Fax Cartridges
and Faxes
Facsimile (Fax) a method of encoding data, transmitting
it over the telephone lines or radio broadcast, and receiving
hard (text) copy, line drawings, or photographs.
A fax machine scans an image, whether it be text or a photo,
by reading a very small area of the image at a time. The
fax machine decides whether the area it is reading is light
or dark and assigns the area a number such as "0"
for white and "1" for dark. Then the fax transmits
the number to a remote facsimile receiver (usually via telephone
lines). The receiver makes a mark on paper corresponding
to the area on the original image.
This
process continues as the transmitting machine scans a series
of small areas horizontally across the image, and transmits
that information to the remote receiver. The transmitting
fax then scans the next lower line and so on until the entire
image has been scanned, digitized, and transmitted.
Although
fax machines have been around since 1843, it is only since
the 1980's that their use became widespread in businesses
around the globe. The success of fax machines is due to a
common standard being adopted around the world. Now, even
a lot of homes have fax machines, and the internet has failed
to make a dent in their use and sales. There is no easier
or quicker way to send an original document almost anywhere
in the world.
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