A Printer is probably the most useful tool for the office or for your home. They are important as many jobs require you to print documents on a daily basis or because Many people have the need to print photos or other material for personal use. This article will introduce you to printing machines and will reveal what to look for, depending on your needs before purchasing.
Printers are peripheral output devices that can be connected to a computer system. There are many ways to connect a printer to a computer system but the most common way is with a USB cable. Printers have been designed to permanently print information such as documents and graphics. They have also been designed to support local and network connectivity meaning that when a printer is connected to a wired or wireless network more than one user can print at the same time. The necessary software is needed for a printing procedure to take place.
There are many types of printers the most commonly used printers are:
Laser Printers: Printing quality in combination with print speed was always a huge issue. Laser Printers where designed to resolve this issue having significantly improved speed and print quality. They use a laser beam that discharges a charged cylinder (drum). The drum is “sprinkled” with ink, toner powder. Then toner powder sticks only onto the drum part that is discharged by the laser beam. The drum is then pressed onto the paper sheet. The paper is heated so that the toner ink powder melts and solidified in order to remain permanently imprinted on the paper. Laser technology is constantly improving and there are now laser printers that can produce excellent quality colour printing even at very high speeds. The main disadvantages are the relatively large volume and high value for the purchase and maintenance.
Inkjet printers: Inkjet printers are considerably much cheaper to buy then a Laser printer and they are the Ideal buy for a home user. Inkjet printers are relatively lightweight and compact so you do not take up much desk space. They work by propelling droplets of ink onto the paper. The ink is released from small removable cartridges. If the inkjet printer is a colour printer then it can use two or more cartridges. Normally a black cartridge and three different colour cartridges. You can replace an entire cartridge or refill the cartridges with a refill kit. There are many High-end inkjet printers that are capable of producing good quality images when used with special paper. A major disadvantage is the cost of ink. An inkjet printer function over time is more expensive than a printer laser. Also Prints emerging from the printer are slightly wet and may need time to dry.
Dye-sub printers: Known also as dye (or ink) sublimation printers. They are used mostly for high-quality colour prints such as prints on plastic or canvas. They can be found in a photography studio or a high-end print shop. They are not used for printing documents or text. Their reputation over the past years has increased. There are two types of Dye-sub printers with the most common using colour film. The ink from the solid film is heated in order to transfer dye on to a printing surface.
Thermal Printers: Thermal printers are also known as direct thermal and are named after the thermo-sensitive paper they use. These printers and are mostly found at cash registers but can be also used for labels, barcodes etc. They contain a header that generates heat and prints once the colouring layer of the thermo sensitive paper surface is in touch. These are very old fashion looking printers but they are still used for specific tasks.
About Author: John is an IT professional working for the award winning digital Marketing and SEO agency Branded3. Also a site owner of simplelize.comand a guest blogger he loves to talk about the latest technology news.