explain the type of printer
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Following are some examples of impact printers.
Dot-Matrix Printers.Daisy-wheel printers.Line printers.Drum printer.Chain printers.Band printers.Ink-jet printers.Laser printers.
Dot-Matrix Printers.Daisy-wheel printers.Line printers.Drum printer.Chain printers.Band printers.Ink-jet printers.Laser printers.
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Laser Printers
A laser printer is a toner-based computer printer that uses a laser beam to produce an image on a drum, which then electrically attracts powdered toner to the paper to form an image. Laser printers tend to make crisp black-and-white prints very quickly and accurately, especially text. Laser printers use a disposable toner cartridge, much like a photocopying machine. Black-and-white laser printers use one toner cartridge, while color laser printers can either use one cartridge for all colors or separate cartridges for each color that can be replaced individually as the need arises. The resolution of laser printers can be much higher than those of ink jet printers---ranging from 1200 DPI on consumer models all the way up to 2400 DPI for professional machines---which makes for very crisp and clear text and line art. Color prints of photographs can be made with color ink jet printers, however the quality of high-end ink jet printers tends to be much smoother and more lifelike.
Dot Matrix Printer
An old stalwart in the realm of personal computers, the dot matrix printer continues to be utilized in homes and small businesses due to its rugged durability and low cost of use. Images are applied to paper by a print head that strikes the paper through a ribbon embedded with ink—much like an old fashioned typewriter. The print head transfers one line of text or one thin slice of a graphic at a time, using an array of little dots to assemble the print, and it moves back and forth across the page while advancing the paper little by little until the printing is complete. The paper used in dot matrix printers tends to come with removable edges that are perforated with a line of little holes that are used to advance the paper as it prints. While the quality of the printing delivered by dot matrix printers is not as high as that of ink jets or lasers, many of the latest dot matrix printers come with a Near Letter Quality feature that overprints words until they appear crisp and clean. These printers are noisy, however, and not nearly as fast as the other printers.
A laser printer is a toner-based computer printer that uses a laser beam to produce an image on a drum, which then electrically attracts powdered toner to the paper to form an image. Laser printers tend to make crisp black-and-white prints very quickly and accurately, especially text. Laser printers use a disposable toner cartridge, much like a photocopying machine. Black-and-white laser printers use one toner cartridge, while color laser printers can either use one cartridge for all colors or separate cartridges for each color that can be replaced individually as the need arises. The resolution of laser printers can be much higher than those of ink jet printers---ranging from 1200 DPI on consumer models all the way up to 2400 DPI for professional machines---which makes for very crisp and clear text and line art. Color prints of photographs can be made with color ink jet printers, however the quality of high-end ink jet printers tends to be much smoother and more lifelike.
Dot Matrix Printer
An old stalwart in the realm of personal computers, the dot matrix printer continues to be utilized in homes and small businesses due to its rugged durability and low cost of use. Images are applied to paper by a print head that strikes the paper through a ribbon embedded with ink—much like an old fashioned typewriter. The print head transfers one line of text or one thin slice of a graphic at a time, using an array of little dots to assemble the print, and it moves back and forth across the page while advancing the paper little by little until the printing is complete. The paper used in dot matrix printers tends to come with removable edges that are perforated with a line of little holes that are used to advance the paper as it prints. While the quality of the printing delivered by dot matrix printers is not as high as that of ink jets or lasers, many of the latest dot matrix printers come with a Near Letter Quality feature that overprints words until they appear crisp and clean. These printers are noisy, however, and not nearly as fast as the other printers.
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