CN1868751A - Ink cartridge for ink-jet printer - Google Patents

Abstract

This invention provides a print cartridge used in ink-jet printer. With the pressure cast by an air pressure pump, the print cartridge provides the printing ink for the printing head; inside the said print cartridge installs a printing ink bag, which packs ink inside and is formed by flexible material; between the outer part of the print cartridge and the said printing ink bag mounts a pressure room in which the pressure is produced by the air pressure pump; on the outer part of the print cartridge sets up a pressure air inlet which introduces pressure air produced by the air pressure pump; on the said printing ink bag installs an ink leading-out terminal which can lead out the ink from the printing ink bag; when the print cartridge is dismantled from the printer, the said pressure air inlet opens, so as to interconnect the said pressure room with the atmosphere, and the ink leading out terminal is closed. This invention is characterized in that the print cartridge can easily be assembled and dismantled, and the print cartridge and the constitute parts thereof can be easily reused, and thus saves resources.

Description

The print cartridge that is used for ink-jet printer

The present invention is denomination of invention the dividing an application for No. 200410080160.8 application for a patent for invention of " print cartridge that is used for ink-jet printer " of 01 month 15 days calendar year 2001 application.

Technical field

The invention relates to used in the ink-jet printer, supply with the print cartridge of printing ink and the invention of adopting the ink-jet printer of this print cartridge to printhead.

Background technology

Because noise is less during printing of inkjet printer, and can form highdensity tiny ink droplet, therefore be widely used in the various printings that comprise colour print now.

Ink-jet printer, general all have an ink jetting printing head that is contained on the carriage, moves in the chart width direction, and making the record-paper paper feeder vertically mobile with respect to the moving direction of printhead, printhead sprays ink droplet according to print data, at the enterprising line item of record-paper.

Can spray for example printhead of various ink droplets such as black, yellow, livid purple look, peony as on carriage, loading, then not only can carry out black and white and print, and can carry out panchromatic printing by changing the ejection ratio of each color ink.

On the other hand, in for example for office or this class printer of professional usefulness, in order to adapt to the needs of a large amount of printings, just must a large amount of print cartridge of configuration, therefore just produced print cartridge has been placed on printer on the ink container holder of being located at apparatus main body one side for example.

On the carriage that loads printhead assistant print cartridges is set, various printing ink are supplied with each assistant print cartridges by printing ink supply pipe from above-mentioned each print cartridge, supply with each printhead respectively from each assistant print cartridges again.

But the demand of the printer that social now last scanning distance to carriage is grown, can be printed on bigger paper is very big.In such printer, in order to improve treating capacity, the nozzle of printhead is more and more.

In addition, in order to improve treating capacity, needing can be in printing, successively from print cartridge to being contained in each assistant print cartridges supply printing ink on the carriage, stably supplying with the printer of printing ink to each printhead again from each assistant print cartridges.

In such printer, because the scanning distance of carriage is big, the extended distance of each printing ink supply pipe must increase.And because as mentioned above, it is many that the nozzle of printhead becomes, thus printing ink expend increase, the printing ink dynamic pressure (pressure loss) that connects in each printing ink supply pipe of print cartridge and assistant print cartridges increases, and has produced the technical task to the printing ink increment deficiency of assistant print cartridges.

One of scheme that solves above-mentioned technical task is, for example adds air pressure in print cartridge one side, with air pressure printing ink stream from print cartridge to assistant print cartridges takes place forcibly, thereby supplies with printing ink fully for assistant print cartridges.

Figure 36 is the sectional view of the used existing print cartridge structure of this class ink-jet printer of expression.In Figure 36, symbol 81 expressions constitute the shell of print cartridge gabarit, and these shell 81 usefulness synthetic resin are integrally formed by blowing (hollow molding), shape such as so-called wide-mouth bottle.

At its peristome 82, columniform cap cover part 84 by annulus 83 embeddings, above-mentioned cap cover part 84 and annulus 83 make and are in airtight conditions, formation balancing gate pit 85 shell 81 in the shell 81.

Central portion at columniform above-mentioned cap cover part 84, be formed with the printing ink lead division 86 that ball valve constitutes, printing ink in the Printing ink bag 87 that be placed in the shell 81, inside is packaged with printing ink, usefulness pliability material forms can lead to the outside via above-mentioned printing ink lead division 86.

In the part of above-mentioned cap cover part 84, be formed with air intake 89.In this air intake 89, adorning rubber bolt 88, at the central portion of this rubber bolt 88, offer at this print cartridge and printer is not carried out under the filling state by inaccessible through hole 88a.

According to such structure, when print cartridge carries out filling to printer, be arranged at the through hole 88a that hollow needle on the printer, that do not express among the figure can penetrate above-mentioned rubber bolt 88, forced air can be introduced above-mentioned balancing gate pit 85 by hollow needle.

Like this, forced air is introduced above-mentioned balancing gate pit 85 by hollow needle, and the printing ink that is encapsulated in the Printing ink bag 87 is under pressure, and is drawn out to the outside by printing ink lead division 86.

But the print cartridge with above-mentioned existing structure exists following several problem that should solve.

The 1st problem is, in having the print cartridge of above-mentioned existing structure, the shell that constitutes its gabarit is that blowing is integrated, so its structure as shown in figure 36, and Printing ink bag 87 is to be contained on the cylindrical key 84 that forms printing ink replenish valve 86 and air introducing valve 88 with being integral.

Key 84 is to insert under the state of shells 81 across the peristome 82 that is pressed into shell 81 by annulus 83 at the Printing ink bag 87 that does not encapsulate printing ink as yet.Then, inject Printing ink bag 87 from the outside with printing ink, make the commodity print cartridge by above-mentioned printing ink supply pipe 86.

Like this, in having the print cartridge of existing structure, be integrated by blowing owing to constitute the shell of its gabarit, therefore the Printing ink bag of very difficult packaged printing ink in advance is cased, must inject printing ink again in the operation afterwards in Printing ink bag.

Owing to when printer is worked, will stand certain pressure in the shell, so shell must be able to take this pressure, unlikely distortion.So in order to ensure the intensity of shell, shell is preferably made the shape of columniform so-called wide-mouth bottle for example shown in Figure 36.

But such profile exists the too big problem of shared volume, and this layout designs with regard to feasible this class printer that print cartridge of all kinds must be set up in parallel is troubling.

On the other hand, in order to ensure the intensity of shell, can consider to take to increase the method for the wall thickness of shell, but do the consumption that will increase the synthetic resin that constitutes shell like this, be difficult to save resource.

In addition,, can consider integrally formed reinforcement on the part of shell, but when adopting above-mentioned blow molding, it is quite difficult will forming reinforcement in for example enclosure in general in order to reduce the consumption of synthetic resin.

The 2nd problem is, be contained at print cartridge with above-mentioned existing structure carry out the printing ink supply in the printer, when from printer, taking off then, because the through hole 88a that forms on the above-mentioned rubber bolt 88 is directly inaccessible because of its elasticity, so balancing gate pit's 85 interior also residual forced airs that have.

Like this, the forced air that remains in the balancing gate pit 85 is in the state that Printing ink bag 87 is pressurizeed all the time.

Therefore, be not intended to or having a mind to, for example pressing when giving as security the above-mentioned ball that constitutes printing ink lead division 86 with Writing utensil equipped tip, the printing ink in the Printing ink bag in 87 just can spray, and it is made dirty on every side.

Even without carrying out aforesaid operations, also might have a spot of printing ink and spill from printing ink lead division 86.

So, for this class problem is prevented trouble before it happens, when print cartridge is taken off, must insert the through hole 88a of above-mentioned rubber bolt 88 from printer with the hollow needle of for example entry needle and so on, make the air pressure in the balancing gate pit 85 open on one's own initiative.

But above-mentioned pressure open operation can allow the user be pestered beyond endurance, and is difficult to be put to practicality.

In addition, under the keeping state when the print cartridge with above-mentioned existing structure be not contained in the printer, environment temperature at site of storage changes, when particularly environment temperature rises, air pressure in the balancing gate pit 85 also can rise, and can produce the problem that a spot of printing ink spills from printing ink lead division 86 equally.

On the other hand, make for the print cartridge that printing ink sends for forced air being introduced shell, naturally, its structure must be able to allow shell keep airtight conditions in long-term the use, particularly also to consider easy to assembly, and dismantle, re-use problem easily, now very high to the requirement of this respect.

In addition, adopted the ink-jet printer of print cartridge with said structure, as is generally known, being mainly used under the printing character data conditions, use black ink, be mainly used under the situation of colour print, use each color ink such as yellow, redness, livid purple look.

Each color ink as the front had illustrated, be encapsulated in the Printing ink bag of pliability material formation, and this Printing ink bag will provide with the form that is contained in the print cartridge shell that constitutes gabarit.The profile of each print cartridge is roughly similar, and the quantity of ink that is encapsulated in each bag is also roughly the same.

But, be under the situation of for example lteral data in the printed matter major part that printer is printed, the consumption and the frequency of utilization of colored ink are lower, therefore, compare with the black print cartridge, each colour ink box use that printing ink uses up during quite long.

Therefore, will occur in each colour ink box and use before printing ink uses up and since useful life to and must more renew the situation of print cartridge.

Otherwise under the more user mode of the printing of coloured image, the consumption and the frequency of utilization of black ink are lower, therefore, compare with colour ink box, the black print cartridge use that printing ink uses up during quite long.Similarly, although the situation that also has the printing ink useful life to arrive will take place in the black print cartridge.

Therefore, not only too high for user's operating cost, and since in discarded print cartridge remaining many printing ink, also to increase the burden of offal treatment.

In order to alleviate operating cost and offal treatment burden, can consider to provide the less print cartridge of quantity of ink of encapsulation in the print cartridge, can adopt adjusting device to reduce the encapsulation amount of printing ink in the print cartridge in this case.

Because print cartridge will be contained on the fixator of printer,,, must be same shape with how much haveing nothing to do of quantity of ink so place the outer shape of the print cartridge shell of Printing ink bag.Like this, in the print cartridge of the less printing ink of encapsulation, will produce bigger gap between print cartridge shell and the Printing ink bag.

Like this, under the situation about being vibrated when for example print cartridge is carried, Printing ink bag will move in the print cartridge shell, particularly under the situation that is subjected to stronger impact, may cause the problem of Printing ink bag breakage.

Also can consider to allow the measure-alike of print cartridge shell, be according to the size and shape in the quantity of ink change shell of encapsulation, but as adopting this method, the mould that the manufacturing shell is used etc. must be prepared the problem that this can cause production cost to rise again respectively.

In the printer that with forced air printing ink is extruded, can utilize selectively as mentioned above a large amount of and a spot of Printing ink bag from print cartridge, particularly under the situation that adopts a spot of print cartridge, just must in this print cartridge shell, introduce a large amount of forced airs.

Like this, under the situation that for example the printer interface energize is started working, and just can enter printable state for a long time, and so just can produce the problem that treating capacity reduces.

