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A printer will produce a hard copy of any document from your computer. Printers can use paper, transparencies and other media. Printers can be connected using a cable or wireless connection. Network printers will have networking interfaces so that many different computers can connect to one printer. Many times individual printers can sometimes be used to support network connections.

A printer can be connected to your computer or laptop using a USB connection or parallel pot. Most printers also have a wireless connection options. Network printers are used for many different computers that are all connected to one printer.

There are also versions of printers that will connect directly to memory sticks, image capture devices and memory cards. There are also multiple function printers that also have photocopy functions, a fax machine and scanner. These combination printers go by the name of multifunction printers, all in one printers and multi-function devices.

The way that the document is printed also varies. Laser printers and ink jet printers are the two most common types of printers. Ink jet printers will apply the ink directly to the paper using inkjet heads or a fabric ribbon. With this type of printing the ink penetrates deep into the paper making these documents very difficult to alter. Laser printers use solid inks or toner and the ink does not penetrate the paper so these documents can be altered easily.

Laser printing works using the xerographic principle which is also the main function behind photocopying. Toner is applied to a light sensitive drum and then an elective charge is needed to transfer the toner onto the paper. Then heat and pressure ensures that the toner sticks to the paper. Laser printers are very popular because they have low cost per copy (only for black and white), produce high quality printouts and can print very fast.

Solid ink printers are used for printing on non-porous material such as transparencies. The ink for this comes in sold sticks like wax. It is melted and then travels through the ink jet heads.

There are several types of inkless printers such as thermal printers. These printers are used on gasoline dispensers, old fax machines, ATMs and cash registers. Special heat sensitive paper is needed for these to work.

Matthew Kerridge is an expert in electronic products. If you would like further information about varieties of printers or are searching for a reputable printer retailer please visit http://www.ebuyer.com

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