CN100569522C - printing chip and ink-jet head structure - Google Patents

Abstract

The present invention is a printing chip and an inkjet head structure. The printing chip is suitable for the inkjet head structure. A plurality of welding pads are arranged on two opposite sides of the printing chip. The printing chip is characterized in that: the printing chip is provided with at least one ink outlet side in a direction perpendicular to the plurality of welding pads to form at least one side ink supply channel with a body of the ink cartridge, and at least one central ink supply channel is provided between the two opposite sides where the plurality of welding pads are arranged and in a direction parallel to the at least one side ink supply channel.

Description

Printing chip and inkjet head structure

technical field

The invention relates to a printing chip fluid supply structure, in particular to a printing chip fluid supply structure applied to an inkjet printer.

Background technique

In addition to laser printers, inkjet printers are another widely used type of printers currently on the market. They have the advantages of low price, easy operation, and low noise, and can print on various types of paper, such as paper and photo paper. Inkjet media. The printing quality of an inkjet printer mainly depends on factors such as the design of the ink cartridge, especially the design of the mechanism that controls the printing chip to release ink droplets to the inkjet medium is an important consideration in the design of the ink cartridge.

In terms of the existing thermal bubble inkjet technology, in order to improve the resolution of the ink cartridge printed on the inkjet media, most of them adopt the design of the central ink supply flow channel, mainly by increasing the number of nozzle holes. way to improve the resolution of inkjet. Please refer to Fig. 1, which is a structural schematic diagram of an existing inkjet head using a central ink supply channel. A central ink supply channel 12 parallel to a plurality of welding pads 11 on both sides is arranged in the center of the central ink supply channel 12, and a plurality of ink chambers 13 and a plurality of heating resistors (not shown) are arranged on two opposite sides of the central ink supply channel 12 icon). In addition, there is an orifice plate 14, which has a plurality of orifices 141, and the position of the orifices 141 is relative to the ink chamber 13, so when the printing chip 1 is assembled with the orifice plate 14, it is arranged on the ink outlet of the ink cartridge ( (not shown), the ink will flow from the central ink supply channel 12 to the multiple ink chambers 13 on both sides, and after being heated by a heating resistor (not shown), the ink will be sprayed by the corresponding nozzles on the orifice plate 14. The holes 141 eject onto the inkjet media.

Although the inkjet head using the central ink supply channel 12 has a relatively high resolution, the process of forming the printing chip 1 requires sandblasting, laser cutting or etching to form the central ink supply channel 12. The cleanliness of the sand process is low, while the cost of laser processing is expensive, and the etching will make the structure of the printed chip 1 relatively fragile, thereby increasing the processing cost and manufacturing cost. In addition, in order to reserve space for the central ink supply channel 12 , it is inevitable to have a rather large size of the printing chip 1 , which will increase the manufacturing cost of the printing chip 1 .

In order to solve the above problems, the prior art has developed a printing chip using a side ink supply channel, please refer to Figure 1 for a schematic structural diagram of an existing inkjet head using a side ink supply channel, as shown in the figure, The two opposite sides of the printing chip 2 of the inkjet head are also provided with a plurality of welding pads 21, while the other two sides different from the welding pads 21 have side ink supply flow channels 22 respectively, and the side ink supply flow channels One side of 22 is also provided with a plurality of ink chambers 23 and a plurality of heating resistors (not shown). In addition, the inkjet head also has an orifice plate 24 with a plurality of orifices 241. The position of the orifices 241 is relative to the ink chamber 23, so when the printing chip 2 is assembled with the orifice plate 24, it is arranged at the ink outlet of the ink cartridge. (not shown), the ink will flow from the side ink supply flow channel 22 of the printing chip 2 to a plurality of ink chambers 23, and after being heated by a heating resistor, it will be sprayed by the corresponding nozzle holes 241 on the nozzle hole plate 24. onto inkjet media.

