Fax machines use data network.
The main way to get the documents to the fax software is by scanning. Usually you have an option of either using dedicated fax software to automate the scanning and faxing process, or you can use a third party program to do the scanning and then load the images into the fax software.
Modern fax machines use scanned documents to transmit text.
Photocopiers, fax machines, franking machines, computers, coffee machines, shredders, scanners and others.
Voice
Network-connectable fax machines can be obtained and function much like a network printer, with added input for recipient data. A networked fax machine will typically come with its own fax software for use by the client when sending a fax from their network.
Fax machines can be hooked up to your regular phone line. The disadvantage of this is that your line will be busy while sending or receiving a fax.
I used fax machines before, but it is very uncomfortable, now use <a href="http://www.popfax.com> Popfax </a> which is an internet fax and does not require a fax machine and it is much easier.
Most of today's fax machines have some sort of computer processor, which rely on mathematics.
Many people and companies still use fax machines. A great place to go to find out about the different brands would be a place like Staples or Office Depot.
The idea behind a virtual fax is to enable business to send email faxes without the use of a fax machine. This helps to reduce the cost for fax machines, fax services and long distance fees.
Scanning means a quick look over of an item. Many use machines that scan codes at the check out which tells what the cost of a item is.