Black fax to harass large institutions or government departments, to retaliate against the senders of junk faxes, or merely as simple pranks. The basic principle of a black fax can be extended to form a "black fax attack." In this case, one or more sheets are fed halfway through the sender's fax machine and taped end to end, forming an endless loop that cycles through the machine. Not only can solid black be used, but also images which will repeat endlessly on the receiver's machine until its toner runs out. The introduction of computer-based facsimile systems (combined with integrated document imaging solutions)
Junk fax the fax advertising rules of the TCPA. The new rules: (1) codify an established business relationship (EBR) exemption to the prohibition on sending unsolicited fax advertisements; (2) define EBR as used in the context of unsolicited fax advertisements; (3) require the sender of fax advertisements to provide specified notice and contact information on the fax that allows recipients to “opt-out” of any future transmissions from the sender; and (4) specify the circumstances under which a request to “opt-out” complies with the Act. The new rules took effect in August 2006. The federal TCPA permits state junk faxing laws that are