described at least a China ink offers record head from described at least one black storage container through described at least one black transport box by it;

A cephalostat, its fixed recording head and it are movably to make record head document image on recording medium with respect to stationary bracket, wherein cephalostat comprises a diapire and record head is fixed on below the diapire, and on diapire, support described at least one black transport box, and wherein diapire has the opening that at least one passes bottom wall thickness formation; With

A China ink moves the prevention part, and it prevents that China ink from flowing to described at least one opening.

In this ink-jet printer, China ink moves and stops part can comprise a surrounding wall or a groove that the diapire opening is centered on wholly or in part, perhaps can comprise a circle segment that opening is centered on wholly or in part, scribble anti-black agent or waterproofing agent on this circle segment.Therefore, China ink move to stop part can be fully or incomplete (promptly partly) prevent that China ink from flowing to opening.China ink moves and stops part to prevent that China ink from flowing to the opening of the bottom wall thickness formation of passing cephalostat.Therefore, even a spot of China ink may flow to cephalostat, China ink also is difficult to enter opening.That is to say,, can prevent that also those China inks from entering opening even the China ink that has leaked out may flow to cephalostat.If the part that is subject to China ink influence or element (as adhesive segment or electronic unit) are arranged on below the diapire, just can avoid China ink get wet these parts or element.For example, if adhesive segment is arranged on below the opening, just can avoid the China ink adhesive segment of getting wet, and can avoid the decline of cohesive force.In addition, if electronic units such as flexible flat cable are arranged on below the opening, just can avoid China ink these electronic units of getting wet, and can avoid taking place electrical short.

(5) a kind of ink-jet printer comprises:

A static support;

A container support, it supports at least one the black storage container that holds at least a China ink;

A record head, it is by ink droplet document image on recording medium of the described at least a China ink of ejection;

At least one black transport box, it is transported to record head to described at least a China ink;

At least one ink supply pipe, described at least a China ink offers record head from described at least one black storage container through described at least one black transport box by it;

A cephalostat, its fixed recording head and it are movably to make record head document image on recording medium with respect to stationary bracket, wherein cephalostat comprises a diapire and record head is fixed on below the diapire, and on diapire, support described at least one black transport box, and wherein diapire has the opening that at least one passes bottom wall thickness formation; With

At least one stretching wall, it is to small part around described at least one opening and prevent that China ink from flowing to described at least one opening.

In this ink-jet printer, the opening that stretching wall forms around the bottom wall thickness of passing cephalostat wholly or in part.Therefore, even the China ink that has leaked may flow to cephalostat, wall can prevent that also China ink from entering opening.Owing to can be easy to wall is set, so can prevent at an easy rate that China ink from entering opening around opening.Therefore, if the part or the element (as adhesive segment or electronic unit) that are subject to China ink influence are arranged on below the diapire, just can avoid China ink get wet these parts or element.

(6) a kind of ink-jet printer comprises:

A record head, it has a plurality of inkjet nozzles that are arranged to multiple row, also has a plurality of black inflow entrances, and multiple China ink offers this a plurality of black inflow entrances, and these a plurality of black inflow entrances are communicated with the inkjet nozzle row respectively;

A plurality of black transport boxs, they have a plurality of black flow exports, and China ink flows to the black inflow entrance of record head respectively from these a plurality of black flow exports;

An elastic component, it has a plurality of through holes, each shape that each through hole had is corresponding with each shape of each shape of black flow export and black inflow entrance, and wherein elastic component places between record head and the black transport box, makes black flow export be communicated with black inflow entrance by through hole respectively;

A plurality of internal rib, they from (a) black transport box and (b) parts the record head stretch out, around the black flow export of (a) black transport box and (b) each corresponding one openend in the black inflow entrance of record head, and between them, define at least one first space together; With

At least one external rib, it from (a) black transport box and (b) the described parts the record head stretch out, and and at least a portion of at least one internal rib between them, define at least one second space together,

Wherein elastic component comprises a plurality of hermetic units, hermetic unit is respectively continuously around the through hole of elastic component, and is assembled to and makes in described at least one first space and described at least one second space that each corresponding one openend aligns in the black inflow entrance of through hole and the black flow export of described (a) black transport box of elastic component and (b) record head.

In this ink-jet printer, two ribs are around the black flow export of (a) black transport box and/or (b) the black inflow entrance of record head, and the hermetic unit of elastic component is assembled in the space that is located between two ribs.Therefore, can prevent the hermetic unit and two ribs disengagings or outward-dipping of elastic component effectively.Therefore, this ink-jet printer can have very high liquid seal degree around the black flow export of black transport box and the black inflow entrance of record head.

(7) a kind of hermetically-sealed construction comprises:

One first flow passage stopper, it defines a plurality of first flow passages with inflow entrance separately;

One second flow passage stopper, it defines a plurality of second flow passages with flow export separately, and each flow export is corresponding with each inflow entrance respectively; With

An elastic component, it has a plurality of through holes, and each through hole forms a line on first direction, and elastic component is clipped between the first flow passage stopper and the second flow passage stopper, make these through holes be communicated with flow export respectively and be communicated with inflow entrance respectively

Wherein each through hole of elastic component extends on the second direction perpendicular to first direction,

Wherein elastic component comprises a smooth base part, through hole passes base part and forms the plane that makes each axis of through hole be approximately perpendicular to the base part extension, and comprise at least one row first annular protrusion, each axis that first annular protrusion is parallel to through hole respectively from base part two apparent surfaces relative with the first and second flow passage stoppers at least one surface stretch out, and respectively around through hole, and

Each outside first annular protrusion that wherein is arranged in two outside first annular protrusions at each the opposed end place of described at least one row first annular protrusion on first direction all comprises an exterior section, it is arranged in the outside of that row through hole two corresponding outer through holes of outer through holes at place, two opposite ends on first direction, it extends along the respective external through hole, and has first thickness along the roughly mid portion of second direction at it, first thickness is thicker than second thickness of the other parts of described each outside first annular protrusion, along first direction tolerance, measure being parallel near the base part on base part and the direction perpendicular to described other parts by second thickness near base part for first thickness.

In the sealing structure, respectively around corresponding first annular protrusion of the respective through hole compression elastic piece of elastic component.Therefore, through hole can have very high liquid seal degree.In addition, each first annular protrusion in two outside first annular protrusions all comprises the exterior sections that are arranged in two the corresponding through hole of outer through holes outsides, it extends along corresponding outer through holes, and has the first thick thickness of second thickness than another part of each outside first annular protrusion at its roughly mid portion.Therefore exterior section is not easy outward-dipping.Therefore, even make on the exterior section on its outward-dipping direction, also can prevent the exterior section leak fluid of each outside first annular protrusion when extruding first annular protrusion and extruding force may be applied to.

(8) a kind of hermetically-sealed construction comprises:

One first flow passage stopper, it defines a plurality of first flow passages with inflow entrance separately;

One second flow passage stopper, it defines a plurality of second flow passages with flow export separately, and each flow export is corresponding with each inflow entrance respectively; With

An elastic component, it has a plurality of through holes, and each through hole is adjacent one another are on first direction, and elastic component is clipped between the first flow passage stopper and the second flow passage stopper, makes flow export be communicated with inflow entrance through through hole respectively,

Wherein elastic component comprises a base part, and through hole passes base part and forms the plane that makes each axis of through hole be approximately perpendicular to the base part extension,

Wherein elastic component also comprises a plurality of first annular protrusions, each axis that first annular protrusion is parallel to through hole stretches out on a surface from base part two apparent surfaces relative with the first and second flow passage stoppers respectively, and respectively around through hole, make that the basic interior perimeter surface with a corresponding through hole of interior perimeter surface of each first annular protrusion is continuous

Wherein elastic component also comprises a plurality of second annular protrusions, each axis that second annular protrusion is parallel to through hole stretches out on another surface from two apparent surfaces of base part respectively, and respectively around through hole, make the interior perimeter surface of each second annular protrusion outwards depart from the interior perimeter surface of a corresponding through hole

Wherein a flow passage stopper relative with second annular protrusion of elastic component has the groove that at least one holds second annular protrusion in the first and second flow passage stoppers,

Wherein at least one first annular protrusion comprises an exterior section, exterior section is relative with the interior section of first annular protrusion, and the interior section of first annular protrusion is adjacent with another first annular protrusion on first direction, and exterior section has first thickness thicker than second thickness of interior section, first thickness and second thickness are all being measured on first direction near the base part, and

Wherein under elastic component is clipped in state between the first and second flow passage stoppers, in the first and second flow passage stoppers another pushes first annular protrusion, and described at least one groove of the described flow passage stopper in the first and second flow passage stoppers pushes second annular protrusion, makes that the basic interior perimeter surface and the interior perimeter surface of a corresponding inflow entrance with a corresponding flow export of the interior perimeter surface of each through hole is continuous.

In the sealing structure, even another relative with first annular protrusion in first and second flow passage stoppers flow passage stopper may be flat, the interior perimeter surface of each through hole is basic to be kept continuously with the interior perimeter surface of a corresponding flow export and the interior perimeter surface of a corresponding inflow entrance, in this state, first and second annular protrusions pressurized all.Therefore through hole can have very high liquid seal degree.In addition, because the interior perimeter surface of each second annular protrusion outwards departs from the interior perimeter surface of a corresponding through hole, when the first and second annular protrusion pressurizeds, second annular protrusion can make corresponding first annular protrusion corresponding first annular protrusion of extruding on the direction that respective through hole tilts.But, because one or more first annular protrusions comprise an exterior section, exterior section is relative with the interior section of first annular protrusion, and the interior section of first annular protrusion is adjacent with another first annular protrusion on first direction, and exterior section has first thickness thicker than second thickness of interior section, just can prevent the inclination of exterior section, and the interior perimeter surface of each through hole is basic and the interior perimeter surface of the interior perimeter surface of a corresponding flow export and a corresponding inflow entrance keeps continuously.Therefore, can have very high fluid tightness.

(9) a kind of ink-jet printer comprises:

A record head, it has an actuator and at least one inkjet nozzle, sprays the ink droplet of at least a China ink to recording medium by at least one inkjet nozzle of operate actuator;

A cephalostat, its fixed recording head and move it and come with respect to recording medium moving recording head;

At least one black storage container, it stores described at least a China ink;

At least one ink supply pipe, it is located between described at least one black storage container and the record head, and it offers record head to described at least a China ink from described at least one black storage container;

At least one black transport box, it is installed on the cephalostat and the described at least a China ink that is provided by described at least one pipe of described at least one black storage container process and flows to record head; With

A jockey, it is located between the end and described at least one black transport box of two opposite ends of described at least one ink supply pipe, and connects a described end and described at least one black transport box of described at least one ink supply pipe,

Wherein jockey comprises:

A first pontes, it has at least one pipe jointing part branch, a described end tube connector coupling part of described at least one ink supply pipe, the first pontes also has at least one China ink outlet, and described at least a China ink flows out from the China ink outlet,

One second coupling part, it has at least one black import, by the described at least a China ink of black import from described at least one China ink outlet flow to described at least one black transport box and

A spring part, it applies elastic force and clamps first and second coupling parts, and thus first and second coupling parts is connected together.

In this ink-jet printer, first and second coupling parts utilize the elastic force of spring part to be connected to each other together.Therefore, jockey can have simple structure, and can shorten the required time of making jockey.

(10) a kind of ink-jet printer comprises:

A record head, it has an actuator and at least one inkjet nozzle, and by operate actuator, at least one inkjet nozzle sprays the ink droplet of at least a China ink to recording medium;

A cephalostat, its fixed recording head and slip-on head fixator come with respect to recording medium moving recording head;

At least one black storage container, it stores described at least a China ink;

At least one ink supply pipe, it is located between described at least one black storage container and the record head, and it offers record head to described at least a China ink from described at least one black storage container;

At least one black transport box, it is supported by cephalostat and it has a upper opening, and flowing to record head by described at least one black storage container through the described at least a China ink that described at least one ink supply pipe provides;

A flexible membrane, the upper opening of described at least one the black transport box of its sealing;

A circuitry substrate, it supports a circuit and separates with flexible membrane;

A cable, it passes the space extension between flexible membrane and the circuitry substrate and is electrically connected the actuator and the circuit of record head thus; With

At least one cable support part, its carrying cable make cable pass that space between flexible membrane and the circuitry substrate is extended and the upper surface that can not contact flexible membrane.

In this ink-jet printer, cable support part carrying cable makes cable pass that space between flexible membrane and the circuitry substrate is extended and the upper surface that can not contact flexible membrane.Therefore flexible membrane damping China ink is pressed the operation of fluctuation or is moved the restriction that just is not subjected to cable.In addition, can prevent to damage flexible membrane and cable.

(11) a kind of ink-jet printer comprises:

A record head, it has an actuator and at least one inkjet nozzle, sprays the ink droplet of at least a China ink to recording medium by at least one inkjet nozzle of operate actuator;

A cephalostat, its fixed recording head and move it and come with respect to recording medium moving recording head;

At least one black transport box, it is supported by cephalostat;

A circuitry substrate, it is supported by cephalostat and makes record head and circuitry substrate be positioned at the both sides of described at least one black transport box, and circuitry substrate supports a circuit;

A cable, it is electrically connected the actuator and the circuit of record head; With

At least one electronic unit, its be electrically connected circuit make described at least one electronic unit from circuitry substrate stretch out and be positioned at described at least one black transport box near,

Wherein cable is electrically connected the actuator and the circuit of record head, and extend in first space and second space between described at least one black transport box and the circuitry substrate passed simultaneously between described at least one black transport box and described at least one electronic unit.

