CN1727189A - Ink cartridge for ink-jet recording device - Google Patents
Ink cartridge for ink-jet recording device Download PDFInfo
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- CN1727189A CN1727189A CN 200510092148 CN200510092148A CN1727189A CN 1727189 A CN1727189 A CN 1727189A CN 200510092148 CN200510092148 CN 200510092148 CN 200510092148 A CN200510092148 A CN 200510092148A CN 1727189 A CN1727189 A CN 1727189A
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Abstract
An ink box detachably connected with a recording head has a plurality of ink storage cavities 11(including a third ink storage cavity 17) for containing ink with different concentration gradient, and an ink flowing path 18 which communicates the ink storage cavities. The ink flowing path 18 is built into an ink flowing path capable of enabling the ink in a high concentration ink layer formed in the lower area of the ink storage cavities 11 and the ink in a low concentration ink layer b formed in the upper area of the ink storage cavities 11 to flow and join together when the ink is supplied to the recording head.
Description
The application is called dividing an application of " print cartridge and the ink jet recording device that adopts this print cartridge " for the Chinese patent application submitted on May 17th, 2002 number 02130394.0, name.
Technical field
The present invention relates to be used for ink jet recording device that ink is offered the print cartridge of record head and adopts this print cartridge.
Background technology
Ink jet recording device generally includes the record head that is installed on the balladeur train and moves along the chart width direction and is used to conveyer that record-paper is relatively moved along the direction vertical with the direction of motion of record head.
This ink jet recording device prints at recording paper by spraying ink droplet according to print data from record head.
The record head that for example can spray black ink, yellow ink, cyan and magenta ink is installed on the balladeur train, and except carrying out the text printing with black ink, can recently realize colour print by changing ink injection percentage.
Therefore, the main element that is used for equipment that the print cartridge that black ink, yellow ink, cyan and magenta ink offer record head is placed in.
In common ink jet recording device, be used to provide the print cartridge of black ink, yellow ink, cyan and magenta ink to be installed on the balladeur train and and move with this balladeur train.
On the other hand, for example be used for handling official business or commercial recording equipment this, in order to handle big relatively printing amount, the big capacity ink box that stores every kind of ink is not mounted on the balladeur train and is mounted in the main element of equipment.
Also have a kind of like this recording equipment, wherein the primary tank as print cartridge is installed in the equipment body part (cartridge carrier), and on the sub-container print cartridge that record head is installed mounted thereto.Utilize the ink supply pipe ink to be offered sub-container respectively, and further give record head with ink transport from sub-container from primary tank.
In this record head, in order to improve output capacity, need a kind of like this function, promptly when printing at the ink that after sub-container is stably given record head with ink transport, can replenish from primary tank to sub-container.
By the way, current along with improving constantly that the high accuracy print quality is required, for example exist to use and contain the ink of pigment (paint ink) as marking ink.
This paint ink is bigger with the molecular diameter that the ink that contains dyestuff (dye ink) is compared its color material, and pigment is concentrated easily and is accumulated in the bottom of print cartridge (ink storage chamber), therefore occurs easily assembling in the ink in print cartridge distribute (inhomogeneities of concentration).
Therefore, such technical problem occurs, promptly the ink in the print cartridge does not fully mix in use and can not obtain uniform print density and quality.
Therefore the object of the present invention is to provide a kind of print cartridge that can fully mix the ink in the print cartridge in use and therefore can have uniform print density and quality.Another object of the present invention is to provide a kind of ink jet recording device that uses this print cartridge.
Summary of the invention
For this reason, according to the present invention, provide the print cartridge on a kind of record head that removably is connected recording equipment, this print cartridge comprises a plurality of be used to hold the ink storage chamber of the ink that produces concentration gradient and the ink flow paths that the ink storage chamber is communicated with each other.In this print cartridge.Ink flow path is a kind of like this ink flow path, promptly when ink being offered the record head of recording equipment, can make be formed in the ink storage chamber below in the high concentration ink layer in the zone ink and be formed on ink in the low concentration ink layer in the upper zone in the ink storage chamber and flow and combine mutually.
Because print cartridge is to constitute like this, so when ink was offered the record head of recording equipment, the ink in ink in the high concentration ink layer in the ink storage chamber and the low concentration ink layer in the ink storage chamber flowed in ink flow path and combines.
Therefore, ink in the high concentration ink layer and the ink in the low concentration ink layer mix so that offer the record head of recording equipment, thereby can obtain uniform print density and quality.
