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Fax machines send and receive information using a telephone line. Digital fax transmission and reception, using a scanner and printer connected by modem to the public switched telephone network. Diagram of a computer laser printer showing the printing process: a laser beam creates an image on a rotating drum, attracting toner particles, which are then transferred and fused onto paper as it moves through rollers. Key components and steps are labeled. The telephotography machine, an early analog fax machine introduced in 1924. The digital Group 3 fax machine, introduced in 1980.
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fax: References & Edit History

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Type Description Contributor Date
Invalidated site: American Scientist - Fax and Context. Feb 18, 2020
Removed table. Aug 28, 2018
Add new Web site: American Scientist - Fax and Context. Feb 11, 2016
Article revised and expanded. Jan 09, 2009
Article added to new online database. Jul 20, 1998
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