The ink-jet printer has a high scientific and technological content, and its parts are very precise. The correct use and operation of the printer plays an important role in reducing the probability of printer failure and extending its service life.

The ink-jet printer turns the color liquid ink into fine particles through the nozzle and sprays them onto the printing paper. Some ink-jet printers have three or four print nozzles to print yellow, magenta, cyan and black; Some of them share a common nozzle, which is divided into four colors.