Here, the ink storage chamber preferably include a plurality of have the record head that can link to each other with the recording equipment record head be connected the last ink storage chamber of ink storage chamber and lead to be in recording equipment record head connection status in the atmosphere of atmosphere open down the ink storage chamber.
Because this print cartridge is to constitute like this, so by making ink flow to the record head that the ink storage chamber offers ink recording equipment from following ink storage chamber.
First connected entrance that this ink flow path is preferably formed as second connected entrance that leads to high concentration ink layer inside and leads to low concentration ink layer inside.
Because print cartridge is to constitute like this, so when ink is offered the recording equipment record head, ink in the high concentration ink layer flows to ink flow path by second connected entrance, ink in the low concentration ink layer flows to ink flow path by first connected entrance, and the ink in the high concentration ink layer and the ink in the low concentration ink layer merge in ink flow path.
In addition, second connected entrance preferably is arranged on bottom position place in the ink storage chamber along gravity direction.
Because print cartridge is to constitute like this, so the ink that is arranged in the bottom position place of ink storage chamber along gravity direction flows to ink flow path by second connected entrance.
In addition, be set at by the ink flowrate a of second connected entrance with by the flow-rate ratio a between the ink flowrate b of first connected entrance: b in 1: 1 to 1: 3 the scope.
Because print cartridge is to constitute like this, so can avoid occurring such situation, promptly the resistance that flows through of second connected entrance is compared too big (flow through resistance ratio and become not enough) with the resistance that flows through of first connected entrance, and the flow that flows through second connected entrance reduces.
In last ink storage chamber, be provided with the next door that has these two connected entrances.
Because print cartridge is to constitute like this, so in last ink storage chamber, when giving the record head of recording equipment with ink transport, ink in the high concentration ink layer flows to ink flow path by second connected entrance, ink in the low concentration ink layer flows to ink flow path by first connected entrance, and the ink in the high concentration ink layer and the ink in the low concentration ink layer merge in ink flow path.
In last ink storage chamber, can also be provided with and be used in the ink supply state, making ink to flow to ink guide channel the storage chamber lower part from the storage chamber upper part.
Because print cartridge is to constitute like this, so in last ink storage chamber, when giving the record head of recording equipment with ink transport, when ink flow to the ink guide channel, this ink flow to the storage chamber upper part from the storage chamber lower part and makes it simultaneously to mix.
On the other hand, according to the present invention, provide a kind of any ink jet recording device that has used in the above-mentioned print cartridge, it comprises the balladeur train that is used to install record head, and this balladeur train can move back and forth between print area and nonprinting region.
According to this structure, when giving the record head of recording equipment with ink transport, ink in the high concentration ink layer in the ink storage chamber and the ink in the low concentration ink layer flow in ink flow path and combine.
Therefore, ink in the high concentration ink layer and the ink in the low concentration ink layer mix so that offer the record head of recording equipment, thereby a kind of ink jet recording device that can have uniform print density and quality can be provided.
Particularly, the present invention proposes a kind of print cartridge that is used for recording equipment, comprises a container, and this container has a plurality of ink chamber adjacent one another are and is used to ink flow path that described ink chamber is communicated with each other, it is characterized in that:
Ink flow path has such ink flow path, thereby makes that the ink in the zone and the ink in one the upper zone in a plurality of ink chamber can flow and combine mutually below in a plurality of ink chamber one.
Also comprise: an ink supply port; A filter that is arranged in upstream side along the ink flow direction with respect to ink supply port; A next door is separated from each other adjacent ink chamber, and along the ink flow direction with respect to filter bits in upstream side; This ink flow path has first and second connected entrances that pass this next door formation, and first and second connected entrances lay respectively at the place, upper and lower position along gravity direction when print cartridge is installed on the recording equipment.
This container have the last ink storage chamber that communicates with each other and by one be communicated with flow ports with described on a following ink storage chamber of of communicating in the ink storage chamber; Wherein this ink chamber is with upward the ink storage chamber is corresponding.
Described container have one go up ink storage chamber and one by one be communicated with flow channel with should on the following ink storage chamber that communicates of ink storage chamber, described next door will play the ink storage chamber to be divided into first and second ink chamber, wherein this connection flow channel opening is located in this first ink chamber, and this second ink chamber communicates with the connection flow channel by this first and second connected entrance and this first ink chamber.