In this ink-jet printer, the electronic unit connecting circuit make electronic unit from circuitry substrate stretch out and be positioned at black transport box near, and cable is electrically connected the actuator and the circuit of record head, and extend in first space and second space between black transport box and the circuitry substrate passed simultaneously between described black transport box and the electronic unit.Therefore, record head, black transport box, circuitry substrate and electronic unit can be located in the less space and can reduce the overall dimensions of those parts thus.In addition, cable can be located in the less space, and can not interfere with each other with those elements.

Two or more patterns in above-mentioned the second to the 11 ((2) are to (11)) pattern can make up mutually arbitrarily, promptly can be embodied in the independent ink-jet printer.For example all patterns of (2) to (11) can be combined and be embodied in the independent ink-jet printer.

Description of drawings

Can better understand above and other objects of the present invention, feature and advantage below in conjunction with accompanying drawing to the detailed description of the preferred embodiment of the present invention by reading, in the accompanying drawings:

Figure 1A is the schematic diagram as the associated components of the ink-jet printer 1 of first embodiment of the invention;

Figure 1B is the schematic diagram as the associated components of another ink-jet printer 100 of second embodiment of the invention;

Fig. 2 is the bottom view of the record head of ink-jet printer 1;

Fig. 3 is the decomposition diagram of record head, cephalostat, damping unit and the reinforced support of ink-jet printer;

Fig. 4 is the plane that the part of cephalostat and its fixing parts is cut open;

The cutaway view of Fig. 5 5-5 that is cephalostat in Fig. 4;

The cutaway view of Fig. 6 6-6 that is cephalostat in Fig. 4;

The cutaway view of Fig. 7 7-7 that is cephalostat in Fig. 4;

The cutaway view of Fig. 8 8-8 that is cephalostat in Fig. 4;

The cutaway view of Fig. 9 9-9 that is cephalostat in Fig. 4;

Figure 10 is the decomposition diagram of each extension, elastic sealing element, pipe joint and the spring part of the cephalostat of ink-jet printer 1 and damping unit;

Figure 11 is the schematic plan view of the extension of damping unit;

The view of Figure 12 has been explained encapsulant has been applied to mode among the slit-shaped openings 12e of diapire of cephalostat;

Figure 13 is the cutaway view of cephalostat of the improvement embodiment of ink-jet printer 1;

The cutaway view of Figure 14 has been explained damping unit, rubber bushing, reinforced support and record head mode connected to one another on cephalostat;

The cutaway view of Figure 15 A shows damping unit, rubber bushing, reinforced support and record head state connected to one another;

Figure 15 B is the cutaway view of 15B-15B in Figure 15 A;

Figure 16 is the bottom perspective view of damping unit;

Figure 17 looks cutaway view in the end of the black flow export of damping unit;

Figure 18 A is the plane of rubber bushing;

Figure 18 B is the cutaway view of 18B-18B in Figure 18 A;

Figure 18 C is the cutaway view of 18C-18C in Figure 18 A;

Figure 19 is the plane of the improvement embodiment of ink-jet printer 1;

Figure 20 A is the plane of damping unit of another embodiment of ink-jet printer 1;

Figure 20 B is the plane of the employed rubber bushing of improvement ink-jet printer of Figure 20 A;

Figure 20 C is the plane of the employed record head of improvement ink-jet printer of Figure 20 A;

Figure 21 A is the cutaway view of the employed rubber bushing of another improvement embodiment of ink-jet printer 1;

Figure 21 B is the plane of the rubber bushing of Figure 21 A;

Rubber bushing, reinforced support and the record head that the cutaway view of Figure 21 C shows damping unit, Figure 21 A state together that is connected to each other;

Figure 22 A is the enlarged perspective of the pipe joint of ink-jet printer 1;

Figure 22 B is the spring part of ink-jet printer 1 and the plane of two spring standing parts;

Figure 23 is that of ink-jet printer 1 improves the another kind of spring part of embodiment use and the cutaway view of cover piece;

Figure 24 is the perspective view of another improvement embodiment of ink-jet printer 1;

Figure 25 is the cephalostat of improvement ink-jet printer of Figure 24 and the decomposition diagram of circuitry substrate;

Figure 26 is the cutaway view of each parts of fixing of cephalostat and it;

Figure 27 A is the rib of improvement ink-jet printer of Figure 24 and the cutaway view of flexible flat cable;

Figure 27 B is another improvement embodiment of ink-jet printer 1; With

Figure 27 C is another improvement embodiment of ink-jet printer 1.

The specific embodiment

Describe the preferred embodiments of the present invention in detail below with reference to accompanying drawing.

Figure 1A, 2 and 3 shows the ink-jet printer 1 as first embodiment of the invention.Ink-jet printer 1 comprises record head 11, cephalostat 12, damping unit 14 and reinforced support 33.Cephalostat 12 fixed recording heads 11 and supporting damping device 14, but also play the effect of removable balladeur train.

As cephalostat 12 fixed recording heads 11 of balladeur train, and can move with respect to recording paper P as a kind of recording medium.Record head 11 is inkjet type record heads, wherein sprays ink droplet from each inkjet nozzle 16a, 16b, 16c, 16d, and has plate-like shape.Cephalostat 12 usefulness synthetic resin form, and supporting damping device 14.Four kinds of China inks offer damping unit 14, and are stored in the damping unit 14 through corresponding ink supply pipe 13a, 13b, 13c, 13d from four unshowned black storage containers respectively.Then, these four kinds of China inks flow to record head 11 from damping unit 14.The China ink storage container is detachably connected on the unshowned container support, and container support is located in the not shown shell of printer 1 (shell is the stationary bracket of printer 1), and each black storage container storage will offer the China ink of record head 11 in a large number.This ink-jet printer 1 is printed or the record full-colour image, and four black storage containers are stored black, cyan, carmetta and yellow China ink respectively for this reason.

Before and after a pair of guiding piece 2A, 2B support cephalostat 12 slidably as balladeur train, the front and rear that guiding piece 2A, 2B are located at shell makes two guiding piece 2A, the 2B longitudinal extension at shell.Before guiding piece 2A have along plane and be roughly L shaped cross section perpendicular to the slip of cephalostat 12 or moving direction; Back guiding piece 2B has the horizontal surface that extends on the slip of cephalostat 12 or moving direction.Cephalostat 12 connects the part of annular timing belt 4, and annular timing belt 4 is on driving and follow-up pulley 3A, 3B.When electro-motor 5 rotating drive pulley 3A and timing belt 4 moved, cephalostat 12 is vertically moving back and forth along shell on two guiding piece 2A, 2B.Cover piece 24 covers the upper end of cephalostat 12.Unshowned paper carrier is presented recording paper P along the direction A perpendicular to cephalostat 12 moving directions below record head 11, its move mode makes record head 11 write down full-colour image on recording paper P.This ink-jet printer 1 also comprises unshowned China ink collection part in addition, and it collects the China ink that record head 11 periodically sprays or sprays in order to prevent nozzle 16a-16d obstruction in the record operating process of record head 11; Also comprise a unshowned maintenance unit, it carries out the clean operation on the nozzle support surface of cleaning record head 11, the recovery operation of every kind of China ink of suction and the clear operation of removing bubble (or air) from damping unit 14 from record head 11 selectively.

As shown in Figure 3, record head 11 comprises a chamber unit 17, have in an end of chamber unit 17 respectively and four kinds of four black inflow entrance 18a, 18b, 18c, 18d that China ink is corresponding, they are arranged to row, and unlimited in the upper surface of chamber unit 17.Four kinds of China inks offer four groups of inkjet nozzle 16a-16d from black inflow entrance 18a-18d through unshowned each ink supply path respectively.Record head 11 also comprises a piezo-activator 19, and its driving or operating cavity chamber unit 17 are to spray ink droplet from each nozzle 16a-16d.As shown in Figure 3, the area of the upper opening of the black inflow entrance 18a corresponding with black ink (BK) is all bigger than the area of the upper opening of each the black inflow entrance among other black inflow entrance 18b, 18c, the 18d, China ink inflow entrance 18b, 18c, 18d respectively with cyan, carmetta and yellow China ink (C, M, Y) correspondence.

In record head 11, the plane profile of piezo-activator 19 is littler than chamber unit 17, and when piezo-activator 19 is stacked on the rear surface of chamber unit 17 or the upper surface, around piezo-activator 19 and comprise that the outer peripheral portion of upper surface of chamber unit 17 of each upper opening of black inflow entrance 18a-18d still comes out as a part of rear surface or the upper surface of record head 11.

The flexible flat cable 20 of applying voltage for piezo-activator 19 is fixed to the upper surface of piezo-activator 19 in its end, and driver IC (integrated circuit) 21 is electrically connected flexible flat cable 20.Flexible flat cable 20 is electrically connected the circuitry substrate 22 (Fig. 5) that is located at above the damping unit 14.Circuitry substrate 22 is connected with the not shown circuitry substrate that another is located in the shell by another flexible flat cable 20a.Because driver IC 21 produces heat, the heat sink 23 (Fig. 7) that is formed by aluminium alloy keeps in touch with driver IC 21, thereby makes driver IC 21 owing to heat sink 23 cools down.

Shown in Fig. 4 to 7, damping unit 14 comprises the box unit 25 as its major part, partition wall is divided into a plurality of 31a of dampening chamber, 31b, 31c, 31d as black conveying box to the inner space of box unit 25, and the 31a of dampening chamber, 31b, 31c, 31d are corresponding with black ink (BK), cyan ink (C), carmetta China ink (M) and yellow ink (Y) respectively.

The box unit 25 of damping unit 14 comprises the case shape nowel 26 that is open upwards; Be fixed to the top box 27 that covers nowel 26 upper openings on the nowel 26 simultaneously.Nowel 26 and top box 27 all are to form with the synthetic resin injection molding, and for example utilize ultra-sonic welded each other fluid be fixed together hermetically.Under nowel 26 and top box 27 states together fixed to one another, just define four above-mentioned 31a-31d of dampening chamber.Each dampening chamber among the 31a-31d of dampening chamber can constitute with a single chamber, also can constitute by the chamber that one or more flow channel is communicated with each other with two or more.Four 31a-31d of dampening chamber are communicated with four black flow export 32a, 32b, 32c, 32d respectively.

Cephalostat 12 comprises a diapire 12a, is basically parallel to diapire 12a and extends thereby record head 11 is bonded in the rear surface of record head 11 on the lower surface of diapire 12a or upper surface.On the diapire 12a of cephalostat 12, the damping unit 14 and the discharge valve apparatus 15 of four kinds of China inks of temporary transient storage is provided, discharge valve apparatus 15 is discharged the bubble (being air) of the 31a-31d of the dampening chamber collection of damping unit 14.

As shown in Figure 2, record head 11 has the two row nozzle 16a corresponding with black ink (BK), to be listed as the nozzle 16b corresponding with cyan ink (C), the row nozzle 16c corresponding with carmetta China ink (M) on its lower surface, with the row nozzle 16d corresponding with yellow ink (Y), top description is in proper order according to from left to right direction in the drawings.These of nozzle 16a-16d are listed in perpendicular to extending on the direction as the moving direction of the cephalostat 12 of balladeur train, and each nozzle 16a-16d all downwards open surface to the upper surface of recording paper P.

The black flow export 32a of damping unit 14 is arranged to row to 32d on the lower surface of nowel 26, make each black flow export 32a-32d all open wide at the height and position lower than the diapire 12a of cephalostat 12 downwards.Simultaneously, the chamber unit 17 of record head 11 has four black inflow entrance 18a to 18d on its upper surface, they respectively with the end connection of four kinds of corresponding unshowned ink supply paths (or menifold) of China ink.Four black inflow entrance 18a of chamber unit 17 align to 32d with the black flow export 32a of damping unit 14 respectively to 18d, make four black flow export 32a be communicated with to 18d with four black inflow entrance 18a by four elastic sealing elements 34 such as creeping hole 33b, 33c, 33d, 33e and gum filler part of reinforced support 33 respectively to 32d.

Record head 11 the form on the diapire 12a of cephalostat 12 of being fixed to makes reinforced support 33 be located between the lower surface of the rear surface of record head 11 or upper surface and diapire 12a.Reinforced support 33 has the not only thin but also flat shape of extending along the upper surface of record head 11, and has central opening 33a, but central opening 33a is than the bigger outline less than chamber unit 17 of the outline of piezo-activator 19.Therefore, reinforced support 33 utilizes bonding to be fixed to the rear surface or the upper surface of chamber unit 17, makes piezo-activator 19 and flexible flat cable 20 be arranged in the central opening 33a of reinforced support 33.

Reinforced support 33 usefulness metals (as the stainless steel SUS430 according to Japanese Industrial Standards) are made, and thicker and firmer than chamber unit 17.Reinforced support 33 has four creeping hole 33b-33es with the black inflow entrance 18a of chamber unit 17 to a corresponding end of 18d at it, they be arranged to row and be connected four black flow export 32a-32d of damping unit 14 and four black inflow entrance 18a-18d of chamber unit 17 between.

Have in its plane roughly that the protective layer 51 of U-shaped structure is connected on the reinforced support 33, make protective layer 51 around record head 11 and fill record head 11 thus and cephalostat 12 between the gap that stays.

