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)
Windows Fax and Scan Windows Fax and Scan Windows Fax and Scan is an integrated faxing and scanning application included in some versions of the Windows Vista operating system and all versions of Windows 7, Windows 8 and Windows 10. Windows XP includes Fax Console instead. The software is not compatible with T.38 technology and cannot be used for internet faxes. With Windows Fax and Scan users with computers that have fax modems can send and receive faxes, and fax scanned documents. Without a fax modem, users can email scanned documents and forward faxes as email attachments from their computer. WFS supports one-click scanning