The present invention also proposes a kind of print cartridge that is used for recording equipment, comprising: have the ink chamber adjacent one another are and the container of ink supply port; Be arranged in the filter of upstream side with respect to ink supply port along the ink flow direction; The next door is separated from each other adjacent ink tank, and along the ink flow direction with respect to filter bits in upstream side; Pass first and second connected entrances that the next door forms, they lay respectively at the place, upper and lower position along gravity direction when print cartridge is installed on the recording equipment, and this adjacent ink chamber communicates by first and second connected entrances respectively.
Also propose a kind of print cartridge that is used for recording equipment, comprising: an ink supply port; A chamber that contains paint ink, this chamber are limited by a thin-film member at least in part; A flow channel, this paint ink that contains in chamber flows to this ink supply port via this flow channel; A rigid element, described thin-film member is connected to rigid element, described rigid element has makes described chamber from the separated rigid walls of described flow channel, this rigid walls has one first through hole and one second through hole, first and second through holes pass described rigid walls, and lay respectively at the place, upper and lower position along gravity direction when print cartridge is installed on the recording equipment, each of first and second through holes is as the inlet of paint ink from described chamber to this flow channel.
The present invention also proposes a kind of print cartridge that is used for recording equipment, comprising: an ink supply port; A chamber that contains paint ink; A flow channel is used for being communicated with of chamber and this ink supply port; Individual rigid element, described thin-film member is connected to rigid element, and described rigid element has rigid walls; Wherein this flow channel has first and second connected entrances, first and second connected entrances all pass described rigid walls, so that the ink in the zone can flow and combine mutually with ink in the upper zone in identical described chamber below in described chamber.
Also comprise: described rigid walls is separated chamber and flow channel; When print cartridge was installed on the recording equipment, described first and second connected entrances laid respectively at the place, upper and lower position along gravity direction.。
The present invention relates to the theme that comprised in Japanese patent application Nos.2001-148296 (application on May 17 calendar year 2001) and 2001-205163 (application on July 5 calendar year 2001), these documents here are cited as a reference.
Description of drawings
In the accompanying drawings:
Fig. 1 is the perspective view according to the profile of the basic structure of the ink jet recording device of the embodiment of the invention;
Fig. 2 (a) and 2 (b) are the perspective view according to the outward appearance of the print cartridge of first embodiment of the invention;
Fig. 3 is for seeing the perspective view according to the internal structure of the print cartridge of first embodiment of the invention from the top along incline direction;
Fig. 4 is for seeing the perspective view according to the internal structure of the print cartridge of first embodiment of the invention from below along incline direction;
Fig. 5 is the front view according to the internal structure of the print cartridge of first embodiment of the invention;
Fig. 6 is the rearview according to the internal structure of the print cartridge of first embodiment of the invention;
Fig. 7 is the cutaway view that produces the amplification of system's storage chamber according to the negative pressure of the print cartridge of first embodiment of the invention;
Fig. 8 is the amplification view according to the valve storage chamber of the print cartridge of first embodiment of the invention;
Fig. 9 is the front view according to the connection status of print cartridge on cartridge carrier of first embodiment of the invention;
Figure 10 (a) and 10 (b) are according to the cutaway view of the internal structure of the print cartridge of first embodiment of the invention, are used for illustrating the ink flow path in print cartridge;
Figure 11 is a cutaway view, generally demonstrates the internal structure according to the print cartridge of second embodiment of the invention;
Figure 12 is a cutaway view, generally demonstrates the internal structure according to the print cartridge of third embodiment of the invention;
Figure 13 is a cutaway view, generally demonstrates the internal structure according to the print cartridge of fourth embodiment of the invention.
The specific embodiment
Referring now to accompanying drawing, will the preferred embodiment that print cartridge and use combine the ink jet recording device of print cartridge of the present invention be described.
At first, with reference to Fig. 1 ink jet recording device is described.Fig. 1 is the profile according to the general structure of the ink jet recording device of the embodiment of the invention.
In Fig. 1, can when guiding by means of the synchronous belt 103 that drives by carriage motor 102, the axial direction direction along air roll 105 move back and forth by guiding parts 104 by the balladeur train shown in the label 101.
Guiding parts 104 is supported on two left and right sides respect to one another frameworks 131 and 132.Framework 131 is connected with base plate 134 by back plate 133 with 132.
Ink jet print head 112 is installed on the bottom surface section of balladeur train 101, thereby it is relative with record-paper 106.Be used for ink is offered the black print cartridge 107 of record head 112 and the upper surface portion that colour ink box 108 removably is fixed on balladeur train 101.
