CN1403290A - Ink cartridge with negative pressure regulating mechanism - Google Patents
Ink cartridge with negative pressure regulating mechanism Download PDFInfo
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- CN1403290A CN1403290A CN 01131314 CN01131314A CN1403290A CN 1403290 A CN1403290 A CN 1403290A CN 01131314 CN01131314 CN 01131314 CN 01131314 A CN01131314 A CN 01131314A CN 1403290 A CN1403290 A CN 1403290A
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Abstract
The ink container with negative pressure regulating mechanism includes the first ink supplying chamber, the second ink supplying chamber and the negative pressure regulating mechanism, and the negative pressure regulating mechansm comprising damper unit and piston link unit is set between the first ink supplying chamber and the second ink supplying chamber and serves as the valve between the first ink supplying chamber and the second ink supplying chamber. During the second ink supplying chamber is used to supply ink, its decreased pressure makes the regulating mechanism shift to communicate the two ink supplying chambers, so that ink is made up to the second ink supplying chamber.
Description
Technical field
The present invention relates to a kind of print cartridge, more particularly, relate to a kind of print cartridge that between the first ink supply chamber and the second ink supply chamber, is provided with negative pressure regulating mechanism.
Background technology
In information blast and widely used epoch of computer system, not only the frequency of utilization of computer itself roll up, and its quality and processing speed also are subjected to the requirement of strictness simultaneously.Yet what press for more is, the auxiliary equipment of mating mutually with computer also is subjected to the influence of this trend, and auxiliary equipment not only miscellaneous is weeded out the old and bring forth the new one after another, and the requirement of function and quality also day by day increases.In all common computer auxiliary equipment, the most general, modal is printer, and printer has become the requisite auxiliary equipment of all computer users.
The change evolution history of printer is seen from the market, and being used for classifying according to general making to be divided into three kinds: early stage dot-matrix printer, ink-jet printer afterwards and last laser printer.Wherein, though the dot-matrix printer low price, its print speed is slow, print quality is not good, so that can't compete mutually on market with ink-jet, laser printer.Use ink-jet printer and laser printer now on the market mostly, these two kinds of printers respectively have quality under comparing, be hard to tell which is better: one, and ink-jet printer is cheap, and laser seal printer price is high, and this is the shared advantage part of ink-jet printer; Its two, the print quality of ink-jet printer is lower, and the print quality of laser printer is higher, this is the shared advantage part of laser printer.
Because the relative laser printer of ink-jet printer, it accounts for and the advantage that price is arranged, but its print quality is relatively poor relatively, often makes it lose competitiveness gradually on the occasion of requirement for height print quality.In general, not only ink-jet printer has the disadvantage of ink diffusion, and because it adopts fluid as printed material, many natural flaws that fluid itself is had also become the not good reason of print quality simultaneously, for example, flow morphology can not stationarity (nonrigid body), the having some setbacks property, the fluid that flow contain reasons such as the too small and flow direction control of the coefficient of viscosity of bubble, fluid is difficult for and all can impact print quality.
The print cartridge of ink-jet printer is that ink directly is filled in its inside the earliest, promptly only holds a kind of material of ink in the vessel space of print cartridge, and does not have other materials.Afterwards, because this technology has almost completely exposed the shortcoming of above-mentioned ink-jet printer, the wayward property of fluid (Uncontrollable) drawback of deriving out just.Though afterwards at this shortcoming, new design constantly occurs, improves, yet can't get rid of the pattern that fluid is difficult to control this non-human act fully, below the simple structure that will have print cartridge now elaborate:
One, known technology ()
As previously mentioned, the print cartridge of ink-jet printer is directly ink to be poured into, is filled in its inner space the earliest, as shown in Figure 1, shown in Fig. 1 is the structural representation of a simple and easy print cartridge, wherein N represents ink gun, just from then on ink sprays, and S1 represents this print cartridge in order to hold the space of ink, just is used for the place of filling ink.
The print cartridge features simple structure of this known technology, with low cost, however this kind technology but all comes out the shortcoming of above-mentioned fluid.The print cartridge of this structure is because its ink gun is positioned at the below, thereby can only (being exactly the ink gun place) offer ink supply aperture below print cartridge, utilize gravity to make ink toward dirty, thereby the ink of print cartridge the inside just has the trend of downward leakage.On this structure, want to prevent that ink from flowing out downwards, can only rely on " surface tension " of ink, reach dynamic balance at the surface tension and the hydraulic pressure at ink gun place, could stop ink to leak outside by ink.
Yet, the surface tension of liquid is all little, therefore want to bear the hydraulic pressure of ink at the ink gun place by means of surface tension, certainly will be designed factors such as the weight of the coefficient of viscosity of depth, diameter and the ink of jet orifice, surface tension, excess ink and height, select used parameter by the calculating of precision, so that to reach optimum degree.
