Color laser printer
A laser printer generates an image on a piece of paper by scanning a focused laser beam over a cylindrical photosensitive drum, the signal directed to the laser beam for each pixel controlling the length of time which the laser beam is on. The drum converts the laser power incident on the drum to electrostatic charges, and the electrostatic charges attract and retain a toner. When an electrostatically charged paper is rolled against the drum, the toner is transferred to the paper, and the paper is then heated to fuse the toner to the paper. The laser radiation is modulated to create the correct density of each spot, pixel by pixel. The laser spot is scanned in the line direction, and the media is moved in the page direction to create a two dimensional image. Color printing by laser printer is achieved by scanning a digitized image onto a photoconductor using lasers. Such a printing process is known as electrophotographic printing. Color laser printers implement an electrophotographic process for recording and registering a multi-color image on an electrophotographic surface or a print medium, such as paper. Color laser printers develop an electrostatic latent image formed on a photosensitive body with toner in a powder state, transfer the developed image onto paper, heat and press the transferred image, and fuse the heated and pressed image on the paper. In color image development, the formation of the latent image and the development are repeated for each color (yellow, magenta, cyan, black). The developed image is transferred to a medium such as paper, a film, etc. directly or via an intermediate image transfer body. Image data representing each primary color plane and generated in a personal computer are sent to the laser printer, which converts the image data to binary electrical signals that represent the dots forming the image.
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