Piezoelectric technology (The heart of printer today). Easy to print on paper or print better photos

At first, printing machinery used for printing text or images by the method of heat or thermal energy systems. So, do not be surprised when we were kids first, sent to a photo-copy shop then we will get in the paper-photo-copy it will have a high temperature, as if we were at that time holding a warm paper. In fact, not warm at the beginning of the paper, but because the flow of ink that has dripped hot and dripped onto the paper.

Indeed, during the last 20 years has been much progress regarding the printing press. Many world famous companies in charge of printing problems just call it like Epson, Canon, Hp and others have spent time to look for new ways of printing methods. And finally, was found a replacement method of thermal systems, the piezoelectric method.

Thus, the notion of Piezoelectricity is a phenomenon occurs a coulomb force applied to a slab of material that causes the electrical charge on the surface of the plate material due to the proficiency level of coulomb force due to electric charge distribution in the crystal cells. Thus, the plate will be distributed to form crystals. Piezoelectric charge coefficient values ​​in the range 1-100 pico coloumb / Newton. 

History says that, piezoelectric materials are materials discovered by brothers Pierre and Jacques Curie. They found the material was first in the 1880s. Wherein said piezo means pressure, so that the piezoelectric effect occurs when the electric field is formed due to mechanical pressure to the plate material. 

Jacques and Pierre Curie combines the knowledge of the pyroelectric (the ability of certain materials to generate an electric potential when the materials are heated or cooled) with an understanding of the structure and behavior of a crystal in the crystal tourmaline, quartz, topaz, and salt Rossel. From experiments it was found that the salt crystals and quartz piezoelectric Rossel showed the greatest ability at that time. At the time of the electric field through the material, the polarized molecules will adjust to the electric field, generated by the induced dipole of the molecule or crystal structure of the material. Molecule would result in material adjustments to change the dimensions. Phenomenon known as electrostriction.

Thus, the piezoelectric material is a material that produces an electric field when subjected to mechanical strain or pressure. Conversely, if the electric field is applied, then the material will experience a mechanical strain or pressure. The concept is applied in the printing press is when a material having or given electric field, then the material will experience a strain (Mechanical pressure) makes, each atom will be scattered. As if the slab was fired and break down into crystals, and the phenomenon that occurs.

In the 1990s, many people use the printing press with ink or inkjet (the term at the time) that uses a thermal method, with the use of piezoelectric method cetap engine can be optimized. Moreover, the print quality is not inferior to using inkjet printouts. And coupled with the mold through the piezoelectric method is more robust, so there was little chance the paper will have faded due to be held.

The development of piezoelectric material is not only in the areas of the printing press, one of them in the field of electronics. Because we know that if given a piezoelectric material mechanical pressure will form an electric field so that the use of piezoelectric materials can be applied in a sensor or transducer. This material can be applied in many ways. Piezoelectric materials on the market one of them was a thin sheet which is called the PVDF films. PVDF film applications in the sensor allows the use of the area.