Comprise near scraping during ink system 111 is arranged on the print area side of block system 109 of caoutchouc elasticity plate etc., thereby it can move forward and backward along horizontal direction.When print cartridge 101 moves around on block system 109 sides, scrape in the movable passageway that ink system 111 may be advanced to record head 112.
Next, describe with reference to Fig. 2 to 10 pair of print cartridge that uses for above-mentioned ink jet recording device.Fig. 2 (a) and 2 (b) are the perspective view according to the print cartridge outward appearance of first embodiment of the invention.Fig. 3 and 4 along incline direction from the top and below see perspective view according to the internal structure of the print cartridge of first embodiment of the invention.Fig. 5 and 6 is front view and the rearview according to the internal structure of the print cartridge of first embodiment of the invention.Fig. 7 and 8 is the amplification view that produces system's storage chamber and valve storage chamber according to the negative pressure of the print cartridge of first embodiment of the invention.Fig. 9 is the front view according to the connection status of print cartridge on cartridge carrier of first embodiment of the invention.Figure 10 (a) and 10 (b) are according to the cutaway view of the internal structure of the print cartridge of first embodiment of the invention, are used for illustrating the ink flow path in print cartridge.
Have the container body 2 that is almost the flat rectangle in plan view at the print cartridge 1 (the black print cartridge 107 in Fig. 1, colour ink box 108) shown in Fig. 2 (a) and 2 (b), this main body is led to a side and is had and is used for the cap body 3 of opening of airtight container main body 2.
It is not shown that ink supply port 4 has been deposited valve body therein), this valve body opens and closes when the ink supply pin inserts and removes.
As shown in Figure 8, valve storage chamber 8 has the inner space of leading to balladeur train inserting side (downside), thereby can move forward and backward in the inner space at the identification part 73 (demonstrating in Fig. 9) and the valve control stick 70 that match with print cartridge 1 on the recording equipment.The upper part of inner space includes along with valve control stick 70 moves forward and backward and the control arm 66 that rotates, and in the lower part of inner space, be formed be used for determining print cartridge whether with the identification jut 68 of given recording equipment coupling.Identification jut 68 is arranged on such position, thereby (described in the back atmosphere open valve open before) finishes the affirmation of being undertaken by the valve control stick 79 (discerning part 73) by cartridge carrier 71 (demonstrating) in Fig. 9 before making ink supply pin 72 and ink supply port 4 communicates.
As shown in Figure 8, in the chamber wall 8a of valve storage chamber 8, be formed with the through hole 60 of opening the opening and closing operation opening and closing of valve 601 by atmosphere.Control arm 66 is arranged on of through hole 60 and opens on the side, and atmosphere is opened on another open side that valve 601 is arranged on through hole 60.Control arm 66 has the actuating element 66b that is used for pushing pressure-producing part 61, and is arranged to put in the access road of valve operating rod 70 along the direction that is inclined upwardly, and is fixed on the container body 2 by rotating support point 66a.
Pressure-producing part 61 is connected chamber wall 8a and goes up so that close through hole 60, and whole pressure-producing part 61 is formed by elastomeric elements such as rubber.The through hole 67 (these two all are presented among Fig. 5) that communicates with the first ink storage chamber 11 is led in the inner space of opening between the peripheral region that is formed on pressure-producing part 61 and through hole 60.
Atmosphere is opened valve 601 and is had the valve body 65 on the peripheral region opened that constantly is pressed in through hole 60 as shown in Figure 8.This valve body 65 has elastomeric element 62, and its motion makes by jut 64 and regulates, and elastomeric element 62 is fixed on the container body 2 in lower end by jut 63.
Next, will the inner space (inside of print cartridge) of container body 2 be described.The inside of print cartridge mainly is made of ink flow path system and gas channel system, therefore will describe separately ink flow path system and gas channel system.Major part of the present invention relates to the ink flow path with labyrinth, ink in this ink flow path in the high concentration ink layer and the ink in the low concentration ink layer flow and merge (passage that its ink inside flows) in print cartridges, therefore will be elaborated to the ink flow path system separately.To describe ink flow path aspect " ink flow operation " and " structure of ink flow path " below.