The box unit 25 of damping unit 14 comprises extension 27a, and to extending laterally, this end is with relative to another end of the corresponding top box 27 of 32d with black flow export 32a from an end of top box 27 for it.Shown in Fig. 4,5 and 8, extension 27a has four internal ink flow channel 29a, 29b, 29c, 29d and four black flow channel 35a in outside, 35b, 35c, 35d, and they are corresponding with black ink (BK), cyan ink (C), carmetta China ink (M) and these four kinds China inks of yellow ink (Y) respectively.Four internal ink flow channel 29a-29d are communicated with to 31d with four 31a of dampening chamber respectively independently of one another and at their downstream sides separately, and be communicated with to 35d with four black flow channel 35a in outside respectively at their upstream sides separately, four black flow channel 35a in outside also are independent of each other to 35d.

As shown in Figure 8, limit four black flow channel 35a in outside to 35d by four paths that use 52 four of the sealings of first flexible membrane to be formed in the 27a lower surface of extension; Limit four internal ink flow channel 29a-29d by four paths that use 54 four of the sealings of second flexible membrane to be formed in the 27a upper surface of extension.As shown in Figure 8, four black flow channel 3 5a in outside communicate with each other by four intercommunicating pores 53 respectively to 35d and four internal ink flow channel 29a-29d.Thereby the zone that second flexible membrane 54 extends to above four exhaust passages 41 that describe below defines exhaust passage 41.

Shown in Fig. 8 and 11, four black flow channel 35a in outside are communicated with four black import 55a, 55b, 55c, 55d at their upstream sides separately to 35d, and black import 55a, 55b, 55c, 55d open wide in the upper surface 27c of the end 55 of the extension 27a of damping unit 14 (or its top box 27).On the upper surface of the end 55 of extension 27a, be provided with pipe joint 36, be provided with elastic sealing element 56 between pipe joint 36 and this upper surface.Therefore, four black import 55a of extension 27a pass through four China ink outlet 30a of four creeping hole 56a, 56b, 56c, 56d and pipe joints 36 of elastic sealing element 56 respectively to 55d, 30b, and 30c, 30d is communicated with.

As shown in Figure 8, cephalostat 12 comprises extension 12b, the extension 27a of extension 12b and the top box 27 of damping unit 14 corresponding and be positioned at it below.The extension 12b of cephalostat 12 from or the upper part of fixator case 12c of major part that hold damping unit 14 fixing as cephalostat 12 to extending laterally.

As shown in Figures 9 and 10, use spring part 37 to utilize elastic force to be connected on each extension 27a and 12b of damping unit 14 and cephalostat 12 having the pipe joint 36 of four China ink outlet 30a to 30d.

Therefore, pipe joint 36 comprises that four pipe jointing parts divide 36a, 36b, 36c, 36d, at the black flow channel 35a in four outsides that these four pipe jointing parts divide 36a, 36b, 36c, 36d place ink supply pipe 13a to be connected to 13d to be communicated with to 31d with four 31a of dampening chamber of damping unit 14 on 35d and four internal ink flow channel 29a and 29d, and pipe joint 36 is located at the end 55 of the extension 27a of damping unit 14, and end 55 is away from the fixator case 12c as the major part of cephalostat 12 fixed recording heads 11.Therefore, comprise that pipe jointing part divides the outside of the major part 12c of 36a is located at fixed recording head 11 to the pipe joint 36 of 36d cephalostat 12.

Shown in Fig. 8 and 10, the extension 12b of cephalostat 12 has the first black weir 12i as stretching wall at its upper surface, and when ink droplet was fallen extension 12b and gone up, the first black weir 12i prevented that China ink from moving to the fixator case 12c of cephalostat 12.In addition, as shown in Figure 8, the extension 27a of damping unit 14 has the elongation wall 27b as stretching wall on its lower surface, and it is positioned at the position than the more close fixator case of first black weir 12i 12c, and extend along the first black weir 12i, prevent that China ink from moving to fixator case 12c.In addition, the extension 12b of cephalostat 12 has the second black weir 12j as stretching wall on its upper surface, and it is than elongation wall 27b more close fixator case 12c, and extends along elongation wall 27b, prevents that China ink from moving to fixator case 12c.Therefore, two black weir 12i, 12j and elongation wall 27b define a maze-type structure together, and it prevents or limit ink flowing smoothly to the fixator case 12c of cephalostat 12.

As shown in figure 10, form the second black weir 12j and make whole formation of two opposing sidewalls of extension 12b of two opposed ends of the second black weir 12j and cephalostat 12.Therefore, the second black weir 12j can prevent fully that roughly China ink is from extension 12b flowing to fixator case 12c.

As shown in figure 13, the China ink that can be used in the last extension of whole distance between two opposing sidewalls of extension 12b of cephalostat 12 is caught groove 12m and is replaced the first black weir 12i and the second black weir 12j.In this case, the elongation wall 27b of the extension 27a of damping unit 14 extends to China ink and catches among the groove 12m, makes to leave suitable gap between the inner surface of outer surface that extends wall 27b and groove 12k.Groove 12m caught by China ink and elongation wall 27b can avoid China ink from extension 12b moving to fixator case 12c basically fully.

Therefore, between each extension of cephalostat 12 12b, 27a and damping unit 14, and near the fixator case 12c of cephalostat 12, weir 12i, 12j and wall 27b and/or groove 12m provide black mobile prevention part together, and its stops China ink moving to the fixator case 12c of cephalostat 12.

As shown in Figure 4, pipe joint 36 comprises that four pipe jointing parts divide 36a to 36d, and has four China ink outlet 30a to 30d.Four ink supply pipe 13a are communicated with above-mentioned four ink containers respectively in their ends separately to 13d, are detachably connected to four pipe jointing parts respectively in their another ends separately and divide 36a to 36d.Be connected to and the China ink pipe jointing part that may leak therefrom divides 36a to be provided with two extension 12b, 27a below 36d to 13d at ink supply pipe 13a, thereby receive the ink droplet that divides 36a to leak and fall to 13d from pipe jointing part to 36d and ink supply pipe 13a.But, can improve cephalostat 12 and damping unit 14 and only make and to divide 36a China ink from pipe jointing part to 36d and/or ink supply pipe 13a to the 13d leakage with a reception among two extension 12b, the 27a.The pipe joint 36 other leader 36e that also comprise as its whole part, it guides flexible flat cable 20a, and flexible flat cable 20a connects first circuit board 22 that is located on the cephalostat 12 and the unshowned second circuit board that is located in the shell.

Shown in Fig. 3 and 7, record head 11 is located at below the diapire 12a of fixator case 12c of cephalostat 12, and diapire 12a has a plurality of oblong openings 12d and elongate opening or slit 12e, also have a plurality of surrounding wall 12f, 12g in addition, each surrounding wall 12f, 12g all fully around or the part around a corresponding opening or slit 12d, 12e, thereby avoid China ink to enter opening or slit 12d, 12e.Therefore, each surrounding wall 12f, 12g provide a China ink to enter the prevention part, and China ink enters and stops part to stop China ink to enter a corresponding opening or slit 12d, 12e.

Each oblong openings 12d has filled binding agent S, thereby by bonding the upper surface of record head 11 is fixed on the lower surface of diapire 12a of cephalostat 12.Thereby use slit 12e to allow flexible flat cable 20 to run through the piezo-activator 19 that diapire 12a is electrically connected record head 11.Because each surrounding wall 12f, 12g prevent that China ink from entering a corresponding opening 12d, Mo Buhui gets wet and the binding agent S of chemical reaction does not take place the component of China ink substantially, so can not reduce the cohesive force of binding agent S.In addition, electrical short so can not take place in the various piece of flexible flat cable 20 and piezo-activator 19 because Mo Buhui gets wet.

The diapire 12a of cephalostat 12 has oblong openings 12d, makes these oblong openings 12d be arranged to two row along two of record head 11 than long side respectively.Surrounding wall 12g among surrounding wall 12f, the 12g is located between a row oblong openings 12d and the slit 12e, and prevents to move in the black oblong openings 12d in slit 12e and described row.Therefore, surrounding wall 12f, 12g have simple structure.

Surrounding wall 12f, 12g are fully around the slit 12e as diapire 12a opening, and flat 12h (Figure 12) is between slit 12e and surrounding wall 12f, 12g.Be full of encapsulant F in the gap of leaving between flexible flat cable 20 and slit 12e, it is fixed to flexible flat cable 20 on the diapire 12a and can also prevents that China ink is moved down into the downside of diapire 12a.Be moved down into the downside of diapire 12a owing to prevented China ink effectively, just avoid China ink that record head 11 is got wet reliably.

The top box 27 of the box unit 25 of damping unit 14 has four grooves at its upper surface, thereby second flexible membrane 54 has sealed the upper open end of these grooves and has defined respectively and four kinds of four exhaust passages 41 that China ink is corresponding, and these four exhaust passages 41 are communicated with to the top of 31d with corresponding four 31a of dampening chamber independently of one another and at the one end.Box unit 25 is passed in four exhaust passages 41, is communicated with the upper end of corresponding four steam vents 42 respectively at their other ends separately, and four steam vents 42 are corresponding with four kinds of China inks respectively, and the thickness formation of passing nowel 26.

Shown in Fig. 3 and 6, reinforced support 33 has two bolt hole 33f, 33g respectively in its two bights, and damping unit 14 comprise two respectively with two coupling part 14a that bolt hole 33f, 33g are corresponding, two coupling part 14a have connecting hole 14b separately.Two bolts 28 as securing member are screwed into two bolt hole 33f, 33g by two connecting hole 14b respectively, thereby damping unit 14 is fixed on the upper surface of reinforced support 33, and reinforced support 33 then is fixed to the lower surface of the diapire 12a of cephalostat 12.

As shown in Figure 7, each steam vent 42 in four steam vents 42 has all held valve member 44, thereby makes valve member 44 can move in each steam vent 42 to make each steam vent 42 be communicated with atmosphere or close being communicated with of each steam vent 42 and atmosphere.Valve member 44 comprises major diameter part 44a, minor diameter valve rod 44b and hermetic unit 44c, wherein minor diameter valve rod 44b extends downwards from the lower end of major diameter part 44a is whole, and hermetic unit 44c is assemblied in and makes the lower surface of hermetic unit 44c and major diameter part 44a keep in touch on the valve rod 44b.Each steam vent 42 has intercommunicating pore 42a at its axial mid portion, and the major diameter part 44a of valve member 44 opens and closes intercommunicating pore 42a.Each steam vent 42 also holds spring part 45 in addition, and spring part 45 is closed the direction upper offset valve member 44 of intercommunicating pore 42a at major diameter part 44a.

Spring part 45 is extruding valve member 44 on downward direction usually, and major diameter part 44a has just sealed intercommunicating pore 42 by hermetic unit 44c like this, and has closed air bleeding valve thus.Simultaneously, when the cephalostat 12 as balladeur train moves to holding fix, four extension bars of unshowned maintenance unit upwards push away each valve rod 44b of four valve members 44, each major diameter part 44a of such four valve members 44 and each hermetic unit 44c just leave each intercommunicating pore 42a of corresponding steam vent 42, have therefore just opened four air bleeding valves.In this state, driving or operate unshowned suction pump aspirates air (or bubble) that four 31a-31d of dampening chamber of damping unit 14 collect simultaneously and the air of suction is entered atmosphere.

Therefore, when from four black storage containers by four ink supply pipe 13a to 13d during to record head 11 ink supply, four kinds of China inks are temporarily stored to four 31a of dampening chamber 13d and the record head 11 to 31d by being located at four ink supply pipe 13a, thus bubble just nature separate with China ink and be moved upwards up to the 31a of dampening chamber each top (being air chamber) to 31d.Therefore, can utilize suction pump to discharge the air (or bubble) that the 31a of dampening chamber collects to 31d.

Chamber unit 17 as record head 11 parts comprises the nozzle lamella, and it has these nozzle rows of nozzle 16a-16d; Also comprise a plurality of lamellas, these lamellas are located at and make above the nozzle lamella that they pile up each other and bond together and limit the ink supply path that is communicated with to 16d with nozzle 16a.The nozzle lamella is by synthetic resin manufacturings such as polyimide resins, and each lamella is all formed by the nickel alloy steel lamella and have the thickness of 50 μ m to 150 μ m.The nozzle lamella has a large amount of nozzle 16, each nozzle have be approximately 25 μ m than minor diameter and be arranged to from 16a to 16d five row (Fig. 2), the nozzle very little distance that is separated from each other in every row.Five row nozzle 16a make in two row nozzle 16a or two row nozzle 16b, 16c to the longitudinal extension of 16d in nozzle lamella or chamber unit 17, nozzle interlaced arrangement or to arrange in a zigzag.

The whole lower surface of sheet stratotype piezo-activator 19 all precoating bonding lamella 19a, bonding lamella 19a is formed by the black impenetrable synthetic resin as a kind of binding agent.This piezo-activator 19 makes piezo-activator 19 and chamber unit 17 have suitable position relation by the upper surface that bonding is fixed to chamber unit 17.Flexible flat cable 20 is connected on the upper surface of piezo-activator 19, thereby a large amount of electric wires of flexible flat cable 20 are electrically connected a large amount of electrodes of piezo-activator 19.

Figure 12 shows a kind of form that is full of encapsulant F between flexible flat cable 20 and slit 12e in the gap that stays.More particularly, the lower end of pins 71 such as metal needle or animi resin pin is held in place on the flat 12h between slit 12e and surrounding wall 12f, the 12g, and the mid portion of pin 71 is supported on the upper end of surrounding wall 12f.Therefore, flat 12h and surrounding wall 12f play the effect of leader, and moving of guide needle 71 is applied to the whole space that stays between flexible flat cable 20 and the slit 12e to encapsulant F thereby be used for glossily.Therefore, utilize pin 71 can stably apply encapsulant F, prevent the careless mobile of pin 71 simultaneously and damage flexible flat cable 20.

