Micro Piezo Technology

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The Same Technology Underpins All Epson Inkjet Printing Systems

Printers known for excellent environmental performance, superior efficiency, and versatile media support

Epson's inkjet printing technology is used in home, office and industrial printers.

Since our printing systems form images by directly depositing microscopic droplets of ink on sheets of paper or other media, they generate virtually no waste ink, are far superior to current analog and laser printing systems in terms of the environment and efficiency, and can theoretically print on almost any medium.

Micro Piezo technology is the backbone of every Epson inkjet printing system. One of Epson's core technologies, Micro Piezo technology features Epson's unique Micro Piezo printheads combined with complementary technologies in image processing, ink systems, ink, media, and precision mechanisms such as paper feeders.

Micro Piezo Printheads

See how Micro Piezo printheads work.

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Micro Piezo printheads eject droplets of ink via mechanical pressure. This mechanical pressure is created when piezoelectric elements in the printheads contract in response to an applied voltage.

Two main characteristics set Epson's technology apart from other inkjet printing systems. The first is that Micro Piezo printing systems do not use heat to eject the ink droplets. The second is that they precisely control the volume of ink contained in each ink droplet.

Advantages of Micro Piezo Printheads

Ink compatibility

Unlike thermal inkjet systems, Micro Piezo systems do not use heat, which can alter the ink's material properties. Epson's Micro Piezo printheads are thus compatible with a far wider variety of inks, including dye inks, pigment inks, eco-solvents, UV-cured ink, and a variety of other materials. We at Epson are exploiting this advantage by expanding our lineup of printers for a wide range of applications, such as the printing of posters, billboards and signs, textiles, labels, and much, much more.

Moreover, given that there are few limitations on the types of materials that Micro Piezo systems can deposit as long as the materials are liquid, Epson is conducting research and development with an eye toward extending the breadth of future applications.

High durability

Micro Piezo printheads are extraordinarily durable because they are not subjected to heat-induced functional deterioration. They are fully equipped to withstand use even in grueling, high-volume office printing applications and applications in industries where usage conditions are harsh.

High image quality

Epson uses VSDT (variable size dot technology) to precisely control the volume of ink contained in individual ejected droplets.
Sharp, rich, virtually grain-free images are rendered by depositing spherical ink droplets in a range of sizes, the smallest being as little as 1.5 pico-liters, or one one-trillionth of a liter, in precisely the amounts and locations needed.

In addition, meniscus control prevents ink left in the ink chambers in the printhead from affecting the shape of ink droplets that are to be ejected, ensuring that ejected droplets are always perfectly spherical and land with high positional accuracy.


VSDT, which controls the size of up to 50,000 ink droplets that are ejected every second, also contributes to fast printing speeds.

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