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The FAX machine as we know it is an outgrowth of wire photo machines of 1920's and 1930's. Same principle. After that was weather fax which is also sent by shortwave to ships today. In all these an original drawing (weather map, newspaper, etc. or a B/W photo) was set on a drum. This was sent to spinning and a tightly focused beam of light was aimed at the item at one end. A synchronizing signal (usually based on 60 Hz power line frequency) was sent and then the light was moved down as the drum was spun, using gears that made picture scan in a fixed speed. A TV picture is produced in a similar but much faster method - the lines are painted across screen then moved down and across, etc. by a beam of electrons hitting the florescent screen. On the old style FAX (facsimile transmission) the light reflected off the paper and hit a photo cell. This generated a weak electric signal - more if white area was lit, less if dark area was lit. This was amplified and was caused to modulate at one. This was decoded at end and drove a lamp that was aimed at photo paper or sensitive flimsy thermal paper or a stylus and carbon paper to reproduce the image.

Flat bed scanners of today have the light fixed side to side, but moves down the paper to give best light where the pickup photodiode is scanning at the moment. The paper orig. document is fixed, while the photo cell is moved and scanned. The light/dark areas produce more or less light and this is converted to digital number stream, which then modulates a multi-tone modem and off it goes down the phone line. The earliest FAX like device was developed soon after the vacuum tube was invented and became generally available in the 1920's.

I have read of crude, experimental devices in lab work even earlier. This was just before the earliest crude TV system was developed (separately) by Dr. Lee De Forest (the inventor of the first amplifying vacuum tube - the triode - which enabled the entire electronics world; his last lab assistant was one of my mentors) and Philo Farnsworth out in the High Plains (ND?) in the 20's and early 30's. TV was broadcast in late 30's in a very limited way around NYC and a few large cities just before WW2. Radio, radar and electronics advances in WW2 brought the explosion of TV as we know it in early 50's.

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Actually, the first fax machine was invented in 1842 by Alexander Bain who patented it in 1843. It consisted of a pendulum moving across that created an electric signal to another pendulm in sync with the first one that transmitted the signal to chemically treated paper.

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Q: When was the fax machine invented?
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Related questions

What improvments does the fax machine have now compared to when it was first invented?

What improvments does the fax machine have now compared to when it was first invented in 1843What improvments does the fax machine have now compared to when it was first invented in 1843


Where was the fax machine invented?

in fax land


When was the telephone fax machine invented?

The first fax machine was invented by Scottish mechanic and inventor Alexander Bain. In 1843.


What was invented first telephone or fax machine?

The telephone predated the fax machine by many decades.


Who invented a fax machine?

The "original" version of the fax machine was invented by Alexander Bain. The first "fax service" was put into place by giovanni Caselli. Xerox is generally credited with the "modern day" fax machine in the 1960s.


Who imvented the fax machine?

If you mean who invented the fax machine,well its Alexander Bain a Scottish Mechanic. It was in the year 1843 he received a patent for his fax machine.


What was the date fax machine was made?

Fax machine was invented by Scottish physicist Alexander Bain in 1846.


Who discovered fax machine?

Fax machine was invented by a Scottish Physicist named Alexander Bain in 1846.


Who invinted the fax?

The first fax machine was invented Alexander Bain in 1843.


Who invented the fax?

Alexander Bain invented the fax machine. The trend in faxing today is internet fax service where fax are sent and received as email attachment in PDF or TIFF formats.


Where was the first fax machine invented?

The first version of what we could consider a"fax machine" (the ability to send an image over an electrical connection) was invented in 1843 by Alexander Bain.


Was the person who invented the fax machine British?

Yes. The person that invented the fax machine was British. Alexander Bain invented it in 1843 in England. At that point, it was only two pens connected to a pendulum that connected to a wire.


Who invented fax machine first?

Alexander Bain


What is dedicated fax machine?

Dedicated fax machine is the main fax machine that can be configured to where the fax will be receive and support extension fax machine.


Who invention the fax machine?

The "modern" fax machine as we know it today was invented by Xerox in the mid 1960s. The original fax machine, that was able to send an image electronically over a wire, is credited to Alxeander Bain. Giovanni Caselli is also known for putting the first fax service in place.


Who invented fax machine?

Alexander Bain is credited with inventing the first fax machine. He received British patent 9745 for the facsimile unit in 1843 for "automatic electrochemical recording telegraph."


Who invented the 1904 fax machine?

Alexander Bain Nicole S , FL


Differences between a fax modem and a fax machine?

As nouns the difference between fax and printer is that fax is fax (machine) while printer is one who makes prints.


When fax machine was invented in Australia?

Australia would have seen a similar unit today's fax machine sometime in the 60s. Before then there may have been services similar to a fascimile service but not compatible with today's fax machines.


When was the Xerox Telecopier fax machine invented?

Hi guys I worked for Rank Xerox from 1970 till 2001. I can't directly answer the question, but I can tell you that in the late 1970s we were using a fax machine (I think the 485) which was the first machine I recall.


Who invented the modern fax machine?

According to Wikipedia, in 1964 Xerox introduced and patented Long Distance Xerography, and 2 years later a model that resembled today's fax machine emerged on the market.


What did the first fax machine that was invented in 1843?

The first fax machine (or machine that could send an image over an electronic wire) was a set of timed clocks that relayed a signal between them. There wasn't much distance covered, but the principle worked. Later versions of a fax-like machine worked on similar principles.


When was the first fax machine invented?

First, "Fax" is simply military shorthand for, "Facsimile (fack-simm-uh-lee). The Scot, Alexander Bain, invented the facsimile machine in the year 1843 using the technology of Samuel F.B. Morse, who had invented the telegraph machine a few years earlier. The first fax machine was created by Alexander Bain, an inventor from Scotland. He received a patent for his invention in 1843, before the telephone was invented. Though this was more than 100 years before it became a part of every day life.


What year did the fax machine get invented?

1843 was the year that an image was able to be transmitted over an electronic signal - a similar process to today's fax. By about the time the US civil was was ending, there was an image transmisison service running between Paris and Lyons. The "modern" fax machine was invented in around the mid 1960s by Xerox.


How did fax machines effect people in the 1950's?

The fax machine for the telephone was not invented until the 1960s. It was first marketed by the Xerox Corporations in 1964.