[ink flow path system]
[ink flow operation]
When beginning that ink offered record head 112 (shown in Fig. 1 and 9), the ink among the high concentration ink layer a in the first ink storage chamber 11 flows to by connected entrance 18a (shown in Fig. 5) from connected entrance 19a and is communicated with flow channel 18 (flow channel that connects first storage chamber 11 and the second ink storage chamber 16).On the other hand, the ink among the low concentration ink layer b in the first ink storage chamber 11 flows to by connected entrance 18a from connected entrance 19b and is communicated with flow channel 18.Flow to circulation in the flow channel 18 the ink that is arranged in high concentration ink layer a and thereby the ink that is arranged in low concentration ink layer b merges and further move up at circulation flow channel 18 and to flow to the second ink storage chamber 16.
In this case, connected entrance 19a is arranged on identical height and position place with 18a, thereby the ink in the first ink storage chamber 11 is imported into the second ink storage chamber 16 and does not have remaining along connection flow channel 18.
(Figure 11 demonstrates second embodiment, and Figure 12 demonstrates the 3rd embodiment, and Figure 13 demonstrates the 4th embodiment) do not demonstrate connected entrance 18a in Figure 10 to 13.
Next, as by shown in the arrow among Figure 10 (a), merge by means of the ink that connection flow channel 18 flows among the ink of the second ink storage chamber 16 and the high concentration ink layer a the second ink storage chamber 16 from the first ink storage chamber 11, and flow through the connected entrance 15a of vertical wall 15, flow to the 3rd ink storage chamber 17 and flow through the connected entrance 26a in next door 26.As flowing through the connected entrance 27a in next door 27, and in ink flow path 28, further move up, and flow in the filtering chamber 34 by connected entrance 24a by the ink that flows through the connected entrance 26a in next door 26 shown in the arrow among Figure 10 (a).
Afterwards, ink flows through the through hole 25a in next door 25 and flows in the differential pressure control valve storage chamber 33, and when differential pressure control valve (at the film shown in Fig. 7 52) when opening, ink flows through through hole 52c and arrives ink supply ports 4 by groove part 35, as shown in Figure 10 (b).
[structure of ink flow path]
Thereby print cartridge 1 is formed with the inner space by cap body 3 being connected container body 2 and the air shielded film being connected on the afterbody of container body 2.The inner space is divided into top and the bottom by the next door 10 of extending a little under the ink supply port side direction relative with record head 112, as shown in Fig. 3 to 5.The following zone of inner space is provided at the first ink storage chamber 11 that can lead to atmosphere in the state that is connected with record head 112.On the other hand, the upper zone of inner space limits by having the framework 14 of next door 10 as the bottom.Part about the inner space of framework 14 is divided into by the vertical wall 15 with connected entrance 15a.One of them zone that the inner space was divided into forms the second ink storage chamber 16, and another zone forms the 3rd storage chamber 17.
Be connected with the second ink storage chamber 16 with the connection flow channel 18 that first storage chamber 11 communicates.Be communicated with flow channel 18 and have connected entrance 18a and 18b at the upper-lower position place, and by the vertically extending groove part 18c (in Fig. 6, demonstrating) of the afterbody that leads to container body 2 and the shroud of gas film that is used to close with the opening of sealed groove part 18c limit.Next door 19 with the 19a of connected entrance up and down that communicates with the inside of the first ink storage chamber 11 and 19b is arranged on the upstream of circulation flow channel 18.Connected entrance (second connected entrance) 19a is arranged on the position of the inboard of the high concentration ink layer a (shown in Figure 10 (a)) that leads in the following zone that is formed in the first ink storage chamber 11.Connected entrance (first connected entrance) 19b is arranged on the position of the inboard of the low concentration ink layer b (shown in Figure 10 (a)) that leads in the upper zone that is formed in the first ink storage chamber 11.Therefore, form a kind of like this ink flow path (chamber), wherein the ink that flows through connected entrance 19a and 19b from the first ink storage chamber 11 flows to the following connected entrance 18a of connected entrance 18a and 18b.
On the other hand, the 3rd ink storage chamber 17 is formed with the filter chamber 34 (shown in Fig. 5) that is used for depositing the differential pressure control valve storage chamber 33 (shown in Fig. 6) of differential pressure control valve 52 (membrane valve) and is used for depositing filter 55 (demonstrating) in Fig. 7 by the next door 22 and the ring bulkhead 24 of horizontal expansion.Next door 25 is formed with the through hole 25a in ink (pigment) the importing differential pressure control valve storage chamber 33 that is used for will flowing through filter 55 from filter chamber 34.
Through hole 29 is formed by the next door (annular wall) 30 that joins with next door 27.
The zone 31 by next door 24 and 30 and next door 30a (in Fig. 6, demonstrating) form.The zone is located to form deeply and (part that communicates with filtering chamber 34) forms more shallowly in relative end at container body 2 (part that communicates with through hole 29).
