CN1377780A

CN1377780A - Ink cartridge with bubble storage chamber

Info

Publication number: CN1377780A
Application number: CN 01112471
Authority: CN
Inventors: 詹勋县; 陈志清
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2001-04-05
Filing date: 2001-04-05
Publication date: 2002-11-06
Anticipated expiration: 2021-04-05
Also published as: CN1152782C

Abstract

One ink cartridge includes one ink tub to store ink, one ink passage below the ink tub and one ink jet head with several heaters to heat the ink inside the ink jet head so as to produce bubbles to push out ink from the ink jet head. The ink passage has one bubble storage to store bubbles and bubbles formed inside the ink jet head will be floated to shift upwards into the bubbles storage partially or wholly.

Description

Be provided with the ink cartridge of bubble storage chamber

The present invention relates to a kind of ink cartridge, particularly relate to a kind of ink cartridge that is provided with bubble storage chamber.

In general inkjet-printing device, be typically provided with an ink cartridge (ink container), it can move around along a fixation locus, and waits to print inkjet printing on the file one.The primary structure of this ink cartridge is made of a housing, and it contains one and is used for the ink container of storage ink and one and is connected with this ink container and is used for controlling the ink gun of ink ejection.This ink gun includes a plurality of heaters, and heater is used for heating ink to produce bubble.The bubble that heater produced can be pushed the ink in the ink gun, and ink is sprayed from ink gun.After ink ejects, because there is the part bubble shrinkage incomplete, or be dissolved with air because of ink inside, after vibrations or heating, can discharge bubble, or the minute bubbles that produce in the surface roughness of ink chamber and runner, or in inkjet printing, the external world enters the reasons such as minute bubbles of nozzle, and the ink chamber (Ink chamber) of ink gun inside is residual many minute bubbles (Residual bubbles) and make.These minute bubbles flow to ink barrel (Ink pipe) because of buoyancy through runner, and are deposited in filter screen (Filter) surface below of ink barrel.Thus, the ink that these minute bubbles promptly can hinder in the ink container (Reservoir) flow to ink gun, and makes ink can't smooth and easyly be supplied to ink gun.Therefore, along with residual minute bubbles are little by little piled up, print quality will thereby be affected, even can cause and can't ink supply print.

Please refer to Fig. 1, Fig. 1 is the schematic diagram of existing ink cartridge 10.Ink cartridge 10 includes an ink duct 12 and is used for storage ink, and a heater 14 is used for heating ink, and a filter screen 16 is used for filtering the ink from ink duct 12 outputs, and a nozzle 18 is used for from a spray orifice 22 ejection inks.Wherein heater 14 can be pushed out spray orifice 22 to produce bubble with ink by heating ink.After ink ejects, have the part bubble and not exclusively be deposited in filter screen 16 surface below because of shrinking.When the bubble of accumulating when filter screen 16 surface below is too many, will blocks ink channel and influence ink, thereby have influence on the function of ink cartridge 10 inkjet printings from ink duct 12 outputs.

The object of the present invention is to provide a kind of ink cartridge that is provided with bubble storage chamber, when residual bubble produces, residual bubble can be deposited in this bubble storage chamber because of fluid buoyancy, and the running of ink cartridge is affected, have the ink jet type ink cartridge now because of the accumulation gradually of residual minute bubbles to solve, and make the affected problem of print quality.

The object of the present invention is achieved like this, and a kind of ink cartridge (ink container) promptly is provided, and it includes: an ink duct is used for storage ink; One bubble storage chamber is located at the bottom side of this ink duct, is used for storing bubble; One ink gun, it includes a plurality of heaters, is used for the ink in this ink gun is heated to produce a plurality of bubbles, and these a plurality of bubbles can be pushed out ink this ink gun; And an ink channel, be located at the bottom side of ink duct, be used for transmitting ink in this ink duct to this ink gun; Wherein the bubble that this a plurality of heater produced can move in this bubble storage chamber because of buoyancy up moves to make to the small part bubble.

The advantage of apparatus of the present invention is, it is communicated at ink duct on the ink channel of ink gun bubble storage chamber is set, this bubble storage chamber has been contained all or part of area just above of this ink gun, be used for storing the residual bubble that is produced behind this ink gun ejection ink, thus, ink cartridge of the present invention can reduce the situation that residual bubble firmly influences the ink channel obstruction the normal ink supply of ink meeting that takes place.

Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:

Fig. 1 is the schematic diagram of existing ink cartridge;

Fig. 2 is the schematic diagram of first embodiment of the invention ink cartridge;

Fig. 3 prolongs the cutaway view of tangent line 3-3 for Fig. 2 ink cartridge;

Fig. 4 is the enlarged diagram of Fig. 3 ink cartridge bottom;

Fig. 5 is the schematic diagram of second embodiment of the invention ink cartridge;

Fig. 6 prolongs the cutaway view of tangent line 6-6 for Fig. 5 ink cartridge;

Fig. 7 prolongs the cutaway view of tangent line 7-7 for Fig. 5 ink cartridge.