Summary of the invention

The present invention develops and finishes in order to solve above-mentioned problem, a kind ofly can simplify the print cartridge shell packaging technology that comprises Printing ink bag more and can easily the print cartridge shell dismounting of using up be re-used the print cartridge of saving resource thereby the 1st purpose of the present invention provides.

The 2nd purpose of the present invention provides a kind of print cartridge by air pressure supply printing ink, and this print cartridge can prevent the printing ink discharge and leakage that above-mentioned residual air pressure or environmental change cause.

The 3rd purpose of the present invention provides a kind ofly can stably guarantee airtight conditions in the shell, and the print cartridge of assembling, convenient disassembly.

The 4th purpose of the present invention provides a kind of can preventing effectively, and the print cartridge that particularly encapsulates a small amount of printing ink is contingent, cause the print cartridge of Printing ink bag breakage because of collision.

A further object of the invention provides a kind of printer that printing ink is extruded with forced air from print cartridge, even this printer can not reduce treating capacity yet when adopting a spot of print cartridge.

In addition, the present invention also provides a kind of ink-jet printer that is suitable for adopting above-mentioned print cartridge.

To achieve these goals, the 1st embodiment of cartridge of printer of the present invention is the used print cartridge of a kind of printer, after this print cartridge is coupled with the air pressure that is produced by air pressurization pump, effect by above-mentioned air pressure offers printhead with printing ink, the Printing ink bag that inner encapsulation printing ink is housed in the above-mentioned print cartridge, forms by the pliability material, the gabarit parts of print cartridge are formed by the 1st gabarit parts and the 2nd gabarit components bonding at least, be in airtight conditions each other, the air pressure that above-mentioned air pressurization pump produces adds in the balancing gate pit of above-mentioned gabarit parts and the formation of above-mentioned Printing ink bag.

In this case, above-mentioned the 1st gabarit parts and the 2nd gabarit parts are preferably by vibrating the deposited airtight conditions that is bonded with each other into.

Adopting this to vibrate when deposited, be preferably in periphery as the lower casing of above-mentioned the 1st gabarit parts, formation roughly becomes the continuous in deposited of one side along whole periphery, the periphery of shell on as above-mentioned the 2nd gabarit parts forms the above-mentioned continuous deposited a series of director dipoles of the friction of being joined by deposited face with the periphery of lower casing.

Be preferably in periphery as the lower casing of above-mentioned the 1st gabarit parts, along above-mentioned continuous periphery by deposited, integrally formed again forward position portion.

In addition, be preferably on the face of above-mentioned the 1st gabarit parts and the 2nd gabarit parts formation balancing gate pit, form the reinforcement that stops air pressure to cause distortion in advance.

The print cartridge of the 1st embodiment of the present invention also can adopt above-mentioned the 1st gabarit parts to apply the structure that is bonded with each other into airtight conditions by hot melt with the 2nd gabarit parts.

In this case, be preferably in periphery as the lower casing of above-mentioned the 1st gabarit parts, formation roughly becomes the continuous in deposited of one side along whole periphery, applies periphery above-mentioned continuous deposited by deposited hot melt of film and lower casing as the hot melt of above-mentioned the 2nd gabarit parts.

In addition, in this case, preferably has the strengthening part that covers up from the outside as the deposited film of the hot melt of above-mentioned the 2nd gabarit parts.

Be preferably in the periphery of above-mentioned strengthening part, integrally formed loading onto and the buckling parts that breaks away from as the periphery of the lower casing of above-mentioned the 1st gabarit parts.

In this case, preferably again on the face of the formation balancing gate pit of above-mentioned the 1st gabarit parts, form the reinforcement that stops air pressure to cause distortion in advance.

In addition, can also be at periphery as the lower casing of above-mentioned the 1st gabarit parts, formation is continuous in closed surface along whole periphery, at periphery as the lid of above-mentioned the 2nd gabarit parts, form with the periphery of lower casing above-mentioned continuously by the closed surface closed surface of driving fit mutually, on above-mentioned lid, the integrally formed buckling parts of loading onto and breaking away from the periphery of lower casing, by the effect of above-mentioned buckling parts, make to keep airtight conditions between shell and the lid mutually.

Print cartridge according to the 1st embodiment of the present invention with said structure, the gabarit parts are formed by the 1st gabarit parts and the 2nd gabarit components bonding at least, be in airtight conditions each other, the air pressure that air pressurization pump produces adds in the balancing gate pit of these gabarit parts and Printing ink bag formation.

Above-mentioned the 1st gabarit parts can be by vibrating the deposited airtight conditions that is bonded with each other into the 2nd gabarit parts.

The 1st gabarit parts also can adopt by hot melt with the 2nd gabarit parts and apply the structure that is bonded with each other into airtight conditions.

In addition, can also allow form on the closed surface that forms on the 2nd gabarit parts and the 1st gabarit parts continuous, make both keep airtight conditions mutually by the closed surface driving fit.

With lower casing for example as above-mentioned the 1st gabarit parts, with under the situation of lid for example as the 2nd gabarit parts, in lower casing, load onto the Printing ink bag that has encapsulated printing ink in advance, load onto lid with said method more in this state as last shell, make it become airtight conditions, promptly can be made into the commodity print cartridge.

Therefore, comprise that the packaging technology of the print cartridge shell of Printing ink bag can become simpler, can improve the productivity ratio of this product.

Because the gabarit of print cartridge is bonded into airtight conditions by the 1st gabarit parts and the 2nd gabarit parts and constitutes, the dismounting of the print cartridge of therefore having used up with re-use easily, can save resource.

To achieve these goals, after the print cartridge of the 2nd embodiment of the present invention is a kind of air pressure that is coupled with by the air pressurization pump generation, printing ink is offered the print cartridge of printhead by the effect of above-mentioned air pressure, inner encapsulation printing ink is housed in the above-mentioned print cartridge, the Printing ink bag that forms by the pliability material, between the gabarit parts of print cartridge and above-mentioned Printing ink bag, form and add the pressure by air pressure chamber that produces by air pressurization pump, on the gabarit parts of print cartridge, be formed with the forced air intake of introducing by the forced air of air pressurization pump generation, the printing ink lead division that printing ink can be drawn from Printing ink bag is housed on above-mentioned Printing ink bag, when print cartridge is pulled down on printer, above-mentioned forced air intake is open, above-mentioned balancing gate pit is communicated with atmosphere, and above-mentioned printing ink lead division is in closed condition.

In this case, above-mentioned forced air intake gabarit parts best and print cartridge are integrally formed, constitute by forming the air duct cylinder that is communicated with above-mentioned balancing gate pit.

Be contained in the printing ink lead division on the above-mentioned Printing ink bag, preferably have under situation about being contained on the printer, join, axially retreat, be in the valve part of opening with the connecting portion of printer, in above-mentioned valve part axial advancement when printer takes off, keep closed condition.

In this case, in a preferred embodiment, above-mentioned printing ink lead division is provided with and makes above-mentioned valve part rely on the spring members of axial advancement state.

Above-mentioned printing ink lead division preferably leads to the outside by the peristome that forms on the print cartridge gabarit parts from above-mentioned gabarit parts, and between above-mentioned peristome and printing ink lead division, annulus is set, also have the above-mentioned annulus of compressing, make the locked part that seals between peristome and the printing ink lead division.

Print cartridge according to the 2nd embodiment of the present invention with said structure, under situation about being contained on the printer, introduce the balancing gate pit by the forced air that air pressurization pump produces by the forced air intake, be encapsulated in printing ink in the Printing ink bag and be subjected to the effect of forced air, by the printing ink lead division to printer supply printing ink.

On the other hand, when printer took off, the forced air intake that forms on the gabarit parts of print cartridge, for example be made of cylinder was open at print cartridge, and above-mentioned balancing gate pit directly is communicated with atmosphere.Like this, the pressure that is accommodated in its inner Printing ink bag is released immediately.

So just, can prevent the problem that printing ink is discharged or leaked by the printing ink lead division that is contained on the Printing ink bag.

Because the keeping state downforce chamber of print cartridge in not being contained in printer the time also is communicated with atmosphere all the time, so can not be subjected to the influence of variation of ambient temperature fully.

The print cartridge of the 3rd embodiment of the present invention be a kind of by the pliability material form, the Printing ink bag of inner encapsulation printing ink, and hold above-mentioned Printing ink bag, form that the print cartridge shell of airtight conditions constitutes, forced air can be introduced the cartridge of printer in the above-mentioned shell under the state on being contained in printer, above-mentioned print cartridge shell is made of the 1st shell and the 2nd shell, and the fastening of the hook parts that form on the flange part that the 1st shell and the 2nd shell edge of opening by above-mentioned the 1st shell forms and the 2nd shell engages.

In a preferred embodiment, Printing ink bag is placed in above-mentioned the 1st shell, and the edge of opening of this shell seals with thin film component, forms airtight conditions, and above-mentioned the 2nd shell is to suppress that thin film component is subjected to forced air and the lid that bloats.

In this case, when being preferably formed in the 1st shell on the above-mentioned hook parts and engaging, cross the above-mentioned flange part that forms on the 1st shell with the 2nd shell, the taper surface that fastens with this flange part with fasten end difference.

Above-mentioned the 2nd shell preferably by the planar portions that plays the lid effect and perpendicularly intersect, integrally formed kink constitutes, and forms the hook parts in above-mentioned kink the inside.

In this case, preferably along several hook parts independently of above-mentioned kink the inside formation separated by a certain interval, on the planar portions of the 2nd shell,, form long narrow hole respectively along above-mentioned kink with several corresponding positions of hook parts independently.

In the preferred embodiment of the print cartridge with said structure, the edge of opening of the 1st shell is applied and seals by the thin film component hot melt.

According to the print cartridge of the 3rd embodiment of the present invention with said structure, the Printing ink bag of encapsulation printing ink that formed by the pliability material, inner under the state in being positioned over the 1st shell, is sealed by thin film component.

By engaging of the 2nd shell and the 1st shell of adorning Printing ink bag, the 2nd shell has played and has suppressed that thin film component is subjected to forced air and the effect of the lid that bloats.

Like this, can guarantee the airtight conditions of print cartridge, suppress thin film component effectively by the 2nd shell that plays the lid effect and bloated by forced air by above-mentioned thin film component.

On the other hand, when the 1st shell engages with the 2nd shell, the fastening of the hook parts that form on flange part that forms on the edge of opening by the 1st shell and the 2nd shell, both are bonded with each other, and constitute the gabarit of print cartridge.

Like this, the assembly and disassembly of print cartridge operation is easy to, and helps improving the re-using property of each parts.

Because the hook parts that form on the 2nd shell are formed at the planar portions that plays the lid effect and intersect vertically inside the kink, but also formed the taper surface and fastening end difference of crossing the above-mentioned flange part that forms on the 1st shell, the 1st gabarit engages by them with the 2nd gabarit, therefore both joints are easy to, and help making the assembly operation of print cartridge convenient.