As shown in Figure 7, differential pressure control valve storage chamber 33 is being deposited the spring 50 of implementing to become a kind of spiral compression spring and as the membrane valve 52 of differential pressure control valve, this membrane valve 52 can be for example elastomer of elastically deformable and have through hole 52c.Membrane valve 52 has by the 52a of cyclic thick portion and is fixed on zone, outside on the container body 2.Spring 50 is supported by the spring carrier part 52b of membrane valve 52 at place, an end, and is supported by the spring carrier part 53a of cap body 53 at relative place, end.
Thick the framework that 52a is integrally formed of label 54 expressions and membrane valve 52.Label 56 and 57 expressions are arranged on the shroud of gas film on the front and back of container body 2.
As shown in FIG. 7, be used for making ink can by and the filter 55 of capturing dust etc. be arranged on filter chamber 34.The opening of filter chamber 34 and differential pressure control valve storage chamber 33 is by 56 sealings of liquid (ink, gas) shielded film.Therefore, when the pressure in the ink supply port 4 reduced, membrane valve 52 separated with valve seat part 25b under the effect of the motive force of spiral compression spring 50.Therefore, the ink that flows through filter 55 flows through through hole 52c and flows to ink supply port 4 by the flow channel that is formed by groove part 35.When the ink pressure in the ink supply port 4 rose to predetermined value, membrane valve 52 had been sitting on the valve seat part 25b under the effect of the motive force of spiral compression spring 50, thereby cut off China ink stream.Repeat this operation, thereby when keeping constant negative pressure, ink is offered ink supply port 4.
[gas channel system]
As shown in Figure 6, container body 2 is formed on the afterbody, this afterbody has the curved slot 36 that is used for improving the flow channel resistance, leads to the wide groove 37 of atmosphere and see the groove part 38 (space segment) that is almost rectangle in the plane, and this groove part is adjacent with the second ink storage chamber 16 by next door 602.Groove part 38 has framework 39 and rib 40, and breathable films 84 is laid and is fixed in the above, thereby forms the ventilation chamber.Be formed with through hole 41 in the bottom of groove part 38 (wall portion), this through hole communicates with the elongated area 43 that next door 42 (shown in Fig. 5) by the second ink storage chamber 16 is limited.This zone 43 has through hole 44 and opens chamber 501 (shown in Fig. 8) by the communication groove 45 that limited by partition wall 603 and the through hole 46 that leads to communication groove 45 with atmosphere and communicates.
According to this structure, when print cartridge 1 was installed on the cartridge carrier 71 as shown in Figure 9, the control arm 66 shown in valve control stick 70 adjacent maps 8 of cartridge carrier 71 was so that make bossing 66b (pressurization film 61) move to the valve body side.Therefore, valve body 65 separates with the peripheral region of opening of through hole 60, thereby the first ink storage chamber 11 shown in Fig. 5 leads to the groove part 38 (atmosphere) shown in Fig. 6 by through hole 67,60 and 46, groove 45, through hole 44, zone 43, through hole 41 etc.By inserting the valve body (not shown) that ink supply pin 72 is opened in ink supply port 4.
Open and record head 112 when consuming inks (paint ink) when the valve body in the ink supply port 4, the pressure of ink supply port 4 drops to below the regulation numerical value.Therefore, membrane valve 52 in the differential pressure control valve storage chamber 33 shown in Fig. 7 is opened (if the pressure of ink supply port 4 rises to more than the regulation numerical value, then membrane valve 52 cuts out), the ink in the differential pressure control valve storage chamber 33 of last ink storage chamber flows to record head 112 by ink supply port 4.
In addition, along with record head 112 continues to consume ink, promptly play the ink in the ink storage chamber to flow in the second ink storage chamber 16 by the circulation flow channel 18 shown in Fig. 5 at the first ink storage chamber 11.
High concentration ink layer a in the zone (shown in Figure 10 (a)) ink inside flows to connection flow channel 18 (demonstrating) by connected entrance 19a (demonstrating) in Fig. 6 in Fig. 5 below being arranged on the first ink storage chamber 11 in this case, low concentration ink layer b in the upper zone that is arranged on the first ink storage chamber 11 (shown in Figure 10 (a)) ink inside flows to by connected entrance 19b and is communicated with flow channel 18, thereby ink in high concentration ink layer a and the ink in low concentration ink layer b merge in being communicated with flow channel 18.
