CN102991127B - Liquid ejection apparatus, print-head nozzle end cap and liquid ejection apparatus maintenance method - Google Patents
Liquid ejection apparatus, print-head nozzle end cap and liquid ejection apparatus maintenance method Download PDFInfo
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- CN102991127B CN102991127B CN201210328815.3A CN201210328815A CN102991127B CN 102991127 B CN102991127 B CN 102991127B CN 201210328815 A CN201210328815 A CN 201210328815A CN 102991127 B CN102991127 B CN 102991127B
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Abstract
The invention provides a kind of liquid ejection apparatus, in each operation that this liquid ejection apparatus can fill at ink, cleans and rinse, prevent dispersing of the ink sprayed from print-head nozzle.The liquid ejection apparatus (1) of an embodiment of the invention comprises: print-head nozzle (20), this print-head nozzle (20) ejection drop; And print-head nozzle end cap (10), this print-head nozzle end cap (10) becomes the lid of print-head nozzle (20), print-head nozzle end cap (10) becomes the lid of print-head nozzle (20), at least one party in print-head nozzle end cap bearing surface (12) and print-head nozzle bearing surface (22), is formed with the connection structure making the inner side and outer side of print-head nozzle end cap (10) become continuous space.
Description
Technical field
The present invention relates to liquid ejection apparatus and print-head nozzle end cap, this liquid ejection apparatus possess in the maintenance operation of the print-head nozzle implemented when non-printing prevent ink to around the mechanism that pollutes.
Background technology
In ink-jet recording apparatus, when print-head nozzle changes from predetermined state, printing quality obviously declines.In order to prevent the decline of printing quality, when ink-jet recording apparatus does not carry out the non-printing of printing, carry out the operation being referred to as cleaning and rinsing.
In patent document 1, disclose following technology: in order to prevent the ink sprayed from splashing in the process of cleaning and flushing etc. to around pollute, the ink making coating member receive record head to spray.Under the state that record head and coating member are crimped, the space that record head and coating member are formed is sealing state.Thus, the structure of the ink that coating member storage record head sprays is formed.
Patent document 1: Japanese Unexamined Patent Publication 2000-255075 publication (on September 19th, 2000 is open)
But, as mentioned above, the sealing in the space in the print-head nozzle end cap formed by making print-head nozzle end cap cover print-head nozzle is higher, along with the enforcement of cleaning and flushing etc., the pressure increase in this space.Its reason is, if from print-head nozzle ejection ink, then the volume in this space is occupied by ink, is originally present in the pressure increase of the air in this space.
When having broken the sealing in above-mentioned space in the rising along with this pressure, while the pressure that release is higher, ink forms the spittle and pollutes surrounding.Even if when maintaining the sealing in above-mentioned space in the operation of filling at ink, clean and rinsing, when making print-head nozzle and print-head nozzle end cap separates, also higher pressure can be discharged.Now, ink forms the spittle and pollutes surrounding.
Summary of the invention
The object of the application is to provide a kind of liquid ejection apparatus, filling as ink, cleaning and flushing etc. like that in force feed mode in the operations such as the cleaning of the print-head nozzle of fluid cartridge conveying liquid and flushing, this liquid ejection apparatus can prevent dispersing of the ink sprayed from print-head nozzle.
In order to solve the above problems, the feature of liquid ejection apparatus of the present invention is, this liquid ejection apparatus comprises: print-head nozzle, this print-head nozzle ejection drop, and print-head nozzle end cap, this print-head nozzle end cap becomes the lid of above-mentioned print-head nozzle, the part except this squit hole on the surface being formed with the squit hole of above-mentioned drop of above-mentioned print-head nozzle end cap and print-head nozzle abuts against, thus become the lid of above-mentioned print-head nozzle, in the face abutted with the surface of above-mentioned print-head nozzle of above-mentioned print-head nozzle end cap, the i.e. face abutted with above-mentioned print-head nozzle end cap of print-head nozzle end cap bearing surface and above-mentioned print-head nozzle, namely at least one party in print-head nozzle bearing surface, be formed with the connection structure making the inner side and outer side of above-mentioned print-head nozzle end cap become continuous space.
Print-head nozzle end cap of the present invention is the end cap of the print-head nozzle for spraying drop, it is characterized in that, utilize the face, i.e. the print-head nozzle end cap bearing surface that directly contact with the part except this squit hole on the surface being formed with the squit hole of above-mentioned drop of print-head nozzle to form the lid of above-mentioned print-head nozzle, above-mentioned print-head nozzle end cap bearing surface is formed the connection structure making the inner side and outer side of this end cap become continuous space.
