Apparatus for interfacing a conventional facsimile machine with a PC enabling the use of the facsimile machine as a scanner or printer. A first switch assembly selectively couples the PC modem and facsimile machine either to independent telephone lines in a normal mode or to one another in a scan/print...http://www.google.com/patents/US7489423?utm_source=gb-gplus-sharePatent US7489423 - Interface circuit for utilizing a facsimile machine coupled to a PC as a scanner or printer
