What Is Laser Printing?
Laser printers are common sights in any modern office because of its quality, speed and reliability. Laser printers cost more than traditional inkjet printers, but the price gap has closed in recent years. A properly maintained laser printer will last longer than a comparable inkjet.
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Function
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Laser printing uses a laser beam to project the page image onto a selenium-coated drum that is electrically charged. The charge is removed from the light areas on the drum by photoconductivity. Toner particles stick to the charged parts of the drum and are fused onto the paper through high heat.
Benefits
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Laser printing is much faster than standard dot-matrix or inkjet printing. High-speed monochrome laser printers can produce over 200 pages per minute. Color laser printers produce over 100 pages per minute.
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History
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The first laser printer was developed in 1969 by Xerox employee Gary Starkweather. IBM produced the first commercial laser printer in 1976.
Considerations
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Laser printers require ongoing maintenance and frequent toner replacement. The drum or fuser assembly may need repair or replacement after printing 50,000 to 100,000 pages.
Color laser printers
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Color laser printing uses cyan, magenta, yellow, and black colored toner (sometimes abbreviated as CMYK) to produce the image. Color laser printers require four times the memory of black and white printers because a page image must be stored for each color of toner.
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