
1
YOUR NEW MACHINE

Fax Theory
Thank you for your purchase of this
Most people donÕt realize it, but the fax machine has been around in various forms since the time of the invention of the telegraph in the
A fax machine may appear complex, but in reality, modern fax machines are merely a combination of several very familiar machines.
First of all, faxing makes use of processes very much like an office copier. When you send a fax document to someone, the machine makes an internal copy of it (a facsimile, hence the term ÒfaxÓ), and converts that copy to electronic signals which we call ÒdataÓ. The data is then sent out over the telephone line as a series of audible tones. When you receive a fax from someone else, the copy process simply converts these tones from the telephone line back to data, and then to printed output.
Fax machines depend very much on telephone technology, since they must dial telephone numbers, answer calls, and exchange fax data (their version of ÒspeechÓ) over the phone line with other fax machines.
SEND-
DOCUMENT
TELEPHONE LINE
FAX DATA
RECEIVE-
DOCUMENT
Basic FAX Operation
To send a fax document, you tell the fax machine the telephone number to call by entering the number on a
1.6 CHAPTER ONE : YOUR NEW MACHINE