Series Dot Matrix Character Non - Impact Printer Classification

Series dot matrix character non - impact type printer, mainly ink-jet type and thermal printer.

Ink jet printer. The most widely used printer. The basic principle is that the charged inkjet spray point after the electrode deflection, directly on the paper to form the required glyph. Its advantage is the composition of characters and images of the dot is much smaller than the needle dot matrix printer, so the character point resolution is high, high quality and clear. Character size and font can be changed flexibly and conveniently. Ordinary paper is used for printing, and the typewriter can be used to print words directly on certain products. There is no mechanical wear during the formation of characters and graphics, and the printing energy consumption is low. Printing speed up to 500 characters per second. The widely used charge controlled (high pressure) and random ink-jet (negative pressure) ink-jet technology, the emergence of dry ink-jet printing technology.

Thermal printer. The heat generated by the pulse current through the resistance at the printhead is transmitted to the heat-sensitive paper, where it is heated and discolored to produce characters and images. The main features are noiseless, light and small structure, clear print. Disadvantages are slow speed and poor handwriting preservation.

Linear dot matrix character non - impact printers mainly laser, electrostatic, magnetic and light - emitting diode printers. Laser printer. Laser beam from the laser source via the character dot matrix information control of acousto-optic deflection modulated, into the optical system, through the polyhedral prism to transverse scan of rotation of the drum, and so on the optical thin film layer on the photosensitive drum characters or images of the electrostatic latent image formation, after development, transfer and fixing, then get the required character or image on the paper. The main advantage is high printing speed, up to 20,000 lines/min above. High quality printing, low noise, can use ordinary paper, can print characters, graphics and images. Due to high printing speed, macroscopically, just like printing a page at a time, it is also known as a page printer. Electrostatic printer. The pulse voltage is directly applied to a special paper with a dielectric material to obtain latent electrostatic images on the dielectric, which are developed and heated to form characters and images. It is characterized by high printing quality, indelible handwriting, long-term preservation, low power consumption, noiseless, simple and reliable generation of latent image. But special paper is needed and the cost is high. Magnetic printer. It is the application and development of electronic copy technology. Using magnetic medium to form character latent image, does not need high power laser source, its advantage is not sensitive to humidity and temperature change. Printing speed up to 8000 lines/minute. Simple structure and low cost. Led printer. The working principle is similar to that of a laser printer, except that the light-emitting diode is used as the light source. The cost and power consumption are reduced by using led.