Fax Fax Fax (short for facsimile), sometimes called telecopying or telefax (the latter short for telefacsimile), is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device. The original document is scanned with a fax machine (or a telecopier), which processes the contents (text or images) as a single fixed graphic image, converting it into a bitmap, and then transmitting it through the telephone system in the form of audio-frequency tones. The receiving fax machine interprets the tones and reconstructs the image, printing a paper copy. Early
Black fax at major corporations now means that black faxes are unlikely to cause problems for them. On the other hand, the ability of computer modems to send faxes offers new avenues for abuse. A program could be used to generate hundreds of pages of highly compressed, pure black – or huge volumes of relevant-looking, original, non-repeating high-black-density junk, just as effective but far more difficult to counteract – and send them very quickly to the target fax machine. Black faxes and fax loops are similar (in both intention and implementation) to lace cards. Black fax The term black fax refers to