TWI899793B - Inkjet chip circuit structure - Google Patents

Abstract

To cooperate with a nozzle structure in an inkjet chip for corresponding control, the present invention provides a novel inkjet chip circuit structure comprising plural control modules controlling an inkjet printing. The control modules include an electrical control resistor, a first power supply unit, a first power control unit, an addressing unit, a second power control unit, a second power supply unit and a heating unit. The first power control unit is coupled to the first power control unit and is controlled to be opened or closed by the first power supply unit. The addressing unit is coupled to the first power control unit and transmits addressing signals for controlling the required power provided for the inkjet printing. The second power control unit is coupled to the first power control unit and the electrical control resistor and controls the opening or closing of the second power control unit. The second power supply unit provides a second power require for the inkjet printing. The heating unit is coupled to the second power supply unit and heats up the ink required for the inkjet printing.

Description

Inkjet chip circuit structure

This case involves an inkjet chip circuit structure. More specifically, it involves an inkjet chip circuit structure that optimizes the corresponding nozzle configuration to improve existing printing requirements.

Inkjet printing technology, commonly known as "Inkjet Printing", is a widely used printing technology. Its history can be traced back to the 1950s when the British company Hewlett-Packard invented inkjet printing technology. Since then, inkjet printing technology has advanced rapidly, making inkjet printers the mainstream technology for home and commercial printing. Inkjet printers offer many advantages, including low cost, making them particularly economical for home and small business use; high print quality, providing high-resolution and high-quality images, especially for photographs and graphics; and convenience. Inkjet printers are easy to install, and most can print from computers or mobile devices. Combined with the recent rise of all-in-one office printers (including fax, photocopying, and scanning), these printers can rapidly expand the flexibility of office document processing.

Please refer to Figure 1, which illustrates the prior art method for pairing and controlling an ink cartridge 10 with a printer. In Figure 1, the ink cartridge 10 includes a flexible circuit board 100. Mounted on the flexible circuit board 100 is an inkjet chip 100A, which has ink supply ports and several circuit board contacts that correspond to the inkjet chip 100A and transmit printer control signals. The inkjet chip 100A stores information such as the ink cartridge serial number, ink type, and inkjet head-printer pairing information, and also controls the ejection of ink droplets for printing.

However, as mentioned above, while current inkjet printing technology can meet various output needs in schools, offices, 3D printing, and industry, the consumer market is increasingly demanding various inkjet printing performance requirements, such as color, resolution, print range, and print speed. The general industry still has a strong need to continuously pursue these inkjet printing performance requirements to maintain competitiveness. Therefore, given the current market situation, there is an urgent need to continuously improve and optimize performance such as print speed and print range, necessitating the corresponding redesign of inkjet chip printing circuits. In view of this, the aforementioned needs have become the subject of this invention.

The primary objective of this project is to provide an inkjet chip circuit structure that coordinates with the optimized nozzle structure within the inkjet chip to provide corresponding control, thereby improving the color, resolution, print range, and print speed performance of finished products in inkjet printing technology. The detailed technical solution is described below.

To achieve the above objectives, the present invention proposes a novel inkjet chip circuit structure, which includes: a plurality of control modules to control inkjet printing, the plurality of control modules further having: an electrical control resistor; a first power supply unit; a first power control unit coupled to the first power supply unit, and controlled by the first power supply unit to turn on and off the first power control unit; an addressing unit coupled to the first power control unit, and enabling the first power control unit to control the transmission of the first power by transmitting an addressing signal; a second power control unit coupled to the first power control unit and An electrically controlled resistor controls the activation and deactivation of a second power control unit by a first power and an address signal; a second power supply unit is coupled to the second power control unit and supplies a second power required for heating the ink; and a heating unit is coupled to the second power supply unit and heats the ink required for inkjet printing. When both the first and second power control units are activated, the heating unit begins to heat the ink required for inkjet printing by the second power. The inkjet chip circuit structure controls a printing range between 23,900 μm and 27,000 μm.

According to the present invention, the inkjet chip circuit structure includes more than 600 inkjet holes.