Owing on the planar portions of the 2nd shell,, be formed with long narrow hole respectively, therefore can improve the pliability of the above-mentioned kink of each hook parts of configuration along above-mentioned kink with each corresponding position of hook parts independently.Retreatment effect when like this, the pliability of this kink taper surface that can play above-mentioned hook parts is effectively crossed the flange part of the 1st gabarit.

Like this, can avoid effectively when two shells that synthetic resin is formed engage, being subjected to irrational stress effect, the formation of hook parts is partly whitened or produce the crack.

According to print cartridge with said structure, load onto printer at it, after in shell, introducing forced air, the above-mentioned planar portions of the 2nd shell can be subjected to certain effect of distortion laterally by thin film component, the hook parts that form in the inside of the kink that intersects vertically with above-mentioned planar portions, be subjected to the metamorphosis of planar portions, can topple over to the inside.

Therefore, deeper the nip above-mentioned flange part of the 2nd shell of hook parts can keep both bonding states more firmly.

The print cartridge of the 4th embodiment of the present invention be a kind of by the pliability material form, the Printing ink bag of inner encapsulation printing ink, and the cartridge of printer that constitutes the print cartridge shell formation of the gabarit of holding above-mentioned Printing ink bag, the Printing ink bag that has in above-mentioned Printing ink bag is placed on the print cartridge shell press to be given as security parts, and the volume adjustment of giving as security parts by above-mentioned pressure is encapsulated in the quantity of ink in the Printing ink bag.

In a preferred embodiment, the bag shape that roughly rectangular four bandings of above-mentioned Printing ink bag close, the Printing ink bag in this Printing ink bag is placed on the print cartridge shell is pressed and given as security parts is shaped as frames that central portion has window, the pressure of shaped as frame is given as security parts and is pressed four limits of giving as security Printing ink bag respectively.

In this case, above-mentioned pressure give as security parts relative with four limits of Printing ink bag to face preferably to the inclined plane of the window attenuation of central portion formation.

The preferably some curved surfaces in above-mentioned inclined plane, and the most handy elastomeric material of above-mentioned pressure signature parts is made.

On the other hand, have the print cartridge of said structure, its print cartridge shell is airtight conditions preferably, under the state that is contained on the printer, in above-mentioned shell, introduce forced air after, Printing ink bag is promptly pressurizeed by air pressure.

In this case, above-mentioned print cartridge shell preferably is made of the 1st shell and the 2nd shell, Printing ink bag is positioned in above-mentioned the 1st shell with pressing the signature parts, promptly form airtight conditions with thin film component after with the sealing of the edge of opening of this shell, above-mentioned the 2nd shell works to suppress that thin film component is subjected to forced air and the lid that bloats simultaneously.

In addition, be preferably on the 2nd shell to form and have when above-mentioned the 1st shell engages with the 2nd shell, the taper surface that cross flange part that the edge of opening of the 1st shell forms, fastens with this flange part and the hook parts of fastening end difference.

Armpit is according to the print cartridge with the 4th embodiment of the present invention of said structure, the Printing ink bag of encapsulation printing ink that form by the pliability material, inner, give as security parts with the pressure of this Printing ink bag and be positioned in the 1st shell, by pressing the volume of giving as security parts that the quantity of ink that is encapsulated in the Printing ink bag is adjusted.

In other words be to be ready to the some kinds of different pressures of volume to give as security parts, select to press the signature parts, be contained in the print cartridge shell, make Printing ink bag in shell, not have bigger gap, almost shell is taken according to the quantity of ink that is encapsulated in the Printing ink bag.

Like this, although having to have more, the encapsulation amount of printing ink lacks, but all can stop Printing ink bag to move freely in the print cartridge shell effectively, so just can avoid recited above and be collided when print cartridge transports, Printing ink bag moves freely in the print cartridge shell and causes the impaired problem of Printing ink bag.

In this case, give as security parts by the above-mentioned pressure that adopts central portion to be formed with window, the Printing ink bag that the inside of bag shape the is packaged with printing ink circumference outside the portion in the central just can be given as security parts by above-mentioned pressure and keep.

Therefore, press the signature parts reasonably to place in the enclosure, help when for example being collided, keeping better Printing ink bag along the profile of Printing ink bag.

Adopt said structure as the print cartridge of in the print cartridge shell, introducing forced air, then, therefore the amount of introducing the forced air in the print cartridge shell can be determined within the specific limits because the volume of the pressure of placing signature parts is to select according to the quantity of ink that is encapsulated in the Printing ink bag.

Like this,, also can avoid the long-time holding state after printer is connected working power, help improving treating capacity even used the print cartridge of low capacity.

At last, can adorn, be equipped with tearing open the ink-jet printer of the present invention of print cartridge with said structure, has the printhead that is contained on the carriage, moves back and forth at the width of record-paper, and the printing ink supply that is contained on the carriage, accepts to come from print cartridge by the printing ink feed channel with above-mentioned printhead, supply with the assistant print cartridges of printing ink to above-mentioned printhead, the effect of the air pressure of printing ink by adding to above-mentioned print cartridge, from the print cartridge supply to above-mentioned assistant print cartridges.

In this case, the printing ink feed channel from above-mentioned print cartridge to assistant print cartridges is preferably by there being flexual printing ink supply pipe to constitute.

In a preferred embodiment, in the printing ink feed channel between above-mentioned print cartridge and assistant print cartridges, be provided with the printing ink replenish valve, above-mentioned printing ink replenish valve opens and closes according to the control signal that the quantity of ink checkout gear that detects the quantity of ink in the assistant print cartridges generates.

On the cartridge holder that loads above-mentioned print cartridge dismantledly, preferably have and adorning under the state of print cartridge, be close to the outer peripheral face of the cylinder that forms the air duct that is communicated with the balancing gate pit of print cartridge, connected annular seal parts.

On the other hand, in a preferred embodiment, on the cartridge holder that loads above-mentioned print cartridge dismantledly, the printing ink lead division that has under the state of having loaded onto print cartridge with print cartridge joins, axially retreat, become the switch valve of opening, above-mentioned switch valve is not loaded onto under the state of print cartridge at cartridge holder, axial advancement keeps closed condition.

In this case, above-mentioned switch valve preferably has the hollow needle that forms printing ink introducing hole, and be mounted slidably outside in above-mentioned hollow needle, do not load onto under the state of print cartridge at cartridge holder, be subjected to the elastic force of elastomeric element and move to the slide unit that the formed printing ink of inaccessible above-mentioned hollow needle is introduced the ring-type in hole.

The above-mentioned ink-jet printer of having loaded onto print cartridge of the present invention can carry out necessity, printing ink supply fully to the assistant print cartridges that is loaded on the carriage by the effect of forced air.

Like this, even will not influenced by the dynamic pressure of printing ink supply pipe, print continuously from print cartridge by the printer of flexual printing ink supply pipe to assistant print cartridges supply printing ink.

Owing to do not load onto under the state of print cartridge being provided with on the cartridge holder of printer at cartridge holder, axial advancement, the switch valve that keeps closed condition, therefore can stop effectively at cartridge holder and not load onto under the state of print cartridge printing ink, thereby prevent that printing ink from polluting from assistant print cartridges adverse current, leakage.

Description of drawings

Fig. 1 is the vertical view of an example that expression can be used the ink-jet printer of print cartridge of the present invention.

Fig. 2 is the schematic diagram of expression from the print cartridge of printer shown in Figure 1 to the ink supply system of printhead.

Fig. 3 is the stereogram that expression constitutes the lower casing structure of print cartridge gabarit of the present invention.

Fig. 4 is the stereogram that expression constitutes the last shell mechanism of print cartridge gabarit of the present invention.

Fig. 5 (A) and Fig. 5 (B) are the enlarged drawings in the bight of Fig. 3 and each shell shown in Figure 4.

Fig. 6 is that expression depositedly will be gone up the sectional view that shell engages with lower casing by vibrating.

Fig. 7 is the sectional view of seeing from the A-A alignment direction of arrow of Fig. 6.

Fig. 8 (A) and Fig. 8 (B) are that expression is gone up shell and lower casing and vibrated part enlarged diagram when deposited.

Fig. 9 (A) and Fig. 9 (B) part enlarged diagram when to be expression with hot melt apply film and be deposited over above the lower casing opening.

Figure 10 be form on the closed surface that forms on the lid and the lower casing by the mutual driving fit of closed surface, keep the schematic diagram of airtight conditions.

Figure 11 is the expression print cartridge unloads state from the cartridge holder of printer a sectional view.

Figure 12 is the sectional view that the expression print cartridge is loaded onto the cartridge holder state of printer.

Figure 13 is the stereogram of the surface structure of expression print cartridge of the present invention.

Figure 14 is the print cartridge amplification sectional view of seeing from the B-B alignment direction of arrow of Figure 13.

Figure 15 is the stereogram that is placed on the Printing ink bag structure in the print cartridge shown in Figure 13.

Figure 16 is the part amplification sectional view that Printing ink bag is encapsulated in the lower casing internal state by thin film component.

Figure 17 is the stereogram to the last shell bight that the inside direction is seen.

Figure 18 is the stereogram from the last shell bight that top direction is seen.

Figure 19 is the stereogram of the whole print cartridge seen from last shell one side.

Figure 20 is a side end and the sectional view that is arranged on the bindiny mechanism on the cartridge holder of expression print cartridge.

Figure 21 is the stereogram of the bindiny mechanism that is provided with on the cartridge holder of expression.

Figure 22 (A) and Figure 22 (B) are the sectional views that the printing ink of expression print cartridge one side is drawn the printing ink fairlead structure of bolt and cartridge holder one side.

Figure 23 is the amplification stereogram of the state of adorning that expression is contained in the circuit board of print cartridge one side.

Figure 24 (A) and Figure 24 (B) are the amplification stereograms of the surface structure of expression circuit board shown in Figure 23.

Figure 25 is the stereogram that the pressure of expression in Printing ink bag is placed on print cartridge given as security the parts surface structure.

Figure 26 (A), Figure 26 (B) and Figure 26 (C) are front view and the sectional views thereof that pressure shown in Figure 25 is given as security parts.

Figure 27 is that the Printing ink bag of a small amount of printing ink of expression encapsulation is given as security the print cartridge sectional view that parts are placed on the shell internal state with pressing.

Figure 28 is the exploded perspective view of the preferred embodiment of expression print cartridge of the present invention.

Figure 29 is the accompanying drawing of expression along the cross section structure of the E-E line of Figure 28.

Figure 30 is a sectional view of representing the another kind of preferred embodiment of print cartridge of the present invention with the clamp structure of the circumference of print cartridge.

Figure 31 is a sectional view of representing another preferred embodiment of print cartridge of the present invention with the clamp structure of the circumference of print cartridge.

Figure 32 represents the exploded perspective view of the another kind of preferred embodiment of print cartridge of the present invention.

Figure 33 is the accompanying drawing of expression along the cross section structure of the F-F line of Figure 32.

Figure 34 is a sectional view of representing another embodiment of print cartridge of the present invention with the clamp structure of the circumference of print cartridge.

