Ink jet unit group
A unit group and inkjet technology, applied in printing and other directions, can solve the problems of high manufacturing cost, increased production cost, and increased area of inkjet chips
Active Publication Date: 2014-09-10
MICROJET TECH
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Problems solved by technology
Conversely, when the address signal A received by the control contact 13 is a relatively logic low potential (Low), the switching element 12 is turned off. At this time, the voltage signal P will interrupt the supply of electric energy to the heating element 10, so that the heating element 10 stops heating, thus Can't work with inkjet
[0004] However, using the above-mentioned method for controlling the heating of the heating elements, if the number of heating elements is to be increased to increase the printing resolution and printing speed, it is necessary to increase the number of control contacts correspondingly to control each heating element separately, thus causing the inkjet chip ( Not shown) the overall area increases and its production cost must also increase
[0005] In addition, in order to achieve the purpose of reducing the control contacts, the control method of using N-MOS elements to design the operation of the heating element was born accordingly, but if the heating elements are to be further increased, the corresponding control contacts must still be added
Therefore, a control method using C-MOS components is proposed to solve the problem of increasing the area of the inkjet chip when the number of control contacts increases, but the manufacturing cost of C-MOS components is much higher than that of N-MOS components. Therefore, it is still not widely applicable
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[0053] 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 present invention can have various changes in different aspects, but none of them departs from the scope of the present invention, and the descriptions and illustrations therein are used as illustrations in nature, not to limit the present invention. invention.
[0054] see figure 2 , which is a schematic block diagram of an inkjet unit group in a preferred embodiment of the present invention. Such as figure 2 As shown, the inkjet unit group 2 of the present invention at least includes a first inkjet unit 21 and a second inkjet unit 22, wherein the first inkjet unit 21 receives a voltage signal P(1), a plurality of address signals A(n- 1), A(n) and A(n+1), for example, when n=2, namely address signals A(1), A(2) and A(3), and a selection signal C(1). The second inkjet un...
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The invention relates to an ink jet unit group which at least comprises a first ink jet unit and a second ink jet unit, wherein the first ink jet unit receives a voltage signal, a plurality of address signals and a selection signal; and the second ink jet unit receives the voltage signal and the address signals. When the selection signal is enabled, the first ink jet unit generates heating action according to the voltage signal and the address signals; and when the selection signal is disenabled, the second ink jet unit generates heating action according to the voltage signal and the address signals.
Description
technical field [0001] The invention relates to an inkjet unit group, in particular to an inkjet unit group suitable for a control circuit of an inkjet head. Background technique [0002] At present, in the development of inkjet printing technology, the best and most effective way to improve printing resolution and printing speed is to directly increase the number of heating elements, while the control of traditional heating elements is mainly through a single control contacts to control a single corresponding heating element. [0003] see figure 1 , which is a schematic diagram of a conventional circuit structure for controlling heating of a heating element. Such as figure 1 As shown, the heating element 10 is connected between the drive control terminal 11 and the switch element 12, and a voltage signal P is received by the drive control terminal 11, and the switch element 12 is connected between the control contact 13 and the ground terminal 14, and the control contact...
Claims
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IPC IPC(8): B41J2/05
Inventor 廖文雄余荣侯张正明戴贤忠
Owner MICROJET TECH