However, although the printing chip 2 using the side ink supply flow channel 22 can omit the processing steps of forming the central ink supply flow channel, its structure is stronger than that of the printing chip 2 using the central ink supply flow channel, and its size is relatively small, which has the advantages of It has the advantages of reducing the processing cost and material cost of the printing chip 2. However, this method of using the side ink supply flow channel can only be used to configure the nozzle holes on both sides of the printing chip 2. Therefore, the nozzle holes of the inkjet head The number of permutations will be limited, relatively affecting the resolution.

Therefore, how to develop a printing chip fluid supply structure that considers cost, resolution, and printing quality at the same time is an urgent problem to be solved by those in the related technical field.

Contents of the invention

The main purpose of the present invention is to provide a printing chip fluid supply structure, which is suitable for an ink cartridge, which combines the central ink supply flow channel and the side ink supply flow channel, and mainly saves the printing chip by the side ink supply flow channel. The overall area can reduce the production cost, and the design of the central ink supply channel can increase the number of nozzle holes, so as to have higher resolution and improve printing quality.

In order to achieve the above-mentioned purpose, a kind of printing chip of the present invention is suitable for an inkjet head structure of an ink cartridge, and two opposite sides of the printing chip are provided with a plurality of welding pads, and it is characterized in that: the printing chip is vertically The directions of the plurality of welding pads are provided with at least one ink outlet side, which is used to form at least one side of the ink supply channel with a body of the ink cartridge, and between two opposite sides of the plurality of welding pads and parallel to at least one side. The direction of the side ink supply channel has at least one central ink supply channel.

According to the idea of the present invention, the printing chip is provided with two ink outlet sides in the direction perpendicular to the plurality of welding pads, and is used to form two side ink supply channels with the body of the ink cartridge.

According to the idea of the present invention, wherein the printing chip is provided with two central ink supply channels between two opposite sides of a plurality of welding pads and parallel to the direction of at least one ink supply channel, and the two central ink supply channels are tied.

According to the idea of the present invention, wherein the printing chip is provided with two central ink supply channels between two opposite sides of a plurality of welding pads and parallel to at least one side of the ink supply channel, and the two central ink supply channels are Tandem.

According to the idea of the present invention, the printing chip is provided with three central ink supply channels between two opposite sides of a plurality of welding pads and parallel to the direction of at least one ink supply channel, and the three central ink supply channels are parallel .

According to the idea of the present invention, the printing chip is provided with three central ink supply channels between two opposite sides of the plurality of welding pads and parallel to the direction of at least one ink supply channel, and the three central ink supply channels are connected in series. List.

According to the idea of the present invention, wherein the printing chip is provided with five central ink supply channels between two opposite sides of a plurality of welding pads and parallel to the direction of at least one ink supply channel, and the five central ink supply channels are tied.

According to the idea of the present invention, wherein the printing chip is provided with at least one side ink drop generator group substantially adjacent to the surface of at least one side ink supply channel, and substantially adjacent to the surface of at least one central ink supply channel. There is at least one central ink drop generator group, at least one side ink drop generator group and at least one central ink drop generator group to generate a plurality of ink droplets due to heating.

According to the idea of the present invention, the printing chip is provided with two sets of side ink drop generator groups on the surface substantially adjacent to at least one side ink supply channel, and two groups of side ink drop generator groups are substantially adjacent to at least one central ink supply channel. The side surfaces are also respectively provided with a central ink drop generator group.

According to the idea of the present invention, the printing chip is provided with two sets of side ink drop generator groups on the surface substantially adjacent to at least one side ink supply channel, and two groups of side ink drop generator groups are substantially adjacent to at least one central ink supply channel. The side surfaces are also respectively provided with two central ink drop generator groups.

According to the idea of the present invention, the printing chip is provided with only one side ink drop generator group on the surface substantially adjacent to at least one side ink supply flow channel, and is substantially adjacent to the two side surfaces of at least one central ink supply flow channel There is also only one central ink drop generator group respectively.

According to the idea of the present invention, the printing chip is provided with only one side ink drop generator group on the surface substantially adjacent to the side ink supply channels, and substantially adjacent to the two sides of the central ink supply channels There is also only one central ink drop generator group on the surface respectively.