Just in case China ink may enter slit 12e, the encapsulant F that fills slit 12e can prevent that China ink is moved down into the downside of the diapire 12a of cephalostat 12 by slit 12e.

In the present embodiment, when changing a new printing head 1, perhaps when assembling in factory during ink-jet printer 1 temporarily ink supply pipe 13a to 13d from pipe joint 36 when taking off, China ink may divide 36a to connect ink supply pipe 13a to the 36d from pipe jointing part to leak to the place of 13d.But, since be positioned at pipe jointing part on each extension 27a, the 12b of damping unit 14 and cephalostat 12 divide 36a to the residing position of 36d away from these following electronic units, as the piezo-activator 19 of record head 11, the flexible flat cable 20 of connection piezo-activator 19, or the driver IC 21 of connection flexible flat cable 20, those electronic units so Mo Buhui gets wet.In addition, even cephalostat 12 can tilt make fixator case 12c be positioned at below the 12b of extension that the China ink that black weir 12i, 12j and elongation wall 27b also prevent to have fallen on the extension 12b of cephalostat 12 moves to electronic unit.Just in case when China ink may move on the second black weir 12j, surrounding wall 12f, 12g prevented that China ink from entering opening and slit 12d, 12e.Therefore Mo Buhui binding agent S and the encapsulant F of filling opening and slit 12d, 12e that get wet, and can not get wet the piezo-activator 19 that is electrically connected to each other and the various piece of flexible flat cable 20 of China ink thus.

Therefore, the fault of they being got wet and producing owing to China ink can not appear in record head 11, particularly its electronic unit, as electrical short etc.

Figure 1B shows of the present invention second embodiment relevant with ink-jet printer 100.In this ink-jet printer 100, two leading axles 106,107 are located in the inner space as the shell 102 of the stationary bracket of ink-jet printer 100, and leading axle 106,107 supports the cephalostat 109 that also plays removable balladeur train effect together.Cephalostat 109 fixed recording heads 130, and cephalostat 109 is connected on the endless-belt 111 that electro-motor 110 moves.When driving or move electro-motor 110, cephalostat 109 moves on leading axle 106,107.

Four black storage container 105a, 105b, 105c, 105d are connected on the container holder or support member 103 that is fixed on the shell 102 removably, and the damping unit 140 that supports through each flexible ink supply pipe 114a, 114b, 114c, 114d connector fixator 109 of black storage container 105a, 105b, 105c, 105d.Four black storage container 105a, 105b, 105c, 105d store black ink (BK), cyan ink (C), carmetta China ink (M) and yellow ink (Y) respectively.

Have same structure respectively as cephalostat 109, record head 130 and the damping unit 140 of the ink-jet printer 100 of second embodiment and cephalostat 12, record head 11 and damping unit 14, therefore just omitted description these elements 109,130 and 140 as the ink-jet printer 1 of first embodiment.

Below with reference to Figure 14,15A, 15B, 16,17,18A, 18B and 18C ink-jet printer 1 as first embodiment is described in more detail.In the following description, a surface of the therefrom ink-jet of record head 11 is called its lower surface, a surface of the record head relative with lower surface 11 is called its upper surface.

That part of structure that damping unit 14 (or its nowel 26) centers on four black flow export 32a, 32b, 32c, 32d is described below.In the following description, arranging that the direction of four black flow export 32a to each lower open end of 32d calls first direction, calls second direction to the direction perpendicular to first direction.In addition, the outward direction that the center from the lower open end of each black flow export 32a-32d is called each black flow export to extraradial direction.

As shown in figure 16, it roughly is oval-shaped four black flow export 32a-32d that damping unit 14 has at its lower surface, they are communicated with four 31a-31d of dampening chamber respectively, thereby and black flow export 32a be arranged to single-row four black flow export 32a to 32d with certain spacing and extend parallel to each other to each main shaft of 32d.Each internal rib 61,62,63,64 each lower open end, internal rib 61,62,63,64 around four black flow export 32a to 32d have respectively with black flow export 32a to the corresponding ellipse of 32d.Four internal rib 61 to 64 lower surfaces from damping unit 14 stretch out downwards.As shown in figure 17, first internal rib 61 comprises two arch section 61a, 61b, these two arch section 61a, 61b are relatively and crooked on outward direction on the second direction, and first internal rib 61 also comprises two straight part 61c respect to one another, 61d on first direction.Similar with it, second internal rib 62 comprises two arch section 62a, 62b, these two arch section 62a, 62b are relatively and crooked on outward direction on the second direction, and second internal rib 62 also comprises two straight part 62c respect to one another, 62d on first direction; The 3rd internal rib 63 comprises two arch section 63a, 63b, these two arch section 63a, 63b are relatively and crooked on outward direction on the second direction, and the 3rd internal rib 63 also comprises two straight part 63c respect to one another, 63d on first direction; The 4th internal rib 64 comprises two arch section 64a, 64b, these two arch section 64a, 64b are relatively and crooked on outward direction on the second direction, and the 4th internal rib 64 also comprises two straight part 64c respect to one another, 64d on first direction.

Therefore on first direction, arranging three pairs of adjacent straight parts with certain interval, be that is to straight part 61d, 62c, that is to straight part 62d, 63c, and that is to straight part 63d, 64c, and defines three straight interior grooves 81,82,83 between them respectively.

Black ink flows out from the lower open end of the first black flow export 32a, the area of each lower open end of that the area that the lower open end of the first black flow export 32a has therefrom flows out than other China ink, other black flow export 32b, 32c, 32d is big, therefore each aperture area of other internal rib 62,63,64 of open area ratio of first internal rib, 61 qualifications is big, and each opening of internal rib 62,63,64 is measure-alike each other.

An independent public external rib 70 is around each outer surface of four internal rib 61 to 64, and public external rib 70 leaves those outer surface preset distances and stretches out downwards from the lower surface of damping unit 14.More particularly, forming external rib 70 makes external rib 70 relative with all arch section 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b and two straight part 61c, 64d, but it is not relative with six straight part 61d, 62c, 62d, 63c, 63d, 64c, promptly above-mentioned three pairs of adjacent straight parts.

In other words, in four black flow export 32a-32d in the lower open end of each black flow export, except one or two part of the adjacent lower open end of those and one or more adjacent lower open end, other lower open end is all centered on by two ribs 61 to 64 and 70.More particularly, external rib 70 comprises two straight part 71c, 74c, and they are being opened with each straight part 61c, 64d branch around two internal rib 61,64 that are positioned at each lower open end of two black flow export 32a, 32d of position, two opposite ends on the first direction on the outward direction.Each straight part 61c, 64d of two internal rib 61,64 is not adjacent with any other openend.Two straight part 71c, 74c roughly extend along the second direction vertical with first direction.In addition, external rib 70 comprises 8 arch section 71a, 71b, 72a, 72b, 73a, 73b, 74a, 74b, and they are roughly opened at upwardly extending each arch section of first party 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b branch with four internal rib 61 to 64 on outward direction.

8 arch section 71a, 71b, 72a, 72b, 73a, 73b, 74a, 74b and two straight part 71c, 74c of forming external rib 70 make external rib 70 have an independent continuous shape in its plane.Therefore, four internal rib 61 to 64 and external rib 70 define an independent continuous external slot 80 together between them, this external slot 80 with by three pairs of adjacent straight parts (be that to straight part 61d, 62c, that to straight part 62d, 63c and that to straight part 63d, 64c) three straight interior grooves 81,82,83 of limiting also are continuous.Elastic sealing element 34 (as rubber bushing) is assembled in the groove 81,82,83.

Shown in Figure 14 and 16, rubber bushing 34 has four through hole 34a, 34b, 34c, 34d, they are communicated with to each lower open end of 32d with four black flow export 32a, and the inner surface configuration that they have separately is corresponding respectively with the outer surfaces shape of four internal rib 61 to 64.Shown in Figure 18 A, to 34d, these all hermetic units all stretch out and are continuous each other from the upper surface of rubber bushing 34 around four through hole 34a for 8 arc hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b and 5 straight hermetic unit 46c, 49c, 45a, 45b, 45c.8 arc hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b and two straight hermetic unit 46c, 49c in position, two opposite ends lump together to have and is located at four internal rib 61 to 64 of damping unit 14 and the corresponding shape of shape of the external slot 80 between the external rib 70.Three be located at four through hole 34a to the straight hermetic unit 45a between the 34d, 45b, 45c respectively and the straight interior groove 81,82,83 that is located between the adjacent straight part 61d of three couples, 62c, 62d, 63c, 63d, 64c of four internal rib 61 to 64 have corresponding shape.

Rubber bushing 34 comprises four circumferential rib 34e, and circumferential rib 34e stretches out with the lower surface that reinforced support 33 contacts from rubber bushing 34, and centers on four through hole 34a of rubber bushing 34 each lower end to 34d.Under rubber bushing 34 and reinforced support 33 state of contact, four circumferential rib 34e center on four creeping hole 33b-33e of reinforced support 33 independently of one another.Distance W between the every couple of adjacent annular rib 34e is less than the height H of rubber bushing 34.

Rubber bushing 34 also comprises the extension 34f that is located in rubber bushing 34 longitudinal ends.If a personal finger is grabbed extension 34f, this person just can be assembled to rubber bushing 34 in the groove 80 to 83 or rubber bushing 34 effectively and take out from groove 80 to 83 so.

In the assembling process that is described below, rubber bushing 34 and damping unit 14 and record head 11 are assembled together.

As shown in figure 14, at first the upper surface 33h of reinforcement 33 is bonded on the lower surface 9p of diapire 12a of cephalostat 12.In advance record head 11 is bonded on the lower surface of reinforced support 33.

Subsequently, rubber bushing 34 is installed on the damping unit 14, make hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b, 46c, 49c, 45a, 45b, the 45c of rubber bushing 34 be assembled between the internal rib 61,62,63,64 that is formed on damping unit 14 and the internal rib 61 to 64 and the groove 80,81,82,83 between the external rib 70 of damping unit 14 in.On downward direction, damping unit 14 is inserted in the cephalostat 12 then, make the black flow export 32a of damping unit 14 be arranged in the opening 12q of the diapire 12a formation of passing cephalostat 12 to 32d, and two alignment pin 14c (Figure 16) are assembled to respectively in two locating holes of reinforced support 33, these two alignment pin 14c stretch out downwards from two parts of damping unit 14, are positioned at the opposite side of Na Liemo flow export 32a to 32d.Therefore, the lower surface of damping unit 14 is relative with reinforced support 33, makes the through hole 34a of rubber bushing 34 align to 33e with the creeping hole 33b of reinforced support 33 respectively to 34d.Subsequently, two connecting bolts 28 are inserted two connecting hole 14b respectively, two connecting hole 14b are formed near two alignment pin 14c of damping unit 14, and the appropriate section that two bolts 28 stretch out downwards from two connecting hole 14b are screwed into respectively two bolt hole 33f, the 33g of reinforced support 33.

Therefore, shown in Figure 15 A and 15B, damping unit 14 and record head 11 are fixed together by rubber bushing 34.

When connecting bolt 28 was screwed among bolt hole 33f, the 33g of reinforced support 33, damping unit 14 and record head 11 were exerted pressure to rubber bushing 34 together, so rubber bushing 34 is compressed in vertical direction.So that two straight hermetic unit 46c, 49c of rubber bushing 34 tilt to opposite outward direction on above-mentioned first direction respectively, and four arc hermetic unit 46a, 47a, 48a, 49a and four arc hermetic unit 46b, 47b, 48b, 49b tilt to opposite outward direction on second direction.

But rubber bushing 34 lays respectively at it and is assembled in the groove 80 that is formed between two ribs (i.e. two straight part 71c, 74c of each straight part 61c, 64c of two internal rib 61,64 and external rib 70) at two straight hermetic unit 46c, the 49c at the opposed end place of first direction.Therefore shown in Figure 15 A, can prevent effectively that two straight hermetic unit 46c, 49c are outward-dipping on first direction.

In addition, 8 arc hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b of rubber bushing 34 also are assembled in the groove 80 that is formed between two ribs, promptly among 8 arch section 71a, 71b of each arch section 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b and the external rib 70 of four internal rib 61 to 64,72a, 72b, 73a, 73b, 74a, the 74b.Therefore shown in Figure 15 B, prevented that effectively 8 arc hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b are outward-dipping on second direction.

In addition, three of rubber bushing 34 straight hermetic unit 45a, 45b, 45c are assembled to respectively in the straight groove 81,82,83 between the adjacent straight part 61d of three couple who is formed on four internal rib 61 to 64,62c, 62d, 63c, 63d, the 64c.Therefore, prevented that effectively among three straight hermetic unit 45a, 45b, the 45c any from tilting to its adjacent through hole 34a-34d.

Because each hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b, 46c, 49c, 45a, 45b, the 45c of rubber bushing 34 are compressed in vertical direction, so the size of each hermetic unit on the outward direction of correspondingly a through hole 34a-34d all increased, so each hermetic unit all closely contacts with external rib 70 with correspondingly an internal rib 61-64.In addition, each circumferential rib (being annular protrusion) 34e that is located on the lower surface of rubber bushing 34 is compressed around a creeping hole 33b-33e correspondingly of reinforced support 33, so each circumferential rib 34e closely contacts with reinforced support 33 maintenances.Therefore, four of damping unit 14 black flow export 32a are communicated with to 33e with four creeping hole 33b of reinforced support 33 hermetically to 32d height liquid.