The maintenance method of liquid ejection apparatus of the present invention is the print-head nozzle possessed for spraying drop, become the print-head nozzle end cap of the lid of above-mentioned print-head nozzle, and the maintenance method of the print-head nozzle of the liquid ejection apparatus of fluid cartridge, it is characterized in that, the maintenance method of this liquid ejection apparatus comprises liquid and sends into operation, send in operation to utilize at this liquid and apply, higher than the force feed mode of atmospheric pressure, liquid is sent into aforesaid liquid box to liquid, in the face abutted against with the surface of above-mentioned print-head nozzle of above-mentioned print-head nozzle end cap, the i.e. face abutted against with above-mentioned print-head nozzle end cap of print-head nozzle end cap bearing surface and above-mentioned print-head nozzle, namely at least one party in print-head nozzle bearing surface, be formed with the connection structure making the inner side and outer side of above-mentioned print-head nozzle end cap become continuous space, send in operation at aforesaid liquid, above-mentioned print-head nozzle end cap is utilized to cover above-mentioned print-head nozzle.
Owing to being formed with above-mentioned connection structure, therefore, the space of the end cap interior that above-mentioned print-head nozzle abuts against with above-mentioned print-head nozzle end cap and formed is communicated with the space of end cap outside, prevents the space of above-mentioned end cap interior from becoming seal cavity.Thus, in the operations such as ink filling, cleaning and flushing, the pressure increase in above-mentioned space is prevented.Thus, utilizing force feed mode in the operations such as the cleaning of print-head nozzle of fluid cartridge conveying liquid and flushing, can prevent from dispersing from the ink of print-head nozzle ejection.
More preferably, above-mentioned print-head nozzle end cap bearing surface is the elastomer surrounded on the face being formed with above-mentioned squit hole around this face.Thus, when print-head nozzle end cap and print-head nozzle abut against, can the elasticity that above-mentioned elastomer has be used.Thus, print-head nozzle and print-head nozzle end cap close contact is made.Thus, in the operations such as the cleaning of print-head nozzle and flushing, prevent from leaking from the ink of print-head nozzle ejection from the abutment portion of print-head nozzle and print-head nozzle end cap.
More preferably, above-mentioned connection is configured to convex structure.Owing to possessing said structure, therefore when above-mentioned print-head nozzle end cap and above-mentioned print-head nozzle abut against, the above-mentioned convex structure that above-mentioned print-head nozzle end cap possesses contacts with above-mentioned print-head nozzle.Now, the part except above-mentioned convex structure of above-mentioned print-head nozzle end cap does not contact with above-mentioned print-head nozzle.Thus, the space of the inner and outer connection for print-head nozzle end cap is defined.Thus, prevent the space formed when above-mentioned print-head nozzle and above-mentioned print-head nozzle end cap abut against from becoming seal cavity.
The connection becoming continuous space in the print-head nozzle end cap bearing surface inner side and outside possessed for making print-head nozzle end cap abutted with print-head nozzle due to liquid ejection apparatus of the present invention constructs, therefore, utilizing force feed mode in the operations such as the cleaning of print-head nozzle of fluid cartridge conveying liquid and flushing, playing and can prevent from dispersing this effect from the ink of print-head nozzle ejection.
Accompanying drawing explanation
Fig. 1 is the print-head nozzle end cap of an embodiment of the invention and the sketch of print-head nozzle.
Fig. 2 is the print-head nozzle end cap of an embodiment of the invention and the sketch of print-head nozzle.
(a) of Fig. 3 is the stereogram of the summary of the print-head nozzle end cap that an embodiment of the invention are shown.(b) of Fig. 3 is the sketch in the cross section of the liquid ejection apparatus 200 that an embodiment of the invention are shown.
Detailed description of the invention
Below, be described with reference to the embodiment of Fig. 1 and Fig. 2 to a technical scheme of the present invention.
embodiment 1
The liquid ejection apparatus 1 of a technical scheme of the present invention possesses the print-head nozzle end cap 10 shown in Fig. 1 and print-head nozzle 20.
print-head nozzle 20
Print-head nozzle 20 possesses nozzle (squit hole) 21, the liquid (following, to be set to ink in the present embodiment) that this nozzle 21 sprays to printed thing.
Print-head nozzle 20 possesses not shown print cartridge.Utilize not shown liquid storage tank to cartridge filling ink.Though be known to several method to cartridge filling ink, be described adopting the method for pressure sending type at this.When the method for pressure sending type, the upstream side of pump to print cartridge is utilized to pressurize until reach higher than atmospheric pressure.The pressure utilizing this to be applied in is ink from liquid storage tank to fluid cartridge force feed.Illustrate by the ink of force feed as force feed ink 32 in FIG.When filling ink, the ink near the nozzle 21 being originally present in print-head nozzle 20 sprays from nozzle as ejection ink 30.
Because dust is attached to nozzle 21, ink evaporates and cause the medium external factor of stream that the viscosity of ink increases, air is mixed into ink, sometimes cause the state deteriorating of print-head nozzle 20.The deterioration of this state becomes the reason of printing quality decline.Thus, in order to make the state of print-head nozzle 20 return to deterioration before state, or prevent worsen and implement be referred to as cleaning and rinse operation.So-called cleaning refers to by pressurizeing to the upstream side of print-head nozzle 20 and forcibly sprays the operation of a large amount of ejection ink 30 from nozzle 21.On the other hand, so-called flushing refers to by exporting virtual drive singal to print-head nozzle and will discharge the operation of ink 30 ejection.In addition, in this manual, ink filling, cleaning and flushing etc. are called " maintenance operation " by the operation of the maintenance in force feed mode, Liquid transfer being carried out print-head nozzle to fluid cartridge like that.In addition, the method being used for implementing to maintain operation is referred to as maintenance method.
