Fax hard to operate. In 1966, Xerox released the Magnafax Telecopiers, a smaller, 46-pound facsimile machine. This unit was far easier to operate and could be connected to any standard telephone line. This machine was capable of transmitting a letter-sized document in about six minutes. The first sub-minute, digital fax machine was developed by Dacom, which built on digital data compression technology originally developed at Lockheed for satellite communication. By the late 1970s, many companies around the world (especially Japanese firms) had entered the fax market. Very shortly after this, a new wave of more compact, faster and efficient fax machines
Junk fax that time. However, by the late 1990s, junk faxing had once again become a widespread problem in the U.S., with the entry of a number of large-scale fax broadcasters who boasted of the capacity to send millions of fax advertisements per day. Because the legal restrictions of fax advertising are more widely known today, junk faxes are now predominately used in connection with disreputable or fly-by-night marketers. The Telephone Consumer Protection Act of 1991 (47 USC 227), or TCPA, among other things specifically outlawed junk faxing: The TCPA also requires a fax transmitter to identify the source phone number and