PrintersPrinters are the most commonly used and popular output devices. They provide information in a permanent readable from. They produce printed output of results, programs and data. Prints text or image on paper called hard copy. The printing speed of a printer is measured in pages per minute (ppm).Printer resolution is often measured in dots per inch (dpi). Show
Types of PrintersPrinters are classified into two categories according to printing technology ( working):
1. IMPACT PRINTERImpact printers these Printers use an Electro-mechanical mechanism. An impact printer refers to all those printers whose printing heads touch the paper. His mechanism uses hammers or pins to strike against a ribbon and paper to print the text or image. Types of Impact PrintersImpact printers are of two Types:
1.DAISY-WHEEL PRINTERS Advantages of a Daisy-Wheel Printer
Disadvantages of a Daisy-Wheel Printer
2.DOT MATRIX PRINTER
Disadvantages of a dot matrix printer
B) LINE PRINTERS Types of Line PrintersLine Printers are of two types
1.DRUM PRINTER 2.CHAIN PRINTER A chain containing characters is used for printing. The chain knows as print chain rotates very rapidly. With each link of the chain is character font. Magnetically driven hammers are there in each print position and all the characters which are to be printed are received by the printer through processor. When the desired character comes in the print position the hammers strike the ribbon and paper against the character thus it prints one line at a time. It is very noisy and its speed ranges from 400-24000 line per minute (LPM). 2. NON -IMPACT PRINTERThese printer uses ink and special electrical machines for producing outputs. Non – impact printers are all those printers whose printing heads do not touch paper. A non impact printer forms characters and image on a piece of paper without actually striking the paper. Types of Non -Impact Printers
1) LASER PRINTERS Advantages of Laser Printers
Disadvantages of Laser Printers
Disadvantages of Thermal Printers
Advantages of Thermal Printers
Disadvantages of Thermal Printers
Related Posts Also ReadWhich printer produces text and graphics on paper without actually striking the paper?Non-Impact Printer
It produces texts and graphics on paper without an ink ribbon hitting mechanism on paper. Examples of this type of printer are inkjet printer and laser printer.
What type of printer produces output without striking the paper?Difference between Impact and Non-Impact Printers:. How does an inkjet printer forms characters and graphics?In the inkjet printing mechanism, the print head has several tiny nozzles, also called jets. As the paper moves past the print head, the nozzles spray the ink onto it, forming the characters and images.
Which printer prints the text and graphics by striking on the paper?Dot matrix printers typically use a print head that moves back and forth or in an up-and-down motion on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like the print mechanism on a typewriter or line printer.
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