Figure 35 is the sectional view that also has a kind of embodiment of representing print cartridge of the present invention with the clamp structure of the circumference of print cartridge.

Figure 36 is the sectional view of an example of the existing print cartridge of expression.

The specific embodiment

Below, with reference to embodiment shown in the drawings, describe to the print cartridge of various embodiments of the present invention and with the ink-jet printer of this print cartridge.At first, Fig. 1 has represented to use the example of ink-jet printer of the print cartridge of various embodiments of the present invention with vertical view.

In Fig. 1, symbol 1 expression carriage, this carriage 1 is scanned guide member 4 guiding by the toothed belt 3 that is driven by carriage motor 2, at the length direction of paper pushing part 5, i.e. the width of record-paper, just main scanning direction moves back and forth.

Though do not express among Fig. 1, carriage 1 relative with paper pushing part 5 to face on, adorning the ink jetting printing head 6 that the back will illustrate.Adorning on carriage 1 is that above-mentioned printhead is supplied with assistant print cartridges 7a～7d that printing ink is used.

This assistant print cartridges 7a～7d in the present embodiment, has 4, and corresponding with printing ink respectively, different printing ink can be stored in its inside temporarily.

Black, yellow, livid purple look and wine-colored each printing ink, respectively by flexual printing ink supply pipe 10,10 ... from being contained in the print cartridge of being adorned on the cartridge holder 8 on the apparatus main body, promptly main print cartridge 9a～9d is supplied to each assistant print cartridges 7a～7d.

On the other hand, non-print position (origin-location) on the mobile alignment of above-mentioned carriage 1, the cap assembly 11 that the nozzle that can seal printhead forms face is being set, at this above cap assembly 11, adorning the nozzle that can seal above-mentioned printhead and forming cap cover part 11a face, that pliability material such as rubber is made.

When carriage 1 moved to the origin-location, the nozzle of printhead forms face can be by above-mentioned cap cover part 11a sealing.

The function of this cap cover part 11a is that the nozzle of sealing printhead when printer is not worked forms face, works the lid effect that prevents the nozzle opening drying.Though do not express among the figure, this cap cover part 11a is connected with pipe one end of asepwirator pump (pipe pump), and the suction function that asepwirator pump produces from the printhead sucking-off, cleans printing ink in printhead.

Print position adjacent with cap assembly 11 is provided with the cleaning part 12 that the rubber elastomeric material is made, and can be where necessary the nozzle formation face of printhead be carried out wiping, cleaning.

Fig. 2 is the schematic diagram that expression is contained in the ink supply system on the printer shown in Figure 1, below, with reference to the Fig. 1 that represents each suitable parts respectively with prosign, this ink supply system is described simultaneously.

In Fig. 1 and Fig. 2, symbol 21 expressions constitute the air pressurization pump of pressue device, adjust valve 22 through these air pressurization pump 21 air pressurized supply pressures, supply with each main print cartridge 9a～9d (be that representative is represented with 9, also single sometimes below is that representative describes with 9) respectively by pressure detector 23 in Fig. 2 again.

The function of above-mentioned pressure-regulating valve 22 is, reaching certain limit through air pressurization pump 21 air pressurized pressure when above, pressure discharged, and the air pressure of each main print cartridge 9a～9d is maintained in certain scope.

The function of above-mentioned pressure detector 23 is to detecting through air pressurization pump 21 air pressurized pressure, the driving of air pressurization pump 21 to be controlled.

In other words, measuring when air pressurization pump 21 air pressurized pressure reach certain pressure, stop driving in view of the above to air pressurization pump 21, simultaneously measure air pressure when certain pressure is following at pressure detector 23, control, air pressurization pump 21 is driven, carry out so repeatedly, the air pressure of above-mentioned each main print cartridge 9a～9d is maintained in certain scope.

The detailed structure of above-mentioned main print cartridge 9 will be explained below, its general structure as shown in Figure 2, its gabarit forms airtight conditions, its inside is being adorned and encapsulate Printing ink bag 24 printing ink, the formation of pliability material.

Main print cartridge 9 has constituted balancing gate pit 25 with the space that Printing ink bag 24 forms, and forced air is supplied in this balancing gate pit 25 by above-mentioned pressure detector 23.

By such structure, be placed on each the Printing ink bag 24 pressurized air pressurization respectively in each main print cartridge 9a～9d, produced printing ink stream from each main print cartridge 9a～9d to the certain pressure of each assistant print cartridges 7a～7d.

Pressurized ink in above-mentioned each main print cartridge 9a～9d is respectively by each printing ink replenish valve 26,26 ... with each printing ink supply pipe 10,10 ... be supplied to each assistant print cartridges 7a～7d of being contained on the carriage 1 (in Fig. 2 be that representative represent with 7, also single sometimes below is that representative describes with 7).

As shown in Figure 2, be provided with float part 31, on the part of this float part 31, adorning permanent magnet 32 in assistant print cartridges 7 inside.The electromagnetic conversion element 33a, the 33b that with the Hall element are representative are contained on the base portion 34, are connected on the sidewall of assistant print cartridges 7.

Such structure has constituted above-mentioned electromagnetic conversion element 33a, 33b and has produced the quantity of ink checkout gear of electric power output according to the magnetic flux that is arranged on the position that permanent magnet 32 on the float part 31 and float part float.

Like this, under the few situation of the quantity of ink in assistant print cartridges 7 for example, move to gravity direction the position that is contained in the float part 31 in the assistant print cartridges, and also move to gravity direction thereupon the position of permanent magnet 32.

Therefore, the electric power of mobile Hall element 33a, the 33b that causes of permanent magnet output can as the quantity of ink in the assistant print cartridges 7 by sensing, measure, above-mentioned printing ink replenish valve 26 is opened according to the electric power output of Hall element 33a, 33b.Like this, the pressurized ink in the main print cartridge 9 can be delivered to respectively in the assistant print cartridges 7 that quantity of ink reduces.

When the quantity of ink in this assistant print cartridges 7 reached certain amount, above-mentioned printing ink replenish valve 26 was closed according to the electric power output of Hall element 33a, 33b.

By repeatedly such, printing ink intermittently from main print cartridge supply to assistant print cartridges, often storing roughly a certain amount of printing ink in each assistant print cartridges.

Printing ink is supplied with printheads 6 from each assistant print cartridges 7 by valve 35 and connected pipe 36, according to the print data of the actuator of not expressing among the figure that supplies with printhead 6, and the nozzle opening 6a ejection that ink droplet forms from the nozzle formation face of printhead 6.

The asepwirator pump of not expressing in the above-mentioned cap assembly of symbol 11 expression among Fig. 2, the pipe that is connected with this cap assembly 11 and figure (pipe pump) is connected.

Below, since the print cartridge of the 1st embodiment, successively print cartridge of the present invention is described.

Fig. 3 to Fig. 5 (A) and Fig. 5 (B) are the examples of the print cartridge (main print cartridge) of used the 1st embodiment of the present invention of the above-mentioned ink-jet printer of expression.

At first, Fig. 3 represents is total as the lower casing of the 1st gabarit component parts that constitutes main print cartridge gabarit.This lower casing 41 is flat box-like, and top is open, and the Printing ink bag 24 that has encapsulated printing ink is being adorned in inside.

At the periphery of this lower casing, be formed with roughly the continuous of one side by deposited 42 along whole periphery.In addition, at the periphery of lower casing, along continuous periphery by deposited 42, also integrally formed forward position portion 43.

Fig. 5 (A) and Fig. 5 (B) expression be the bight shown in the B among the Fig. 3 that has amplified.

Such as will be described, shell and lower casing shown in Figure 3 vibrate when deposited on as the 2nd gabarit component parts, the director dipole that forms on the last shell (deposited son) may fracture because of friction, and this forward position portion 43 forms in order to prevent it from dispersing.

At the bottom surface of lower casing 41, promptly form on the face of balancing gate pit 25, be formed with and prevent the be bullied well shape reinforcement 44 of compressive strain of lower casing.

This reinforcement 44 is integrally formed therewith when for example forming lower casing with blow moiding method, such as will be described, be bonded into airtight conditions with last shell, under the inner situation that forms the balancing gate pit, the reinforcement 44 of this well shape can be brought into play inhibition and be subjected to the air pressure effect with the bending face vertical direction that produce because of inside.

In other words, owing to formed the reinforcement 44 of well shape as mentioned above, can be strengthened, therefore, so also be helped reducing the consumption of the used synthetic resin of formation lower casing with the intersect vertically intensity of direction of face.

In this case, though being formed at the outside of shell, above-mentioned reinforcement 44 also can obtain same stiffening effect, but as form well shape reinforcement 44 shown in Figure 3 in the outside of shell, then labels such as the trade name of print cartridge or identification marking have pasted with regard to difficulty, so reinforcement 44 preferably is formed at the bottom surface of lower casing as shown in Figure 3.

As shown in Figure 3, in the end of lower casing 41 length directions, be formed with a pair of guide hole 45, when shell constituted the gabarit of print cartridge on will illustrating with the back, the set a pair of guide pins of this guide hole 45 and the cartridge holder of printer was chimeric, plays the role of positioning.

What Fig. 4 represented is the total that constitutes the last shell of main print cartridge gabarit.Should go up shell 51 and be pancake, its central portion forms the shape of sylphon, and its effect is the lid as above-mentioned lower casing 41.

Periphery of shell on this, what form that periphery with above-mentioned lower casing 41 forms is continuous in deposited the 42 deposited a series of director dipoles (deposited son) 52 of the friction of joining.Fig. 5 (A) and Fig. 5 (B) expression be the bight shown in the A of Fig. 4 of having amplified.

Below the zenith of last shell 51, promptly form on the face of balancing gate pit 25, the same with lower casing, be formed with the well shape reinforcement 53 that prevents to be subjected to air pressure and be out of shape.

This reinforcement 53 is integrally formed therewith when for example forming shell 51 with blow moiding method, be bonded into airtight conditions with lower casing, under the inner situation that forms the balancing gate pit, the reinforcement 53 of this well shape can be brought into play inhibition and be subjected to the air pressure effect with the bending face vertical direction that produce because of inside.

Like this, why reinforcement 53 is formed at below the zenith of shell 51, is because with foregoing the same, does not consider that labels such as giving print cartridge surface stickup trade name or identification marking cause difficulty.

Fig. 6 is that expression is by the deposited sectional view that above-mentioned lower casing 41 is engaged with last shell 51 of vibration.Fig. 7 is the sectional view of seeing from the A-A alignment direction of arrow of Fig. 6.In Fig. 6 and Fig. 7, the part identical with the each several part that had illustrated represented with prosign.

Vibrating when deposited, as Fig. 6 and shown in Figure 7, the Printing ink bag 24 that will encapsulate printing ink from above in advance is placed in the lower casing 41.The printing ink lead division 55 of sealing Printing ink bag 24, formation printing ink outlet is led to outside the lower casing by the peristome 46 that forms by lower casing 41 side ends.

