Tuesday, June 15, 2010

Scanners technology

Scanners
Scanners are one of the important computer accessories in the modern offices. A scanner is an output device. This hardware is connected to the computer to take out the digital prints of images and text documents. Since its invention, scanner technology has grown leaps and bounds.
If you have a photo or document on paper and you want its digital copy, it is the job of a scanner to provide you that. Once you get a digital copy of that particular photo or document, you can print it, copy it or send it anywhere in the world.
Features of various types of scanners are more or less same. What makes them different from search other is the quality of digital print they deliver. There are scanners which produce absolutely flawless copies of the print. However, the better is the quality of print produced; more is the cost of the scanner. You can, however, adjust the quality of scan according to your needs.
Having a scanner is very beneficial for ordinary people or home office owners. You can produce you own photographs at home using the photo quality paper. You need not go to the local store to get your photos developed. In addition, you can preserve you important documents using scanning technology. And the most important use is the ability to send your scanned photographs and documents anywhere in the world via email or fax within no time.
There are standalone scanners and built-in scanners with printers. Standalone scanners are more powerful and deliver high-quality scans. If you want to save space and have convenience, go for the scanners incorporated with printers. These scanners provide you convenience of getting hard copy and digital copy at the touch of a single button.
There are many kinds of scanners depending upon their technology and design.
Flatbed scanners are the most common and most versatile kind of scanners. These are also called as the desktop scanners. Sheet fed scanners look like and work like flat bed scanner with few differences. In this scanner, paper is moved and scan head remains immobile. Handheld scanners also use the same technology as the flatbed scanner but these are very small. User moves it to the point where scanning is to be done. It is used mostly in shops and stores for scanning labels on the products. Drum Scanners are sued in publishing industry. It can scan images of high quality with reliability. It works on the photomultiplier tube technology.
If you want to purchase a scanner, choose it carefully according to your requirements.Canon, Hewlett-Packard, Epsom and Dell are the reputed companies offering good quality scanners.