On the other hand, when consuming ink, air flows to by the through hole 67 (shown in Fig. 5) that communicates with atmosphere, and the ink level in the first ink storage chamber 11 descends.Along with ink further is consumed, this ink level arrives connected entrance 19a, flows to buffer chamber 16 by being communicated with flow channel 18 with air from the ink of the first ink storage chamber 11 (constantly leading to atmosphere by through hole 67 in ink supply).Because bubble moves up under buoyancy function, so have only ink to flow in the 3rd storage chamber 17 by the connected entrance 15a in the lower part of vertical wall 15, flow through the connected entrance 26a of partition wall 26 from the 3rd storage chamber 17, in communication passage 28, move up, and flow to the upper part of filter chamber 34 from communication passage 28 by zone 31 and communication port 24a.
Afterwards, ink in filter chamber 34 flows through the filter 55 shown in Fig. 7, from through hole 25a, flow to differential pressure control valve storage chamber 33, also flow through the through hole 52c of the membrane valve 52 that separates with valve seat part 25b, in the groove part shown in Fig. 6 35, move down and flow in the ink supply port 4 then.
Therefore just from print cartridge, ink is offered record head.
Therefore, in this embodiment, ink in high concentration ink layer a and the ink in low concentration ink layer b mix so that offer record head 112, occur changing thereby can suppress body, and can have uniform print density and quality.
If different types of print cartridge 1 is installed in cartridge carrier 71, then before ink supply port 4 reaches ink supply pin 72 places, discern the identification part 73 (be presented in Fig. 9) of bossing 68 (being presented among Fig. 8), thereby stop entering of valve control stick 70 in abutting connection with cartridge carrier 71.Therefore, can prevent the problem of having laid different types of print cartridge.In this state, valve control stick 70 can not arrive control arm 66 any place and therefore valve body 65 remain in the valve state of closing, thereby prevent that ink solvent in the ink storage chamber 11 is in its time spent evaporation.
On the other hand, if the dismounting of the installation site from cartridge carrier 71 is print cartridge 1 down, then control arm 66 flexibly recovers, because it is no longer supported by control stick 70, and therefore valve body 65 flexibly recovers, thereby close through hole 60, thereby cut off the connection between the groove part 38 and the first ink storage chamber 11.
Ink flow path in this embodiment has been described as a kind of like this ink flow path, wherein ink in high concentration ink layer a and the ink in low concentration ink layer b flow and merging in connection flow channel 18 constantly in ink supply in first ink chamber 11, but the present invention is not limited to this.Ink flow path can make at the sort of (second embodiment) shown in Figure 11 or at the sort of (the 3rd embodiment) shown in Figure 12.In this case, ink in the high concentration ink layer and the ink in the low concentration ink layer can mix several times and the ink compound percentages can increase accordingly with the increase that mixes number of times.
Second embodiment
As shown in Figure 11, in the 3rd ink storage chamber 17, vertical wall 15 is formed with (second) connected entrance 15a that leads to high concentration ink layer a inside and (first) connected entrance 15b (aperture area is approximately three times of connected entrance 15a) that leads to low concentration ink layer b inside.Connected entrance 15a locates along the bottom part that gravity direction is arranged in the second ink storage chamber 16.
Therefore, when ink is offered record head 112, as shown in the arrow among Figure 11, combine with ink among the high concentration ink layer a in the second ink storage chamber 16 and flow through connected entrance 15a thereby from the first ink storage chamber 11, flow to the ink of the second ink storage chamber 16, thereby and combine with ink in low concentration ink layer b and to flow through connected entrance 15b.The ink that flows through connected entrance 15a and 15b (flows thereby the high concentration ink layer merges towards the next door 26 connected entrance 26a below a) in the zone at the 3rd ink storage chamber 17.
In this embodiment, described the situation that flow ratio between ink flowrate a that flows through connected entrance 15a and the ink flowrate b that flows through connected entrance 15b is set to 1: 3 (area of connected entrance 15b is approximately three times of connected entrance 15a area), can be set in 1: 1 to 1: 3 the scope but the present invention is not limited to this and flow rate ratio a: b.In this case, if flow ratio a: b is set in outside 1: 1 to 1: 3 the scope, then the resistance that flows through of connected entrance 15a is compared become too big (flow through resistance ratio and become not enough) in the resistance of connected entrance 15b, and the ink flowrate that flows through connected entrance 15a reduces.
