Optimum Print Quality Using Original Epson Inkjet Print Head

Epson Artisan 50 Color Inkjet Printer
Epson is unique among major printer manufacturers in using Micro Piezo print heads that use piezo elements to emit ink. This unique Epson technology is unlike competitors' thermal-type print heads that heat ink in order to generate bubbles and fire it onto the paper. In Epson printers, an electric signal is sent to the piezo elements placed above each nozzle on the print head, and ink droplets are fired according to the force generated by the change in shape of these elements. This technology allows precise control of the piezo elements, which in turn means precise control of ink droplet size - and fantastic print quality. And while the use of thermal energy degrades the print head, environmentally conscious Micro Piezo print heads are fixed to the body of the printer and guaranteed for the life of the printer. On the other hand, thermal-type print heads do not stand up to repeated use, and a new print head has to be attached to each cartridge. When the ink is fired from the nozzles on an Epson Micro Piezo print head, new ink is supplied to the head from the ink cartridge. Supplying ink to the print head is fundamental to how the printer works, and it is important to prevent air bubbles from entering the print head. If air bubbles enter the print head, the pressure exerted by the piezo head to pull the ink is absorbed by the air bubble and is not transmitted to the ink reservoir in the cartridge.
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