Laser printers works in the same manner as copy machines. A laser beam creates electrical charges that attract toner to from an image and transfer it to paper. Laser printers come in a variety of sizes, generally the large and faster the priter, the more expensive it is. Large laser printers used on mainframes and minicomputers where high-quality graphic output is required. Small, "personal" laser printers are suitable for home use. The laptop needs to have a built-in infrared transmitter installed, but no cable or no wires are required. Hewlett-Packard recently brought out of a wireless printer.
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