In maintenance operation, ejection ink 30 is sprayed from nozzle 21.In order to prevent the inside spraying ink 30 pairs of liquid ejection apparatus from polluting, liquid ejection apparatus possesses print-head nozzle end cap 10.
print-head nozzle end cap 10
With reference to Fig. 1, printhead nozzle end cap 10 is described.As mentioned above, print-head nozzle end cap 10 is the components for preventing the inside spraying ink 30 pairs of liquid ejection apparatus from polluting.As shown in Figure 1, print-head nozzle end cap 10 is set to abut with the face (being set to print-head nozzle bearing surface 22) comprising nozzle 21 of print-head nozzle 20.By in the face opposed with print-head nozzle bearing surface 22 of print-head nozzle end cap 10, be set to print-head nozzle end cap bearing surface 12 near the face of print-head nozzle 20.
Print-head nozzle end cap bearing surface 12 is provided with the protuberance 11 of convex structure.When making print-head nozzle end cap 10 abut with print-head nozzle 20, protuberance 11 with in print-head nozzle bearing surface 22, region except nozzle 21 contacts.Consequently, without the need to making print-head nozzle bearing surface 22 directly contact with print-head nozzle end cap bearing surface 12, just gap can be formed as shown in Figure 1 between two faces.Even if when making print-head nozzle end cap 10 abut with print-head nozzle 20, above-mentioned gap also can be utilized to be communicated with the inner side and outer side of print-head nozzle end cap 10, to form continuous space.Thus, protuberance 11 constructs as the connection that print-head nozzle end cap of the present invention has and plays function.
Liquid ejection apparatus 1 makes print-head nozzle end cap bearing surface 12 abut with print-head nozzle bearing surface 22 in the mode of surrounding the surrounding of print-head nozzle 21, and thus, print-head nozzle end cap 10 receives ejection ink 30.When making print-head nozzle end cap 10 abut with print-head nozzle 20, as long as the inner surface of print-head nozzle end cap bearing surface 12 and print-head nozzle bearing surface 22 and be that the region do not contacted with print-head nozzle 21 abuts.More preferably, the area of print-head nozzle bearing surface 22 is set as larger than the size of print-head nozzle end cap bearing surface 12.Thus, even if when the position that print-head nozzle end cap 10 abuts with print-head nozzle 20 is departed from, print-head nozzle end cap 10 and print-head nozzle 20 also can abut exactly.Thus, do not need to control position when making print-head nozzle end cap 10 abut with print-head nozzle 20 accurately.
Assembly precision etc. when position when print-head nozzle end cap 10 is abutted with print-head nozzle 20 is depended on the machining accuracy of the various parts forming liquid ejection apparatus 1 itself and assembles various parts.For liquid ejection apparatus 1, when making print-head nozzle end cap 10 abut with print-head nozzle 20, not higher to the status requirement of this abutting precision.Its reason is, though machining accuracy and assembly precision poor and produce between print-head nozzle end cap 10 and print-head nozzle 20 and depart from, owing to utilizing elastomer to cover print-head nozzle 20 around, therefore also inhibits dispersing of ink.Therefore, it is possible to determine form liquid ejection apparatus 1 various parts precision and assemble various part time permissible accuracy, and with precision when print-head nozzle end cap 10 and print-head nozzle 20 are abutted have nothing to do.
Print-head nozzle end cap 10 possesses 6 protuberances 11.More preferably, the quantity of convex structure that print-head nozzle end cap of the present invention possesses is multiple.Quantity due to convex structure is multiple, and the position that therefore convex structure contacts with print-head nozzle bearing surface has multiple.Thus, when making print-head nozzle abut with print-head nozzle end cap, stable contact condition can be obtained.In other words, the space be communicated with the inner and outer of print-head nozzle end cap can stably be formed.The characteristic that the size considering print-head nozzle and print-head nozzle end cap and the material forming print-head nozzle end cap possess, as long as determine the quantity of convex structure.
Print-head nozzle end cap 10 is made up of the fluorubber of black.As shown in the embodiment, the material preferably forming print-head nozzle end cap of the present invention is elastomer.Such as fluorubber, silicon rubber and polyurethane resin etc. can be listed.Because print-head nozzle end cap is made up of elastomer, therefore when making print-head nozzle end cap abut with print-head nozzle, can the elasticity that elastomer has be used.Therefore, in the region except above-mentioned connection structure, print-head nozzle and print-head nozzle end cap close contact.