In this state, put annulus 56, be pressed into the locked part 57 of ring-type from the outside of lower casing 41, the printing ink lead division 55 of Printing ink bag 24 is contained on the above-mentioned peristome 46 of lower casing 41 at above-mentioned peristome 46.

Like this, because the printing ink lead division 55 of Printing ink bag 24 is 57 pairs of locked parts in ring-type to be contained under the state that the annulus of peristome 46 compresses and to load onto, and therefore becomes airtight conditions between the printing ink lead division 55 of peristome 46 that forms on the above-mentioned lower casing 41 and Printing ink bag.

Like this, after Printing ink bag 24 is put into lower casing 41, will go up shell 51 and be combined on the lower casing 41, vibrate deposited.Symbol 47 expression among Fig. 7 be to supply with the air intake that air pressure that above-mentioned air pressurization pump produces is used.

Fig. 8 (A) and Fig. 8 (B) are the part enlarged diagrams that shell 51 state when deposited with lower casing 41 vibrations is gone up in expression.Shown in Fig. 8 (A) and Fig. 8 (B), the circumference of lower casing 41 to upper support from following by the fixing deposited anchor clamps 61 of vibration.The circumference of last shell 51 is being pressed from top to bottom by the deposited anchor clamps 62 of the vibration of activity.

The driving of the actuator that the movable deposited anchor clamps 62 of vibration are subjected to not expressing among the figure shown in Fig. 8 (A), at the gravity direction load application, is vibrated simultaneously in the horizontal direction.

Because such action, the director dipole 52 1 that forms on the last shell 51 in the face of lower casing 41 by deposited 42 load application, the one side slip.

Like this, by the frictional heat that produces between the two, the director dipole 52 that forms on the last shell 51 is melted respectively with the part by deposited 42 of lower casing 41.

Under the state of load application, allow the vibration of movable deposited anchor clamps 62 horizontal directions of vibration stop, lower casing 41 promptly is bonded into airtight conditions with last shell 51 shown in Fig. 8 (B).

As mentioned above, along lower casing 41 by deposited 42 periphery, also be formed with forward position portion 43, owing to exist this forward position portion 43, carrying out above-mentioned vibration when deposited, shaken disconnectedly, also can reduce the pliability that it disperses even go up the director dipole 52 that forms on the shell.

Print cartridge gabarit with such structure can be bonded into airtight conditions by the fusion of resin between the two, can be used for the above-mentioned ink-jet printer that will be pressed into air pressure in the main print cartridge as print cartridge.

Top explanation is to make as the last shell of the 2nd gabarit component parts and the embodiment that becomes mutual airtight conditions as the lower casing of the 1st gabarit component parts by the vibration cladding method, but make both become the method for mutual airtight conditions, also can adopt hot melt coating method described below.

Fig. 9 (A) and Fig. 9 (B) are that expression will be deposited over as the schematic diagram on the lower casing 41 of the 1st gabarit component parts as the deposited film 64 of the hot melt of the 2nd gabarit component parts.

In this case, lower casing adopts the same shell of structure that had illustrated among its structure and Fig. 3.

With film-like members lower casing is being carried out hot melt when applying, the same when deposited with Fig. 6 and vibration shown in Figure 7, the Printing ink bag 24 that will encapsulate printing ink from above in advance is placed in the lower casing 41.

Next, the printing ink lead division 55 that is contained on the Printing ink bag 24 is led to outside the lower casing by the peristome 46 that forms by lower casing 41 side ends, simultaneously with the locked part annulus 57 of ring-type with annulus 56 sealings, the printing ink lead division 55 of Printing ink bag 24 is contained on the above-mentioned peristome 46 of lower casing 41.

On the other hand, at the periphery of lower casing 41, a part wherein is formed with roughly the continuous in deposited 42 of one side along whole periphery shown in Fig. 9 (A).Hot melt applies continuous being applied by deposited 42 hot melt of film 64 and the formation of above-mentioned lower casing periphery.

In this case, shown in Fig. 9 (A), the circumference of lower casing 41 is supporting with fixing anchor clamps 66.

With hot melt apply that film 64 covers the lower casing periphery continuous on deposited 42, in this state, continuous the falling above deposited 42 that electric hot plate 67 forms from lower casing 41 peripheries applied film 64 with hot melt and is pressed in by on deposited 42.

Like this, hot melt applies film 64 and just is deposited on the circumference of lower casing 41, and the circumference that hot melt applies film 64 and lower casing 41 is bonded into airtight conditions.

By hot melt is applied the top opening that film 64 is bonded on lower casing 41, just can in lower casing 41, form the balancing gate pit 25 of airtight conditions.

But, because it is soft that above-mentioned hot melt applies the character of film 64, when being contained on the above-mentioned printer in this state, the deposited film 64 of hot melt is subjected to the gas pressure of air pressurization pump and expands, air pressure instability in the balancing gate pit 25 that the deposited film 64 of lower casing 41 and hot melt constitutes exists such technical problem.

What Fig. 9 (B) represented is the structure that solves such technical problem.Specifically, shown in Fig. 9 (B), hot melt applies film 64 and has the strengthening part 71 that covers from top, and at the periphery of this strengthening part 71, is formed with the buckling parts 71a of the periphery that can load onto, unload lower casing 41.

According to such structure, when applying air pressure, hot melt applying film 64 and expand in lower casing 41 and hot melt being applied the balancing gate pit 25 that film 64 constitutes, the face that hot melt applies film 64 and strengthening part 71 joins, and can not expand.

Print cartridge with this structure also can form the balancing gate pit between lower casing and the deposited film of hot melt, can be used for the above-mentioned ink-jet printer that will be pressed into air pressure in the main print cartridge as print cartridge.

Figure 10 is the schematic diagram that expression constitutes the another kind of embodiment of print cartridge.

In the embodiment shown in fig. 10, constitute form on the closed surface that forms on the lid of the 2nd shell component parts and the lower casing that constitutes the 1st shell component parts continuous by the closed surface driving fit together, make to keep airtight conditions between the two.

That is to say, shown in the end cross-sectional state among Figure 10, be formed with the circular arc of projection by closed surface 73 at its whole periphery of lower casing 41 upper edges that constitutes the 1st shell component parts.

In addition, at the periphery of the lid 75 that constitutes the 2nd shell component parts, be formed with lower casing 41 on formation continuous by closed surface 73 driving fits, spill circular arc closed surface 76.

On lid 75, be formed with the buckling parts 77 that to load onto, unload the lower casing periphery,, become mutual airtight conditions between lower casing 41 and the lid 75 by the effect of above-mentioned buckling parts 77.

Print cartridge with this structure also can form the balancing gate pit between lower casing and the deposited film of hot melt, can be used for the above-mentioned ink-jet printer that will be pressed into air pressure in the main print cartridge as print cartridge.

Structure shown in Figure 10, also the same with the various embodiments described above, be in the lower casing 41 at the 1st shell component parts, put into the prior Printing ink bag that encapsulates printing ink, be the top that lid 75 is loaded onto lower casing 41 with the 2nd shell component parts more in this state.

As mentioned above, print cartridge according to the 1st embodiment of the present invention, because Printing ink bag is equipped with in inside, its gabarit parts are bonded with each other into airtight conditions by the 1st shell component parts with the 2nd shell component parts at least and constitute, therefore under the situation of having placed the Printing ink bag that is packaged with printing ink in advance, just can form by the 1st and engage the commodity print cartridge that forms with the 2nd shell component parts.

Because this print cartridge is bonded with each other into airtight conditions by the 1st shell component parts with the 2nd shell component parts and constitutes, the dismounting of the print cartridge of therefore having used up and re-use very conveniently helps saving resource.

Print cartridge to the 2nd embodiment of the present invention describes below.The feature of the print cartridge of the 2nd embodiment is when printer takes off, and the forced air intake that forms on the print cartridge is open, and the balancing gate pit that forms between the gabarit parts of print cartridge and the Printing ink bag directly is connected with atmosphere.

As mentioned above, leading section at the lower casing 41 that printing ink lead division 55 is housed, be formed with peristome 58, when print cartridge being loaded onto on the cartridge holder 8, as Figure 11 and shown in Figure 12, be arranged on printing ink reception cartridge holder 8 one sides, that the back will illustrate and relatively insert this peristome 58 with connecting portion, the printing ink lead division 55 of print cartridge one side can receive with the printing ink of cartridge holder 8 one sides and be connected with connecting portion.

On the above-mentioned printing ink lead division 55 of print cartridge, the connecting portion that is provided with the cartridge holder that will illustrate with the back joins, axially retreats, is the valve part 59 of opening, and this valve part 59 is promoted by spring members 60, can axially advance and retreat.

Promoted by spring members 60, the valve part 59 that can axially advance and retreat, the annular seal parts 61 that are formed with through hole 61a by central portion block, its result as shown in figure 11, printing ink lead division 55 is closed condition.

Constitute the forced air intake 47 that forms on the above-mentioned lower casing 41 of print cartridge gabarit and be made of the cylinder that forms the air duct that is communicated with balancing gate pit 25, this cylinder highlights from the leading section of print cartridge, and is integrally formed.

Leading section at the lower casing 41 that forms forced air intake 47, be formed with peristome 94, load onto at print cartridge under the situation of cartridge holder 8, as shown in figure 12, the forced air supply unit that forms on the cartridge holder 8, the back will illustrate relatively enters this peristome 94, the seal member that is provided with on the forced air supply unit be close to forced air intake 47 around.

On the other hand, being formed with the printing ink that portion in the central highlights in cartridge holder 8 one sides receives with connecting portion 71.

On this connecting portion 71, be provided with and loading onto under the state of print cartridge, join with the above-mentioned printing ink lead division 55 of print cartridge one side, axially retreat, be the switch valve 72 of opening.This switch valve 72 is not being loaded onto under the state of print cartridge, and axial advancement keeps closed condition.

Specifically, on above-mentioned switch valve 72, have and form the hollow needle 73 that printing ink is introduced hole 73a, and be mounted slidably outside in this hollow needle 73, do not loading onto under the state of print cartridge, be subjected to the elastic force of elastomeric element 74 and move to the slide unit 75 that inaccessible above-mentioned hollow needle 73 formed printing ink are introduced the ring-type of hole 73a.

Like this, under the state of not loading onto print cartridge shown in Figure 11, the slide unit 75 of ring-type is subjected to the elastic force of spring members 74 and advances, and the printing ink that forms on the hollow needle 73 is introduced hole 73a obturation, becomes closed condition.

Under the state of loading onto print cartridge shown in Figure 12, the above-mentioned printing ink lead division of print cartridge one side 55 joins with the slide unit 75 of ring-type, and it is retreated, and allows the printing ink that forms on the hollow needle 73 introduce hole 73a and exposes the opening that one-tenth can be introduced printing ink.

At this moment, in print cartridge one side, the leading section of the above-mentioned hollow needle 73 of cartridge holder one side joins by through hole 61a and the valve part 59 that forms on the seal member 61, and valve part 59 is axially retreated, and the printing ink lead division 55 of print cartridge one side is unlocked.

