How to use a Scanner
Posted on June 24, 2008
A scanner is an electronic device that forms a digital representation of an image for inputting in a computer. There are two main types of scanners, the Flatbed and the Sheetfed. Flatbed scanners are used to scan paper, books, photos etc. a Sheetfed scanner can scan only flat things as they have to be inserted inside a slot in the machine to scan it.
Nowadays mostly the flatbed type of scanner is used. Some scanners scan automatically as soon as the document to be scanned is placed inside. Others start only when the Start or Scan button is pressed. Once the software that comes with the scanner is stored in the computer, a Scan icon appears in the screen. If this does not happen, then the start is chosen manually by choosing the file on the desktop and then clicking on “Acquire”.
Before scanning, most of the scanners give the option of seeing a preview of how it would look once it is actually scanned. This helps to know if the document is placed in a correct position before scanning, so that one would not have to waste time on an incorrectly scanned document.
There are also facilities of setting the resolution for scanning. Higher the resolution, greater would be the space occupied in the PC. This depends on the place that scanned document is to be used. The resolution can be set to 100 dpi (dots per inch) for documents to be shown in computer screens. If the document is to be printed with an inkjet printer, then a resolution of 200 dpi is required.
Some scanners have preset options for colour, grey scale etc. Some also offer to change it as per one’s choice. A Grey scale can be used when a pencil sketch is to be scanned. For printed text that does not use different colours, a Line Art is used. If a black text is to be scanned, then it’s better to choose the pre defined settings in the scanner.
Try using all the features in a scanner to know more about each type, as if one feature is not liked, then simply deleting the scanned document would not take much time, whereas this would help one understand the scanner more and also have a bit of fun while working!
Read buying tips for scanners, Canon, Epson Scanner Reviews at scannerguide.co.uk.
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