In addition, the material preferably forming print-head nozzle end cap 10 is the material of at least any one party of the light that can absorb in visibility region and ultraviolet region.When the ink that liquid ejection apparatus of the present invention uses be comprise with the liquid for the pigment of representative such as black, blue-green, magenta and yellow, likely cause fading or variable color because of the light irradiated in visibility region and ultraviolet region.On the other hand, also can suppose following situation: the ink in press used is not the liquid comprising pigment, but utilize organic solvent to the liquid, the such as photoresist that have photosensitive material and dilute.Take photoresist as the light had in the visibility region and ultraviolet region that photosensitive liquid nernst cell interior lighting device produces of representative.Because print-head nozzle end cap adopts the material of at least any one party that can absorb light in visibility region and ultraviolet region, therefore, it is possible to prevent from above-mentionedly there is photosensitive liquid sensing light.
In the present embodiment, the height of protuberance 11 is set to 100 μm.The shape of protuberance 11 without particular limitation of, such as rounded when top view, the shape be made up of circular arc can be used when analysing and observe observation.
employ the maintenance method of print-head nozzle end cap 10
Under the state making print-head nozzle end cap 10 abut with print-head nozzle 20, by implementing the maintenance operation of print-head nozzle 20, ejection ink 30 is absorbed in print-head nozzle end cap 10 thus.That is, ejection ink 30 can not leak towards the outside of print-head nozzle end cap 10 and pollute surrounding.And the pressure in the space formed by print-head nozzle end cap 10 and print-head nozzle 20 also can not rise.Thus, can prevent from spraying ink 30 to pollute the surrounding of liquid ejection apparatus 1 along with the enforcement of maintenance operation.
The pollution that ink around liquid ejection apparatus 1 causes becomes the reason of the pollution of printed article and the decline of printing quality.In maintenance operation, ejection ink 30 is to polluting the frequency meaning that the carrying out that can reduce liquid ejection apparatus 1 maintains around liquid ejection apparatus 1.Thus, the operating cost of liquid ejection apparatus 1 can be reduced.
Not carry out under the state of printing at liquid ejection apparatus 1, namely non-printing time, print-head nozzle 20 is waited in not opposed with printed thing position.In this manual, the position of being waited for when this non-printing by print-head nozzle 20 is set to " holding fix ".The print-head nozzle end cap 10 that liquid ejection apparatus 1 possesses is arranged at the position opposed with the holding fix of print-head nozzle 20.If detect, print-head nozzle 20 is waited at holding fix, then liquid ejection apparatus 1 mechanically makes print-head nozzle end cap 10 move and abut with print-head nozzle 20.Now, liquid ejection apparatus 1 also can mechanically make print-head nozzle 20 move and abut with print-head nozzle end cap 10.In addition, the operation manually carrying out print-head nozzle end cap 10 is abutted with print-head nozzle 20 can also be utilized.
More preferably, liquid ejection apparatus 1 is set as, print-head nozzle 20 and print-head nozzle end cap 10 abut all the time when non-printing.By lid being covered in print-head nozzle 20 when not printing, thus, ejection ink 30 can not pollute the surrounding of liquid ejection apparatus 1, can also obtain other advantages as follows on this basis.
A () prevents the dust etc. be present in air to be adsorbed in nozzle 21.
B (), when ink comprises pigment, can prevent fading and variable color of ink.When ink is photoresist etc., can prevent ink from sensing light.
The evaporation capacity of c solvent that () suppresses ink to comprise, suppresses the viscosity of the ink near nozzle to rise.Thus the possibility of spray nozzle clogging is reduced.
Because the connection structure of present embodiment is less, therefore between the inner side and outer side of print-head nozzle end cap, there is not continuous print air-flow.Therefore, the evaporation capacity of the solvent that inhibit ink to comprise, reduces the possibility of spray nozzle clogging.
The inner side of print-head nozzle end cap 10 has the recessed structure sunk from print-head nozzle end cap bearing surface 12.Thus, ejection ink 30 is stored in recessed structure part.Stored ink is set to storage ink 31.Owing to repeatedly carrying out the maintenance operation of print-head nozzle 20, therefore storage ink 31 increases.Therefore, need to reclaim storage ink 31 in the suitable moment from print-head nozzle end cap 10.In order to reclaim storage ink 31, print-head nozzle end cap 10 has the openings 13 through toward the outer side from the inner side of print-head nozzle end cap 10.Usually, utilize valve not shown in Fig. 1 that openings 13 is closed.Only open valve when reclaiming storage black 31.Be provided with pump 40 in the downstream of openings 13 and attract storage ink 31.
embodiment 2
Liquid ejection apparatus 100 possesses the print-head nozzle end cap 50 shown in Fig. 2 and print-head nozzle 20.In addition, identical Reference numeral is marked to the component identical with the component illustrated by embodiment 1, and the description thereof will be omitted.Specifically, the print-head nozzle 20 that possesses of liquid ejection apparatus 100 is identical with the print-head nozzle 20 in embodiment 1.Thus, in embodiment 2, omit the explanation of print-head nozzle 20, only printhead nozzle end cap 50 is described.
print-head nozzle end cap 50
The structure of print-head nozzle end cap 50 is compared with the structure of print-head nozzle end cap 10, and difference is the connection structure being arranged at print-head nozzle end cap bearing surface 52.The connection arranged in convex structure is not had to construct at print-head nozzle end cap bearing surface 52.Thus, when making print-head nozzle end cap 50 abut with print-head nozzle 20, print-head nozzle end cap bearing surface 52 directly contacts with print-head nozzle bearing surface 22.Under this state, in order to make the inner side and outer side of print-head nozzle end cap 50 form continuous space, print-head nozzle end cap 50 possesses the otch 51 as being communicated with structure.