According to the idea of the present invention, a nozzle orifice plate is arranged on the printing chip, and the nozzle orifice plate has a plurality of nozzle holes, and the plurality of nozzle holes correspond to the side ink drop generator group and the central ink drop generator group on the printing chip The group is used for ejecting a plurality of ink droplets generated by the ink drop generator group onto an inkjet medium from a plurality of nozzle holes corresponding to the nozzle hole plate.

In order to achieve the above object, the present invention provides an inkjet head structure, which is suitable for an ink cartridge for spraying a plurality of ink droplets onto an inkjet medium. The inkjet head includes: a printing chip, generally in the form of Rectangle, its two opposite sides are provided with a plurality of welding pads, and at least one ink outlet side is arranged in the direction perpendicular to the plurality of welding pads, in order to form at least one side ink supply channel with one body of the ink cartridge, and There is at least one central ink supply channel between two opposite sides of a plurality of welding pads and parallel to the direction of at least one side ink supply channel; only one side ink droplet generator group is arranged on the surface of the printing chip and substantially adjacent to each side ink supply channel for generating a plurality of ink droplets due to heating; only one central ink drop generator group is arranged on the surface of the printing chip and substantially adjacent to each central ink supply flow channel for generating a plurality of ink droplets due to heating; and an orifice plate with a plurality of orifices relative to the side droplet generator group and the central ink droplet generator group, when the orifice plate and When the printing chips are combined, the ink droplets generated by the side ink drop generator group and the central ink drop generator group are ejected from the corresponding nozzle holes onto the ink jet medium.

To achieve the above object, the present invention provides another inkjet head structure, which is suitable for an ink cartridge to spray a plurality of ink droplets onto an inkjet medium. The inkjet head includes: a printing chip, generally It is rectangular, with a plurality of welding pads arranged on two opposite sides, and at least one ink outlet side is arranged in the direction perpendicular to the plurality of welding pads, and is used to form at least one side of the ink supply channel with a body of the ink cartridge, And there are multiple central ink supply channels between two opposite sides of the plurality of welding pads and parallel to the direction of at least one ink supply channel, wherein the multiple central ink supply channels are in series; at least one side The ink drop generator group is arranged on the surface of the printing chip and is substantially adjacent to at least one side of the ink supply channel, and is used to generate a plurality of ink drops due to heating; a plurality of central ink drop generator groups are arranged on the The surface of the printing chip is substantially adjacent to a plurality of central ink supply channels for generating a plurality of ink droplets due to heating; and an orifice plate having a plurality of orifices relative to at least one side drop generator group group and a plurality of central ink drop generator groups, when the orifice plate is combined with the printing chip, it is used to combine at least one side ink drop generator group and a plurality of central ink drop generator groups. Ink droplets are ejected from the corresponding nozzle holes onto the inkjet medium.

In order to further illustrate the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic structural diagram of an existing inkjet head using a central ink supply channel.

FIG. 2 is a schematic structural view of an inkjet head using a side ink supply channel.

Fig. 3 is a schematic structural view of the inkjet head according to the first preferred embodiment of the present invention.

FIG. 4 is a schematic diagram of the combination of the printing chip, the orifice plate and the ink cartridge according to the first preferred embodiment of the present invention.

FIG. 5 is a partially enlarged view of FIG. 3 .

FIG. 6 is a perspective view of FIG. 3 after assembly.

Fig. 7 is a perspective view showing the structure of an ink jet head according to a second preferred embodiment of the present invention.

Fig. 8 is a perspective view showing the structure of an ink jet head according to a third preferred embodiment of the present invention.

Fig. 9 is a perspective view showing the structure of an ink jet head according to a fourth preferred embodiment of the present invention.

