Inkjet Technology Revealed – inkjet, digital ink-jet – printing special printing
Present, the major inkjet printer manufacturers are targeting the market. Them through research and development of new technologies to enhance offensive, thus increasing the competitiveness of inkjet market to the level of technological competition, is no exaggeration to say that every new product, it means that there are one or more new inkjet technology come out.
Today, let us together take a look at the effectiveness of users has inkjet technology which excels.
Inkjet: Foam equally matched with the piezoelectric technology
The foundation for the inkjet printer is inkjet. Can be classified according to the principle of solid and liquid ink-jet ink of two, and liquid ink-jet printer main method is divided into foam-type and piezoelectric.
Foaming through the heating nozzle, so that Ink Bubbles, spray to the print media, printing technology is high temperature and pressure. Its working principle is: use of thin film resistors in the ink emitting area is less than 0.5% of the ink will be heated to form a bubble, bubble with extremely fast speed (less than 10 microseconds) extension opened to force the drops from nozzle. The bubble continue to grow the number of microseconds, then disappear back resistor. Bubbles disappear, then retracted the ink nozzles. Then the surface tension will produce suction, Pull new ink added to the ink emitting area.
The experiments show that the oily dye-based inks to print high-quality proofs. Foam inkjet technology is the use of water and oil mixed dye systems, whether used in home printers, or commercial printers can get good print quality. Ability to reduce the droplet emission region and integrated circuit cycle technology, the future use of this technology is expected to ink-jet printer ink droplets are smaller, higher frequency of emission drops. Low operating frequency, high nozzle numbers and print a single resolution, are essential elements of high-speed printing. Therefore foam inkjet technology can improve the printing speed, improve the efficiency of printers. Integrated circuit technology continue to make foam inkjet technology can continue to lower the costs, while optimizing the print process.
Present foaming nozzle print head number can reach hundreds or even thousands, with the hair of each nozzle diameter equal to the minimum capacity for the emitted droplet 4pl. Blue, and yellow ink products and the Motou often one will be a few small drops of color combination, can form dots of different sizes, resulting in a richer harmonic color and a smoother halftone , and the black ink Motou is separate.
Cartridges and ink because of the hot bubble to produce under pressure, the cartridges must be integrated with the nozzle structure, the replacement ink cartridges at the same time update the print head. In this way the user will not have to worry about plugging the nozzle. However, this also resulted in material cost is relatively expensive.
Using foam technology Motou long-term high temperature, high pressure work environment, nozzle corrosion serious, and prone to drops splash and spray nozzle blockage. In the print quality, since in the course of ink to be heated, while the high temperature, the ink is prone to chemical changes, the nature of instability, the color would be a certain degree of authenticity of the impact; other hand, since the ink bubbles exhaled by , ink particles the size of bad direction and volume control, easy to print lines the edge of mixed to some extent affected the print quality.
Present, with more foam technology products, mainly to the Canon and HP products.
Piezoelectric inkjet printing technology is normal temperature and pressure, is the many small piezoelectric print head nozzles placed near the piezoelectric ceramic under voltage variations at both ends with the extension or contraction of the characteristics of deformation, when the image Information voltage added to the piezoelectric ceramic, the piezoelectric stretching vibration to the image of information as the voltage change, make Motou of ink in a stable state of normal temperature and pressure, even accurately ejected ink.
Compared with foaming technology, piezoelectric inkjet technology with dot shape rules, no sputtering, ink dot size control, injection speed control, positioning accuracy, you can use more different chemical composition of ink corrosion opportunity to reduce the advantages of extended nozzle life, you can also use pigment ink, UV irradiation to prevent discoloration and fading caused by the phenomenon. The technology developed for piezoelectric ink, with the dissolution properties and quick-drying properties, can rapidly penetrate into the paper, can not afford to flash, not blooming, especially in the inkjet paper and glossy paper, print quality is very good.
Based on piezoelectric technology, the company developed the Micro Piezo print head technology (MicroPiezoTechnology), it drops more of control, using this technology the amount of ink ejected only usually 1 / 3 , the minimum can be 2pl, and particle shape of droplet is more rules, more accurate positioning, print resolution enhancement, easy to implement high-precision printing, and Micro Piezo ink jet need not be heated, the ink will not heat and chemical changes, reduce the demand for ink.
Produced using a piezoelectric inkjet print head technology costs are high, but due to the pressure in the Micro Piezo Motou smaller nozzle is actually replaced by the piezoelectric ceramic chips. Motou of the micro piezoelectric nozzle and the cartridge is the discrete structure, a nozzle can support multiple cartridges, replacement ink cartridges as long as the replacement, without having to replace the print head. Piezo technology course, inkjet printers Motou plug and had to waste a lot of ink cleaning Motou. Each replacement Motou, first of all to waste 30% of the ink to do Motou cleaning, each boot requires 2 to 3 minutes of washing, but also waste some ink. Gas devices require users to replace ink cartridges, also the remaining 17% to 25% of the ink.
Using piezoelectric inkjet technology is mainly Epson inkjet printers.
Foam technology and its advantages and disadvantages of piezoelectric technology, the market most inkjet devices based on these two technologies, but to improve inkjet printing and print speed, only the hard way in the jet is will not do. Still?? The drops make an issue of
Improve the quality of color ink-jet printing technology has gone through several phases: the first is the pursuit of the resolution; second stage is to some extent in the resolution of the future, in order to increase the level of the image in color, some products used to increase drops the number of ways to improve print quality; third stage is the use of tiny ink droplets.
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