But, because the surface tension all too of liquid is little, it is very little in the result for other factors of the influence power in the equilibrium equation formula, cause above-mentioned any one factor to change, all might break dynamic balance, cause the surface tension of liquid to hold the situation of can't stand hydraulic pressure and causing ink to leak outside.Under this particular case, might the influence power balance factor in the process that ink constantly uses, all needs the in addition design and the control of precision, yet the factor that influences its variation quite a lot and be difficult to control, for example, ink causes hydraulic pressure in constantly using, temperature, the ink constituent and the coefficient of viscosity that is subjected to the solution impurity effect, surface tension, all factors such as air pressure in the print cartridge and local atmospheric pressure not only are difficult to control, and the influence power in the equilibrium equation formula is much larger than the influence of surface tension of liquid, the slight variations of any one factor all can be broken the equilibrium equation formula easily, the accurate fluid machinery control technology of this kind not only spends height, and is difficult for reaching.
Two, known technology (two)
As shown in Figure 2, (one) is improved to known technology, the material S2 (as sponge) of the tool absorption affinity of packing in the structure space of print cartridge.This improved print cartridge, with respect to known technology () though for can the disappearance that ink leaks outside be remedied, yet can take place to use up the disadvantage that all are filled in its internal ink fully.
As shown in Figure 2, after filling sponge in the print cartridge,, can tightly be adsorbed on ink in the print cartridge and prevent that ink is to leaking outside, to alleviate surface tension burden in this regard because sponge has powerful absorption affinity.Therefore, in the equilibrium equation formula, prevent that power that ink leaks outside from not having only the surface tension of ink, also increased the absorption affinity of sponge, and the progression (degree) of the absorption affinity of sponge on calculating is greater than the surface tension of ink, therefore, at known technology () even in manyly be enough to influence the unmanageable again factor of balance relatively large variation arranged, also destructive power balance easily not.In the case, provide absorption affinity that the ink in the print cartridge can not leaked outside easily by sponge, thereby can exempt the generation of ink leak situation.
Yet, because therefore finite capacity in the print cartridge behind filling sponge, can pour into the space of ink and promptly reduce.Furtherly,, therefore when ink is about to use up, have the part ink to be retained in the print cartridge, cause the problem of wasted ink owing to the absorption affinity that its gravity can't overcome sponge because absorbent materials such as sponge have absorption affinity.For example, originally can fill the space of 40 gram inks, after the sponge of packing into, occupied segment space, thereby can only fill 30 the gram about ink, but this 30 gram ink is again owing to the absorption affinity of sponge has about 6～7 grams and can't use, therefore originally can utilize the ink of 40 grams in theory, in fact real having only about 23～24 grams of utilizing, comparatively unfortunate in the utilization of space and ink.
In addition, it also is the deficiency of present technique that ink supply has some setbacks, because sponge not only has absorption affinity, and because its institutional framework is loose, even if not only the ink air also can be adsorbed.Therefore, sponge in the print cartridge ink supply simultaneously, portion is residual within it a size bubble, if bubble can't be discharged smoothly, then when printing, run into bubble and just can cause ink feed to have some setbacks, and cause printing interrupt or print colors deep mixed, cause print quality to reduce at last.
At last, this technology is wanted sponge is placed in the print cartridge, and sponge and ink characteristics are closely bound up, thereby causes its complex manufacturing process, and quality is wayward, and then causes the production technology difficulty, and expense significantly promotes.
Though present technique can be improved the disappearance that ink leaks outside, yet owing to can't make full use of the space of print cartridge and the ink of all fillings, print quality reduction and complex manufacturing process etc. become the maximum disadvantage of technology for this reason.
Three, known technology (three)
Known technology (one) though can make full use of the space of print cartridge and the ink of being filled, yet have the shortcoming of ink leak; Known technology (two) can't make full use of the space of print cartridge and the ink of being filled though there is not the shortcoming of ink leak, and therefore, respectively there are pros and cons in both.This technology is to improve the disappearance of aforementioned known techniques () and (two), forms in conjunction with both technology, obtains equalization points in above-mentioned both centres.
As shown in Figure 3, present technique is that the space in the print cartridge is divided into S31 and S32 two parts, wherein, S31 partly adopts known technology (one's) pattern, S32 adopts the pattern of known technology (two), that is to say, the space of S31 only is used for filling ink, absorbent materials such as sponge then except ink, have also been loaded in the space of S32.
S31 only is used for filling ink, and do not insert the result of sponge, it is the advantage that has captured known technology (), the forgone shortcoming of known technology (two), simultaneously, it directly is not connected with ink gun N on locations of structures, and the shortcoming of further forgone known technology () has captured the advantage of known technology (two).In other words, because S31 filling sponge not then can reach the advantage that makes full use of the space and be filled in its internal ink.In addition, because the space of S31 directly is not connected with ink gun N, the shortcoming that ink leaks outside can not take place yet.