The size of the elasticity considering the material forming print-head nozzle end cap and the power putting on print-head nozzle end cap when making print-head nozzle end cap abut with print-head nozzle, as long as determine the degree of depth of slitted configurations.
Print-head nozzle end cap 50 possesses 10 otch 51.More preferably, the quantity of slitted configurations that print-head nozzle end cap of the present invention possesses is multiple.Owing to possessing multiple slitted configurations, therefore in the enforcement of maintenance operation, whichsoever slitted configurations is blocked by the ink sprayed from print-head nozzle, because print-head nozzle end cap possesses multiple slitted configurations, thus can both proceed without barrier to maintain operation.
Print-head nozzle end cap 50 is made up of the fluorubber of black.More preferably, the material forming print-head nozzle end cap is elastomer.In addition, more preferably, the material forming print-head nozzle end cap is the material of at least any one party of the light that can absorb in visibility region and ultraviolet region.The reason that the print-head nozzle end cap being more preferably present embodiment possesses said structure is identical with the reason described in embodiment 1.
The maintenance method employing print-head nozzle end cap 50 is also identical with the maintenance method employing print-head nozzle end cap 10.
In addition, though as long as be communicated with at least one party that structure is arranged at print-head nozzle and print-head nozzle end cap, be more preferably positioned at print-head nozzle end cap.Its reason is, even if when being communicated with structure and such as suffering to pollute or occur wearing and tearing etc. because of ink etc. thus cannot play as when being communicated with the function of structure, by changing print-head nozzle end cap, the maintenance of print-head nozzle end cap also easily can be restarted.
In addition, when print-head nozzle bearing surface possesses connection structure, such as, the concrete structure of this connection structure both can adopt convex structure equally with embodiment 1, also can adopt slitted configurations in the same manner as embodiment 2.
Possess convex structure as when being communicated with structure at print-head nozzle bearing surface, this print-head nozzle bearing surface can utilize the material identical with the material forming print-head nozzle to form, and adopts the structure formed as one with print-head nozzle bearing surface.Possess convex structure as when being communicated with structure at print-head nozzle bearing surface, this print-head nozzle bearing surface can utilize the material different from the material forming print-head nozzle to form, and adopts the structure being installed on print-head nozzle bearing surface.
In addition, when being communicated with structure and being positioned at print-head nozzle bearing surface, the quantity being also more preferably this connection structure is multiple.Consider the elasticity that the material forming print-head nozzle end cap possesses respectively with the material being communicated with structure that formation print-head nozzle possesses, as long as determine the quantity being communicated with structure, to arrange the space be communicated with the inner and outer of print-head nozzle end cap exactly.
embodiment 3
Liquid ejection apparatus 200 possesses the print-head nozzle 20 shown in Fig. 3 and print-head nozzle end cap 60.In addition, identical Reference numeral is marked to the component identical with the component illustrated by embodiment 1, and the description thereof will be omitted.Specifically, the print-head nozzle 20 that possesses of liquid ejection apparatus 200 is identical with the print-head nozzle 20 in embodiment 1.Thus, in embodiment 3, omit the explanation of print-head nozzle 20, only printhead nozzle end cap 60 is described.
print-head nozzle end cap 60
Print-head nozzle end cap 60 possesses end cap inwall 61 and end cap outer wall 62.End cap inwall is provided with otch 63.(a) of Fig. 3 is the stereogram of the summary that print-head nozzle end cap 60 is shown.(b) of Fig. 3 is the sketch in the cross section of the liquid ejection apparatus 200 that the position being positioned at otch 63 is shown.
In print-head nozzle end cap 60, the upper surface of end cap inwall 61 becomes print-head nozzle end cap bearing surface, and directly contacts with print-head nozzle bearing surface.Otch 63 is the connection structures for making the space of the inner side and outside that are formed in end cap inwall 61 become continuous space.And, between end cap outer wall 62 and print-head nozzle 20, be formed with gap.This gap is the connection structure for making the space of the inner side and outside that are formed in end cap outer wall 62 become continuous space.
In print-head nozzle 60, end cap inwall 61 plays function as the end cap preventing the ink sprayed from nozzle 21 from dispersing.Spray in the space of air via the gap be arranged between end cap outer wall and print-head nozzle 20 and otch 63 to the outside being formed in print-head nozzle 60 of maintaining in operation and ink together sprays.Thus, when carrying out maintenance operation, the pressure being formed in the space of the inner side of end cap inwall 61 can not increase.
When the air sprayed from nozzle 21 is more, there is the possibility that ink together leaks from otch 63 towards the outside of end cap inwall 61 with air.Even if in this case, because print-head nozzle end cap 60 possesses end cap outer wall 62, therefore there is not black situation of leaking towards the outside of print-head nozzle end cap 60.