Please refer to Fig. 2 to Fig. 4, Fig. 2 is the schematic diagram of first embodiment of the invention ink cartridge 50, and Fig. 3 is the cutaway view of Fig. 2 ink cartridge 50 along tangent line 3-3, and Fig. 4 is the enlarged diagram of Fig. 3 ink cartridge 50 bottoms.Ink cartridge 50 includes an ink duct 52 and is used for storage ink, and an ink channel 62 is located at the bottom side of ink duct 52.Be provided with a fin 68 in the ink channel 62 and be used for separating ink channel 62 to form an ink barrel 64 and a bubble storage chamber 66, wherein ink barrel 64 is used for receiving the ink that ink duct 52 transmits, bubble storage chamber 66 is used for storing bubble 76, and its preferable volume is greater than 0.2 cubic centimeter.Ink channel 62 comprises a runner 72 in addition, is formed at the bottom side of fin 68, is used for being communicated with ink barrel 64 and bubble storage chamber 66.In addition, ink duct 52 has filled up a porous material 54 (as sponge), is used for making the ink in the ink duct 52 can not flow out outside the ink duct 52 under the situation of ink cartridge 50 not ink supply.The top side of ink barrel 64 is provided with a filter screen 78, is used for filtering the ink that ink duct 52 reaches ink barrel 64, flows to ink channel 62 to avoid the non-ink impurity in the ink duct 52, and has influence on the ink supply quality of ink cartridge 50.

Ink cartridge 50 includes an ink gun 74 in addition, and it includes a plurality of heater (not shown)s and a plurality of nozzle (not shown), and this heater is used for to the heating of the ink in the ink gun 74 to produce a plurality of bubbles.Wherein the bubble that heater produced can be pushed the ink in the ink gun 74, and makes a plurality of nozzle ejections of ink from ink gun 74.When bubble 76 shrinks when incomplete, part bubble 76 can because of and ink channel 62 interior inks between buoyancy up move in the bubble storage chamber 66.Therefore, because of there being part to be contained directly over the ink gun 74 by bubble storage chamber 66, so when residual bubble produces, will have the bubble 76 of part to float in the bubble storage chamber 66, reduce the purpose of residual bubble for the influence of ink cartridge 50 runnings thereby can reach.Therefore ink cartridge 50 of the present invention can reduce that bubble 76 is deposited in filter screen 78 surface below and the situation that has influence on ink cartridge 50 normal ink supply.

Please refer to Fig. 5 to Fig. 7, Fig. 5 is the schematic diagram of second embodiment of the invention ink cartridge 100, and Fig. 6 is the cutaway view of Fig. 5 ink cartridge 100 along tangent line 6-6, and Fig. 7 is the cutaway view of Fig. 5 ink cartridge 100 along tangent line 7-7.Ink cartridge 100 includes the ink that three ink ducts 102 are used for storing respectively yellow (Yellow), carmetta (Magenta) and ocean blue (Cyan), and three ink channels 112 are formed at the bottom side of corresponding ink duct 102 respectively, are used for transmitting the ink in the ink duct 102.Ink duct 102 belows then are provided with two compartment plate 106, are used for making three inks in the ink channel 112 can not be mixed with each other.In addition, it is one one-body molded and protrude in the fin 118 of ink duct 102 bottoms with ink duct 102 bottoms that the bottom of each ink duct 102 all has, and is used for separating ink channel 112, to form a bubble storage chamber 116 that can be used to store bubble 126.Ink cartridge 100 comprises three runner plates 132 in addition, is located at ink cartridge 100 belows respectively and engages with the bottom of corresponding ink duct 102.As Figure 6 and Figure 7, each runner plate 132 at least respectively includes a welding end 134, and welding end 134 is to be engaged in ink duct 102 bottoms by the ultrasonic fusion techniques, and makes runner plate 132 be able to engage with ink duct 102.Wherein, can constitute a corresponding ink channel 112 between ink duct 102 bottoms of each runner plate 132 and a correspondence, and bubble storage chamber 126 promptly is to be formed at after ink runner 112 is separated among the ink channel 112 because of fin 118.

