Selective 3D printer huge size 3D printing machine

Different laser printers have different printing functions, but their working principles are basically the same. They all go through seven processes: charging, exposure, development, transfer printing, power elimination, cleaning, and fixing, five of which are around the photoreceptor drum. When the text or image to be printed is input into the computer, it is preprocessed by computer software. Then, the printer driver is converted into a print command (printer language) that can be recognized by the printer and sent to the high-frequency drive circuit to control the opening and closing of the laser transmitter to form a dot matrix laser beam. Then, the sensitive drum in the electronic imaging system is axially scanned and exposed through the scanning rotating mirror. The longitudinal scanning is realized by the rotation of the sensitive drum itself.

The laser printer was born out of the laser phototypesetting technology in the late 1980s and was popular in the mid-1990s. It is a print output device that combines laser scanning technology with electronic photography technology. Its basic working principle is that the binary data information transmitted from the computer is converted into video signal through the video controller, and then the video signal is converted into laser drive signal by the video interface/control system. Then the laser scanning system generates a laser beam containing character information, and finally the electronic photography system makes the laser beam image and transfer it to the paper. Compared with other printing devices, laser printers have the advantages of fast printing speed and high imaging quality; However, the use cost is relatively high.