Find out clearly in the face of the description of ink-jet printer 1 that in the past the two ribs that are separated from each other (i.e. four independent internal rib 61 to 64 and single public external rib 70) center on four black flow export 32a of damping unit 14 each lower open end to 32d on each outward direction of lower open end.Because hermetic unit 45a, 45b, 45c, 46a, 46b, 46c, 47a, 47b, 48a, 48b, 49a, 49b, the 49c of rubber bushing 34 are assembled in the groove 80,81,82,83 that is formed between two rib 61-64 and 70, so prevented that effectively hermetic unit from tilting to the outward direction of the lower open end of 32d at black flow export 32a.Therefore, can have extraordinary fluid tightness around the black flow export 32a of damping unit 14 to the lower open end ink-jet printer 1 of 32d.

Have ellipse respectively as the internal rib 61 to 64 of two rib parts, and the through hole 34a of rubber bushing 34 perimeter surface in each of 34d is assembled on each outer surface of those oval internal rib 61 to 64 around black flow export 32a to each lower open end of 32d.Because the area of the outer surface that has of each oval internal rib 61 to 64 is bigger than the area of the outer surface of the internal rib that does not have the continuous shape of ring-type, so each through hole 34a of rubber bushing 34 can contact and a bigger outer surface that oval internal rib 61-64 is corresponding to the interior perimeter surface of 34d.Therefore, can have extraordinary fluid tightness around the black flow export 32a of damping unit 14 to the lower open end ink-jet printer 1 of 32d.

Particularly, China ink flow export 32a is centered on by two ribs to those not adjacent with other openend parts of each lower open end of 32d, is promptly centered on by part 71a, 71b, 72a, 72b, 73a, 73b, 74a, 74b, 71c, the 74c of part 61a, the 61b of four internal rib 61 to 64,62a, 62b, 63a, 63b, 64a, 64b, 61c, 64d and external rib 70.Because hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b, 46c, the 49c of rubber bushing 34 are assembled in part 71a, 71b, 72a, 72b, 73a, 73b, 74a, 74b, the groove 80 between 71c, the 74c of part 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b, 61c, 64d and the said external rib 70 of above-mentioned internal rib 61 to 64, so can prevent effectively that those hermetic units are outward-dipping, just can prevent the reduction to the liquid seal degree of the lower open end of 32d thus effectively around black flow export 32a.

At first, the first and the 4th black flow export 32a, the 32d that are positioned at position, first direction opposite end obtain the protection of two ribs, are promptly protected by each straight part 61c, 64d of two internal rib 61,64 and two straight part 71c, 74c of external rib 70.Two couples of straight part 61c, 71c and 64d, 74c are positioned near the first of above-mentioned two lower open ends, first is relative with the second portion of two lower open ends at first direction, second portion is each lower open end of contiguous the second and the 3rd black flow export 32b, 32c then, thereby two pairs of straight parts extend upward in the second party perpendicular to first direction.Because hermetic unit 46c, the 49c of rubber bushing 34 are assembled between above-mentioned part 71c, the 74c of above-mentioned part 61c, the 64d of internal rib 61,64 and external rib 70, so can prevent effectively that those hermetic units are outward-dipping, just can prevent reduction thus effectively around the liquid seal degree of black flow export 32a, 32d.

In addition, each arch section 71a of external rib 70,71b, 72a, 72b, 73a, 73b, 74a, 74b protection are roughly at each arch section 61a, 61b, 62a, 62b, 63a, 63b, 64a, the 64b of upwardly extending four internal rib 61 to 64 of first party.Because hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, the 49b of rubber bushing 34 are assembled in the groove 80 between the above-mentioned arch section 71a, 71b, 72a, 72b, 73a, 73b, 74a, 74b of above-mentioned part 61a, 61b, 62a, 62b, 63a, 63b, 64a, 64b and the external rib 70 of internal rib 61 to 64, so can prevent effectively that those hermetic units are outward-dipping, just can prevent reduction thus effectively around the liquid seal degree of the lower open end of black flow export 32a-32d.

In addition, the external rib 70 that is positioned at around four black flow export 32a to four internal rib 61 to 64 outsides of each lower open end of 32d centers on all internal rib 61 to 64 continuously.Because hermetic unit 46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b, 46c, the 49c of rubber bushing 34 are assembled in the succeeding vat 80 that is formed between four internal rib 61 to 64 and the continuous external rib 70, so can prevent effectively that those hermetic units are outward-dipping.Therefore, can have extraordinary fluid tightness around black flow export 32a to each lower open end ink-jet printer 1 of 32d.

An improved embodiment of ink-jet printer 1 is described below with reference to Figure 19.The use reference number the same with employed reference number among the embodiment shown in Figure 17 and the 18A represented following two counter element or parts that improve embodiment of ink-jet printer 1, and omitted the description to those elements or parts.

In being shown in first improved embodiment of Figure 19, the external rib 200,201,202,203,204,205,206,207,208,209 that is interrupted with a group (promptly 10) substitutes the independent continuous external rib 70 shown in Figure 17.This group external rib comprises: a straight rib 200, and it is positioned at the outside of straight part 61c of internal rib 61 and relative with straight part 61c; Two arcuate rib 202,203, they are positioned at the outside of two arch section 61a, 61b of internal rib 61 and relative with arch section 61a, 61b respectively; Two arcuate rib 204,205, they are positioned at the outside of two arch section 62a, 62b of internal rib 62 and relative with arch section 62a, 62b respectively; Two arcuate rib 206,207, they are positioned at the outside of two arch section 63a, 63b of internal rib 63 and relative with arch section 63a, 63b respectively; Two arcuate rib 208,209, they are positioned at the outside of two arch section 64a, 64b of internal rib 64 and relative with arch section 64a, 64b respectively; With a straight rib 201, it is positioned at the outside of straight part 64d of internal rib 64 and relative with straight part 64d.These 10 external ribs, 200 to 209 lower surfaces from damping unit 14 stretch out downwards.

When damping unit 14 and record head 11 are pressed rubber bushing 34 in vertical direction, the end of rubber bushing 34 is forced outwardly inclination, particularly, two end 46c, 49c of rubber bushing 34 when first direction is observed, and four couples of end 46a, 46b, 47a, 47b, 48a, 48b, 49a, the 49b of rubber bushing 34 forced outward-dipping consumingly when second direction is observed.

But, improvement embodiment shown in Figure 11 has used 10 external ribs 200 to 209, correspondingly two rib 61-64 of this 10 couple and the residing position of 200-209 just in time be two end 46c, 49c of rubber bushing 34 when first direction is observed and when second direction is observed four couples of end 46a, 46b, 47a, 47b, 48a, 48b, 49a, the position at 49b place of rubber bushing 34, so those ends of rubber bushing 34 just are assembled in each groove that is limited by 10 pairs pairs of ribs.Therefore can prevent effectively that rubber bushing 34 all ends when first direction and second direction observation are outward-dipping.

Because the difference of improvement embodiment shown in Figure 19 and ink-jet printer 1 only is to have replaced with the external rib 200 to 209 of 10 interruptions an independent continuous external rib 70 of ink-jet printer 1 in improved embodiment, so improved embodiment can have the advantage the same with above-mentioned ink-jet printer 1.

Another improved embodiment of ink-jet printer 1 is described below with reference to Figure 20 A, 20B and 20C.

This improved embodiment uses damping unit 290 to replace the damping unit 14 that ink-jet printers 1 use, and record head 300 in fact be equivalent to be two all with the record head 11 similar record heads of ink-jet printer 1.

Shown in Figure 20 A, damping unit 290 has the lower open end of two black flow exports 291 respectively at its lower surface, and black ink (BK) therefrom flows out and these two black flow exports 291 belong to two groups of China ink flow exports respectively; The black flow export 292 that two cyan inks (C) therefrom flow out and they belong to first group of China ink flow export (being that group of left-hand side of Figure 20 A); The black flow export 293 that two carmetta China inks (M) therefrom flow out and they belong to second group of China ink flow export (being the right-hand group of Figure 20 A); The black flow export 294 that therefrom flows out with two yellow ink (Y) and they belong to first group and second group of China ink flow export respectively.291,294,292,292 and second groups of China inks of first group of China ink flow export flow export 291,294,293,293 is mutually symmetrical about the intermediate point L1 between two black flow exports 291.That is to say that if first group of China ink flow export 291,294,292,292 rotates 180 degree around a L1, first group of China ink flow export and second group of China ink flow export 291,294,293,293 overlap so.

Although the damping unit 290 that this improvement embodiment uses has the same with four internal rib 61-64 of the damping unit 14 of ink-jet printer 1 and an independent external rib 70 respectively four internal rib and an independent external rib that is used for every group of China ink flow export, but those inside and outside ribs are not shown in Figure 20 A, and this is just in order to be more readily understood.Therefore, if first group of inside and outside rib of first group of China ink flow export 291,294,292,292 rotates 180 degree around a L1, second group of inside and outside rib of first group of inside and outside rib and second group of China ink flow export 291,294,293,293 overlaps so.

Shown in Figure 20 C, record head 300 on each position corresponding, have with the black flow export of 8 of damping unit 14 291 to 294 two ink supply apertures 301 corresponding with black ink, with corresponding two ink supply apertures 302 of cyan ink, with corresponding two ink supply apertures 303 and two ink supply apertures 304 corresponding of carmetta China ink with yellow ink.In addition, record head 300 has four row nozzle 311 corresponding with black ink, that be positioned at the centre at its nozzle support surface 300a; Two row nozzle 314 corresponding with yellow ink, that be positioned at black ink nozzle 311 both sides; The nozzle 312 in two row, the one row outside corresponding with cyan ink, that be arranged in two row nozzles 314; The nozzle 313 in corresponding, that be arranged in nozzle 314 with the carmetta China ink another row outside with two row.Four kinds of China inks offer 10 row nozzles 311 to 314 from 8 black inflow entrances 301 to 304 through 10 black flow passages 306 respectively.Shown in Figure 20 C, each in two black flow exports 291 corresponding with black ink is communicated with two black flow passages 306; In 6 black flow exports 292,293,294 of other corresponding with cyan, carmetta and yellow ink each then is communicated with a black flow passage 306.

Be shown in rubber bushing 34 in Figure 20 B left-half and be assembled to around left-hand side and organize in the groove that above-mentioned first group of inside and outside rib (not shown) that black flow export 291,294,292 forms limit, be assembled in the groove that above-mentioned second group of inside and outside rib of forming around right-hand group China ink flow export 291,294,293 limit and be shown in another rubber bushing 34 in Figure 20 B right half part.Two rubber bushings 34 have the same shape, if the rubber bushing of left-hand side 34 rotates 180 degree around the axis vertical with Figure 20 B drawing paper, left-hand side rubber bushing 34 overlaps with right-hand side rubber bushing 34 so.

Because enough two duplicate rubber bushings 34 sealings of energy belong to each lower open end of 8 black flow exports 291 to 294 of two groups of China ink flow exports, the situation that has difform two rubber bushings with use is compared, and this improved ink-jet printer can reduce manufacturing cost.

Ink-jet printer 1 can also be done other improvement.For example can promptly only use two straight external ribs 200,201 further to improve the improvement embodiment shown in Figure 19 by saving 8 arc external ribs 202 to 209.Perhaps can only use 8 arc external ribs 202 to 209 further to improve this improvement embodiment by saving two straight external ribs 200,201.In addition, can also only use two straight external ribs 200,201 and other four arc external ribs 202,203,208,209 by saving four arc external ribs 204,205,206,207.If to have only a special end to tend to outward-dipping for rubber bushing 34 when compressing rubber lining 34, damping unit 4 only just can form and have two ribs in the position corresponding with the described special end of rubber bushing 34 so.

In addition, in being shown in the improvement embodiment of Figure 19, can use a plurality of cylindrical rib, triangular hill rib, square boss rib or prismatic ribs that extend in vertical direction.That is to say, can improve external rib 200 to 209 and make it to have arbitrary shape, as long as can avoid one or more ends of rubber bushing 34 outward-dipping effectively.

In addition, can improve each internal rib 61 to 64 and make it to have and be not oval-shaped other shape, as circle.In this case, the shape of the internal rib 61 to 64 after can improving shape that external rib 70 or external rib 200 to 209 make that they have and improving is corresponding.In addition, can replace each continuous internal rib 61 to 64, these intermittent portions are arranged in around the lower open end of a corresponding black flow export 32a-32d with a plurality of intermittent portions.

In a different embodiment of the present invention, replace the rubber bushing 34 of ink-jet printer 1 use with the elastic component (as rubber bushing) 450 that is shown in Figure 21 A, 21B and 22C.

Shown in Figure 21 B, elastic component 450 has four through hole 451a, 451b, 451c, 451d, they are arranged to row and are communicated with four black inflow entrance 18a, 18b, 18c, 18d of record head 11 (chamber unit 17) respectively on first direction, also respectively with four black flow export 32a of damping unit 14,32b, 32c, 32d connection.Therefore, elastic component 450 extends on first direction.Each through hole 451a roughly is oval to 451d, its minor axis at first direction and major axis in the second direction vertical with first direction.

