Answers.com > Wiki Answers > Categories > Technology > Computers > Computer Hardware > How do optical image scanners work?

How do optical image scanners work?

In: Computer Hardware [Edit categories]

Answer:

There are a few different types of image scanners, most modern ones use a charge-coupled device (CCD) or a contact image sensor(CIS) as the image sensor. In a flatbed scanner this sensor is mounted on an aparatus which moves the sensor across the page to scan the entire image. In a hand-held scanner the sensor is mounted in a drum which the user rolls across the page to scan the image.

First answer by Safic16. Last edit by Chewd. Contributor trust: 242 [recommend contributor ]. Question popularity: 17 [recommend question].

[report abuse]

Can you answer these Computer Hardware questions?

	What is a parallel peripheral device interface?	Answer it!
	What is random bus arbitration?	Answer it!
	What are some test equipment that is available for use in diagnosing and repairing communications?	Answer it!
	What was the role of Vinton Gray Cerf?	Answer it!
	Is it possible to mount 2 GPFS on single server?	Answer it!

Relevant answers:

How an optical scanner works?
A device that can read text or illustrations printed on paper and translate the information into a form the computer can use. A scanner works by digitizing an image -- dividing it into a grid of...
What does an image scanner do?
A scanner pretty much works like a copy machine, the main difference being, a scanner will convert the image into a digital format for electronic use. How do you acquire an image? Two options 1>...
How do scanners work?
Scanners have a glass plate and a cover. There is also a lamp used to illuminate the document. The scanner moves a mirror, reflecting the light across the document. The light is picked up by a simple...
How scanner works?
Ben likes boys. Becca likes girls
When was image scanner invented?
The first image scanner was invented 1997.