Like this, shown in the arrow of Figure 12, just printing ink can be supplied to cartridge holder one side from print cartridge.

Meanwhile, the forced air intake 47 that constitutes the forced air intake of print cartridge also inserts in the annular seal parts 78 of the forced air supply unit 77 that is arranged on cartridge holder one side.

Like this, seal member 78 closely is attached on the outer peripheral face of forced air intake 47, and forced air can be introduced the balancing gate pit 25 of print cartridge one side shown in the arrow of Figure 12.

According to said structure, with print cartridge when cartridge holder takes off, the forced air intake 47 that is communicated with the balancing gate pit 25 of print cartridge one side as shown in figure 11, the seal member 78 of the forced air supply unit by being contained in cartridge holder one side is removed sealing.

Like this, the balancing gate pit 25 of print cartridge is opened in the atmosphere by the air duct of forced air intake 47 immediately.Therefore, the applied pressure to Printing ink bag 24 is discharged immediately.

Because set above-mentioned printing ink lead division 55 also is closed on the print cartridge, can prevent that therefore printing ink is subjected to the influence of gravity and spills.

Simultaneously, also be closed with connecting portion 71, therefore can stop printing ink from the assistant print cartridges adverse current because the printing ink of print cartridge one side receives.

From above-mentioned explanation as can be seen, adopt the print cartridge of the 2nd embodiment of the present invention, with print cartridge when printer takes off, the forced air intake of print cartridge is by opening, the balancing gate pit that forms between the gabarit parts of print cartridge and the Printing ink bag directly is opened in the atmosphere.Therefore, the applied pressure of Printing ink bag is removed immediately, so can stop the printing ink in the Printing ink bag being discharged from unintentionally or spilling.

Also be like this in loading onto the printer of stating print cartridge,, therefore can solve printing ink, the problem that pollutes because of printing ink from the assistant print cartridges adverse current owing to be provided with at cartridge holder the switch valve of not loading onto axial advancement under the state of print cartridge, keeping closed condition.

Below, the print cartridge of the 3rd embodiment of the present invention is described.What Figure 13 to Figure 15 represented is the example of the print cartridge (main print cartridge) 100 of the 3rd embodiment of the present invention.Figure 13 is the stereogram of the total of the main print cartridge of expression.Figure 14 is the main print cartridge amplification sectional view of seeing from the B-B alignment direction of arrow of Figure 13.Figure 15 is the stereogram that is placed on the structure of the Printing ink bag 124 in the shell shown in Figure 13.

At first, as Figure 13 and shown in Figure 14, shell is by constituting as the last shell 141 of the 2nd shell and lower casing 142 as the 1st shell.

This lower casing 142 is flat box-like, and open above, the Printing ink bag 124 (with reference to Figure 15) that has encapsulated printing ink can be put in its inside.

In this embodiment, as shown in figure 14, in order to push down four limits of the Printing ink bag 124 that is positioned in the lower casing 142, inserted with formations such as for example foam styrene, central portion has the quadrangle middle cover 143 of window, such as will be described in addition, thin film component 144 is shown in thick black line, heat is deposited on the flange part 142a that the open end edge of lower casing 142 forms, and lower casing 142 is sealed into airtight conditions.

The last shell 141 of flat box-shaped is on upper cover.

The effect of above-mentioned last shell 141 is as suppressing the lid that above-mentioned thin film component 144 is bloated by forced air laterally, being made of the planar portions 141b of performance lid function and the kink 141c that intersects vertically, is integrally formed therewith with planar portions.

The hook parts 141a that is formed with wedge separated by a certain interval along the inside of above-mentioned kink 141c, to go up shell 141 covers after on the lower casing 142, the above-mentioned flange part 142a that the open end edge of above-mentioned each hook parts 141a and lower casing 142 forms fastens, and both are combined into one.

According to such structure, when in the lower casing 142 that is sealed by thin film component 144, introducing forced air,, therefore can avoid thin film component 144 bloated laterally by forced air because the inside of going up shell 141 is being pasted in the position of thin film component 144.

What Figure 15 represented is the structure that is placed on the Printing ink bag 124 in the shell that forms with said method.

These Printing ink bag 124 usefulness the pliability material of two pieces of rectangles, as polyethylene film, in order to improve its gas barrier property, in its surface pressure one deck aluminium foil for example.Adorning the printing ink lead division 150 that constitutes the printing ink outlet at the substantial middle position of length direction end.

At first to be the side end that will above-mentioned printing ink lead division 150 be housed with three limits of the both side ends of perpendicular crossing length direction apply with hot melt Printing ink bag 124 engages pouch.Symbol 124b represents is that hot melt on above-mentioned three limits applies part.

Formed one side remaining in the Printing ink bag 124 of above-mentioned bag shape as opening, printing ink is introduced Printing ink bag 124, one side hot melt that will be left at last applies and is joined together, and is printing ink and is encapsulated in the interior state of Printing ink bag.Symbol 124c represents is that hot melt on above-mentioned remaining one side applies part.

Figure 16 is the part amplification sectional view that expression is encapsulated in Printing ink bag 124 by thin film component lower casing 142 internal states.At first, the flange part 142a that utilizes the lower casing open end edge to form is placed on lower casing 142 on the stationary fixture 161.

Above-mentioned Printing ink bag 124 is placed in the lower casing 142, will pushes down the quadrangle middle cover 143 that four limits of Printing ink bag 124 are used, that central portion has window again and insert in the lower casings 142.

In this state, thin film component 144 is covered on the above-mentioned flange part 142a that the edge of opening of lower casing 142 forms.

Then, will fall, the thin film component 144 on the flange part 142a that covers will be heated with the heating head 162 of the same shape of flat shape of the above-mentioned flange part 142a of lower casing 142.Like this, thin film component 144 is applied by the above-mentioned flange part 142a hot melt along lower casing 142, and lower casing 142 is sealed into airtight conditions by thin film component 144.

Figure 17 and Figure 18 are a part of structures of the last shell 141 that engages with the above-mentioned lower casing 142 that is sealed by thin film component 144 of expression, particularly along the enlarged drawing of the hook parts 141a of the above-mentioned kink 141c the inside interval formation of last shell 141 and peripheral structure thereof.

Figure 17 is the stereogram to last shell 141 bights that the inside direction is seen.Figure 18 is the stereogram from last shell 141 bights that top direction is seen.

As shown in figure 17, on hook parts 141a, be formed with thickness from the bottom of kink 141c the taper surface 141d to the planar portions 141b of lid effect thickening, the end by planar portions 141b one side of this taper surface 141d is formed with and fastens end difference 141e.

On the above-mentioned planar portions 141b of last shell with each hook parts 141a corresponding position, position is set, be formed with the long narrow hole 141f of the kink 141c shown in also have among Figure 18 respectively.

Like this, when last shell 141 covered on lower casing 142, the side of the flange part 142a that the taper surface 141d of above-mentioned each hook parts 141a and the edge of opening of lower casing 142 form joined and slides.

Press to lower casing 142 by going up shell 141, each hook parts 141a crosses the above-mentioned flange part 142a that forms on the lower casing 142.Like this, the flange part 142a on the lower casing 142 embeds the fastening end difference 141e on the hook parts 141a, and two shells are engagement state.

In this case, since with each hook parts 141a be provided with the position corresponding on the above-mentioned planar portions 141b of shell 141, be formed with long narrow hole 141f respectively, therefore, can improve the pliability of the above-mentioned kink 141c that is provided with each hook parts along kink 141c.

Retreatment effect when like this, the pliability of this kink taper surface 141d that can play above-mentioned hook parts 141a effectively crosses the flange part 142a of lower casing 142.

Like this, can avoid effectively when two shells that synthetic resin is formed engage, being subjected to irrational stress effect, the formation of hook parts 141a is partly whitened or produce the crack.

Figure 19 sees the stereogram as the whole main print cartridge 100 of print cartridge that forms with said method from last shell one side.

In this embodiment, have 5 positions to form long narrow hole 141f along the length direction both ends of shell, similarly, the setting of hook parts 141a is also corresponding with long narrow hole 141f, and roughly same interval is separated by.Short side direction both ends along shell have 2 positions to form long narrow hole 141f, and similarly, the setting of hook parts 141a is also corresponding with long narrow hole 141f respectively.

According to have said structure, as the main print cartridge 100 of print cartridge, as shown in figure 13, the open pore 151 that used positioner is used when the one side of print cartridge shell is formed with a pair of conduct and loads onto printer.

This is arranged on above-mentioned one side two positions along its length of shell to open pore 151, and is separated by a certain interval, and they can be integrally formed therewith when for example forming lower casing 142 with blow moiding method.

The above-mentioned printing ink lead division 150 that constitutes the printing ink outlet of Printing ink bag is contained in the roughly middle part in the locating aperture hole 151 that is arranged at above-mentioned two positions.Two outsides in the locating aperture hole 151 that is arranged at above-mentioned two positions are being provided with forced air intake 152 respectively, and the back circuit board 153 that will describe in detail.

Forced air intake 152 is a hollow form, and is integrally formed in lower casing 142 moulding, and forced air can be introduced in the lower casing 142 that is sealed by thin film component 144 by this intake.

Figure 20 represents is the cross section state as a side end of the whole main print cartridge 100 of print cartridge that forms with said method, represents the assembly unit state of the bindiny mechanism 155 that main print cartridge 100 and the cartridge holder 8 that is arranged at printer are set.

Figure 21 is the stereogram of the bindiny mechanism 155 of setting on the expression cartridge holder 8.

Shown in Figure 20 and 21, in cartridge holder 8 one sides, pair of cylindrical alignment pin 156 is being set, a pair of above-mentioned locating aperture hole 151 that forms on the main print cartridge 100 surrounds each alignment pin 156 when assembly unit.

Like this, because the location of print cartridge is arranged on two positions of length direction of the above-mentioned one side of shell with open pore 151, therefore,, can make main print cartridge 100 three-dimensional localization as print cartridge by being contained in the base end part of two alignment pins 156 that are provided with on the printer.

By main print cartridge 100 is contained on the above-mentioned alignment pin 156, the hollow printing ink fairlead 157 that is clipped in the substantial middle position of a pair of alignment pin 156 inserts the above-mentioned printing ink lead division 150 that is contained on the Printing ink bag, becomes the state that printing ink can be drawn from print cartridge.

After loading onto main print cartridge 100, the set forced air of forced air intake 152 and retainer 8 one sides is sent mouthfuls 158 and is connected, and becomes the state that forced air can be introduced main print cartridge 100.

Terminal mechanism 159 with a plurality of contact chips is connected with the circuit board 153 that is arranged at main print cartridge 100 1 sides, become can and circuit board 153 semiconductor memories set, that the back will illustrate between realize the state that data transmit.

When main print cartridge 100 was loaded onto cartridge holder 8, as shown in figure 20, the foregoing circuit plate 153 that is arranged at main print cartridge 100 was vertically loaded onto from upper position at gravity direction.