Because print-head nozzle end cap 60 also possesses end cap outer wall 62 except end cap inwall 61, therefore this print-head nozzle 60 can prevent ink from dispersing towards periphery.
supplement item
As mentioned above, the feature of the liquid ejection apparatus 1 of an embodiment of the invention is, this liquid ejection apparatus 1 possesses for spraying the print-head nozzle 20 of ink and becoming the print-head nozzle end cap 10 of lid of print-head nozzle 20, print-head nozzle end cap 10 abuts against with the part except nozzle 21 on the surface being formed with the nozzle 21 of ink of print-head nozzle 20, become the lid of print-head nozzle 20 thus, in the face abutted against with the surface of print-head nozzle 20 of print-head nozzle end cap 10, the i.e. face abutted against with print-head nozzle end cap 10 of print-head nozzle end cap bearing surface 12 and print-head nozzle 20, namely at least one party in print-head nozzle bearing surface 22, be formed with the connection structure making the inner side and outer side of print-head nozzle end cap 10 become continuous space.
The print-head nozzle end cap 10 of an embodiment of the invention is end caps of the print-head nozzle 20 for spraying ink, it is characterized in that, this print-head nozzle end cap 10 utilizes face, i.e. the print-head nozzle end cap bearing surface 12 directly contacted with the part except nozzle 21 on the surface being formed with the nozzle 21 of ink of print-head nozzle 20 to become the lid of print-head nozzle 20, is formed with the connection structure making the inner side and outer side of this end cap become continuous space at print-head nozzle end cap bearing surface 12.
The maintenance method of the liquid ejection apparatus 1 of an embodiment of the invention is the print-head nozzles 20 possessing ejection ink, as the print-head nozzle end cap 10 of the lid of print-head nozzle 20, and the maintenance method of the print-head nozzle 20 of the liquid ejection apparatus 1 of fluid cartridge, it is characterized in that, the maintenance method of this liquid ejection apparatus 1 comprises ink and sends into operation, send in operation to utilize at this ink and apply, higher than the force feed mode of atmospheric pressure, ink is sent into above-mentioned print cartridge to ink, in the face abutted against with the surface of print-head nozzle 20 of print-head nozzle end cap 10, the i.e. face abutted against with print-head nozzle end cap 10 of print-head nozzle end cap bearing surface 12 and print-head nozzle 20, namely at least one party in print-head nozzle bearing surface 22, be formed with the connection structure making the inner side and outer side of print-head nozzle end cap 10 become continuous space, send in operation at above-mentioned ink, utilize print-head nozzle end cap 10 to cover print-head nozzle 20.
Owing to being formed with above-mentioned connection structure, therefore, the space of the end cap interior that print-head nozzle 10 abuts against with print-head nozzle end cap 20 and formed is communicated with the space of end cap outside, prevents above-mentioned space from becoming seal cavity.Thus, in the operations such as ink filling, cleaning and flushing, the pressure increase in above-mentioned space is prevented.Thus, in force feed mode in the operations such as the cleaning of print-head nozzle 20 of fluid cartridge conveying liquid and flushing, the ejection ink 30 from print-head nozzle 20 can be received.Thus, ejection ink 30 is prevented to disperse and pollute the surrounding of liquid ejection apparatus 1.
Print-head nozzle end cap abutting part 12 is the elastomers surrounded on the print-head nozzle bearing surface 22 being formed with nozzle 21 around print-head nozzle bearing surface 22.Thus, when making print-head nozzle end cap 10 abut against with print-head nozzle 20, the elasticity that elastomer has can be utilized.Therefore, in the region except protuberance 11 on print-head nozzle end cap bearing surface 12, print-head nozzle 20 and print-head nozzle end cap 10 close contact.Thus, in the operations such as the cleaning of print-head nozzle 20 and flushing, prevent from leaking from the ink of print-head nozzle ejection from the abutment portion of print-head nozzle and print-head nozzle end cap.
The connection structure that print-head nozzle end cap 10 possesses is protuberance 11.Owing to possessing said structure, therefore when making print-head nozzle end cap 10 abut against with print-head nozzle 20, the protuberance 11 that above-mentioned print-head nozzle end cap 10 possesses contacts with print-head nozzle 20.Now, the part except protuberance 11 of print-head nozzle end cap 10 does not contact with print-head nozzle 20.Thus, the space that the inner and outer defining print-head nozzle end cap is communicated with.Thus, prevent the space formed when print-head nozzle 20 abuts against with print-head nozzle end cap 10 from becoming seal cavity.
Print-head nozzle end cap 10 possesses multiple protuberance 11.Owing to possessing said structure, the position that therefore protuberance 11 contacts with print-head nozzle 20 becomes multiple.Thus, when making print-head nozzle 20 abut against with print-head nozzle end cap 10, stable contact condition can be obtained.In other words, the space that the inner and outer of print-head nozzle end cap is communicated with can stably be formed.