Detailed ways

Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the invention is capable of various changes in different aspects without departing from the scope of the invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

Please refer to FIG. 3, which is a schematic diagram of the inkjet head structure of the first preferred embodiment of the present invention. As shown in the figure, the inkjet head structure may include a printing chip 3, ink droplet generator groups 331, 341, and an orifice plate 35. , and the inkjet head structure is assembled on the body 4 of an ink cartridge (as shown in FIG. 4 ). As shown in FIG. 3 , the printing chip 3 is roughly in the shape of a rectangle, and two opposite sides thereof are respectively provided with a plurality of welding pads 31, which are mainly used for electrical connection with the system control circuit (not shown) of the inkjet printer. The printing chip 3 is triggered by the control signal sent by the system control circuit of the inkjet printer to heat and eject the ink stored in the ink cartridge to the inkjet medium (not shown), and the printing chip 3 is perpendicular to the multiple The two sides of welding pad 31 setting direction, promptly parallel to the printing direction that ink-jet medium moves, are respectively provided with an ink outlet side 32, so when the ink-jet head shown in Figure 3 and ink box are assembled together, print The ink outlet sides 32 on both sides of the chip 3 will form two side ink supply channels 33 (as shown in FIG. 4 ) with the body 4 of the ink cartridge. In this embodiment, between a plurality of welding pads 31 and A central ink supply channel 34 is further provided between the two side ink supply channels 33 , and the central ink supply channel 34 is parallel to the two side ink supply channels 33 .

Please refer to FIG. 3 again and cooperate with FIG. 5 . FIG. 5 is a partially enlarged view of FIG. 3 . As shown in the figure, there are two sets of side ink drop generator groups 331 on the surface of the printing chip 3, and they are respectively adjacent to the two side ink supply channels 33, and the side ink drop generator groups 331 are formed by It consists of a plurality of ink drop generators, each of which includes an ink chamber 36 and a heating resistor 37 disposed in the ink chamber 36. Similarly, on the surface of the printing chip 3 and adjacent to the central ink supply flow The side of the channel 34 is also provided with a set of central ink drop generator group 341, the central ink drop generator group 341 is also composed of a plurality of ink drop generators, and each ink drop generator all includes an ink chamber 36 and heating resistor 37, so when the inkjet head is assembled on the ink cartridge body 4 (as shown in Figure 4), the ink stored inside the ink cartridge will pass through the ink supply channels 33 on both sides and the central ink supply channel 34 respectively flow into each ink chamber 36 of the corresponding side ink drop generator group 331 and the central ink drop generator group 341, and after being heated by the heating resistor 37 in the ink chamber 36, the ink is ejected to the inkjet medium superior.

Please refer to Fig. 3 again and cooperate with Fig. 4, 5, wherein the figure of Fig. 3, 5 is the nozzle hole plate 35 of cutting part to expose the structural representation of the printed chip, in this embodiment, the top of the printed chip 3 An orifice plate 35 is provided, and the length of the orifice plate 35 is substantially equal to the length of the printing chip 3 (as shown in FIG. 4 ). The orifice plate 35 is provided with two notches 351, so that its shape is substantially "H". 3 When combined, the welding pad 31 will be exposed, so that the welding pad 31 can be electrically connected with the system control circuit of the inkjet printer. The width of the orifice plate 35 is substantially larger than the width of the printing chip 3, so when the orifice plate 35 and the printing chip 3 are combined into an inkjet head and installed to the ink cartridge body 4, the ink will not be supplied from the side. The ink flow path 33 bleeds out (as shown in FIG. 4 ). The orifice plate 35 is provided with a plurality of orifices 352, and the positions of the orifices 352 are respectively corresponding to the ink of the side ink drop generator group 331 or the central ink drop generator group 341 on the printing chip 3. The drop generator, in more detail, is that a plurality of nozzle holes 352 correspond to the heating in the ink chamber 36 of the ink drop generator of the side ink drop generator group 331 or the central ink drop generator group 341 respectively. Resistor 37 is that the ink stored in the ink cartridge can flow from the side ink supply channel 33 and the central ink supply channel 34 to the side ink drop generator group 331 and the central ink drop generator group 341 respectively. Each ink chamber 36 of the drop generator is heated by the heating resistor 37 in the ink chamber 36 and ejected to the inkjet medium through the corresponding nozzle hole 352 on the nozzle hole plate 35 .