Because the black flow export 32a that therefrom flows out of black ink (BK) is bigger than the area of other black flow export 32b, 32c, 32d in the present embodiment, so the through hole 451a that black ink (BK) therefrom flows through is bigger than the area of other through hole 451b, 451c, 451d.In addition, because reinforced support 33 is located on the upper surface of record head 11 and with record head 11 and combines, so the black inflow entrance 18a of record head 11 is communicated with to 33e with the creeping hole 33b of reinforced support 33 respectively to 18d, the through hole 451a of elastic component 450 is communicated with to 18d with the black inflow entrance 18a of record head 11 to 33e by the creeping hole 33b of reinforced support 33 respectively to 451d.But can omit reinforced support 33.

In more detail, elastic component 450 comprises a flat base part 455, it define through hole 451a to 451d and with the through hole 451a plane vertical to each axis B of 451d on extend.Elastic component 450 also comprises four first annular protrusions (circumferential rib) 456, and these ribs B that parallels to the axis respectively stretches out to 18d to four black inflow entrance 18a from base part 455, and respectively around four through hole 451a to 451d.Because first annular protrusion 456 is centered around the through hole 451a of the substantially elliptical that is arranged to row on the first direction to 451d, first annular protrusion 456 is arranged to row on first direction and each first annular protrusion 456 is roughly ellipse, its minor axis is at first direction, and major axis is in second direction.

As the axis B of a corresponding outer through holes from two outer through holes 451a, 451d during, be arranged near each outside first annular protrusion that first annular protrusion 456 is listed in two outsides, first annular protrusion 456 of two opposite ends on the first direction all has variation base part 455 thickness along radial measurement.More particularly, shown in Figure 21 B, each outside first annular protrusion in two outside first annular protrusions 456 all comprises one than thickness portion 456a, it has thickness W1 near the roughly mid portion of the elongation inner surface 452 of corresponding that outer through holes 451a, 451d, thickness W1 is thicker than the thickness W2 of all inner first annular protrusions 456 of the remainder of two outside first annular protrusions 456 and other two inside first annular protrusion 456 corresponding with two interior bone 451b, 451c.Thereby prevent first annular protrusion 456 protruding at first direction of two outsides effectively than thickness portion 456a.

Above-mentioned each outside first stretch out 456 remainder and inside first that each has less thickness W2 stretch out 456 comprise each in second party upwardly extending and on first direction straight elongated portion located adjacent one another and each in the shorter part of the upwardly extending arc of first party.

Shown in Figure 21 A, two outsides first stretch out 456 near the mid portion of the elongation inner surface 452 of outer through holes 451a, the 451d of correspondence, have the inverted triangle conical cross-section than thickness portion 456a, its thickness is reducing on the direction than the tip of thickness portion 456a gradually from base part 455.Therefore, on first direction, have the thickness of increase, and be not easy on first direction outward-dipping than thickness portion 456a.

In addition, leaving each longitudinal relative end increase gradually on the direction of the mid portion of elongation inner surface 452 of elongation inner surface 452 in the distance L (Figure 21 A) between the elongation inner surface 452 of each tip (crestal line) and corresponding outer through holes 451a, 451d than thickness portion 456a.In the present embodiment, the elongation inner surface 452 of two outer through holes 451a, 451d all roughly is plane or smooth, and two tips than the mid portion of thickness portion 456a (crestal line) all are bandy on first direction, and this is shown in broken lines in Figure 21 B.Therefore, can avoid outward-dipping than thickness portion 456a effectively.

Four first annular protrusions 456 have the annular shape that is fit to around four through hole 451a to 451d, they are independently of one another, and lump together and comprise three pairs of straight elongated portions, every pair adjacent and extend upward in second party on first direction, and this is shown in Figure 21 A and the 21B.

All extend along two outer through holes 451a, 451d respectively on second direction each end in two opposed ends of base part 455 on first direction, on first direction, has width W 0, and extend along each elongation inner surface 452 of two outer through holes 451a, 451d two are located on the end with width W 0 than corresponding one among the thickness portion 456a, a described like this side that is positioned at or is biased in respective external through hole 451a, 451d than thickness portion 456a has promptly stayed the free space of a broad with through hole 451a, 451d opposite position.

Basically is constant at each through hole 451a to the distance between the outer surface (being side surface) of interior perimeter surface and the base part 455 of 451d, promptly equals above-mentioned width W 0 substantially.In addition, every pair of distance between through hole adjacent on the first direction also equals width W 0 substantially, and every pair of adjacent through hole is meant that to through hole 451a, 451b here, and that is to through hole 451b, 451c, and that is to through hole 451c, 451d.Therefore, with respect to the whole interior week of each through hole 451a-451d, the inside 61 to 64 of base part 455 and damping unit 14, the exposure level constant of external rib 70 or even substantially.

Simultaneously, elastic component 450 also comprises four second annular protrusions 457, and they are parallel to four through hole 451a respectively stretches out to 32d to four black flow export 32a from base part 455 to each axis B of 451d, and respectively around four through hole 451a to 451d.Therefore, four second annular protrusions 457 are arranged to row on first direction.Be similar to hermetic unit 45a, 45b, 45c, 46a, 46b, 46c, 47a, 47b, 48a, 48b, 49a, 49b, the 49c shown in Figure 18 A, four second annular protrusions 457 are continuous each other on first direction.More particularly, be similar to three straight part 45a, 45b, the 45c shown in Figure 18 A, at corresponding that each internal straight between adjacent through-holes 451a and 451b, 451b and 451c or 451c and the 451d is partly located to combine at them at second annular protrusion 457 adjacent one another are on the first direction for every pair, make straight part that every pair of adjacent second annular protrusion 457 combines just in time stretch out above the centre position between dividing of each inside of 456, parallel straight portion corresponding a pair of adjacent first.In addition, shown in Figure 21 A, two outside second annular protrusions 457 that lay respectively at this row second each opposite end of annular protrusion 457 on first direction comprise each each outside corresponding than thickness portion 456a with two outsides, first annular protrusion 456, and each outside of this two outsides, second annular protrusion 457 all is arranged in the roughly mid portion of base part 455 respective end of two opposed ends on first direction.More particularly, stretch out from the upper surface of base part 455 each outside of two outside second annular protrusions 457, simultaneously with two outer through holes 451a, 451d in periphery (or side) surface of a corresponding through hole and base part 455 separate certain distance.

Four second annular protrusions 457 be assembled to be formed on three interior grooves 81,82,83 between four internal rib 61 to 64 and be formed between internal rib 61 to 64 and the external rib 70 and and interior groove 81 to 83 be in the continuous independent external slot 80.The degree of depth height of the aspect ratio groove 80 to 83 of second annular protrusion 457, under elastic component 450 and damping unit 14, reinforced support 33 being assembled together and being clipped in state between damping unit 14, the reinforced support 33, the power of inside and outside rib 61 to 64, the 70 extruding base part 455 of force rate that the basal surface of groove 80 to 83 pushes second annular protrusion 457 is big.Therefore, the through hole 451a of elastic component 450 can realize the liquid sealing independently of one another to 451d.

Elastic component 450 is the same with the top form of describing with reference to Figure 14 with the form that damping unit 14 and record head 11 (or reinforced support 33) are assembled together.

Under the state that elastic component 450 and damping unit 14 and record head 11 (or reinforced support 33) are assembled together, shown in Figure 21 C, go up extruding elastic component 450 in vertical direction (promptly being parallel to the direction of through hole 451a) to each axis of 451d B.More particularly, internal rib 61 to 64 keeps closely contacting with the upper surface of base part 455 with external rib 70, and each bottom strain or pressurized of four first annular protrusions 456.Except two outsides first stretch out 456 each have the inverted triangle cross section than thickness portion 456a, each bottom of four first annular protrusions 456 has semi-circular cross-section.Therefore, each black flow export 32a-32d is communicated with through a corresponding through hole 451a-451d and a corresponding creeping hole 33b-33e with a corresponding black inflow entrance 18a-18d respectively, thereby each interior perimeter surface of each black flow export, a described through hole, a described flow orifice and a described black inflow entrance is continuous each other substantially.Therefore, black flow export 32a to 32d, through hole 451a to 451d, creeping hole 33b do not have step part to 33e and black inflow entrance 18a to the coupling part that 18d is connected to each other together, so can prevent effectively that the bubble that produces in the China ink is trapped in those step parts.

In elastic component 450, every pair first annular protrusion 456 located adjacent one another on the first direction comprise corresponding that to adjacent through-holes 451a and 451b, 451b and 451c or 451c and 451d between and each internal straight part parallel to each other, and every pair of second annular protrusion 457 located adjacent one another on first direction comprises each internal straight part that is connected to each other or combines, and they are just in time above the centre position between corresponding that each inside to adjacent first projection 456, parallel straight part.Therefore, the pressure that is applied on the elastic component 450 is distributed on four first projectioies 456 equably, and can compress the inner parallel straight part of six of four first projectioies 456 and can be not downward-sloping in well-balanced mode thus.Therefore, elastic component 450 can keep closely contacting with reinforcement 33, and has improved liquid seal degree between the two.

Simultaneously, shown in Figure 21 A, each outside of departing from corresponding second annular protrusion 457 in two outside first annular protrusions 456 than the residing position of thickness portion 456a corresponding that through hole in two outer through holes 451a, 451d.Therefore, when damping unit 14 and reinforcement 33 extruding elastic components 450, each may tilt in the direction towards corresponding through hole 451a or 451d than thickness portion 456a.But as mentioned above, each character shape than thickness portion 456a can prevent that it from self tilting.Therefore, two outsides first stretch out 456 stretch out 456 than thickness portion 456a and remainder and other two inside first can uniform-compression and can keep closely contacting with the flat surfaces of reinforcement 33.Therefore, whole first annular protrusion 456 can demonstrate very high liquid seal degree.

Four second annular protrusions 457 of compression between damping unit 14 and base part 455, inside and outside at each second annular protrusion, 457 whole periphery like this, each rear surface of the basic the same inside and outside rib 61 to 64,70 of width all keeps closely contacting with the upper surface of base part 455.Therefore, each second annular protrusion 457 can demonstrate very high liquid seal degree.

Therefore, elastomer 450 can be connected with damping unit 14, record head 11 (or reinforced support 33) with very high liquid seal degree, and the China ink leakage does not take place.

In the present embodiment, elastic component 450 has first annular protrusion 456 at the black inflow entrance 18a of base part 455 and record head 11 on the 18d opposing lower surface.But, can improve elastic component 450 and make it have first annular protrusion 456 in the face of the black flow export 32a of damping unit 14 to the upper surface of 32d in base part 455, perhaps the upper and lower surface in base part 455 all has first annular protrusion 456.

Get back to Figure 10, seal 56 usefulness rubber elastomeric material form, and comprise a smooth base part 56e and four cylindrical seal part 57a, 57b, 57c, 57d that stretch out up and down from base part 56e.Four hermetic unit 57a align to 30d with China ink outlet 30a as the pipe joint 36 of the first pontes or first connector 85 respectively to each upper opening of 57d, and four hermetic unit 57a align to 55d with four black import 55a as (damping unit 14) extension 27a of second coupling part or second connector 86 respectively to each lower openings of 57d.

Provide together as the pipe joint 36 of the first pontes, as the extension 27a of second coupling part and the spring part 37 described in detail below ink supply pipe 13a has been connected to as the jockey on the damping unit 14 of black transport box to 13d.

Shown in Fig. 8 to 11, enlarge four of first connector 85 China ink outlet 30a to 30d holding four hermetic unit 57a each upper part to 57d, and four black import 55a that enlarge second connector 86 to 55d to hold four hermetic unit 57a each end portion to 57d.Being assembled to four China ink outlet 30a to each upper part of 57d at four hermetic unit 57a contacts to each ledge surface of 30d in each amplifier section of 30d and with four China ink outlet 30a, and four hermetic unit 57a to each end portion of 57d be assembled to four black import 55a in the amplifier section of 55d and with four black import 55a under each ledge surface state of contact of 55d, utilize the elastic force of spring part 37 that hermetic unit 57a is pressed between first connector 85 and second connector 86 to 57d.Therefore, four China ink outlet 30a are communicated with to 55d with four black import 55a hermetically to 30d difference liquid.

The wire that has suitable extent of elasticity by bending obtains spring part 37.More particularly, as shown in figure 10, spring part 37 comprises: two hook-shaped free ends 91,99; Two upper level arms 92,98 that stretch out from two free ends 91,99 respectively along horizontal direction roughly; Respectively from two upper level arms, 92,98 reclinate two vertical components 93,97; Two lower horizontal arms 94,96 that stretch out from each lower end of two vertical components 93,97 respectively along horizontal direction roughly; And be connected coupling part 95 between each ends of two lower horizontal arms 94,96.Therefore, in the shape that spring part 37 is had, two respective end that are roughly the part of U-shaped are joined to one another by the coupling part.

Shown in Figure 22 A, spring part 37 with as the upper surface of the pipe joint 36 of first connector 85, each side surface and the extension 12b of cephalostat 12 and the lower surface engages of extension 12b of pipe joint 36.Therefore, two upper level arms 92,98 of spring part 37 are together to the upper surface that presses down first connector 85, two lower horizontal arms 94,96 of spring part 37 and coupling part 95 are upwards rolled the lower surface of stretching part 12b together, thereby first connector 85 is connected to each other with second connector 86 and is in the same place, and seal 56 liquid that are clipped in simultaneously between two connectors 85,86 seal this two connectors 85,86 hermetically.In addition, pipe joint 36 and extension 12b keep in touch.

In addition, shown in Figure 22 A, but first connector 85 has the spring standing part 38,39 of a pair of conduct bonding part at its side surface 85a, and their can engage with two vertical components 93,97 of spring part 37 respectively.Shown in Figure 22 B, two spring standing parts 38,39 comprise each unci 38a, 39a, respectively unci 38a, 39a and side surface 85a are separated along side surface 85a each gap respect to one another 38b, 39b.

