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How S

CANNERS

All scanners convert areas of light and dark into

digital data for your computer. One of the most

versatile scanners for general office use is the

flatbed scanner. Scanning an image on a flatbed

scanner is a lot like using a photocopier. Here's

how it works:

You place your document (a photo, book, or any

image that you want to scan) face-down on the

glass and close the cover.

Using the scanner software, you select a few

simple settings to adjust the way the image will

be captured; then you scan the document.

Inside the scanner, a light bar moves over the

image and the reflected light falls on a bed of

photosensitive cells. The cells "read" the image,

interpreting it as a series of tiny dots. Each dot

is called a pixel, or picture element. The carriage

scans one line of pixels at a time.

The software converts the values of each pixel into

data that the computer can understand. When the

entire document is scanned, the resulting image

appears on your monitor.

You can print the image as it appears on-screen

or you can manipulate it with image editing or

graphics software to get the results you want.

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