A printer is a hardware output device that prints a hard copy of any document. It accepts input commands that are sent from other software programs or on other devices to print the desired document on paper or some other material such as a plastic card. The speed of a printer can be measured in terms of the number of pages printed per minute. This is usually a factor when buying a new printer.
The invention of printing was one of the Four Great Inventions of ancient China. Its early development was influenced by the availability of a woodblock press, which could produce 2,000 books per day. This allowed Confucian classics, Buddhist scriptures and dictionaries to be printed in quantity for the first time. It was probably Marco Polo or other Silk Road travellers who saw this technology in China and brought it to Europe, inspiring Johann Gutenberg to develop European movable type printing.
Modern printers are able to be connected to one or more computers by either USB or wirelessly over a Wi-Fi network. One of the most important features of a printer is its ability to use different media, including different types of ink and paper. It is recommended to choose a printer that supports the types of media you will be using frequently.
The most common printers are inkjet and laser. Inkjet printers are inexpensive and can be used to print text, images and photos. They are often not very reliable and it is necessary to keep extra ink cartridges on hand. Laser printers cost more but are more reliable and produce high quality images. They can also be used to print on plastic cards for access control, photo personalization and sports and public transport tickets. Plotters are another type of printer that can be used to draw vector graphics on a flat sheet such as steel, aluminum, plastic or plywood.
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