Make two vertical components 93 in spring part 37 strains, 97 in Figure 22 B arrow F1, under the state that moves towards each other on the relative direction shown in the F2, two vertical components 93,97 by two gap 38b, 39b inserts two unci 38a, each inner space 38c of 39a, among the 39c, discharge two vertical components 93 then, 97 to allow them at arrow F3, be moved away from each other such two vertical components 93 on the rightabout shown in the F4,97 just with along side surface 85a spring standing part 38 respect to one another, each inner surface 38d of 39,39d combines.Therefore can avoid spring part 37 to move or break away from first connector 85 and second connector 86.

In addition, as shown in Figure 9, align in vertical direction in two free ends 91,99 and the coupling part 95 of spring part 37, and have with reference to center line, with reference to center line on extending on the direction of the paper of drawing perpendicular to Fig. 9 and four hermetic unit 57a-57d of elastic sealing element 56 be arranged in reference to center line.Two free ends 91,99 to the upper surface 85b of the base part that presses down first connector 85 along reference center line appropriate section away from each other, and coupling part 95 upwards calendering stretch the straight line portion that the lower surface of part 12b extends along the reference center line.

Dividing 36a to be positioned at spring part 37 to 55d to 36d and four China ink outlet 30a to 30d and as four black import 55a of the extension 27a of second connector 86 as four pipe jointing parts of the pipe joint 36 of first connector 85 clamps on each vertical plane of the direction of two connectors 85,86.Therefore, the elastic force of spring part 37 is applied to four hermetic unit 57a of elastic sealing element 56 equably to 57d, thus four hermetic unit 57a to 57d seal equably respectively four pipe jointing parts divide 36a to 36d, four China ink outlet 30a to 30d or four black import 55a to 55d.

The extension 12b of cephalostat 12 is parallel to first connector 85 and second connector 86 extends.Second connector 86 has two two extension 86a, 86b that are assembled among two through hole 12r, the 12s at its lower surface, and two through hole 12r, 12s pass the thickness formation of extension 12b in vertical direction.First connector 85 has four extensions that extend respectively that comprise extension 85c in four through holes 58 on its lower surface, the thickness that four through holes 58 pass the flat base part 56e of elastic sealing element 56 forms in vertical direction, two extensions wherein are assembled to respectively in two holes 59,59, and these two holes are opened wide on the upper surface of second connector 86.Other extension as extension 85c, engages with the upper surface of second connector 86 (being extension 27a), thereby keeps the suitable spacing between first connector 85 and second connector 86.Therefore, on the 12b of extension, stack gradually second connector 86, elastic sealing element 56 and first connector 85, making three parts 86,56,85 be placed on the position that is relative to each other.That is to say that pipe joint 36 is located on the 12b of extension.

Then, spring part 37 is clamped pipe joint 36 and extension 12b.Therefore, first and second connectors 85,86 are connected to each other and elastic sealing element 56 are clipped between them, and pipe joint 36 and extension 12b also are connected to each other.That is to say that these three parts of first and second connectors 85,86 and extension 12b are connected to each other together.

Find out clearly that in the face of the description of ink-jet printer 1 first and second connectors 85,86 utilize the elastic force of spring part 37 to link together in the past.Therefore, compare by screw bolt and nut situation connected to one another, do not need to form the hole that allows bolt pass, or form screw bolt and nut with two connectors 85,86.Therefore pipe joint 36 can have simple structure.In addition, owing to do not need screw bolt and nut to be engaged with each other, can reduce the time of making ink-jet printer 1.

Owing to be mounting spring part 37 removably, only need pull down spring part 37 from first connector 85 and second connector 86, just can be separated from each other these two connectors 85,86.Therefore, can more easily connector 85,86 be safeguarded and change.

But first connector 85 comprises the spring standing part 38,39 of two conduct bonding parts, and spring part 37 can engage removably with them.That is to say that under the state that spring part 37 and spring standing part 38,39 are bonded together, spring part 37 can not come off from first connector 85 and second connector 86 naturally.In addition, because spring standing part 38,39 can be as being connected to spring part 37 mark on those connectors 85,86, so mounting spring part 37 at an easy rate.

In addition, second connector 86 can be used as whole manufacturing of a part of damping unit 14.Owing to make second connector 86 and compare with damping unit 14 can reduce like this and make the required step sum of second connector 86 with separating, so can reduce the production cost of ink-jet printer 1.

In addition, cephalostat 12 comprises and is parallel to the extension 12b that first connector 85 and second connector 86 extend, and spring part 37 clamps two connectors 85,86 and extension 12b, thereby together fixed to one another three parts 85,86,12b.Because spring part 37 is enough to fix these three parts 85,86,12b, compare with the situation of using a plurality of parts to fix these three parts 85,86,12b, can be simplified to fix the fixture of these three parts 85,86,12b, can also shorten and fix these three parts 85,86, required time of 12b.

In addition, four of first connector 85 pipe jointing parts divide four the black import 55as of 36a to 36d and four China ink outlet 30a to the 30d and second connector 86 to lay respectively at spring part 37 to 55d to clamp in each vertical plane of the direction of two connectors 85,86.Therefore, the elastic force of spring part 37 is applied to four hermetic unit 57a of elastic sealing element 56 equably to 57d, thus four hermetic unit 57a to 57d seal equably respectively four pipe jointing parts divide 36a to 36d, four China ink outlet 30a to 30d or four black import 55a to 55d.Therefore can avoid local reduction the in elastic force one or two sealing office in four hermetic unit 57a-57d of spring part 37, thereby the fluid tightness that can avoid elastic sealing element 56 is only four China ink outlet 30a corresponding one or more China ink outlets or four black import 55a local reduction of corresponding one or more black import departments in the 55d in the 30d.

Figure 23 shows an improvement embodiment of ink-jet printer 1, wherein uses a plurality of spring parts 592 to replace spring parts 37.In this embodiment, cover piece 591 covers the upper surface 85b of first connector 85 (pipe joint 36).But cover piece 591 has two bonding part 591a at each end portion of its two sidewall, but they can engage with two bonding parts of extension 12b respectively.Spring part 592 is located between the upper surface 85b of the lower surface 591b of cover piece 591 and first connector 85.Each spring part 592 is made of sheet spring etc., and is arranged in and arranges the direction of four China ink outlet 30a to 30d.Place at spring part 592 under the state between the upper surface 85b of the lower surface 591b of cover piece 591 and first connector 85, spring part 592 is pressurized in vertical direction.The elastic restoring force of each spring part 592 is to the upper surface 85b that presses down first connector 85.Therefore, cover piece 591 and spring part 592 are connected to pipe joint 36 on the 12b of extension together.Each spring part 592 can form with any suitable material, and as metal wire, sheet spring or resin etc., they also can form any suitable shape.

Can replace the independent spring part 37 that ink-jet printer 1 uses with a plurality of the same spring parts 37, these spring parts 37 are clamped pipe joint 36 and extension 12b at a plurality of clamped positions respectively together.In this case, even clamped position may be separated from each other, each spring part 37 also can be made of the spring part 37 that can only apply a quite little elastic force on a corresponding clamped position.Compare with using an independent situation that can apply the spring of quite big elastic force, because each spring part can only apply quite little elastic force, so can be connected to each spring part 37 on pipe joint 36 and the extension 12b with less power.

Can improve spring part 37 has and hook-shaped free end 91,99 similar three or more hooked ends it.In this case, upper surface 85b with first connector 85 engages three or more positions owing to improved spring part, compare with the spring part 37 that only has two hooked ends 91,99, improved spring part can compress wideer zone, and elasticity or the clamping force of improving spring part thus can be distributed on the wideer zone.

Two vertical components 93,97 of spring part 37 can be provided with outwardly directed wing member, just can catch these wing members with finger or instrument like this.In this case, even spring part 37 may be the spring part that produces very big elastic force, also can connect spring part 37 at an easy rate with gripping tube fitting 36 and extension 12b.

Spring standing part 38,39 can be located on the side surface of any parts among second connector 86 and the extension 12b.

Spring part 37 can only be used for clamping the first pontes 85 and second coupling part 86.In this case, can change the length of each vertical component 93,97 of spring part 37, and need not to consider the height (or thickness) of extension 12b according to the height (or thickness) of pipe joint 36.

Figure 24,25,26,27A show an improved embodiment of ink-jet printer 1.In the following description, use used same reference number in the ink-jet printer 1 to represent respective element among the improved embodiment and parts and omitted description of them.

Near the upper opening of cephalostat 12, promptly, be provided with the circuitry substrate 22 that forms with sturdy material at the relative upside of damping unit (being baffle-box) 14 and record head 11, it supports one or more circuit.More particularly, the upper end support circuit substrate 22 of the fixator case 12c of cephalostat 12, and the known jockey (not shown) of circuitry substrate 22 usefulness is connected on the cephalostat 12 removably.Between circuitry substrate 22 and damping unit 14, be provided with horizontal space 14e.Cover piece 24 is fixed on the cephalostat 12 so that cover circuitry substrate 22.

Circuitry substrate 22 circuit supported comprise from 14 two opposite sides of damping unit the electronic unit 681,682,683 that the lower surface of the circuitry substrate 22 on that side relative with discharge valve apparatus 15 stretches out downwards.More particularly, as shown in figure 25, electronic unit comprises the bypass electric capacity 681 of storing driver IC chip 21 required electric charges; Survey the paper detector 682 of recording paper P, it judges whether to exist recording paper P; With read the fixed timing mark on the banded fixed timing mark spare (not shown) that is fixed on the shell or the encoder 683 of sign.These electronic units 681,682,683 stretch out downwards as the lower surface of pendant from circuitry substrate 22, make electronic unit 681,682,683 be separated from each other.Under circuitry substrate 22 was installed to state on the cephalostat 12, cephalostat 12 had two inner rooms 687,688, and they hold paper detector 682 and bypass electric capacity 681 respectively.

The piezo-activator 19 of record head 11 utilizes flexible flat cable 20 to be electrically connected to circuitry substrate 22 (being its institute's circuit supported).IC chip 21 is electrically connected flexible flat cable 20.IC chip 21 the record data of the serial data form that provides by the main control unit (not shown) that is fixed on the shell convert to nozzle rows 16a to the corresponding parallel data of 16d, also parallel data is converted to the voltage signal that is fit to driving piezo-activator 19 in addition.

Flexible flat cable 20 passes the slit 12e by the diapire 12a formation of cephalostat 12, and enters the inner space of cephalostat 12.Flexible flat cable 20 further through being located at the vertical space 14d between the fixator case 12c of heat sink 23 and cephalostat 12 and be located at circuitry substrate 22 and damping unit 14 between horizontal space 14e, folding near the end surfaces 22b of circuitry substrate 22, and be connected to removably on the connector 685 on the upper surface 22c that is located at circuitry substrate 22.Owing to provide flexible flat cable 20 with above-mentioned form, flexible flat cable 20 does not contact with electronic unit 681,682,683 on any lower surface that is located at circuitry substrate 84.

Heat sink 23 is fixed near slit 12e and the position on the diapire 12a of cephalostat 12.As shown in figure 24, heat sink 23 comprises and is parallel to bottom 23a that diapire 12a extends and from the upwardly extending sidepiece 23b of bottom 23a.The elastic component 686 that is formed by rubber is pressed against IC chip 21 on the 23a of bottom, and the heat of IC chip 21 generations can be transmitted to bottom 23a like this.Therefore, the heat that can produce IC chip 21 effectively sheds.

Circuitry substrate 22 circuit supported (being wiring diagram) connect connector 685 and electronic unit 681,682,683 on the one hand, connect main control unit by another flexible flat cable 20a on the other hand.

As Figure 24,25,26 and 27A shown in, the upper end 27d from the top box 27 of damping unit 14 protrudes upward as two ribs 650,651 of cable support part.More particularly, shown in Figure 26 and 27A, two ribs 650,651 at first flatly stretch out from the upper end of the top box 27 of damping unit 14, upwards stretch into the horizontal space 14e between circuitry substrate 22 and the flexible membrane 54 then.Therefore, top box 27 whole formation of two ribs 650,651 and damping unit 14.

Shown in Figure 27 A, two ribs 650,651 are H1 from the height that the upper end 27d of the top box 27 of damping unit 14 protrudes upward.Even predetermined altitude H1 makes that flexible flat cable 20 may be sagging, the lower surface of flexible flat cable 20 does not contact the upper surface of flexible membrane 54 yet.For example, height H 1 is 1mm.Because two ribs 650,651 are arranged on the width of flexible flat cable 20 and the lower surface of supporting flexible flat cable 20 together, the distance between predetermined two ribs 650,651 makes it be no more than the width of flexible flat cable 20.The height H that the gap had 2 that the lower surface 22a of circuitry substrate 22 and flexible membrane 54 separate is greater than height H 1.

That is to say that when flexible flat cable 20 passed horizontal space 14e between circuitry substrate 22 and the flexible membrane 54 and extends, two ribs 650,651 remained on the lower surface of flexible flat cable 20 above the upper surface of flexible membrane 54 together.Therefore, even flexible flat cable 20 may be sagging, also prevent the upper surface of the lower surface contact flexible membrane 54 of flexible flat cable 20.