And S32 within it portion except ink is arranged, also be filled with sponge, and its locations of structures directly is connected with ink gun N, thus it has captured the advantage of known technology (two), the shortcoming of forgone known technology ().In other words, S32 is owing to be filled with sponge, and its locations of structures directly is connected with ink gun N, thereby can avoid ink to leak outside.
This technology combines the advantage of above-mentioned two known technologies, obtains an equalization point therein, yet takes the print cartridge of this structure to have deficiency certainly.Promptly in order to avoid ink to leak outside, the loading of sponge more or less and can not have fully, as long as but there is sponge to exist, be certain to take place can't utilize fully in the known technology (two) the print cartridge space and be filled in its inner ink.For the situation of avoiding ink to leak outside takes place, the fill area of sponge must be connected with ink gun N in addition, also because so, make that the bubble in the sponge can cause ink supply to have some setbacks, has tenderly white line phenomenon to produce, thereby reduces print quality.
Above-mentioned three known technologies also have the common drawback that can't overcome except having the disappearance that has illustrated.Because print cartridge is in the process that ink is used up gradually, because ink consumes gradually, the ink water level reduces gradually, the upper end of print cartridge is slot milling gradually also, if this space remains a vacuum section (control mass system), then under the result that gas (air) can't replenish, according to the equation for ideal gases formula:
PV＝nRT (1)
P wherein: pressure
V: volume
N: number of moles of gas
R: gas constant
T: temperature
Gas total mole number (n), gas constant (R) all are maintained fixed with temperature (T) at this moment, and among the process that ink uses gradually, the volume (V) of vacuum section (control mass system) can become big gradually, according to above equation (1), this moment, the pressure (P) of gas can diminish gradually.
By above-mentioned inference as can be known, in the process that ink is used up gradually, the gas pressure of print cartridge superjacent air space can diminish gradually, in other words, former pressure in should the space is just less than an atmospheric pressure (negative pressure), because the pressure in space diminishes gradually, cause this space increasing with the pressure differential of extraneous (atmospheric pressure).In the equilibrium equation formula, this pressure differential (ambient pressure is greater than internal pressure) can stop ink to flow out downwards, and in other words, this pressure differential is big more, and is bigger to the suction of ink, and ink more is difficult for flowing out.
Because ink-jet printer has the disadvantage of ink leak, therefore by the suction of ambient pressure greater than the internal pressure generation, can increase the strength that stops ink to leak outside, if add (promptly keeping control mass) yet the print cartridge superjacent air space never has gas, then this space and the more and more big result of ambient pressure difference, can cause ink to flow out fully, cause print cartridge to use.
Therefore, it is indispensable that the print cartridge superjacent air space is carried out gas make-up, yet in order not make the pressure in this space increase to identical with ambient pressure, make its inside keep negative pressure always, so must be provided with resistance in the time of will entering into this space for ambient atmos, and this resistance equals ambient pressure just and this space pressure is poor.For example, known technology (three) offers an aperture H31 in the upper end of print cartridge space S 32, by means of this aperture H31 outside air is entered in the S32, again by H32 and S31, arrive S33 to increase its pressure, this moment ink and the sponge among the S32, and the ink among the S31 all becomes the resistance of keeping between the required external and internal pressure difference of designer.
Yet poor to keep the required external and internal pressure of designer for keeping this resistance, gas enters into the velocity variations of print cartridge from the external world just can not be too fast.Thus, when print job increases, interior at one time a large amount of consumption of ink, this moment, print cartridge ink inside water level descended fast, in this case, because the cause that ink consumes rapidly, the inner space increases sharply simultaneously, under the prerequisite that pressure and volume are inversely proportional to, internal pressure reduces rapidly simultaneously.At this time, because air enters print cartridge to drag effect, make outside air can't add to its inside rapidly, and reduce pressure rapidly, at this time the external and internal pressure difference just can be strengthened to enough strength to stop the ink outflow or its outflow is had some setbacks, thereby cause printing interruption or marking ink concentration not enough, and then cause print quality to descend.
From the above, all at present print cartridges are not the shortcomings with ink leak, can not make full use of the deficiency of the ink of filling in print cartridge space and its inside exactly, or interrupt and reduction print quality problem because of ink supply has some setbacks to cause printing.Also have, for keeping the required external and internal pressure of designer poor, and when gas enters print cartridge, be provided with resistance, though that this method can effectively be kept the required external and internal pressure of designer is poor, yet make the additional speed of gas become slow, cause when a large amount of the printing, ink consumes in a large number, and the external and internal pressure difference increases sharply at one time, and the gas that slowly replenishes can't replenish pressure inside, cause ink to be difficult for flowing out, reduce print quality.
Above-mentioned known technology all has disadvantage, needs further print cartridge generation, so that substitute the print cartridge in the known technology, strengthens its market competitiveness.
