Use of scanner

 USE OF SCANNER

'''INTRODUCATION;- '''

A scanner is a device that captures images from photographic prints, posters, magazine pages, and similar sources for computer editing and display. Scanners come in and flatbed types and for scanning black-and-white only, or color. Very high resolution scanners are used for scanning for high-resolution printing, but lower resolution scanners are adequate for capturing images for computer display. Scanners usually come with software, such as Adobe's Photoshop product, that lets you resize and otherwise modify a captured image. Scanners usually attach to your personal computer with a Small Computer System Interface ( SCSI ). An application such as PhotoShop uses the TWAIN program to read in the image. Different Types of Scanners A look at the different types of scanners available in the market today, and their advantages, disadvantages and uses. '                              MENNING OF SCANNER'' ''' A scanner is an electronic device that scans printed or handwritten text documents, images, or a particular object to convert them into a digital file format. Most of the scanners use CCD, (charge-coupled device) or CIS, (Contact Image Sensor) as the image sensors. The common types of scanners we see today are flatbed scanners, handheld scanners, sheetfed scanners, etc.

TYPES OF SCANNER

Flatbed Scanner A flatbed scanner is made up of a glass pane and a moving optical CIS or CCD array. The pane is illuminated with the help of bright light planted underneath it. The image which is to be scanned is then placed on the glass pane. The sensor and the source of light move across the glass pane to scan the document and produce its digital copy.

Sheetfed Scanner In sheetfed scanners, the document that is supposed to be scanned is fed into the horizontal or vertical slot provided in the scanner. The vital components of sheetfed scanner are the sheet-feeder, scanning module and calibration sheet. Such scanners are most often used to scan single page documents. It cant be used to scan thicker objects, like books, which turns out to be its major drawback.

Handheld Scanner A handheld scanner is a small manual scanning device which is moved over the object that need to be scanned. For instance, if a document needs to be scanned, the handheld scanner has to be dragged over the document. Using a handheld scanner can prove to be a cumbersome task, as the hand needs to be steady all the time. Slight movement of the hand can lead to distortion of the image. One of the most utilized handheld scanner is the barcode scanner, typically used in shopping stores to valuate goods.

Photo Scanner Photo scanners are mostly used to scan photographs. High resolution and color depth are the most vital requirements for scanning photographs, and photo scanner provides the same. If the motive of buying a scanner is to digitize film negatives and slides, then the photo scanner is the best option. They are specially designed to work on slides and negatives. The in-built software in some photo scanners can also help in cleaning old photographs.

Film Scanner A film scanner is utilized to scan photographic films directly into a computer. The photographer has direct control over certain aspects, such as cropping, ratio of original image on the film, etc. Some film scanners have specialized softwares through which it is possible to minimize scratches and improve color quality. Low-end film scanners most often accept 35 mm film strips while the high-end scanners have interchangeable film loaders which can accept 35 mm strips or 120 mm ones, or individual slides.

Portable Scanners Being small in size, portable scanners can be easily carried with oneself anywhere. Some scanners are as small as your PDAs, hence, can be easily carried in the pockets. Such scanners are useful for text document scanning. The drawback of these scanners is their limitation as far as resolution is concerned. They cannot be used for scanning photographs or other such applications which require high resolution scanning.

These were the different types of scanners being widely used today.

Use a scanner to save money and increase efficiency

A good scanner can help you speed up transactions, reduce paperwork, and archive all your important data. You'll be able to run flexible searches and find information within seconds.

. Here are some tips for getting the most out of a scanner 1 Save money and share documents right away By scanning in documents, you can share large files with colleagues and other offices and reduce your dependence on couriers and overnight mail. "

2 For high-powered jobs, get a business-class document imager Using a flatbed scanner to scan thousands of files will get old quickly. Instead, look for models with high-capacity automatic document feeders, duplex scanning (to scan both sides of a document at once), and fast conversion straight to searchable PDF files; PDF files lock documents into records that can't be altered. Products such as the Canon DR-2050c ($795) or the high-capacity DR-7580 ($7,560) are appropriate for these uses.

3 Use document management software to index, search, and save e-mail The software lets people search and access documents from a variety of locations and keeps the e-mail system from choking on a lot of large attachments, because people no longer need large PDF documents sent to them. It also helps save time later when someone's trying to find something important. Ostrowski's office leases "large Canon scanners with eCopy document management software," he said. "All we have to do to get legal evidence is go into the document management system and get paperwork we signed off on."

4 Scan business cards to save time If you travel to conferences a lot, you're bound to collect dozens of business cards at each one, which you later have to manually process. Save all that effort by getting a business card scanner, which can pull contact information into your primary address book, as well as save images of the front and back in case you like to take notes on the cards. Some desktop scanners have built-in business card scanners, such as the Fujitsu ScanSnap fi-5110EOX ($495). Other models are stand-alone, such as the Corex CardScan Executive 700 ($249), which can even integrate with your CRM solution.

5 Enable your employees and clients with remote access By scanning documents, you can also make them available to clients online. "Clients can actually see the documents involved in their case," said Ostrowski. He creates special external user accounts so that clients can log in remotely with a secure, password-protected connection. "In addition, a secretary can scan something into a PDF and put it in the document management system (discussed in step 3). Then our attorneys can view it from their Palm Treo 650s as a regular PDF file on the server [again with a secure link]. Attorneys usually work 24/7, so it's really nice to be able to view legal documents from anywhere."

6 Keep hard copies if you have to Not everything should be digital only. Sometimes, for legal or regulatory reasons, you need hard copies. "In our business, the accounting and legal file departments will always have backup hard copies, mainly for record keeping," Ostrowsk

use of scanner in news paper, magzine, ct scane and video.