According to the present invention, the inkjet chip circuit structure further includes a first grounding unit and a second grounding unit, which are respectively coupled to the first power control unit and the second power control unit to provide power protection for the grounding of the inkjet chip circuit structure.

According to the present invention, the electrical control resistor included in the inkjet chip circuit structure is coupled to the first power control unit, thereby adjusting the current and voltage of the first power according to application requirements.

10: Ink cartridge

100: Flexible circuit board

100A: Inkjet Chip

200: Inkjet chip structure

200A: Ink supply port

210:Nozzle hole

300: Inkjet chip circuit structure

310: Control Module

311: First power supply unit

312: Heating unit

313: First power control unit

314: First grounding unit

315: Addressing unit

316: Second power supply unit

317: Second power control unit

318: Second grounding unit

R: Electrically controlled resistance

The detailed description of the present invention and the schematic diagrams of the embodiments described below should provide a more complete understanding of the present invention; however, it should be understood that these are merely references for understanding the application of the present invention and are not intended to limit the present invention to a specific embodiment.

Figure 1 illustrates the configuration of the inkjet chip structure in a conventional ink cartridge.

Figure 2A illustrates one embodiment of the detailed structure of the inkjet chip structure used in the present invention.

Figure 2B illustrates one embodiment of the present invention, showing a further magnified detailed structure of the inkjet chip used in conjunction with the present invention.

Figure 2C illustrates another embodiment of the detailed structure of the inkjet chip structure used in conjunction with the present invention.

Figure 2D illustrates another embodiment of the present invention, with the detailed structure of the inkjet chip structure further magnified.

Figure 2E illustrates another embodiment of the detailed structure of the inkjet chip structure used in conjunction with the present invention.

Figure 2F illustrates another embodiment of the present invention, showing a further enlarged detailed structure of the inkjet chip.

Figure 3 illustrates the circuit structure of the inkjet chip in the present invention.

Figure 4 illustrates the circuit structure of the inkjet chip in the present invention.

This invention will be described in detail with reference to preferred embodiments and viewpoints so that readers can fully understand how these embodiments are implemented. However, those skilled in the art should understand that this invention can also be implemented without these details. In addition, this invention can also be used and implemented through other specific embodiments. The details described in this specification can also be applied based on different needs and various modifications or changes can be made without departing from the spirit of this invention. Therefore, this invention will be described with reference to preferred embodiments and viewpoints. Such descriptions are for explaining the structure of this invention and are only for illustration and not for limiting the scope of the patent application of this invention. The terms used in the following description will be interpreted in the broadest reasonable manner to be used in conjunction with the detailed description of a specific embodiment of the present invention. Furthermore, when describing directions, such as longitudinal or transverse, unless otherwise defined in this specification, the relative directions of longitudinal or transverse should be understood based on the description and the accompanying drawings and context. This allows those skilled in the art to adjust the structure of the present invention to meet actual industry needs based on manufacturing or application requirements. This is forewarned.

Referring to Figures 2A, 2B, 2C, 2D, 2E, and 2F, in the present invention, to achieve the aforementioned purpose of improving printing performance, the inkjet chip circuit structure 300 of the present invention is used to control an inkjet chip structure 200. The plurality of nozzles 210 on the surface of the inkjet chip structure 200 form a double-row parallel nozzle structure as shown in Figures 2A and 2B (the double-row parallel nozzle structure is on the same Y axis, allowing the left and right rows of nozzles 210 to print twice at the same printing point, resulting in a bright and saturated print color), a double-row staggered nozzle structure as shown in Figures 2C and 2D, and a double-row staggered nozzle structure. structure (the double-row staggered nozzle structure can make the printed color bright and saturated), or the single-row nozzle structure as shown in Figure 2E and Figure 2F; wherein the double-row parallel nozzle structure, the vertical distance between the two longitudinally adjacent nozzles 210 in a single row is 80μm-90μm, and the double-row staggered structure, the vertical distance between the two longitudinally adjacent nozzles 210 in a single row is 80μm-90μm. The vertical distance between two adjacent laterally staggered nozzles 210 is 40μm-45μm. In the single-row nozzle structure, the vertical distance between any two longitudinally adjacent nozzles 210 in the single row is 40μm-45μm. Furthermore, in the aforementioned embodiments, the width of the ink supply holes 200A is greater than 80μm.