Please refer to FIG. 6 which is an assembled perspective view of FIG. 3 . As shown in the figure, after the combination of the printing chip 3 and the orifice plate 35, an inkjet head structure is formed, and a side ink droplet generator group 331 is respectively provided adjacent to the ink supply channel 33 on both sides, and a side ink drop generator group 331 is provided adjacent to the central supply channel. A central ink drop generator group 341 is provided near the ink channel 34, and a plurality of nozzle holes 352 on the orifice plate 35 correspond to the side ink drop generator group 331 and the central ink drop generator group 341. The ink cavity 36 of the ink drop generator makes the ink heated to ink bubbles through the heating resistor 37 (as shown in the fifth figure) in the ink cavity 36 of the ink drop generator, and is ejected through the nozzle hole 352 corresponding to the heating resistor 37 to on inkjet media.

Although in FIG. 6, a group of side ink drop generator groups 331 are respectively arranged on the surface of the printing chip 3 adjacent to the ink supply channel 33 on both sides, and the printing chip 3 is adjacent to and parallel to the surface of the central ink supply channel 34. On the surface, only one side of the central ink supply channel 34 is provided with a central ink drop generator group 341 , but the implementation of the ink drop generator group is not limited thereto. For example, to cooperate with the side ink supply flow channel 33 and the central ink supply flow channel 34 of this embodiment, two sets of side ink droplet generator groups can also be respectively provided adjacent to the two side ink supply flow channels. The two side ink drop generator groups are adjacent to the two side ink supply channels and arranged in a staggered manner so that the ink in the side ink supply channels can flow to the two side ink drop generator groups, Or only one group or two sets of side ink drop generator groups arranged in a staggered manner are arranged on the side ink supply channel 33 on one side, and one group or Two central groups of drop generators. In other words, the number of side ink drop generator groups and central ink drop generator groups is not directly related to the side ink supply flow channel and the central ink supply flow channel, and ink can be supplied on the side arbitrarily according to requirements The flow channel or central ink supply channel configures one or more side drop generator groups or central drop generator groups.

Certainly, the ink supply structure of the printing chip 3 is not limited to the above-mentioned two side ink supply channels 33 and a central ink supply channel 34. Please refer to FIG. picture. As shown in the figure, the structure of the inkjet head also includes a printing chip 3, ink drop generator groups 331, 341, and an orifice plate 35. As for the arrangement of multiple welding pads 31 and ink supply channels 33, 34 of the printing chip 3 The direction has been described in detail in the first preferred embodiment, so it will not be repeated here. In this preferred embodiment, the single side of the printing chip 3 has a side ink supply channel 33 and two central ink supply channels 34 on the surface of the printing chip 3, and the two central ink supply channels 34 For setting side by side, that is to say two by two side by side parallel. In addition, a side ink droplet generator group 331 is arranged on the surface of the printing chip 3 adjacent to the side ink supply channel 33, and on the surface of the printing chip 3 adjacent to and parallel to the two central ink supply channels 34, each A group of central ink drop generator groups 341 is disposed on one side of the two central ink supply channels 34 . Of course, the side ink drop generator group 331 and the central ink drop generator group 341 are all composed of a plurality of ink drop generators, and each ink drop generator is composed of an ink chamber and an ink chamber located in the ink chamber. Composed of heating resistors (please cooperate with reference to FIG. 5), and a plurality of nozzle holes 352 on the orifice plate 35 are corresponding to the heating resistors in the ink cavity of each ink drop generator in each ink drop generator group, Therefore, the ink is heated by the heating resistor, and then ejected from the nozzle hole 352 onto the inkjet medium.

Similarly, in FIG. 7, it is only disclosed that the printing chip 3 is provided with a side ink droplet generator group 331 on the surface adjacent to the side ink supply channel 33, and one side of the two central ink supply channels 34 is respectively provided with There is a central ink droplet generator group 341, but the channel design that matches this embodiment is not limited to the above-mentioned configuration. The ink flow channel 34 can also be provided with two sets of side ink drop generator groups on the side of the printing chip 3 adjacent to the side ink supply flow channel 33, and two sides of the two central ink supply flow channels 34 are respectively provided with a Group or two central groups of drop generators. Of course, it is also possible to add a side ink supply flow channel on the opposite side of the original side ink supply flow channel 33, so that it is the two side ink supply flow channels plus two central ink supply flow channels, and the increased side The configuration of the side ink drop generator group of the side ink supply channel 33 can be the same as that of the side ink drop generator group 331 of the original side ink supply channel 33 .

