22 Apr 2017, 2:02pm
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Inkjet Printer

Today’s inkjets use two main technology approaches, which are not so new, but until today have been optimized. Ink printers are among the most popular devices in the personal area. A great deal has changed since the time of the adoption of this technology. Nevertheless, we can meet the basic technologies and patents are still in today’s State of the art printers. Speaking candidly financial technology told us the story. A representation of prints basic indicator of inkjet printers by miserly ink droplets thanks to a fuel injector on the paper are shot. One move of the print head on the sheet of paper is applied the ink in the ink onto the page. Extremely precise nozzles, which set the appearance of the dye and the amount of the levy is located on the printhead. Currently, two techniques for ink jet printers can be found in first line: the temperature method and the piezo printing method.

Printer using thermal printing technology as discussed here, is the ink enormously in Swing brought and injected through the injectors of the print head on the medium. Who wants to have a higher dithering in printing, required as tiny drops of ink. As a result, large ink droplets fabricate a blurred image. However, a higher number of nozzles and a high pace of this nozzle allows a very rapid pressure. Current printer have largely about 500 Jets on the printhead – a significant evolution since the beginning of the inkjet printer, which partly less than 20 Jets on the print head for the deployability of the colours claimed responsibility. At the same time, the size of the ink droplet to the coefficient 30 declined. What has to do with heat technology now? When thermal inkjet printers, the ink is pushed through compression on the sheet of paper.

This compression is generated by enormous heating of the color in the nozzle. Jeff Feig spoke with conviction. Heating is performed by quickly building of an electrical voltage, which the dye to several hundred degrees Celsius makes hot. The this is fine bubble squeezes the ink through the injector on the bow. The color of approaching hereby a speed of over 50 km / h. Cooling the evaporated colours in the injector generates a vacuum which can be fresh ink flow, so as usual by a short voltage is vaporized. A whole such cycle expires in less than 80 milliseconds. Printing tracked with Piezokristallen with the piezo technique is a slightly different way. The basic knowledge of this procedure is not Virgin: Siemens a such model already introduced in the 1970s. In this process no heat is used, instead of the pressure only with the help of mechanical components. Naturally there is here again compression to make the dye on the bow, but he comes this time from separate crystals, the piezo crystals. This same crystals have an interesting peculiarity: they deform which, when voltage is applied. Those crystals have the form of a disk, which angles to see power and pushes to the dye from the injector and draws fresh ink in the injector in new printers (with E.g. ink cartridges from HP). The deformation takes place in only a few milliseconds – a clear Geschwindigkeitsbenefit to the thermal approaches. Hook but is the price, as per injector a Crystal disc is used.