Summary of the invention
For this reason, the print cartridge among the present invention mainly is can't solve ink leak and print cartridge space and the not high problem of ink utilization rate in order to solve above-mentioned print cartridge.
The print cartridge that has negative pressure regulating mechanism among the present invention mainly is made of the first ink supply chamber, the second ink supply chamber and governor motion.Wherein, the second ink supply chamber is formed with an ink supply port that communicates with outside air, and is ink outlet by means of this ink supply port; Governor motion is located in the passage of the second ink supply chamber, and the one side communicates with atmosphere, and this governor motion is as the valve between the first ink supply chamber and the second ink supply chamber.This governor motion is made of a piston and a damping unit, make piston to the second ink supply indoor slippage by means of the reduction of pressing in the second ink supply chamber is in the ink supply process, and between the first ink supply chamber and the second ink supply chamber, be provided with a runner on the piston, by means of the runner conducting first ink supply chamber and the second ink supply chamber, it is indoor to make the indoor ink of first ink supply flow into second ink supply via runner when the inside slippage of piston.
The print cartridge that has negative pressure regulating mechanism among the present invention is after the second ink supply chamber replenishes ink, its internal pressure is increased, simultaneously piston is passed laterally, and after the ink supply port ink-jet, produced the low situation of internal drop once more, once again piston is inwardly passed, made the runner conducting.The situation that above-mentioned piston moves not is remarkable, only for sliding a little, the first ink supply chamber and the second ink supply chamber are remained between conducting state and the critical conduction mode, by means of the resistance of atmospheric pressure, damping unit and the trend of the second ink supply chamber negative pressure three desire maintenance balance, make the second ink supply chamber maintain a stable ink supply negative pressure.
The institute that the print cartridge that has negative pressure regulating mechanism among the present invention has improved aforementioned known techniques possesses a drawback, and has improved the print quality of ink-jet printer.
Description of drawings
Described in detail below in conjunction with the plurality of advantages and the feature of accompanying drawing the print cartridge that has negative pressure regulating mechanism among the present invention.
Fig. 1 is known print cartridge (one's) a structural representation;
Fig. 2 is known print cartridge (twos') a structural representation;
Fig. 3 is known print cartridge (threes') a structural representation;
Fig. 4 is the structural representation of the embodiment one of print cartridge among the present invention;
Fig. 5 is the structural representation of the embodiment two of print cartridge among the present invention;
Fig. 6 is the structural representation of the embodiment three of print cartridge among the present invention;
Fig. 7 is the structural representation of the embodiment four of print cartridge among the present invention;
Fig. 8 is the structural representation of the embodiment five of print cartridge among the present invention;
Fig. 9 is the structural representation of the embodiment six of print cartridge among the present invention;
Figure 10 is the structural representation of the embodiment eight of print cartridge among the present invention;
Figure 12 is the structural representation of the embodiment seven of print cartridge among the present invention;
Figure 11 is the structural representation of the embodiment nine of print cartridge among the present invention.
The specific embodiment
As shown in Figure 4, the print cartridge among the present invention 1 mainly is made of the first ink supply chamber 11, the second ink supply chamber 12 and negative pressure regulating mechanism 13.Wherein, be provided with a pore 110 on the top of the first ink supply chamber 11, making the pressure in the ink supply chamber 11 of winning is an atmospheric pressure (1atm); Be provided with an ink supply port 121 in the bottom of the second ink supply chamber 12,, and form a passage that communicates with outside air as the outlet of print cartridge 1 ink; Negative pressure regulating mechanism 13 is arranged in the passage of 12 inside, the second ink supply chamber, and a side of this passage communicates with atmosphere, and forms an open space.This governor motion 13 is as valve between the first ink supply chamber 11 and the second ink supply chamber 12, and when print cartridge 1 was not opened use, governor motion 13 was in the position shown in Fig. 4.
Governor motion 13 is linkages that are made of piston 131 and damping unit 132, low by means of the internal drop in the ink supply process of the second ink supply chamber 12, make piston 131 to the 12 inboard slippages of the second ink supply chamber, this piston 131 portion within it is provided with a runner 133, when the inside slippage of piston 131 by means of runner 133 conductings, the first ink supply chamber 11 and the second ink supply chamber 12, and come the displacement of abuts against plunger 131 by means of stopper 134, can't be communicated with the first ink supply chamber 11 and the second ink supply chamber 12 to prevent piston 131 and runner 133 because of too much going deep into the second ink supply chamber 12.Utilize governor motion 13 that print cartridge 1 can stably be flowed into the ink in the first ink supply chamber 11 in the second ink supply chamber 12 via runner 133 in the ink supply process, this moment, piston 131 was handled position shown in dotted lines in Figure 4 with runner 133.
