Maintenance and Troubleshooting c o n t i n u ed
How a Fax Works
Facsimile is a system of sending printed or other graphic information from one location to another by producing a copy or “facsimile” of that information at the remote location. A fax unit transmits audio tones over the same telephone lines you use for
The facsimile process involves three basic steps :
1.Reading and converting the document into electronic signals (audio tones).
2.Sending, or transmitting, the signals through a telephone system to another fax unit.
3.Converting the received signals into a
“ f a c s i m i l e ” o f the | transmitted |
document. |
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This is a simplified explanation of the actual facsimile process. Although all fax units operate by this same basic process, specific operating procedures differ from unit to unit.
About Facsimile Compatibility
The CCITT (Consultative Committee for International Telephone and Telegraph), which sets worldwide standards for data
communication, classifies facsimile devices into three groups. The grouping is based on how a fax unit sends information, in what form, and at which speed.
To simplify, you can think of fax units as being grouped by speed: Group 1 includes
Your FX505 is compatible with CClTT G3 mode units.