The description of facing the improvement embodiment of ink-jet printer 1 can clearly be found out in the past, electronic unit 681,682,683 is fixed to and makes electronic unit 681-683 stretch out and be positioned at the outside of damping unit 14 side direction downwards from circuitry substrate 22 on the circuitry substrate 22, and flexible flat cable 20 extends to circuitry substrate 22 through vertical space 14d between damping units 14 and the electronic unit 681-683 and the horizontal space 14e between damping unit 14 and the circuitry substrate 22 from piezo-activator 19.Therefore, can in a less space, provide record head 11, damping unit 14, circuitry substrate 22 and electronic unit 681-683, so just can reduce the overall dimensions of these elements.In this embodiment, any element that the flexible flat cable 20 that is provided can be got along well in these elements is interfered.

In addition, two ribs 650,651 are from the upper end 27d of the top box 27 of damping unit 14 protrudes upward horizontal space 14e between circuitry substrate 22 and the flexible membrane 54.Pass the flexible flat cable 20 that horizontal space 14e extends because two ribs 650,651 are mentioned together, the lower surface that just can prevent flexible flat cable 20 is sagging and contact with the upper surface of flexible membrane 54.

Permission flexible membrane 54 moves and is not subjected to flexible flat cable 20 constraints or restriction like this, and flexible membrane 54 can absorb the power variation that damping unit 14 China and Mexico press effectively thus.In addition, can prevent that flexible membrane 54 and flexible flat cable 20 from damaging.

Damping unit 14 has two ribs 650,651 that are separated from each other on flexible flat cable 20 widths.But, can replace two ribs 650,651 with a unshowned independent rib, single rib stretches out from the upper end 27d of the top box 27 of damping unit 14, and its extended position is corresponding to the width center of flexible flat cable 20.Even flexible flat cable 20 may be sagging, single rib also can prevent the upper surface of the lower surface contact flexible membrane 54 of flexible flat cable 20.

Can center on slit 12e with the wall the same, and use the encapsulant the same to fill slit 12e with encapsulant F with the surrounding wall 12f, the 12g that are shown in Fig. 7.

Below with reference to Figure 27 B and 27C other improvement embodiment of ink-jet printer 1 is described.

Shown in Figure 27 B, can replace two ribs 650,651 with a guiding piece 652 that is fixed on the circuitry substrate 22 lower surface 22a.Guiding piece 652 has the through hole 652a of supporting flexible flat cable 20, makes flexible flat cable 20 to pass from through hole 652a.Therefore guiding piece 652 can prevent that flexible flat cable 20 from contacting with flexible membrane 54.Thereby can go up guiding piece 652 to the lower surface 22a that two or more guiding pieces 652 are fixed to circuitry substrate 22 is separated from each other on the direction that flexible flat cable 20 extends in horizontal space 14e.In this case, these guiding pieces 652 supporting flexible flat cable 20 and prevent more reliably that thus flexible flat cable 20 is sagging or contact in wideer scope together with flexible membrane 54.

In addition, shown in Figure 27 C, can replace two ribs 650,651 with a pair of guiding piece 653,654, this is fixed on the lower surface 22a of circuitry substrate 22 guiding piece 653,654, makes them combine with opposed end on flexible flat cable 20 widths toward each other and respectively on the width of flexible flat cable 20.Therefore, thus two guiding pieces 653,654 together supporting flexible flat cable 20 prevent flexible flat cable 20 contact flexible membranes 54.Can make two pairs or more guiding piece 653,654 is fixed to those can on the direction that flexible flat cable 20 extends in horizontal space 14e, be separated from each other on the circuitry substrate 22 to guiding piece 653,654.In this case, those are to guiding piece 653,654 supporting flexible flat cable 20 and prevent more reliably that thus flexible flat cable 20 is sagging or contact with flexible membrane 54 in wideer scope together.Two guiding pieces 653,654 can be fixed to make on the circuitry substrate 22 two guiding pieces 653,654 not on the width of flexible flat cable 20 toward each other, promptly they stagger on the direction that flexible flat cable 20 extends each other.In this case, also supporting flexible flat cable 20 and prevent that thus flexible flat cable 20 is sagging or contact in wideer scope together of two guiding pieces 653,654 with flexible membrane 54.

Can be from above-mentioned rib 650,651, guiding piece 652 and that to selecting two or more support members the guiding piece 653,654, and can use together each other.

Rib 650,651, guiding piece 652 and that provide the cable support part to guiding piece 653,654.

Should be appreciated that the specific embodiment of the present invention can have other changes and improvements,, need not depart from the spirit and scope of the present invention defined in claims and just can realize these changes and improvements for this area professional.

Claims (16)

1. ink-jet printer comprises:

A static support;

A container support, described container support is located in the stationary bracket, and described container support supports at least one black storage container of at least a China ink of storage;

A record head, described record head is by ink droplet document image on recording medium of the described at least a China ink of ejection, and described record head has at least one black inflow entrance;

At least one black transport box, described at least one black transport box are carried described at least a China ink and are had at least one black flow export;

At least one ink supply pipe, described at least one ink supply pipe is located between container support and described at least one black transport box, and described at least a China ink offers record head from described at least one black storage container through described at least one black transport box by described at least one ink supply pipe, and wherein said at least one black transport box provides at least a portion that is connected at least one the black carrying path between described at least one ink supply pipe and the record head;

A cephalostat, described cephalostat comprises the major part of fixed recording head and described at least one black transport box, and described cephalostat is movably with respect to stationary bracket, thereby makes record head document image on recording medium; With

A China ink contact stops part, and described China ink contact stops part to stop the black contact history head that leaks out from described at least one black carrying path,

It is characterized in that,

Record head has a plurality of inkjet nozzles and a plurality of described black inflow entrance, and multiple described China ink offers a plurality of described black inflow entrances respectively and described a plurality of black inflow entrance is communicated with inkjet nozzle respectively,

Wherein ink-jet printer further comprises a black conveying box, and described black conveying box defines a plurality of described black transport boxs, and described black transport box has a plurality of described black flow exports, and China ink flows to the black inflow entrance of record head respectively from a plurality of described black flow exports,

Wherein ink-jet printer further comprises an elastic component, and described elastic component has a plurality of through holes, and the shape that each through hole had is corresponding with the shape of the shape of each black flow export and each black inflow entrance,

Wherein elastic component places between record head and the black conveying box, makes black flow export be communicated with black inflow entrance by through hole respectively,

Its China and Mexico's contact blocking portion branch comprises:

From black conveying box and record head one of a plurality of internal rib, described a plurality of internal rib stretches out, and around each openend of the black inflow entrance of the black flow export of corresponding black conveying box and record head, and defines at least one first space together; With

From black conveying box and record head described one of at least one external rib, described at least one external rib stretches out, and and at least one part of at least one internal rib between them, define at least one second space together, and

Wherein elastic component comprises a plurality of hermetic units, described a plurality of hermetic unit centers on the through hole of elastic component respectively continuously, and be assembled in described at least one first space and described at least one second space, make each openend of black inflow entrance of the black flow export of through hole and corresponding black conveying box of elastic component and record head align.

2. ink-jet printer as claimed in claim 1, wherein internal rib has annular shape separately, described annular shape is around each openend of the black inflow entrance of the black flow export of corresponding black conveying box and record head, and wherein the hermetic unit of elastic component is assembled to described at least one first space and described at least one second space, makes each inner surface of hermetic unit and each outer surface of internal rib keep in touch.

3. ink-jet printer as claimed in claim 1, wherein said at least one external rib is positioned at the outside of described at least a portion of each internal rib, and this part not internal rib with other is adjacent.

4. ink-jet printer as claimed in claim 1, wherein internal rib is arranged to row on first direction, and wherein said at least one external rib is arranged in the outside of exterior section of each internal rib of two internal rib, described two internal rib are positioned at two the opposed end places of this row internal rib on first direction, described exterior section interior section with them on first direction of described each internal rib in described two internal rib is relative, interior section then with other internal rib in one adjacent, and described exterior section extends upward in the second party perpendicular to first direction.

5. ink-jet printer as claimed in claim 4, wherein said at least one external rib is positioned at two outsides relatively partly of each internal rib of this row internal rib, and described two relatively partly extend upward on second direction toward each other and in first party.

6. ink-jet printer as claimed in claim 1, wherein said at least one external rib comprises a continuous rib, continuously rib continuously around internal rib and and internal rib define succeeding vat together as described at least one second space.

7. as the described ink-jet printer of any one claim in the claim 1 to 6, a plurality of through holes of wherein said elastic component form a line on first direction, wherein elastic component comprises a base part, through hole passes this base part and forms the plane that makes each axis of through hole be approximately perpendicular to the base part extension, and this elastic component also comprises at least one row first annular protrusion, each axis that first annular protrusion is parallel to through hole stretches out at least one surface from two apparent surfaces relative with record head and black conveying box of base part respectively, and respectively around through hole, and each outside first annular protrusion that wherein is arranged in two outside first annular protrusions at each the opposed end place of described at least one row first annular protrusion on first direction all comprises an exterior section, exterior section is arranged in the outside of this row through hole two corresponding outer through holes of outer through holes at each place, opposite end on first direction, and has first thickness, first thickness is thicker than second thickness of the other parts of described each outside first annular protrusion, first thickness is measured along first direction near base part, and second thickness is measured being parallel near the base part on base part and the direction perpendicular to described other parts.

8. ink-jet printer as claimed in claim 7, wherein each through hole of elastic component extends on the second direction perpendicular to first direction, and the exterior section of wherein said each outside first annular protrusion extends along described respective external through hole, and its roughly pars intermedia office has first thickness on second direction.

9. ink-jet printer as claimed in claim 8, the exterior section of wherein said each outside first annular protrusion has the trapezoid cross section in its roughly pars intermedia office on second direction, the thickness of this cross section on first direction is along reducing from the direction of base part to the exterior section crestal line.

10. ink-jet printer as claimed in claim 9, wherein said each outside first annular protrusion from base part stretch out make first direction the above the crestal line of exterior section of each outside first annular protrusion and the distance between the interior perimeter surface of described respective external through hole along with crestal line from each end of the opposite end of exterior section on second direction to the roughly mid portion of exterior section near and increase.

11. ink-jet printer as claimed in claim 7, wherein elastic component comprises described row first annular protrusion, they stretch out on a surface from base part and record head two apparent surfaces relative with black conveying box respectively, and respectively around through hole, the annular protrusion of winning is separated from each other on first direction

Wherein in described row first annular protrusion on first direction every pair first annular protrusion adjacent one another are comprise each interior section, interior section is adjacent one another are on the first direction and extend parallel to each other on second direction, and

The exterior section of wherein said each outside first annular protrusion stretches out from the corresponding end of base part the opposed end of first direction, makes exterior section nearer than the corresponding side surface in the opposite flank of base part at first direction from described respective external through hole.

12. ink-jet printer as claimed in claim 11, wherein elastic component also comprises row second annular protrusion, and their another surfaces from two apparent surfaces of base part are gone up and each axis of through hole stretches out abreast, and respectively around through hole,

Wherein in this row second annular protrusion on first direction every pair second annular protrusion of setting adjacent one another are comprise each interior section, centre position between two parallel interior sections of the residing position of interior section and corresponding a pair of first annular protrusion of setting adjacent one another are is corresponding, and

Wherein each outside second annular protrusion in two outside second annular protrusions at this each opposed end place of row second annular protrusion on first direction comprises an exterior section, and a corresponding end the roughly mid portion on first direction of exterior section from the opposed end of base part stretches out.

13. ink-jet printer as claimed in claim 7, wherein first annular protrusion stretches out from a surface described in two apparent surfaces of base part, and respectively around through hole, make that the basic interior perimeter surface with a corresponding through hole of interior perimeter surface of each first annular protrusion is continuous, wherein elastic component also comprises a plurality of second annular protrusions, second annular protrusion is parallel to each axis another surface from two apparent surfaces of base part of through hole and stretches out, and respectively around through hole, make the interior perimeter surface of each second annular protrusion outwards depart from the interior perimeter surface of a corresponding through hole, wherein in record head and the black conveying box relative with second annular protrusion of elastic component one have the groove that at least one holds second annular protrusion, wherein at least one first annular protrusion comprises exterior section, exterior section is relative with the described other parts of first annular protrusion, and the described other parts of first annular protrusion are adjacent with another first annular protrusion on first direction, and exterior section has first thickness thicker than second thickness of described other parts, first thickness and second thickness are all being measured on first direction near the base part, and wherein under elastic component is clipped in state between record head and the black conveying box, in record head and the black conveying box another pushes first annular protrusion, and described one described at least one groove in record head and the black conveying box pushes second annular protrusion, makes that the basic interior perimeter surface and the interior perimeter surface of a corresponding black inflow entrance with a corresponding black flow export of the interior perimeter surface of each through hole is continuous.

14. ink-jet printer as claimed in claim 13, wherein first annular protrusion is respectively around through hole, the annular protrusion of winning is separated from each other on first direction, and wherein second annular protrusion comprise various piece in the position corresponding with the centre position between first annular protrusion adjacent one another are on the first direction.

15. ink-jet printer as claimed in claim 13, wherein each through hole of elastic component extends on the second direction perpendicular to first direction, and the first of wherein said at least one first annular protrusion is positioned at the outside of a corresponding through hole on first direction, extend along respective through hole, and have first thickness along the roughly mid portion of second direction at it.

16. ink-jet printer as claimed in claim 13, wherein said at least one first annular protrusion stretches out from base part, make first direction the above the crestal line of exterior section of at least one first annular protrusion and the distance between the interior perimeter surface of described respective through hole along with crestal line from exterior section each end of the opposite end on the second direction to the roughly mid portion of exterior section on second direction near and increase.

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