The second ink supply chamber 12 of print cartridge 1 is after obtaining the ink that enters from runner 133 among the present invention, and its internal pressure increases, and simultaneously piston 131 is passed laterally, and this moment, runner 133 was closed, and cut off the ink supply process of the first ink supply chamber 11.Thereafter, after ink supply port 121 ink-jets, produce the low situation of internal drop once more, and once again piston 131 is inwardly passed, runner 133 conductings, the first ink supply chamber 11 and the second ink supply chamber 12, because the amount of movement of aforementioned piston 131 is little, only some slides a little, win ink supply chamber 11 and the second ink supply chamber 12 are often remained between conducting state and the critical conduction mode, and keep the trend of balance by means of the resistance of atmospheric pressure, damping unit, frictional force and the second ink supply chamber negative pressure desire, in the second ink supply chamber 12, can keep the negative pressure of a stable ink supply.
Again as shown in Figure 4, the damping unit 132 in the present invention's first specific embodiment is a tension spring, and an end of this tension spring is fixed on the inwall of print cartridge, and the other end is fixed on the piston 131.During to 12 slippages of the second ink supply chamber, stretcher strain takes place owing to being subjected to pulling force in tension spring at piston 131, pulling force is provided for piston 131 by means of the elastic-restoring force of this tension spring.In the second ink supply chamber 12 as yet not under the ink-jet state, the gas volume V in the second ink supply chamber 12
1Be a confined space, pressure is P
1, along with the minimizing of quantity of ink after the ink-jet makes this gas volume become greatly V
2, atmospheric pressure value drops to P
2, in order to satisfy the bohr law, available following equation is represented:
P
1V
1＝P
2V
2
Form pressure differential this moment in print cartridge 1 inside and outside, thereby make piston 131 inside slippages, by means of runner 133 conductings, the first ink supply chamber 11 and the second ink supply chamber 12, and, the ink in the first ink supply chamber 11 is flow in the second ink supply chamber 12 via runner 133 by means of stopper 134 abuts against plunger 131.At this moment, the first ink supply chamber 11 and the second ink supply chamber 12 remain between conducting state and the critical conduction mode, trend by means of desire maintenance balance between pulling force, frictional force and the second ink supply chamber negative pressure of atmospheric pressure, tension spring keeps stable negative pressure in the second ink supply chamber 12.
As shown in Figure 5, the control agent structure 13 in the present invention's second specific embodiment is a piston 131 of being made by elastomeric material such as rubber, and stopper 134 is an inclined-plane limited slip block, and the passage of the second ink supply chamber 12 is dwindled gradually.In the ink supply process of the second ink supply chamber 12, it is poor to form external and internal pressure owing to internal drop is low, thereby make of the inboard slippage of elastic caoutchouc piston to the second ink supply chamber 12, by means of runner 133 conductings, the first ink supply chamber 11 and the second ink supply chamber 12, ink in the first ink supply chamber 11 is flow in the second ink supply chamber 12 via runner 133, at this moment, elastic caoutchouc piston 131 and runner 133 present the position shown in Fig. 5 dotted line.This print cartridge 1 is suffered distortion and the elastic-restoring force that produces during by means of elastic caoutchouc piston 131 contact stoppers 134, replace the pulling force that tension spring produces in the specific embodiment one, the first ink supply chamber 11 and the second ink supply chamber 12 are often remained between conducting state and the critical conduction mode, and keep the trend of balance, stable ink supply negative pressure of maintenance the second ink supply chamber 12 in by means of the elastic-restoring force of atmospheric pressure, elastic caoutchouc piston, frictional force and the second ink supply chamber negative pressure desire.
As Fig. 6 and shown in Figure 4, the concrete enforcement three of the present invention is that the tension spring among the embodiment one is replaced by thrust spring, at piston 131 during to the 12 inboard slippages of the second ink supply chamber, thrust spring produces compression owing to being under pressure, and utilizes the elastic-restoring force of this thrust spring to provide thrust to piston 131.In the ink supply process of print cartridge 1, the first ink supply chamber 11 and the second ink supply chamber 12 often remain between conducting state and the critical conduction mode, keep the trend of balance, stable ink supply negative pressure of maintenance the second ink supply chamber 12 in by means of the thrust of atmospheric pressure, thrust spring, frictional force and the second ink supply chamber negative pressure desire.