Figure 22 (A) and Figure 22 (B) be expression by loading onto main print cartridge 100, the set hollow printing ink fairlead 157 of retainer one side inserts the above-mentioned printing ink lead division of being adorned on the Printing ink bags 150, becomes the sectional view of the state that printing ink can draw from print cartridge.

Figure 22 (A) expression be that both connect former state, Figure 22 (B) expression be state after both connect.

In the exit portion of the above-mentioned printing ink lead division 150 of Printing ink bag, embed the rubber gasket 150a of annular.On the other hand, can be placed in the printing ink lead division 150 by axially movable movable body 150b.

Above-mentioned movable body 150b can be promoted the annular central portion sealing with above-mentioned rubber gasket 150a by the elastic force of spring members 150c.Be formed with near the opening 157a of the side leading section on the set hollow form printing ink fairlead 157 of retainer 8 one sides.

Like this, under the main print cartridge 100 as print cartridge shown in Figure 22 (A) is not contained in state on the printer, the elastic force of the spring members 150c of plate-like makes the annular central portion sealing of movable body 150b with rubber gasket 150a, therefore printing ink lead division 150 is in closed condition, can prevent that printing ink from spilling from Printing ink bag.

Under the main print cartridge 100 shown in Figure 22 (B) is contained in state on the printer, because the leading section of printing ink fairlead 157 has overcome the elastic force of above-mentioned spring members 150c, 150b is pressed to inside with movable body, has therefore formed the oil ink passage shown in the arrow, and printing ink can be drawn.

In this case, the inside diameter of the annular of rubber gasket 150a is close to the profile portion of printing ink fairlead 157, can stop printing ink to spill from this part.

The state of adorning of the foregoing circuit plate 153 that is arranged on print cartridge one side that Figure 23 represents, what Figure 24 (A) and Figure 24 (B) represented is the surface structure of circuit board 153.Figure 24 (A) is the stereogram of the circuit board 153 seen from the front of expression, and Figure 24 (B) is the stereogram of the circuit board 153 seen from the inside.

As shown in figure 23, circuit board 153 is contained in the bight of the lower casing 142 of print cartridge, is contained in the open inner bottom part in two sides that intersects vertically.Its open one side makes circuit board 153 to be connected with the terminal mechanism 159 that is arranged at above-mentioned cartridge holder 8 one sides, and open another side is mainly used in circuit board 153 is contained on the print cartridge.

Specifically, shown in Figure 24 (A) and Figure 24 (B), be contained in through hole 153a and the breach 153b that uses on the lower casing 142 being formed with on the circuit board 153.On lower casing 142, shown in the dotted line of Figure 24 (A), be formed with the hot melt application projection 142c and the 142d that insert above-mentioned through hole 153a and breach 153b.

When roughly rectangular foregoing circuit plate 153 was loaded onto lower casing 142, as shown in figure 23, circuit board 153 was embedded among the depressed part 142b of circuit board location usefulness.

The electric hot plate of not expressing among the top of hot melt application projection 142c shown in the dotted line of Figure 24 (A) and 142d and the figure is joined, it is applied by hot melt, just circuit board 153 can be contained on the lower casing 142 as illustrated in fig. 23.

Like this, for circuit board 153 is loaded onto lower casing 142, can be with above-mentioned electric hot plate as anchor clamps, the one side of the opening of front end above circuit board 153 of above-mentioned electric hot plate is inserted.

Shown in Figure 24 (A), in the front of circuit board 153, be formed with when loading onto cartridge holder can with the electrode contact 153c of the splicing ear of above-mentioned terminal mechanism 159 turn-on current of retainer 8.

On with one side, also be formed with circular inspection electrode contact 153d.

The set semiconductor memory that can read and write data 154 in these electrode contacts 153c, 153d and the inside of circuit board 153 is connected, be contained at main print cartridge 100 under the state of cartridge holder of printer, transmit about data such as for example ink type that encapsulates in the main print cartridge, printing ink surplus, series number, the terms of validity.

Print cartridge according to the 3rd embodiment of the present invention, the 1st shell and the 2nd shell form airtight conditions, Printing ink bag is being put in inside, the 1st shell and the 2nd shell are that the flange part that forms on the edge of opening by the hook parts that form on the 2nd shell and the 1st shell is interlocked and engages, therefore the assembling of print cartridge is easy to taking apart, helps improving re-using of each parts.

Owing to corresponding position, position is set at the above-mentioned planar portions of the 2nd shell and hook parts, be formed with long narrow hole along kink, therefore can improve the pliability of the above-mentioned kink of configuration hook parts, simultaneously can avoid effectively when two shells are engaged, being subjected to irrational stress effect, the formation of hook parts is partly whitened or produce the crack.

Below, the print cartridge of the 4th embodiment of the present invention is described.The feature of the print cartridge of the 4th embodiment is, has to be placed on Printing ink bag in the print cartridge with Printing ink bag and to press and give as security parts, and the quantity of ink that is encapsulated in the Printing ink bag can be adjusted by the volume of these pressures signature parts.

As preferred embodiment, the gabarit structure of print cartridge, the structure of print cartridge etc. can adopt various structures that illustrated, shown in Figure 13 to Figure 24 (A) and Figure 24 (B).

What Figure 25 and Figure 26 (A), Figure 26 (B) and Figure 26 (C) represented is the structure that above-mentioned pressure is given as security parts 143, and Figure 25 is the stereogram that the whole pressure of expression is given as security parts.Figure 26 (A) presses the front view of giving as security parts, and Figure 26 (B) is the sectional view of seeing from the C-C alignment direction of arrow of Figure 26 (A), and Figure 26 (C) is the sectional view of seeing from the D-D alignment direction of arrow of Figure 26 (A).

Shown in Figure 25 and Figure 26 (A), Figure 26 (B) and Figure 26 (C), pressing and giving as security parts 143 is shaped as frame, and central portion forms the opening 143a of window shape, can push down four limits of above-mentioned Printing ink bag 124 rectangle, that four bandings close.

From the sectional view of Figure 26 (B) and Figure 26 (C) as can be seen, press give as security parts 143 relative with four limits of Printing ink bag to face be inclined plane 143b to the window 143a attenuation of central portion formation.

Above-mentioned inclined plane 143b shown in Figure 14 is some curved surfaces, like this, can reasonably be abutted against along the peripheral shape that has encapsulated the Printing ink bag 124 that printing ink, central portion bloat.

Printing ink bag 124 at a large amount of printing ink of encapsulation is contained under situation lower casing 142 in, can adopt the less pressure signature parts 143 of volume as shown in figure 14.

Printing ink bag 124 at a small amount of printing ink of encapsulation is contained under situation lower casing 142 in, can adopt the bigger pressure signature parts 143 of volume as shown in figure 27.

This main print cartridge shown in Figure 27 100 used pressures are given as security the aperture area of the window 143a that the central authorities of parts 143 form, and are littler than shown in Figure 14.Similarly, it also forms the inclined plane 143b to window 143a attenuation.

According to such structure, encapsulated the Printing ink bag 124 of a small amount of printing ink, near four limits of central authorities, pressed signature parts 143 signature of pressing.

According to such structure, although the printing ink that is encapsulated in the Printing ink bag is less, Printing ink bag moving freely also in print cartridge can be stoped effectively, can avoid being collided when print cartridge transports and causes the impaired problem of Printing ink bag.

From top explanation as can be seen, print cartridge according to the 4th embodiment of the present invention, press the signature parts owing to have the Printing ink bag that is placed in the print cartridge with Printing ink bag, the quantity of ink that is encapsulated in the Printing ink bag can be adjusted by the volume of these pressure signature parts, therefore give as security parts as being ready to the different pressure of multiple volume, select to press the signature parts according to the quantity of ink that is encapsulated in the Printing ink bag, be contained in the print cartridge shell, just can make Printing ink bag in shell, not have bigger gap.

Like this, can reduce transportation significantly the time is collided and causes the impaired possibility of Printing ink bag.

On the other hand, be used in the present invention under the situation of the print cartridge of introducing forced air in print cartridge, because what adorn in the print cartridge is that its volume is to give as security parts according to the pressure that the quantity of ink that is encapsulated in the Printing ink bag is selected, and therefore introduces the amount of the forced air in the print cartridge and can determine within the specific limits.

Like this,, also there is no need in print cartridge to introduce a large amount of forced airs, can avoid the long-time holding state after printer is for example connected working power, help improving treating capacity even used a spot of print cartridge.

At last, to the print cartridge that is applicable to the various embodiments described above of the present invention, can avoid because of the vibration of print cartridge well or drop causing Printing ink bag to break, constitute the shell of gabarit and print cartridge preferred embodiment that Printing ink bag all can re-use easily describes.

The feature of this preferred embodiment is, in its inside that constitutes the hard coat of print cartridge gabarit, is formed with the recess that is equivalent to load onto printing ink, is the Printing ink bag cross sectional shape of pillow shape, and muscle that can clamping Printing ink bag circumference.

What be preferably in hard coat laterally, vertically all forms some above-mentioned muscle, forms protuberance and recess at the position of clamping Printing ink bag circumference, forms through hole at the circumference of above-mentioned Printing ink bag, and forms on above-mentioned muscle and be absorbed in protuberance of through hole or the like.

As another kind of preferred embodiment, can allow the inside of above-mentioned hard coat form shape consistent with the Printing ink bag cross sectional shape of having loaded onto printing ink and the above-mentioned Printing ink bag circumference of energy clamping.And, can form protuberance and recess at the position of clamping Printing ink bag circumference, form through hole at above-mentioned circumference, and formation is absorbed in protuberance of this through hole or the like on shell.

Below, with reference to accompanying drawing these preferred embodiments are carried out more specific description.Figure 28 is the exploded view of a kind of preferred embodiment of expression print cartridge, Printing ink bag 201 usefulness for example are formed with the rectangular film of the good material layer of airtight performances such as metal on the macromolecule membrane surface, its periphery 201a, 201b, 201c, 201d hot melt are applied and make, on the 201a of one side, make supply port 201e.

Place the hard coat of Printing ink bag 201 203 two parts formations of housing main body (lower casing) 202 and lid (going up shell) by box-shaped, its relatively to face on form short muscle 204,204,204,204 ', 204 ', 204 ' and long muscle 205,205,205 ', 205 ' respectively, long limit 201b, 201d and minor face 201a, the 201c of Printing ink bag is divided into some five equilibriums.

These muscle 204,204 ', 205,205 ' form recess 204a, 204a ', 205a, the 205a ' that shape is equivalent to load onto printing ink, is the Printing ink bag cross sectional shape of pillow shape respectively, relative with periphery 201a, 201b, 201c, the 201d of Printing ink bag 201 to the height setting of end 204b, 204b ', 205b, 205b ' be periphery 201a, 201b that can the clamping Printing ink bag when lid 203 is fixed on the housing main body 202, height h, the h ' of 201c, 201d.

What the symbol 206 among Figure 28 was represented is to form the recess that ink supply port 201e is led to outside window.