The shape of blowing unit 11 is rounded when top view, is made up of circular arc when analysing and observe observation.Owing to possessing said structure, therefore, even if in the rough situation of print-head nozzle bearing surface 22, print-head nozzle end cap bearing surface 12 also can be made to abut with print-head nozzle bearing surface 22 with stable state.
The connection structure that print-head nozzle end cap 50 possesses is the otch 51 that the inner side and outer side of print-head nozzle end cap 50 is communicated with.Owing to possessing said structure, therefore, it is possible to the contact area that setting is wider when making print-head nozzle end cap 50 abut with print-head nozzle 20.Thus, print-head nozzle end cap 50 can be made to abut with stable state with print-head nozzle 50.
The quantity of the otch 51 that print-head nozzle end cap 50 possesses is multiple.Owing to possessing said structure, therefore when the otch 51 of any one is ejected ink 30 blocking, the space formed can both be remained continuous print state when print-head nozzle 20 abuts with print-head nozzle end cap 10.
The print-head nozzle end cap 10 that liquid ejection apparatus 1 and liquid ejection apparatus 100 possess and print-head nozzle end cap 50 possess from the inner side of respective print-head nozzle end cap openings 13 through toward the outer side.Thereby, it is possible to store ink 31 towards the outside ejection of each print-head nozzle end cap.
The print-head nozzle end cap 10 that liquid ejection apparatus 1 and liquid ejection apparatus 100 possess and print-head nozzle end cap 50 utilize the material of the light of at least any one party of the light that can absorb in visibility region and ultraviolet region to be formed.When the ink being used in printing be comprise with the liquid for the pigment of representative such as black, blue-green, magenta and yellow, may cause fading or variable color because of the light irradiated in above-mentioned visibility region and ultraviolet region.The ink being used in printing may not be the liquid comprising above-mentioned pigment, but utilizes organic solvent to the liquid, the such as photoresist that have photosensitive material and dilute.The photosensitive liquid that has with photoresist for representative senses light in the visibility region that interior illuminator produces and ultraviolet region.Because print-head nozzle end cap 10 and print-head nozzle end cap 50 possess said structure, therefore, it is possible to prevent fading or variable color of the liquid comprising above-mentioned pigment.Equally, can prevent having above-mentioned photosensitive liquid carries out photosensitive.
The present invention is not limited to each embodiment above-mentioned, can carry out various change in the scope shown in claim, the embodiment obtained by suitably combinationally using respectively disclosed technical method in various embodiments is also contained in technical scope of the present invention.
industrial utilizability
The present invention can be applied to the state of the print-head nozzle in order to keep liquid ejection apparatus to possess and the maintenance operation implemented.
description of reference numerals
1 liquid ejection apparatus; 10 print-head nozzle end caps; 11 protuberances; 12 print-head nozzle end cap bearing surfaces; 13 openings; 20 print-head nozzles; 21 nozzles (squit hole); 22 print-head nozzle bearing surfaces; 30 ejection ink; 31 storage ink; 32 force feed ink; 40 pumps.
Claims (5)
1. a liquid ejection apparatus, this liquid ejection apparatus comprises:
Print-head nozzle, this print-head nozzle ejection drop; And
Print-head nozzle end cap, the part except this squit hole on the surface being formed with the squit hole of above-mentioned drop of above-mentioned print-head nozzle end cap and print-head nozzle abuts against, and becomes the lid of above-mentioned print-head nozzle thus,
It is characterized in that,
When carrying out the maintenance of above-mentioned print-head nozzle, this print-head nozzle end cap becomes the lid of above-mentioned print-head nozzle,
At least one party in the face, i.e. the print-head nozzle bearing surface that abut against with above-mentioned print-head nozzle end cap of the face, i.e. print-head nozzle end cap bearing surface and the above-mentioned print-head nozzle that abut against with the surface of above-mentioned print-head nozzle of above-mentioned print-head nozzle end cap, be formed with the connection structure making the inner side and outer side of above-mentioned print-head nozzle end cap become continuous space
When above-mentioned drop being sprayed from above-mentioned print-head nozzle when carrying out above-mentioned maintenance, be non-confined space between above-mentioned print-head nozzle and above-mentioned print-head nozzle end cap.
2. liquid ejection apparatus according to claim 1, is characterized in that,
Above-mentioned print-head nozzle end cap bearing surface is the elastomer surrounded on the face being formed with above-mentioned squit hole around this face.
3. liquid ejection apparatus according to claim 1, is characterized in that,
Above-mentioned connection is configured to convex structure.
4. a print-head nozzle end cap, this print-head nozzle end cap is the end cap of the print-head nozzle for spraying drop, it is characterized in that,
Utilize and form the lid of above-mentioned print-head nozzle with face, i.e. print-head nozzle end cap bearing surface that the part except this squit hole on the surface being formed with the squit hole of above-mentioned drop of print-head nozzle directly contacts,
It is characterized in that,
This print-head nozzle end cap is the end cap when carrying out the maintenance of above-mentioned print-head nozzle for this print-head nozzle,
Above-mentioned print-head nozzle end cap bearing surface is formed the connection structure making the inner side and outer side of this end cap become continuous space,
When above-mentioned drop being sprayed from above-mentioned print-head nozzle when carrying out above-mentioned maintenance, be non-confined space between above-mentioned print-head nozzle and above-mentioned print-head nozzle end cap.