In order to effectively control the inkjet chip structure 200, please refer to Figures 3 and 4. The present invention proposes a novel inkjet chip circuit structure 300, which includes: a plurality of control modules 310, thereby controlling inkjet printing, and the plurality of control modules 310 further have: an electrical control resistor R; a first power supply unit 311; a first power control unit 313, coupled to the first power supply unit 311, and controlled by the first power supply unit 311 to turn on and off the first power control unit 313; an address unit 315, coupled to the first power control unit 313, transmitting an address signal to control the supply of power required for inkjet printing; a second power control Unit 317 is coupled to the first power control unit 313 and controls the on/off of the second power control unit 317 using the first power. The second power supply unit 316 is coupled to the first power control unit 313 and supplies the second power required for heating the ink. The heating unit 312 is coupled to the second power supply unit 316 and heats the ink required for inkjet printing. When both the first power control unit 313 and the second power control unit 317 are turned on, the heating unit 312 begins to heat the ink required for inkjet printing using the second power. The inkjet chip circuit structure controls the printing range of the inkjet chip 300 to be between 23,900 μm and 27,000 μm.

According to an embodiment of the present invention, the inkjet chip circuit structure 300 operates as follows: when an address signal is inputted through the address unit 315 and a first power is inputted through the first power supply unit 311, and the first power is a relatively high voltage, the first power control unit 313 will be turned on. At the same time, the first power in a high voltage state will be transmitted to the second power supply unit 311. Control unit 317, and if the second power supply unit 316 also provides a second power at this time, and the second power is also a high voltage, then the second power control unit 317 will also be in a conductive state, so that the heating unit 312 obtains the energy for heating the ink and the inkjet printing signal, and starts to heat the ink, causing the ink to be squeezed and ejected from the nozzle 210 due to the generation of bubbles. When the first power supply unit 311 does not provide the first power (or the first power is not a high voltage), the first power or address signal is not transmitted to the second power control unit 317 via the first power control unit 313. Furthermore, because the second power control unit 317 is connected to the electrical control resistor R, the second power supply unit 316 does not conduct when the first power supply unit 311 does not provide the first power (or the first power is not a high voltage) or when the first power control unit 313 does not receive an address signal.

Referring to FIG. 4 , according to one embodiment of the present invention, the plurality of control modules 310 may form an array having two rows, S1 and S2, within the inkjet chip circuit structure 300, corresponding to the more than 600 nozzles 210 contained in the inkjet chip structure 200. This array facilitates a routing layout that is spatially aligned with the nozzles 210 on the inkjet chip structure 200, effectively improving printing quality. In the embodiment of the present invention, S1 and S2 can correspond to the double-row parallel structure of the nozzles shown in Figures 2A and 2B, thereby controlling the nozzles 210 in the left and right rows respectively, the double-row staggered structure of the nozzles shown in Figures 2C and 2D, thereby controlling the nozzles 210 in the left and right rows respectively, or the single-row structure of the nozzles shown in Figures 2E and 2F, thereby controlling the nozzles 210 (1st, 3rd, 5th, etc.) from top to bottom respectively, and The even-numbered nozzles 210 (2nd, 4th, 6th, ...) from top to bottom should be noted that the left and right rows or even-numbered nozzles 210 corresponding to S1 and S2 are merely examples and are not intended to limit the present invention. After reading the present specification, those skilled in the art can adjust the nozzles 210 corresponding to S1 and S2 or the arrangement of the control module 310 in the inkjet chip circuit structure 300 according to the above description and application requirements. This is described here. According to one aspect of the present invention, each of the two rows S1 and S2 has a corresponding first power supply unit 311 providing the corresponding first power. This allows for odd-even control of two rows of nozzles 210 in the aforementioned left-right dual-row parallel structure, dual-row staggered structure, and single-row nozzle structure, as well as a single row of nozzles 210. For example, when A _m addressing unit 315 provides an addressing signal (e.g., m = 15), P _n second power supply units 317 provide the second power (e.g., n = 20), and S _x first power supply units 313 provide the first power (e.g., x = 2), 15 * 20 * 2 = 600 nozzles 210 can be controlled. Alternatively, when m=20, for example, n=15, x=2, 20*15*2=600 nozzles 210 can be controlled. This is merely an example, and those skilled in the art can adjust the structure of the present invention to meet actual industry needs based on manufacturing or application requirements.

