What is the working principle of the inkjet printer of on-demand inkjet technology

There are three types of cij printers with on-demand inkjet technology, piezoelectric inkjet technology, pressure valve inkjet technology, and thermal foaming inkjet technology. Each has different working principles. Then let the inkjet printer come and explain to you one by one. 1) Piezoelectric inkjet technology: piezoelectric cij printer is also called high resolution inkjet printer or high resolution cij printer. On the integrated nozzle, 128 or more piezoelectric crystals control the nozzle plate respectively. Through the processing of the CPU, a series of electrical signals are output to each piezoelectric crystal through the drive board. The piezoelectric crystal deforms, so that the ink is ejected from the nozzle and falls on the surface of the moving object. Dot matrix to form text, numbers or graphics. Then, the piezoelectric crystal returns to its original shape, and new ink enters the nozzle due to the surface tension of the ink. Because of the high density of ink dots per square centimeter, the application of piezoelectric technology can print high-quality text, complex logos and barcodes and other information. 2) Solenoid valve type inkjet printer (large character cij printer): The nozzle is composed of 7 or 16 groups of high-precision intelligent micro valves. When printing, the characters or graphics to be printed are processed by the computer motherboard. The output board outputs a series of electrical signals to the intelligent micro solenoid valve. The valve opens and closes quickly. The ink is ejected into ink dots by the constant internal pressure, and the ink dots form characters or graphics on the surface of the moving printed matter. 3) Thermal foaming inkjet technology: TIJ for short, uses a thin film resistor to heat less than 0.5% of the ink in the ink ejection area to form a bubble. This bubble expands at a very fast speed (less than 10 microseconds), forcing ink droplets to eject from the nozzle. The bubble continues to grow for a few microseconds, then disappears back to the resistor. When the bubble disappears, the ink in the nozzle retracts. Then the surface tension will generate suction. The above is the main points of the printer manufacturer in this issue. If you have anything else you want to know, please go to the official website of the printer http:/// leave a message and tell the editor.

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