Please refer to FIG. 8, which is a perspective view of the inkjet head structure of the third preferred embodiment of the present invention. As shown in the figure, the inkjet head structure also includes a printing chip 3, ink droplet generator groups 331, 341 and an orifice plate 35. As for the arrangement directions of the plurality of bonding pads 31 of the printing chip 3 and the ink supply flow channels, they have been described in detail in the first preferred embodiment, so they will not be repeated here. In this preferred embodiment, the side of the printing chip 3 has two side ink supply channels 33, and three central ink supply channels 34 are arranged between the two side ink supply channels 33, and The three central ink supply flow channels 34 are arranged side by side. The printing chip 3 has side ink drop generator groups 331 on the surfaces adjacent to the two side ink supply flow channels 33 respectively, and one of the central ink supply flow channels 34 The sides respectively have a central ink drop generator group 341 , and the arrangement thereof is the same as that of the second preferred embodiment shown in FIG. 7 , so it will not be repeated here.

From the embodiments disclosed in FIG. 7 and FIG. 8, it can be seen that the printing chip 3 can be configured as one side ink supply channel with multiple central ink supply channels, or with two side ink supply channels with multiple central ink supply channels according to requirements. Ink flow channel, for example, the number of the plurality of central ink supply flow channels can be four or five, but not limited thereto, so that the arrangement number of nozzle holes 352 of the orifice plate 35 can match the side ink supply The number of flow channels and the central ink supply flow channel is relatively increased to provide better printing quality and improve printing resolution.

The central ink supply flow channel and the side ink supply flow channels disclosed in Figure 3 to Figure 8 are arranged in parallel in a parallel manner, but in a preferred embodiment of the present invention, the central ink supply flow channel and the side ink supply flow channel The side ink supply flow channels are not limited to parallel arrangement, but also can be implemented in series. Please refer to FIG. 9, which is a perspective view of the structure of the inkjet head according to the fourth preferred embodiment of the present invention. In this embodiment, the inkjet head structure includes three inkjet groups g1, g2 and g3 arranged in series, that is, the inkjet groups g1, g2 and g3 are arranged on the same line parallel to the printing direction Above, of course, the nozzle holes 352 of the nozzle hole plate 35 are also arranged in series in accordance with the arrangement of the ink jet groups g1 , g2 and g3 . Each inkjet group g1, g2 or g3 is respectively composed of two side ink supply flow channels 33 and a central ink supply flow channel 34 to cooperate with a side ink drop generator group 331 and a central ink drop generator group 341 Constitute, of course, the side ink supply channel 33, the central ink supply channel 34, the side ink drop generator group 331, and the central ink drop generator in each inkjet group g1, g2, and g3 The number and manner of configuration of the group 341 are not limited thereto, and the embodiments shown in Fig. 3 to Fig. 8 can also be used. The inkjet head manufacturer can make various changes according to actual needs to increase the number of nozzle holes arranged. Of course , the number of inkjet groups in series can also be adjusted differently according to requirements.

As can be seen from the above description, the main technical feature of the fluid supply structure of the printing chip of the present invention is the combination of the side ink supply channel and the central ink supply channel to achieve better printing quality, improve printing resolution and reduce production costs. , so the configuration of the side ink supply flow channel and the central ink supply flow channel is not particularly limited, for example, at least one ink outlet side and the body of the ink cartridge define at least one side ink supply flow channel, and at least A printing chip fluid supply structure of a central ink supply channel is within the protection scope of the present invention. In addition, the arrangement of the side ink supply flow channel and the central ink supply flow channel of the present invention is not limited, and at least one side ink supply flow channel can cooperate with a central ink supply flow channel, one side ink supply flow channel Cooperate with multiple parallel central ink flow channels (as shown in Figure 7), two side ink supply channels with multiple parallel central ink supply channels (as shown in Figure 8) and side or central ink supply channels in series Set in a row (as shown in Figure 9).