In addition, ink cartridge 100 comprises three ink barrels 114 in addition, each ink barrel 114 is to be located between ink duct 102 and the bubble storage chamber 116 in the mode of the ink channel 112 that connects a correspondence respectively, is used for receiving ink that ink duct 102 transmitted to ink channel 112.In addition, can form a runner 122 between each fin 118 runner plate 132 corresponding with it, when the ink of ink duct 102 exported ink gun 124 to, the runner 122 of must flowing through was earlier just flow to ink gun 124.As shown in Figure 6, ink cartridge 100 comprises three floss holes 106 in addition, is used for exporting the stored ink of ink duct 102 to ink gun 124, and each floss hole 106 then is connected to the ink channel 112 of a correspondence.When the ink in the ink duct 102 is sent to ink gun 124, can successively flows through ink channel 112 and floss hole 106 and arrive ink gun 124.In addition, the top side of each ink barrel 114 is respectively equipped with a filter screen 128, is used for filtering the ink that ink duct 102 reaches ink barrel 114, flows to ink channel 112 to avoid the impurity in the ink duct 102, and influences the ink supply quality of ink cartridge 100.102 of each ink ducts have filled up a porous material 104 respectively, are used for making the ink in the ink duct 102 can not flow out outside the ink duct 102 under the situation of ink cartridge 100 not ink supply.

Ink cartridge 100 comprises an ink gun 124, and it includes a plurality of heater (not shown)s and a plurality of nozzle (not shown), and this heater is used for to the heating of the ink in the ink gun 124 to produce a plurality of bubbles.Wherein the bubble that this heater produced can be pushed the ink in the ink gun 124, and makes a plurality of nozzle ejections of ink from ink gun 124.When bubble shrinkage is incomplete, can because of and the interior inks of ink channel 112 between buoyancy up move in the bubble storage chamber 116.In addition, because of being contained fully by 116 of three bubble storage chambers directly over the ink gun 112, and because of the volume of each bubble storage chamber 116 greater than 0.2 cubic centimeter, be enough to be contained in ink cartridge 100 till ink exhausts during, the whole residual bubble that this a plurality of heater produced, so when bubble 126 contractions were incomplete, bubble 126 can not float to ink barrel 114 via runner 122, and is deposited in the surface below of filter screen 128.The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.

Claims

1. an ink cartridge (ink container), it includes:

One ink duct is used for storage ink;

One bubble storage chamber is located at the bottom side of this ink duct, is used for storing bubble;

One ink gun, it includes a plurality of heaters, is used for the ink in this ink gun is heated to produce a plurality of bubbles, and these a plurality of bubbles can be pushed out ink this ink gun; And

One ink channel is located at the bottom side of ink duct, is used for transmitting ink in this ink duct to this ink gun;

Wherein the bubble that this a plurality of heater produced can move in this bubble storage chamber because of buoyancy up moves to make to the small part bubble.

2. ink cartridge as claimed in claim 1, it comprises an ink barrel in addition, is located between this ink duct and this ink channel in the mode that connects this ink channel, is used for receiving the ink that this ink duct transmits.

3. ink cartridge as claimed in claim 2, it comprises a filter screen in addition, is located at the top side of this ink barrel, is used for filtering the ink that this ink duct reaches this ink barrel.

4. ink cartridge as claimed in claim 1, wherein the bottom of this ink duct includes a fin, protrudes in this ink channel, is used for separating this ink channel to form this bubble storage chamber.

5. ink cartridge as claimed in claim 4, it comprises a runner plate in addition, engages with the bottom of this ink duct, is used for forming this ink runner and this bubble storage chamber with the bottom of this fin and this ink duct.

6. ink cartridge as claimed in claim 5, wherein this ink duct and this runner plate utilize the ultrasonic welding to engage.

7. ink cartridge as claimed in claim 5 wherein can form a runner between this fin and this runner plate, and the ink of this ink duct must be flowed through earlier and just be exported to this ink gun behind this runner.

8. ink cartridge as claimed in claim 1, wherein this ink gun comprises a plurality of nozzles, is used for spraying the ink in this ink channel.

9. ink cartridge as claimed in claim 1, wherein the volume of this bubble storage chamber is greater than 0.2 cube of branch public affairs.

10. ink cartridge as claimed in claim 1, wherein this bubble storage chamber is positioned at the top of this ink gun.

11. ink cartridge as claimed in claim 1, it includes a plurality of these ink ducts, a plurality of this ink channel and a plurality of floss hole, wherein in each ink channel, respectively has this bubble storage chamber, and each ink channel is connected in the ink duct of a correspondence and the floss hole of a correspondence, be used for transmitting the floss hole that the ink in its ink duct that connects is extremely connected, so that this floss hole is exported the interior ink of this ink duct to this ink gun.

12. ink cartridge as claimed in claim 11, it includes three these ink ducts, three these ink channels and three these floss holes, and wherein these three ink ducts are used for storing the ink of three kinds of different colours.

13. ink cartridge as claimed in claim 1, wherein this bubble storage chamber and this ink duct are integrally formed, and this bubble storage chamber is a groove of this ink duct.