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Overview of inkjet printing technology

iezoJet) which means the 28-demand piezoelectric inkjet, so we referred to as the pressure EFI I ink. 1} piezoelectric inkjet technology is the use of voltage direct] factory conversion principle, shown in Figure 3, a mechanical force - called the BU will be the mechanical movement of the ink from the ink channel to \the drop-shaped Bacheng jet to the media image. V piezo inkjet technology can be divided into three categories: ring a total of 3 piezoelectric inkjet technology ① wall piezo technology (Shared technical hands circle WallPiezo) Total wall piezo technology is designed so that the two side walls in the same time as the relative direction of twists and turns, resulting in pressure to squeeze out the ink. Mexico 4 Total wall piezo technology circles indicate ring ② piezoelectric inkjet technology pusher ring 5 ring pusher plate piezoelectric technology to indicate putter design uses piezoelectric technology, made of bulk PZT piezoelectric material intensification of control combined with the ink chamber, piezoelectric intensify the pressure generated to release the ink. ③ crystal piezoelectric (CrystalJet) technology was designed crystal piezoelectric technology into the ink chamber ink, the piezoelectric crystal vibrating at high speed, resulting in mechanical electric field both from the ink channel side wall and the top of the ink squeeze out, forming the shape of the drop rule. 3.2 Characteristics of piezoelectric inkjet technology is based on ① mechanical action of the ink in the ink channel to \process, and thus form a relatively regular drop, no sputtering. ② drop size can be controlled, allowing users to choose the drop size. ③ opportunity to reduce corrosion, greatly improve the life of the nozzle, and can choose different chemical composition of ink. 3.3 The advantages of piezoelectric inkjet technology ① inkjet head to work at room temperature, thus greatly improving the nozzle life (up to thousands of hours). ② under pressure rather than under thermal inkjet, drop size can choose, shape comparison rules, drop small diameter, high resolution. ③ can choose a wider range of ink types, can dye and pigment ink, which achieved mainly in outdoor applications. ④ and thermal bubble inkjet technology compared to the overall low ink consumption. Printing speed ⑤ great potential, firing frequency up to 100KHz or more. 3.4 The disadvantages of piezoelectric inkjet technology ① total wall piezo technology, the adjacent channel can not launch jet; in putting piezoelectric technology, the ink-jet cross-channel interference is more serious. ② squeeze the piezoelectric crystal mechanical factors exist, simultaneously drop the nozzle into the process of re-filling, so the slow speed jet nozzle. In order to improve printing speed, you must configure a large number of nozzles, some number of inkjet printers has reached thousands of nozzles. To ensure normal operation of each nozzle must be controlled independently for each nozzle, so the control software is very complex. ③ the special structure of the nozzle, so that the distance between the nozzle and the media can not be too large (usually less than 0.5cm), thus limiting the type and quality of the media. 3.5 The main application of piezoelectric inkjet technology manufacturer Epson (Epson), California Photo (Calcomp) The company has a piezoelectric inkjet technology. RasterGraphicsPiezoPrint5000 application of inkjet printers is a total wall piezo technology. Roland, Jean Mimakijv1300 RolandCamJet and applications is putting Epson piezoelectric technology. California, USA Photo (Calcomp) the company's inkjet printer applications CrystalJet7042 and CrystalIet7054 is crystal piezoelectric technology. Like a turtle who voted meters wanted \This publication reported that domestic and international image technology, image and video materials, equipment, new developments, new equipment, new products, image evaluation. Reported the contents of new, authority, issued wide. Magazine's readers are mainly research, production, operation and application of imaging materials and equipment technicians, professionals, technology enthusiasts and the general image. \All are welcome to visit. Advertising Layout: front cover, inside front, inside back cover, back cover and insert the images within the text ads. Please contact \Address: Dongting Road, Hexi District, No. 20, Postal Code: 300220 Tel: (022) 88112801 Fax: (022) 88111380 E-mail: ydgg @ public. tpt. 1j. cn

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