As Fig. 7 and shown in Figure 4, the specific embodiment four of print cartridge 1 is to change the damping unit among the embodiment one 132 into a tension spring and the fixing airtight airbag 135 of an end among the present invention, this tension spring and airtight airbag 135 are arranged in the second ink supply chamber 12, this embodiment is that the open space of implementing governor motion 13 sides in seals, and this space is communicated with the second ink supply chamber 12, atmospheric pressure is replaced by the pressure in the airtight airbag 135.In the second ink supply chamber 12 as yet not under the ink-jet state, the gas volume V in the airbag 135
3Be a confined space, pressure is P
3, the quantity of ink that carries out the ink-jet second ink supply chamber 12 along with inkjet mouth 121 reduces, and makes the volume of airbag 135 become greatly V
4, atmospheric pressure value drops to P
4, in order to satisfy the bohr law, available following equation is represented
P
3V
3＝P
4V
4
In the ink supply process of print cartridge 1, because the expansion of airbag 135 increases its expansive force gradually, and then promotion piston 131 displacements, tension spring is stretched, pulling force is cumulative, and the second ink supply chamber 12 makes pressure increase in it owing to replenished the ink of the first ink supply chamber 11, the first ink supply chamber 11 and the second ink supply chamber 12 are often remained between conducting state and the critical conduction mode, and keep the trend of balance by means of pulling force, frictional force and the second ink supply chamber negative pressure desire of the expansive force of airbag 135, tension spring, in the second ink supply chamber 12, maintain stable negative pressure.
As Fig. 8 and shown in Figure 5, the specific embodiment five of print cartridge 1 among the present invention, be that side open space with the second specific embodiment governor motion 13 among the present invention seals, this space be communicated with the second ink supply chamber 12, and atmospheric pressure is replaced by an airtight airbag 135.In the ink supply process of print cartridge 1, the first ink supply chamber 11 and the second ink supply chamber 12 often remain between conducting state and the critical conduction mode, and keep the trend of balance by means of elastic-restoring force, frictional force and the second ink supply chamber negative pressure desire of the expansive force of airtight airbag 135, elastic caoutchouc piston, in the second ink supply chamber 12, maintain stable negative pressure.
As Fig. 9 and shown in Figure 6, the specific embodiment six of print cartridge 1 among the present invention is with the open space sealing of the 3rd specific embodiment governor motion 13 sides among the present invention, and this space is communicated with the second ink supply chamber 12, and atmospheric pressure is replaced by an airtight airbag 135.In the ink supply process of print cartridge 1, the first ink supply chamber 11 and the second ink supply chamber 12 often remain between conducting state and the critical conduction mode, and keep the trend of balance, the stable negative pressure of maintenance the second ink supply chamber 12 in by means of thrust, frictional force and the second ink supply chamber negative pressure desire of the expansive force of airtight airbag 135, thrust spring.
As Figure 10 and shown in Figure 7, the specific embodiment seven of print cartridge 1 of the present invention, governor motion 13 are an elastic caoutchouc piston, the one end is a stiff end, the other end is the stretching end that can freely stretch, and when print cartridge 1 was opened use as yet, the elastic caoutchouc piston was in state as shown in figure 10.By means of the reduction of pressing in the second ink supply chamber 12 is in the ink supply process, make the free end of elastic caoutchouc piston be subjected to the pulling force traction and stretch, and to the second ink supply chamber, 12 inboard extensions, and this elastic caoutchouc piston is provided with a runner 133, when the inside slippage of piston by means of runner 133 conductings, the first ink supply chamber 11 and the second ink supply chamber 12, abutment action via stopper 134, the ink of the first ink supply chamber 11 is flow in the second ink supply chamber 12 via runner 133, and this moment, piston and runner 133 were in position as shown in phantom in Figure 10.
As shown in figure 11, the specific embodiment eight of print cartridge 1 among the present invention, governor motion 13 are an elastic caoutchouc piston, its right-hand member is a stiff end, left end is compressible free end, and when print cartridge 1 was opened use as yet, the elastic caoutchouc piston was handled state shown in solid line among Figure 11.By means of interior reduction of pressing in the ink supply process in the second ink supply chamber 12, elastic caoutchouc piston both sides pressure is not waited, further make elastic caoutchouc piston left side pressure produce compression to the right greatly, and to the second ink supply chamber, 12 medial movement, and this piston is provided with a runner 133, when piston contracts to the right via runner 133 conductings, the first ink supply chamber 11 and the second ink supply chamber 12, the first ink supply chamber, 11 interior inks are flow in the second ink supply chamber 12 via runner 133, and this moment, piston and runner 133 presented position as shown in phantom in Figure 11.Suck in the process of inks in the second ink supply chamber 12, increase, provide elastic-restoring force, make piston get back to original position shown in solid line among Figure 11, or return back to approximate this state and stop ink supply to piston owing to press gradually in it.
In the present invention the 7th, the 8th embodiment, the preferred materials of described piston is a foam.In the 8th embodiment, the right side of foam might not be fixed, and can further be provided with a stopper 134, makes distance between itself and print cartridge 1 right side wall equal foam and is not subjected to external force to make the length of time spent.By means of interior reduction of pressing in the 12 ink supply processes of the second ink supply chamber, make the pressure of the pressure in foam left side greater than the right side, and generation compression to the right, and in the second ink supply chamber 12, contract, again since this piston be provided with a runner 133, when piston contracts to the right by means of runner 133 conductings, the first ink supply chamber 11 and the second ink supply chamber 12.Mend in the process of ink in the second ink supply chamber 12, provide restoring force, make its answer of expanding left, and lean on, prevent that by means of stopper 134 retainings foam from expanding, slippage left again to foam.