Also, although the present invention takes one side ink supply flow channel to cooperate with one side ink drop generator group as an example, it is not limited thereto. In other words, one side ink supply flow channel can also cooperate with two or more groups of staggered The set ink drop generator group, as well as the central ink supply flow channel, one or more central ink drop generator groups can be arranged on one side parallel to and adjacent to a central ink supply flow channel, or respectively arranged on The two sides of the central ink drop generator group can adjust the arrangement of the ink supply channel and the ink drop generator group according to actual needs, thereby improving the resolution and printing quality.

Of course, the combination of the side ink supply channel 33 and the central ink supply channel 34 for the printing chip 3 presented in the above-mentioned embodiments can meet the needs of higher resolution, better printing quality and low production cost. However, in practical applications, each ink drop generator group of the printing chip 3 can use inks of different colors to complete the work of multi-color inkjet printing.

In summary, the present invention provides a print chip fluid structure combining side ink supply channels and central ink supply channels. The ink supply channel can save the overall area of the printing chip and reduce the manufacturing cost, and the central ink supply channel is used to increase the number of nozzle holes on the nozzle plate to provide a higher resolution and better printing High-quality printing chip, in other words, the fluid structure of the printing chip of the present invention combines the advantages of the side ink supply channel and the central ink supply channel to provide a more complete and competitive printing chip, so that the use of ink cartridges can be improved more complete.

Even though the present invention has been described in detail by the above-mentioned embodiments and can be modified by those who are familiar with the art, they are all within the intended protection of the appended patent scope.

Claims (13)

1. printing chip, it is applicable to an ink gun structure of an ink cartridges, the two opposite sides of this printing chip are provided with a plurality of weld pads, it is characterized in that:

This printing chip is provided with at least one black side that goes out in the direction of vertical these a plurality of weld pads, constitute at least one side ink supply runner in order to a body with this ink cartridges, and between the two opposite sides that these a plurality of weld pads are set and the direction of parallel this at least one side ink supply runner have at least one central ink supply runner;

This printing chip is provided with at least one side ink droplet generator group in the surface of contiguous this at least one side ink supply runner, and the surface of contiguous this at least one central ink supply runner of this printing chip is provided with at least one central ink droplet generator group, and at least one central ink droplet generator of this at least one side ink droplet generator group and this group is a plurality of ink droplets because of heat effect produces; And

One jet orifice plate is set on this printing chip, this jet orifice plate has a plurality of spray orifices, these a plurality of spray orifices are corresponding to this side ink droplet generator group on this printing chip and should ink droplet generator group of central authorities, in order to this ink droplet generator group is produced a plurality of ink droplets respectively from being ejected on the ink-jet medium corresponding to these a plurality of spray orifices on this jet orifice plate.

2. printing chip as claimed in claim 1 is characterized in that: this printing chip is provided with scene 2 China ink side in the direction of vertical these a plurality of weld pads, constitutes dual-side ink supply runner in order to this body with this ink cartridges.

3. printing chip as claimed in claim 1 is characterized in that: this printing chip between the two opposite sides that these a plurality of weld pads are set and parallel this at least one side ink supply runner direction be provided with two central ink supply runners, and this two central ink supply runner is arranged side by side.

4. printing chip as claimed in claim 1 is characterized in that: this printing chip between the two opposite sides that these a plurality of weld pads are set and the direction of parallel this at least one side ink supply runner be provided with two central ink supply runners, and this two central ink supply runner is a tandem.

5. printing chip as claimed in claim 1 is characterized in that: this printing chip between the two opposite sides that these a plurality of weld pads are set and the direction of parallel this at least one side ink supply runner be provided with three central ink supply runners, and this three central ink supply runner is arranged side by side.

6. printing chip according to claim 1 is characterized in that: this printing chip between the two opposite sides that these a plurality of weld pads are set and the direction of parallel this at least one side ink supply runner be provided with three central ink supply runners, and this three central ink supply runner is a tandem.