According to the present invention, the inkjet chip circuit structure 300 further includes a first grounding unit 314 and a second grounding unit 318, which are respectively coupled to the first power control unit 313 and the second power control unit 317 to provide power protection for grounding the inkjet chip circuit structure 300.

According to the present invention, the inkjet chip circuit structure 300 further includes an electrical control resistor R coupled to the first power control unit 313, thereby adjusting the current and voltage of the first power according to application requirements.

According to the present invention, the inkjet chip circuit structure 300 can support a resolution DPI (Dots Per Inch) ranging from 150 to 48,000 DPI.

In summary, the primary objective of this application is to provide an inkjet chip circuit structure that controls the corresponding inkjet chip structure. By optimizing the routing of the inkjet chip circuit structure and coordinating the spatial arrangement of the nozzles on the inkjet chip structure, the overall performance of printing, such as color, resolution, print range, and print speed, is further improved to meet the increasingly stringent market demands and meet the requirements of industrial utilization. The application is filed in accordance with the law.

300: Inkjet chip circuit structure

310: Control Module

311: First power supply unit

312: Heating unit

313: First power control unit

314: First grounding unit

315: Addressing unit

316: Second power supply unit

317: Second power control unit

318: Second grounding unit

R: Electrically controlled resistance

Claims (5)

An inkjet chip circuit structure, suitable for controlling an inkjet chip structure, includes:          a plurality of control modules, controlling the inkjet printing of a plurality of nozzles, the plurality of control modules including:                 an electrical control resistor;                a first power supply unit;                 a first power control unit, having a first end, a second end, and a third end, the first end being coupled to the first power supply unit, and the first power supply unit controlling the opening and closing of the first power control unit;                   an addressing unit, coupled to the second end of the first power control unit, transmitting an addressing signal to control the supply of power required for inkjet printing; a second power control unit having a first end, a second end and a third end, the first end of the second power control unit being coupled to the third end of the first power control unit and one end of the electrical control resistor, the other end of the electrical control resistor being coupled to a first ground unit, the third end of the second power control unit being coupled to a second ground unit, and the second power control unit being controlled to be turned on and off by the first power; a second power supply unit being coupled to the second power control unit to control the turning on and off of the second power control unit; and a heating unit being located between the second power supply unit and the second power control unit, and being coupled to the second power supply unit and the second end of the second power control unit to heat the ink; When the first power control unit and the second power control unit are both turned on, the heating unit starts to heat the ink, and the printing range controlled by the inkjet chip circuit structure is between 23900μm and 27000μm, and the surface of the inkjet chip structure is provided with a plurality of nozzles controlled by the inkjet chip circuit structure, and the arrangement of the plurality of nozzles is selected from a double-row parallel structure of nozzles or a double-row staggered structure of nozzles;          The plurality of control modules form a two-row array arrangement in the inkjet chip circuit structure to optimize the routing of the inkjet chip circuit structure. The inkjet chip circuit structure as described in claim 1 further includes a first grounding unit and a second grounding unit, which are respectively coupled to the first power control unit and the second power control unit to provide grounded power protection. The inkjet chip circuit structure as described in claim 1, wherein the plurality of nozzles controlled by the inkjet chip circuit structure is more than 600. The inkjet chip circuit structure as described in claim 1, wherein the left row of nozzles and the opposite right row of nozzles in the double-row parallel nozzle structure are printed on the same printing point, so that the printed color is bright and saturated. The inkjet chip circuit structure as described in claim 1, wherein the resolution DPI range that the inkjet chip circuit structure can correspond to is between 150 and 48,000 DPI.