A printer is a computer peripheral that can produce text or graphics printed on physical paper. The first consumer printers were limited to printing text only. These early printers evolved from teletype machines and electric typewriters. Because they used typewriter technology like daisy wheels, only they were only able to print text. With the invention of dot matrix printers, it became possible to print graphics as well as text. Dot matrix printers could produce pictures composed of tiny dots, in a way similar to how pictures are printed in newspapers. Consumer printers have come a long way since those early days. With technology such as color laser printers, people can produce professional level printing by themselves at home. A quality printer can last quite a long time. A good printer might last through several computer upgrades. The only real cost of maintenance is replacing printer cartridges for ink or toner. Here is some more information about different types of computer printers.
Inkjet Printers
Inkjet printers are some of the most common printers used by consumers. An inkjet printer will have ink cartridges with liquid in inside of them. The ink cartridges come in either color or black ink. The inkjet printer will spray tiny droplets of ink onto the paper to produce a printed page. An inkjet printer can create a very wide range of colors by mixing color ink droplets together, or it can print in black and white by using the black ink. Inkjet printers can produce excellent results, even printing photographs with the use of special photographic paper. They are also relatively inexpensive, making them the most common type used by consumers.
Laser Printers
Laser printers use high-tech methods to produce extremely high-quality printing. Laser printers are also able to print pages very fast compared to inkjet printers. The laser printer will have toner cartridges inside with either color or black toner, which is basically like powdered ink. Inside the printer there is a drum. Laser LEDs are used to negatively charge the drum with the image that is to be printed. The drum then picks up the positively charged toner powder. By feeding the blank paper through the printer, the image is transferred to the paper from the drum. This produces the printed pages. Laser printers can produce very high-quality images. They are also somewhat expensive compared to inkjet printers. For this reason, laser printers are not as commonly used by general consumers. Laser printers are more common than other types in businesses.
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