As shown in figure 12, the 9th embodiment among the present invention is provided with a runner 137 between the first ink supply chamber and the second ink supply chamber 12, and governor motion 13 is arranged in the second ink supply chamber 12, and it includes an airtight airbag 135 and a L type connecting rod 136.Wherein, an end of L type connecting rod 136 is fixing for articulating, and the other end is a free end free to rotate; Airtight airbag 135 be arranged on 136 on L type connecting rod around the zone in.When print cartridge 1 is opened use as yet, the position that airbag 135 and L type connecting rod 136 are in shown in solid line among Figure 12, and with runner 137 sealings.Owing to the reduction of pressing in the second ink supply chamber 12 is in the ink supply process, airbag 135 is expanded, further making connecting rod 136 is that the center rotates with the axle, sealing place of runner 137 is opened, by means of runner 137 conductings, the first ink supply chamber 11 and the second ink supply chamber 12, ink in the first ink supply chamber 11 is flow in the second ink supply chamber 12, the positions that this moment, airbag 135 and connecting rod 136 were handled as shown in phantom in Figure 12 via runner 137.After the second ink supply chamber 12 replenished an amount of ink, the interior pressure of the second ink supply chamber 12 increased, and makes the volume compression of airbag 135, thereby makes fast bar 136 be returned to closed condition again.
In sum, the print cartridge 1 among the present invention portion is not within it inserted absorbent materials such as sponge, therefore can make full use of the print cartridge volume inside, to increase the use amount of quantity of ink and ink.In addition, in the ink supply process of ink, especially when a large amount of the printing, the print cartridge pressure inside reduces rapidly, cause the external and internal pressure difference excessive, make ink be subjected to strong suction and difficult the outflow, print cartridge among the present invention can promote the liquid level of the second ink supply chamber by governor motion, increase the internal pressure (gas pressure and ink hydraulic pressure all increase) of the second ink supply chamber, thereby reach balance rapidly, the external and internal pressure that keeps print cartridge is eliminated ink supply and is had some setbacks, reaches simultaneously the function that improves print quality.
Claims (21)
1. a print cartridge has the first ink supply chamber and the second ink supply chamber that are interconnected, and it is characterized in that: the described second ink supply chamber is provided with a passage that communicates with extraneous air, and is provided with negative pressure regulating mechanism in this passage, and this negative pressure regulating mechanism includes:
The piston that can seal the second ink supply chamber, this piston is positioned at described passage, utilizes this piston to seal and is communicated with the first ink supply chamber and the second ink supply chamber;
The damping unit that resistance can be provided institute's piston, this damping unit is located at the inside of described passage.
2. a print cartridge has the first ink supply chamber and the second ink supply chamber that are interconnected, and it is characterized in that: described second ink supply chamber portion within it is provided with a passage, and is provided with negative pressure regulating mechanism in this channel interior, and this negative pressure regulating mechanism includes:
One can be sealed and the piston that is communicated with the first ink supply chamber and the second ink supply chamber, and this piston is positioned at described channel interior, and can move in channel interior;
The airtight airbag that expansive force can be provided described piston, this airtight airbag is located at described channel interior;
The damping unit that resistance can be provided to piston, this damping unit is located at described channel interior.
3. according to the print cartridge described in claim 1 or 2, it is characterized in that: it is logical that the described first ink supply chamber is provided with a hole that directly is connected with ambient atmosphere.
4. according to the print cartridge described in claim 1 or 2, it is characterized in that: described piston portion within it is provided with a runner that can be communicated with the first ink supply chamber and the second ink supply chamber.
5. according to the print cartridge described in the claim 4, it is characterized in that: aforementioned damping unit is a spring, and an end of this spring is fixed on the inwall of described print cartridge, and the other end is fixed on the aforementioned piston.
6. according to the print cartridge described in the claim 5, it is characterized in that: on the inwall of aforementioned channels, be provided with a stopper that can stop aforementioned piston at the passage intrinsic displacement.
7. according to the print cartridge described in the claim 4, it is characterized in that: aforementioned damping unit is an inclined-plane limited slip block, and this inclined-plane limited slip block is located at the inwall of aforementioned channels.
8. according to the print cartridge described in the claim 7, it is characterized in that: aforementioned piston is an elastic caoutchouc piston, and this piston can produce strain when contacting the inclined-plane limited slip block in aforementioned channels.
9. print cartridge, have the first ink supply chamber and the second ink supply chamber that are interconnected, it is characterized in that: described second ink supply chamber portion within it is provided with a passage, and in this passage, be provided with the governor motion that to regulate the described second ink supply chamber interior negative pressure, this governor motion includes a piston of being made by elastomeric material, and an end of this piston is installed in the described passage.
