Thermal Bubble Technology of Inkjet Printers
The so-called hot-bubble printing technology was invented in the late 1970s, inspired by the principle of the syringe. The hot bubble technology is to let the ink pass through the fine nozzle, under the action of the heating resistor, a part of the ink in the nozzle pipe is vaporized to form a bubble, and the ink at the nozzle is ejected to the surface of the output medium to form patterns or characters..
So this inkjet printer is sometimes called a bubble printer. The nozzle made by this technology is relatively mature and low in cost, but because the electrodes in the nozzle are always affected by electrolysis and corrosion, it will have a lot of influence on the service life. Therefore, the print heads using this technology are usually made together with the ink cartridge (independent color ink cartridges are separated from the ink cartridge and the print head), and the print head is updated at the same time when the ink cartridge is replaced. In this way, the user does not have to worry too much about the problem of clogging of the nozzle. At the same time, in order to reduce the cost of use, some people will refill the ink cartridges with professional inks with lower cost.
The disadvantage of hot-bubble technology is that the ink will be heated during use, and the ink is prone to chemical changes at high temperatures, and its properties are unstable, so the authenticity of the printed color will be affected to a certain extent; When the bubbles are ejected, the directionality and volume of the ink particles are difficult to grasp, and the edges of the printed lines are easy to be uneven, which affects the printing quality to a certain extent.
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