5. the maintenance method of a liquid ejection apparatus, the maintenance method of this liquid ejection apparatus is the maintenance method possessing print-head nozzle for spraying drop, becoming the print-head nozzle of the print-head nozzle end cap of the lid of above-mentioned print-head nozzle and the liquid ejection apparatus of fluid cartridge when carrying out the maintenance of above-mentioned print-head nozzle, it is characterized in that
The maintenance method of this liquid ejection apparatus comprises liquid and sends into operation, sends in operation at this liquid, utilizes and applies, higher than the force feed mode of atmospheric pressure, liquid is sent into aforesaid liquid box to liquid,
At least one party in the face, i.e. the print-head nozzle bearing surface that abut with above-mentioned print-head nozzle end cap of the face, i.e. print-head nozzle end cap bearing surface and the above-mentioned print-head nozzle that abut against with the surface of above-mentioned print-head nozzle of above-mentioned print-head nozzle end cap, be formed with the connection structure making the inner side and outer side of above-mentioned print-head nozzle end cap become continuous space
Send in operation at aforesaid liquid, utilize above-mentioned print-head nozzle end cap to cover above-mentioned print-head nozzle, thus when above-mentioned drop is sprayed from above-mentioned print-head nozzle, be non-confined space between above-mentioned print-head nozzle and above-mentioned print-head nozzle end cap.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011197692 | 2011-09-09 | ||
| JP2011197692A JP5778532B2 (en) | 2011-09-09 | 2011-09-09 | Liquid ejecting apparatus and maintenance method of liquid ejecting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102991127A CN102991127A (en) | 2013-03-27 |
| CN102991127B true CN102991127B (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210328815.3A Active CN102991127B (en) | 2011-09-09 | 2012-09-07 | Liquid ejection apparatus, print-head nozzle end cap and liquid ejection apparatus maintenance method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5778532B2 (en) |
| CN (1) | CN102991127B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6368565B2 (en) * | 2014-07-07 | 2018-08-01 | 株式会社ミマキエンジニアリング | Inkjet recording apparatus and inkjet recording method |
| CN106827817A (en) * | 2015-12-23 | 2017-06-13 | 石立公 | For the stopper with inner bulge of random labelling head |
| CN107297954A (en) * | 2016-04-14 | 2017-10-27 | 精工电子打印科技有限公司 | The cleaning device and liquid injection apparatus of jet head liquid |
| CN110406261B (en) * | 2019-07-31 | 2020-07-17 | 湖南长城信息金融设备有限责任公司 | Automatic sealing rotary cleaning device for ink box spray head |
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| EP1707372A2 (en) * | 2005-03-29 | 2006-10-04 | Seiko Epson Corporation | Head capping device and liquid ejecting apparatus incorporating the same |
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| JPS6013556A (en) * | 1983-07-05 | 1985-01-24 | Canon Inc | Ink jet recording apparatus |
| JPH03184872A (en) * | 1989-12-15 | 1991-08-12 | Canon Inc | Liquid jet recorder |
| JPH10181033A (en) * | 1996-12-27 | 1998-07-07 | Oki Data:Kk | Cap |
| JP3417449B2 (en) * | 1997-01-20 | 2003-06-16 | セイコーエプソン株式会社 | Ink jet recording device |
| JP3424494B2 (en) * | 1997-05-07 | 2003-07-07 | セイコーエプソン株式会社 | Ink jet recording device |
| JP3582395B2 (en) * | 1999-03-10 | 2004-10-27 | セイコーエプソン株式会社 | Ink jet recording device |
| JP4600002B2 (en) * | 2004-11-15 | 2010-12-15 | ブラザー工業株式会社 | Inkjet printer |
| JP4769573B2 (en) * | 2004-12-28 | 2011-09-07 | キヤノン株式会社 | Inkjet recording device |
| JP4844413B2 (en) * | 2007-01-31 | 2011-12-28 | セイコーエプソン株式会社 | Fluid ejection device |
| JP4305529B2 (en) * | 2007-03-01 | 2009-07-29 | ブラザー工業株式会社 | Inkjet recording device |
| JP5282697B2 (en) * | 2009-07-31 | 2013-09-04 | ブラザー工業株式会社 | Liquid ejection device |
| JP5471468B2 (en) * | 2010-01-13 | 2014-04-16 | セイコーエプソン株式会社 | Liquid ejector |
| JP5504916B2 (en) * | 2010-01-26 | 2014-05-28 | 株式会社リコー | Droplet discharge apparatus and image forming apparatus |
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2011
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1707372A2 (en) * | 2005-03-29 | 2006-10-04 | Seiko Epson Corporation | Head capping device and liquid ejecting apparatus incorporating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5778532B2 (en) | 2015-09-16 |
| JP2013056521A (en) | 2013-03-28 |
| CN102991127A (en) | 2013-03-27 |
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