The 3rd embodiment
As shown in Figure 12, in the 3rd ink storage chamber 17, be provided with connected entrance 51a between the next door 24 and 27 and lead to the next door 51 of connected entrance 51b of the inboard of low concentration ink layer b with inboard of leading to high concentration ink layer a.
Therefore, (the high concentration ink layer a ink inside that the high concentration ink layer flows through in a) on the left side of the ink of connected entrance 26a in next door 26 and next door 26 merges so that flow through connected entrance 51a in zone below the 3rd ink storage chamber 17, and with the left side of next door 24 on low concentration ink layer b in ink merge so that flow through connected entrance 51b, as by shown in the arrow among Figure 12.Flow through in the following zone between the ink next door 27 and 51 of connected entrance 51a and 51b and merge to flow to the connected entrance 27a in next door 27.
Therefore, in each of first to the 3rd embodiment, described the next door and be formed with the situation of connected entrance, but the present invention is not limited to this, as shown in Figure 13 ink guide channel 161 (the 4th embodiment) can be set in filtering chamber 34 with mixed ink with mixed ink.
As shown in Figure 13, ink guide channel 161 so forms, and 24 inner circumferential surface extends and lead to the inboard of zone 31 (shown in Fig. 5) and filtering chamber 34 along the next door for it.In filtering chamber 34, when ink is provided, make ink flow to lower part from upper part from zone 31 (connected entrance 24a).
Therefore, when ink is offered record head 112, flow through zone 31 ink and be directed into the lower part of filtering chamber and flow to through hole 25a (through hole of the upper part of filtering chamber, making) along ink guide channel 161 this ink is mixed, as by shown in the arrow among Figure 13 from the lower part of filtering chamber.
As can be seen, according to print cartridge and use ink jet recording device according to print cartridge of the present invention, the ink in print cartridge can fully mix in use, thereby can obtain uniform print density and quality from top specification.
Claims (3)
1. print cartridge that is used for recording equipment comprises:
An ink supply port;
A chamber that contains paint ink, this chamber are limited by a thin-film member at least in part;
A flow channel, this paint ink that contains in chamber flows to this ink supply port via this flow channel;
A rigid element, described thin-film member is connected to rigid element, described rigid element has makes described chamber from the separated rigid walls of described flow channel, this rigid walls has one first through hole and one second through hole, first and second through holes pass described rigid walls, and lay respectively at the place, upper and lower position along gravity direction when print cartridge is installed on the recording equipment, each of first and second through holes is as the inlet of paint ink from described chamber to this flow channel.
2. print cartridge that is used for recording equipment comprises:
An ink supply port;
A chamber that contains paint ink;
A flow channel is used for being communicated with of chamber and this ink supply port;
Individual rigid element, described thin-film member is connected to rigid element, and described rigid element has rigid walls;
Wherein this flow channel has first and second connected entrances, first and second connected entrances all pass described rigid walls, so that the ink in the zone can flow and combine mutually with ink in the upper zone in identical described chamber below in described chamber.
3. print cartridge as claimed in claim 2 is characterized in that, also comprises:
Described rigid walls is separated chamber and flow channel;
When print cartridge was installed on the recording equipment, described first and second connected entrances laid respectively at the place, upper and lower position along gravity direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001148296 | 2001-05-17 | ||
| JP148296/01 | 2001-05-17 | ||
| JP205163/01 | 2001-07-05 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021303940A Division CN1223461C (en) | 2001-05-17 | 2002-05-17 | Ink box and ink-jet recording equipment using the ink box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1727189A true CN1727189A (en) | 2006-02-01 |
Family
ID=35926774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510092148 Pending CN1727189A (en) | 2001-05-17 | 2002-05-17 | Ink cartridge for ink-jet recording device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1727189A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936187A (en) * | 2015-03-03 | 2016-09-14 | 精工爱普生株式会社 | Liquid storing body |
| CN107215101A (en) * | 2016-03-22 | 2017-09-29 | 海德堡印刷机械股份公司 | Equipment for supplying ink in a looping fashion at least one print head |
-
2002
- 2002-05-17 CN CN 200510092148 patent/CN1727189A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936187A (en) * | 2015-03-03 | 2016-09-14 | 精工爱普生株式会社 | Liquid storing body |
| CN107215101A (en) * | 2016-03-22 | 2017-09-29 | 海德堡印刷机械股份公司 | Equipment for supplying ink in a looping fashion at least one print head |
| CN107215101B (en) * | 2016-03-22 | 2020-01-07 | 海德堡印刷机械股份公司 | Device for cyclically supplying at least one printing head with ink |
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