Docstoc

How_To_Choose_A_Barcode_Scanner_

Document Sample
How_To_Choose_A_Barcode_Scanner_ Powered By Docstoc
					How To Choose A Barcode Scanner?

Word Count:
487

Summary:
Barcode scanners are light emitting devices that are used to read
barcodes. Usually attached to a computer or laptop via PS2 or RS-232, the
data collected is stored on a computer for processing or storage. It is
now used in many different industries such as retail or production.


Keywords:
Barcode, Barcode scanners, Barcode scanner Reviews, Barcode Scanner
Software, Barcode Scanner Types,Bar Codes, Barcode Generator, Hand Held
Barcode Scanner, How Barcodes Work, Industrial Barcode scanners, Wireless
Barcode scanner, symbol barcode scanner, zebra barcode scanner


Article Body:
Barcode scanners are light emitting devices that are used to read
barcodes. Usually attached to a computer or laptop via PS2 or RS-232, the
data collected is stored on a computer for processing or storage. It is
now used in many different industries such as retail or production.

They have been on the market for many years now with new versions of
barcode scanners available every year. The prices can vary from as low as
$50.00 to as high as several thousand dollars. So how do you pick a good
barcode scanner?

To answer that question, it is important you know there are 2 major
classes of barcode scanners, image-based and laser-based. Image-based
barcode scanners use a camera usually embedded in a barcode scanner. The
camera will capture the images and then processed by complex image
techniques to decode the barcodes. Laser-based barcode scanners uses
mirrors and lenses to read the barcodes.

Laser barcode scanners are usually more expensive than image-based
scanners. They have their own pros and cons. An image-based barcode
scanner do not have internal movable parts therefore are more resistant
to drops or knocks than laser barcode scanners. Also, image-based barcode
scanners have a shorter scanning distance (4 to 10 inches) compared to
laser barcode scanners. On the other hand, laser scanners are more prone
to wear and tear due to their lenses. They not only have a longer
scanning distance (up to 24 inches) but also are able to scan from a
wider angle from the barcode.

Be aware that the scanning distance for both image-based and laser
barcode scanners have already improved dramatically over the years and I
wouldn’t be surprised if a barcode manufacturer claims an image-based
scanner has a scanning distance of 24 inches.
Here are some questions you need to ask yourself before getting a barcode
scanner. The size of scanner required? Type of environment the barcode
scanner will be using (outdoors, shop, warehouse)? The scanning distance
required? Are they to be used hands free or hand-held? Your budget?

So my suggestion is if you need a barcode scanner for long range
scanning, get a laser barcode scanner. For short range scanning, use an
image-based barcode scanner such as a CCD barcode scanner. The
environment as I asked earlier also plays an important part. If the
barcode scanner is being used outdoors or in rugged environments where it
is expected to take a drop or knock or two, then it is best to get an
image-based barcode scanner. If it were for example being used in a
retail shop, then a laser barcode scanner would be the best choice.

There are such a wide variety of barcode scanners available that I just
can’t explain completely in this article. If you are in doubt, consult
the barcode manufacturers such as symbol or metrologic who have sales
consultants who are able to do an analysis of the type of barcode
scanners needed by your business.

				
DOCUMENT INFO