laser printer : Computer Hardware Buyers’ Glossary

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laser printer

Laser printers work by a Xerographic dry toner process similar to a copier.
The advantages of lasers are:

They are fast. Laser printers for the home market typically print from 4 to 8 pages a minute. Faster ones are used by businesses.
The copies do not smudge.
The printer is reasonably quiet.

The disadvantages of lasers are:

They print in black and white only, though some offer toner in other colours for a little variety — blue, brown or green. Even then it prints in one colour of ink only. You can’t run the paper through more than once to get spot colour. The previous ink would gum up the innards.
The prices of print cartridges/print drums can sometimes be a shocking surprise.
The heater in the printer that fuses the toner to the paper uses up quite a bit of power, even when the printer is idle.

Ideally a laser printer would print both sides at once, saving paper and doubling the speed. However, such printers are not yet available for the home market. What is available in the Hewlett Packard Laserjet 2200dse which prints 19 pages a minute. Unfortuately its printing speed is halved rather that doubled in duplex (two-sided) mode. It costs $800.00 USD

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Risograph

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