In this example, the Printing ink bag 201 of having loaded onto ormal weight printing ink is placed in the housing main body 202, ink supply port 201e is positioned at recess 206, with lid 203 fixing after, the two sides, position of having loaded onto printing ink of Printing ink bag 201 is not supported by muscle 204,204 ', 205,205 ' recess 204a, 204a ', 205a, 205a ' with not suffering oppression, and periphery 201a, 201b, 201c, 201d by relatively to muscle 204 and 204 ' and 205 and 205 ' end 204b and 204b ' and 205b and 205b ' clamping.

In this state, even be subjected to vibration and collision, Printing ink bag 201 is determined by recess 204a, 204a ', 205a, 205a ' because of its shape, so can not produce big distortion.

In addition,, can not be subjected to bigger collision or pressure because periphery 201a, 201b, 201c, 201d by housing main body 202 and lid 203 clampings, therefore can not cause Printing ink bag to move in the enclosure because of printing ink rocks, can be damaged.

Use up at printing ink, by the stage that manufacturer reclaims, as long as lid 203 is taken off, Printing ink bag 201 just frees under the clamping of housing main body 202 and lid 203, therefore takes out very convenient.

The Printing ink bag that takes out is cleaned, changed the easily-consumed products such as sealing gasket of ink supply port, just can refill printing ink.

Like this,, cover lid 203, just can re-use having loaded onto the Printing ink bag and the foregoing the same housing main body 202 of putting into of printing ink.

According to this example, owing to do not need Printing ink bag is peeled off out, therefore can and be unlikely to damage Printing ink bag with the Printing ink bag taking-up from shell, can Printing ink bag be recycled.

Figure 29 is the accompanying drawing of expression along the cross section structure of the E-E line of Figure 28.The muscle 204,204 ' that forms on housing main body 202 and the lid 203 forms along loading onto printing ink 207, being recess 204a, the 204a ' of cross sectional shape of the Printing ink bag 201 of pillow shape.Circumference 201b, the 201d of Printing ink bag by relatively to end 204b, 204b ' clamping.

By muscle 204,204 ' with above-mentioned shape, placed restrictions on, be difficult to distortion by the Printing ink bag 201 that the pliability film forms, film can not produce the bending of acute angle.

Figure 30 is a sectional view of representing another example with the clamp structure of the circumference of print cartridge.On lower casing 202 and lid 203, the same with the example of Figure 28, form along the muscle 204,204 ' of the shape of Printing ink bag 201, on the end 204b of the circumference 201b of clamping Printing ink bag, be formed with protuberance 208, relative with it to end 204b ' on be formed with recess 208 '.Be formed with raised part 208 and recess 208 ' at some positions of Printing ink bag circumference.

Printing ink bag 201 is put into housing main body 202, cover lid 203 from the top, after being fixed, the circumference 201b of Printing ink bag is become case of bending by raised part 208 with recess 208 ' clamping.

Because therefore the some positions of the circumference said method clamping of Printing ink bag can be securely fixed in Printing ink bag in the shell.In this example, as long as lid 203 is taken off, just can easily Printing ink bag 201 be taken out, the same with the example of Figure 28, recycling of print cartridge is very convenient.

Figure 31 is a sectional view of representing another example of the preferred embodiment with the clamp structure of the circumference of print cartridge.Circumference 201b at Printing ink bag 201 is formed with through hole 209.On housing main body 202 and the lid 203, the same with the embodiment of Figure 28, form along the muscle 204,204 ' of the shape of Printing ink bag 201, on the 204b of end, form the protuberance 210 that is absorbed in through hole 209 again, relative with it to end 204 ' go up and form hole 210 '.Above-mentioned through hole 209, protuberance 210, hole 210 ' form at some positions of Printing ink bag circumference.

Printing ink bag 201 is placed in the housing main body 202, makes protuberance 210 be positioned at the position that can be absorbed in through hole 209, cover lid 203 from the top and also fixed, Printing ink bag 201 is by through hole 209 and protuberance 210 location, fixing.In this example, as long as lid 203 is taken off, just can easily Printing ink bag 201 be taken out, the same with the example of Figure 28, recycling of print cartridge is very convenient.

Figure 32 is the accompanying drawing that is used for representing the print cartridge decomposing state of another one example, and the structure of Printing ink bag 201 is the same with Figure 28's.

The hard coat of placement Printing ink bag 201 is made of with 203 two parts of lid the housing main body 202 of box-shaped, in housing main body 202 the inside, form shape and load onto printing ink, be the consistent protuberance 204,205,204 ', 205 ' of Printing ink bag cross sectional shape of pillow shape with lid 203.

Relative with periphery 201a, 201b, 201c, the 201d of Printing ink bag 201 to the height setting of end 204b, 204b ', 205b, 205b ' be periphery 201a, 201b that can the clamping Printing ink bag when lid 203 is fixed on the housing main body 202, height h, the h ' of 201c, 201d.

In the part of clamping ink supply port 201e, form recess 206,206 '.Protuberance 204,204 ' and the face that joins of Printing ink bag 201 on, be formed with and improve muscle 204c, the 204c ' that rigidity is used.

In this example, the Printing ink bag 201 of having loaded onto ormal weight printing ink is placed in the housing main body 202, make ink supply port 201e be positioned at recess 206, with lid 203 fixing after, the two sides, position of having loaded onto printing ink of Printing ink bag 201 do not suffer oppression by housings 202a, 203a and protuberance 204,205,204 ', 205 ' support, and periphery 201a, 201b, 201c, 201d by relatively to end 204b, 204b ', 205b and 205b ' support.

In this state, even be subjected to vibration and collision, Printing ink bag 201 because of its shape by by housings 202a, 203a and protuberance 204,205,204 ', 205 ' determine, so can not produce big distortion.

Because periphery 201a, 201b, 201c, 201d by end 204b, 204b ', 205b and 205b ' clamping, therefore can not cause Printing ink bag to move in the enclosure because of printing ink rocks, and can not be subjected to bigger collision or pressure, can be not damaged.

Figure 33 is the accompanying drawing of expression along the cross section structure of the F-F line of Figure 32.The cross sectional shape of housing main body 202 and lid 203 forms along loading onto printing ink 207, being the protuberance 204,204 ' of cross sectional shape of the Printing ink bag 201 of pillow shape.Circumference 201b, the 201d of Printing ink bag by relatively to end 204b, 204b ' clamping.

Because the cross sectional shape of housing main body 202 and lid 203 is that therefore the Printing ink bag 201 that is formed by the pliability film is restricted, is difficult to be out of shape along the cross sectional shape of Printing ink bag 201, film can not produce the bending of acute angle.

Figure 34 is a sectional view of representing the another one example with the clamp structure of the circumference of print cartridge.The cross sectional shape of housing main body 202 and lid 203 forms along loading onto printing ink 207, being the protuberance 204,204 ' of cross sectional shape of the Printing ink bag 201 of pillow shape.On the end 204b of the circumference 201b of clamping Printing ink bag, be formed with protuberance 208, relative with it to end 204b ' on be formed with recess 208 '.Be formed with raised part 208 and recess 208 ' at some positions of Printing ink bag circumference.

Printing ink bag 201 is put into housing main body 202, cover lid 203 from the top, after being fixed, the circumference 201b of Printing ink bag is become case of bending by raised part 208 with recess 208 ' clamping.Because therefore the some positions of the circumference said method clamping of Printing ink bag can be securely fixed in Printing ink bag in the shell.

In this example, as long as lid 203 is taken off, just can easily Printing ink bag 201 be taken out, the same with the example of Figure 28, recycling of print cartridge is very convenient.

Figure 35 is the sectional view that also has a kind of embodiment of representing print cartridge of the present invention with the clamp structure of the circumference of print cartridge.Circumference 201b at Printing ink bag 201 is formed with through hole 209.The cross sectional shape of lower casing 202 and lid 203 forms along loading onto printing ink 207, being the protuberance 204,204 ' of cross sectional shape of the Printing ink bag 201 of pillow shape.On the 204b of end, form the protuberance 210 be absorbed in through hole 209 again, relative with it to end 204 ' go up and form hole 210 '.Above-mentioned through hole 209, protuberance 210, hole 210 ' form at some positions of Printing ink bag circumference.

Printing ink bag 201 is placed in the housing main body 202, makes protuberance 210 be positioned at the position that can be absorbed in through hole 209, cover lid 203 from the top and also fixed, Printing ink bag 201 is by through hole 209 and protuberance 210 location, fixing.

In this example, as long as lid 203 is taken off, just can easily Printing ink bag 201 be taken out, the same with the example of Figure 28, recycling of print cartridge is very convenient.

As mentioned above, under the situation of the print cartridge structure that adopts each preferred embodiment, be subjected to omnibearing restriction, so can prevent the damage of print cartridge and break owing to be subjected to vibration, collision to produce the Printing ink bag distortion because of print cartridge.

Realize because the location of Printing ink bag is the shape by shell, therefore can reduce the spotty problem that causes because of assembly precision.

Owing to do not need to fix Printing ink bag with binding agent, so part count can reduce, and packaging efficiency is improved, thereby has reduced production cost.Owing to can dismantle easily, therefore can carry out recycling of print cartridge reliably.

Claims (5)

1. print cartridge that is used for ink-jet printer, after this print cartridge is coupled with the air pressure that is produced by air pressurization pump, effect by above-mentioned air pressure offers printhead with printing ink, it is characterized in that being equipped with in the above-mentioned print cartridge inner encapsulation printing ink, the Printing ink bag that forms by the pliability material, between the gabarit parts of print cartridge and above-mentioned Printing ink bag, form and add the pressure by air pressure chamber that produces by air pressurization pump, on the gabarit parts of print cartridge, be formed with the forced air intake of introducing by the forced air of air pressurization pump generation, the printing ink lead division that printing ink can be drawn from Printing ink bag is housed on above-mentioned Printing ink bag, when print cartridge is pulled down on printer, above-mentioned forced air intake is open, above-mentioned balancing gate pit is communicated with atmosphere, and above-mentioned printing ink lead division is in closed condition.

2. print cartridge according to claim 1 is characterized in that the gabarit parts of above-mentioned forced air intake and print cartridge are integrally formed, constitutes by forming the air duct cylinder that is communicated with above-mentioned balancing gate pit.

3. print cartridge according to claim 1, it is characterized in that being contained in the printing ink lead division on the above-mentioned Printing ink bag, have under situation about being contained on the printer, join, axially retreat, be in the valve part of opening, in above-mentioned valve part axial advancement when printer takes off, keep closed condition with the connecting portion of printer.

4. print cartridge according to claim 3 is characterized in that above-mentioned printing ink lead division is provided with to make above-mentioned valve part rely on the spring members of axial advancement state.

5. according to any one described print cartridge in the claim 1 to 4, it is characterized in that above-mentioned printing ink lead division leads to the outside by the peristome that forms on the print cartridge gabarit parts from above-mentioned gabarit parts, and between above-mentioned peristome and printing ink lead division, annulus is set, also have the above-mentioned annulus of compressing, make the locked part that seals between peristome and the printing ink lead division.

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