10. print cartridge, have the first ink supply chamber and the second ink supply chamber that are interconnected, it is characterized in that: described second ink supply chamber portion within it is provided with a passage that communicates with ambient atmosphere, and in this passage, be provided with the governor motion that to regulate the second ink supply chamber interior negative pressure, this governor motion includes a piston, this piston is made by elastomeric material, and the one end is installed in the aforementioned channels.
11. the print cartridge according to described in claim 9 or 10 is characterized in that: the aforementioned first ink supply chamber is provided with a pore that directly is communicated with outside air.
12. the print cartridge according to described in claim 9 or 10 is characterized in that: aforementioned piston is provided with a runner that can be communicated with the first ink supply chamber and the second ink supply chamber.
13. the print cartridge according to described in the claim 11 is characterized in that: aforementioned piston is provided with a runner that can be communicated with the first ink supply chamber and the second ink supply chamber.
14. the print cartridge according to described in the claim 9 is characterized in that: aforementioned piston is an elastic caoutchouc piston, and this elastic caoutchouc piston is subjected to the effect meeting stretcher strain of the second ink supply chamber negative pressure, just can open aforementioned two ink supply chambers.
15. the print cartridge according to described in the claim 10 is characterized in that: aforementioned piston is an elastic caoutchouc piston, and this elastic caoutchouc piston is subjected to the suction function of the aforementioned second ink supply chamber and compression just can be opened aforementioned two ink supply chambers.
16. the print cartridge according to described in the claim 14 is characterized in that: be provided with a stopper at the aforementioned channels inwall, this stopper can stop the displacement of aforementioned piston in passage.
17. the print cartridge according to described in the claim 15 is characterized in that: be provided with a stopper at the aforementioned channels inwall, this stopper can stop the displacement of aforementioned piston in passage.
18. print cartridge, have the first ink supply chamber and the second ink supply chamber that are interconnected, it is characterized in that: between two ink supply chambers, be provided with a runner, and portion is provided with a governor motion within it, this governor motion includes a connecting rod that articulates with the described second ink supply chamber, and one is arranged on the indoor airtight airbag that can apply expansive force to connecting rod of described second ink supply.
19. the print cartridge according to described in the claim 18 is characterized in that: the aforementioned first ink supply chamber is provided with a pore that directly communicates with ambient atmosphere.
20. the print cartridge according to described in the claim 19 is characterized in that: aforementioned connecting rod is a L type connecting rod, and the one end pivoting is fixed, and the other end can open and close aforementioned runner, and is communicated with two ink supply chambers.
21. the print cartridge according to described in claim 1 or 2 or 9 or 10 or 18 is characterized in that: the aforementioned second ink supply chamber is provided with an ink supply port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01131314 CN1403290A (en) | 2001-09-04 | 2001-09-04 | Ink cartridge with negative pressure regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01131314 CN1403290A (en) | 2001-09-04 | 2001-09-04 | Ink cartridge with negative pressure regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1403290A true CN1403290A (en) | 2003-03-19 |
Family
ID=4670500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01131314 Pending CN1403290A (en) | 2001-09-04 | 2001-09-04 | Ink cartridge with negative pressure regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1403290A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311978C (en) * | 2003-09-22 | 2007-04-25 | 飞赫科技股份有限公司 | Adjuster for negative pressure |
| US7314272B2 (en) | 2004-06-14 | 2008-01-01 | Canon Kabushiki Kaisha | Ink cartridge having one chamber surrounding another chamber |
| CN101954792A (en) * | 2010-08-27 | 2011-01-26 | 陈亿善 | Electromagnetic type negative-voltage stabilization controller for supplying ink for inkjet printer |
| CN102673127A (en) * | 2011-01-31 | 2012-09-19 | 精工爱普生株式会社 | Liquid ejecting apparatus |
-
2001
- 2001-09-04 CN CN 01131314 patent/CN1403290A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311978C (en) * | 2003-09-22 | 2007-04-25 | 飞赫科技股份有限公司 | Adjuster for negative pressure |
| US7314272B2 (en) | 2004-06-14 | 2008-01-01 | Canon Kabushiki Kaisha | Ink cartridge having one chamber surrounding another chamber |
| CN100469581C (en) * | 2004-06-14 | 2009-03-18 | 佳能株式会社 | Ink cartridge |
| CN101954792A (en) * | 2010-08-27 | 2011-01-26 | 陈亿善 | Electromagnetic type negative-voltage stabilization controller for supplying ink for inkjet printer |
| CN102673127A (en) * | 2011-01-31 | 2012-09-19 | 精工爱普生株式会社 | Liquid ejecting apparatus |
| CN102673127B (en) * | 2011-01-31 | 2015-11-25 | 精工爱普生株式会社 | Liquid injection apparatus |
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