Epson Ribbon Cartridge Information
Working of printers
Printer is a common and useful device nowadays and most of us have used it for printing our documents but only few people know that how the printer works. There are two types of basic printers Impact and Non-impact. As the name showing the impact printers touches the paper while printing. Small pins are used to strike on a ribbon coated with ink to print the image on the paper. Some other impact printers work like a typewriter such as character printer.
A series of bars or a ball with actual characters on them works for printing. These bars strike on the ink ribbon to print the character. Only one character can be printed at a time. Another kind of printer (Daisy Wheel Printers) uses a plastic or metal wheel. These kinds of printers are useless for graphical user interface. After some time another printer came in existence called line printer in which a chain of pins prints a line. This printer was much faster but not good in quality.
Some efficient printers came in existence after sometime and a new technology was used in them. These are non-impact printers which never contact the paper while printing so these are much faster than impact printers. The inkjet printers introduced in decade of 1980 which is the most popular printer till now because it can print in colors. The working of inkjet printers is very complicated and inkjet printer cartridges are used for printing. Tiny nozzles of its head place tiny droplets of ink on the paper for printing. These dots are such small that diameter of our hair is bigger than it.
The laser printer is the latest printer and it is the fastest also because it is based on principal of static electricity which states that it can be built on an insulated object. Oppositely charged atoms of objects are attracted to each other and cling together. Laser printer uses toner cartridges for printing. These are very costly but efficient printers. Laser printers use toner (dry ink), static electricity and heat to create an image on the paper.
For printing any documents we simply give command for that. But when we give print command the information goes to the printer through RAM. Then the printer starts working. While printing computer remains free and can perform other operations because the printer uses the part of memory only not the computer processor. We can give many print commands in a line printer takes next job after completing previous.
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10 Pack of Compatible printing ink toner ribbon cartridge (4 black and 2 for each
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