7. printing chip as claimed in claim 1 is characterized in that: this printing chip between the two opposite sides that these a plurality of weld pads are set and the direction of parallel this at least one side ink supply runner be provided with five central ink supply runners, and this five central ink supply runner is arranged side by side.

8. printing chip as claimed in claim 1, it is characterized in that, this printing chip is respectively equipped with two groups of side ink droplet generator groups in the surface of contiguous this at least one side ink supply runner, and this printing chip is close to the both side surface of this at least one central ink supply runner and also respectively is provided with a central ink droplet generator group respectively.

9. printing chip as claimed in claim 1, it is characterized in that: this printing chip is respectively equipped with two groups of side ink droplet generator groups in the surface of contiguous this at least one side ink supply runner, and the both side surface of contiguous this at least one central ink supply runner of this printing chip also respectively is provided with two central ink droplet generator groups respectively.

10. printing chip as claimed in claim 1, it is characterized in that: this printing chip only is provided with a side ink droplet generator group in the surface of contiguous this at least one side ink supply runner, and this printing chip is close to the both side surface of this at least one central ink supply runner and also only is respectively equipped with a central ink droplet generator group.

11. as each described printing chip of claim 2 to 7, it is characterized in that: this printing chip only is respectively equipped with a side ink droplet generator group in the surface of contiguous these side ink supply runners, and the both side surface of contiguous these the central ink supply runners of this printing chip also only is respectively equipped with a central ink droplet generator group.

12. an ink gun structure, it is applicable to an ink cartridges,, it is characterized in that this ink gun comprises in order to a plurality of ink droplets are sprayed onto on the ink-jet medium:

One prints chip, rectangular, its two opposite sides are provided with a plurality of weld pads, and be provided with at least one black side that goes out in the direction of vertical these a plurality of weld pads, in order to constituting at least one side ink supply runner with one of this ink cartridges body, and between the two opposite sides that these a plurality of weld pads are set and the direction of parallel this at least one side ink supply runner have at least one central ink supply runner;

One side ink droplet generator group is only arranged, be arranged at surface and contiguous this each side ink supply runner of this printing chip, in order to produce a plurality of ink droplets because of heat effect;

One central ink droplet generator group is only arranged, be arranged at surface and contiguous this each central ink supply runner of this printing chip, in order to produce a plurality of ink droplets because of heat effect; And

One jet orifice plate, have a plurality of spray orifices with respect to this side ink droplet generator group and should ink droplet generator group of central authorities, when this jet orifice plate combines with this printing chip, be ejected on these ink-jet medium from pairing these a plurality of spray orifices in order to these a plurality of ink droplets that this side ink droplet generator group and this ink droplet generator group of central authorities are produced.

13. an ink gun structure, it is applicable to an ink cartridges,, it is characterized in that this ink gun comprises in order to a plurality of ink droplets are sprayed onto on the ink-jet medium:

One prints chip, rectangular, its two opposite sides are provided with a plurality of weld pads, and be provided with at least one black side that goes out in the direction of vertical these a plurality of weld pads, constitute at least one side ink supply runner in order to a body with this ink cartridges, and between the two opposite sides that these a plurality of weld pads are set and the direction of parallel this at least one side ink supply runner have a plurality of central ink supply runners, wherein these a plurality of central ink supply runners are tandem;

At least one side ink droplet generator group is arranged at surface and contiguous this at least one side ink supply runner of this printing chip, in order to produce a plurality of ink droplets because of heat effect;

A plurality of central ink droplet generator group is arranged at surface and contiguous these a plurality of central ink supply runners of this printing chip, in order to produce a plurality of ink droplets because of heat effect; And

One jet orifice plate, cording has a plurality of spray orifices with respect to a plurality of central ink droplet generator of this at least one side ink droplet generator group and this group, when this jet orifice plate combines with this printing chip, in order to should be at least one these a plurality of ink droplets of being produced of a plurality of central ink droplet generator of side ink droplet generator group and this group be ejected on these ink-jet medium from pairing these a plurality of spray orifices.

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