Fax Machines

When was the fax machine invented?


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2016-11-08 17:44:37
2016-11-08 17:44:37

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.


Related Questions

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

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

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.

The telephone predated the fax machine by many decades.

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.

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

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

The first fax machine was invented Alexander Bain in 1843.

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.

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.

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.

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

Alexander Bain Nicole S , FL

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.

Fax machine is the machine that send and receive fax, while fax modem is the gateway where the fax info passes each transaction.

a answer machine is to keep answers on there and its for when u dont answer the phone and a fax machine is for your fax

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.

Yes, a paperless fax machine will receive the fax digitally instead of just immediately printing it out.

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."

Feed the fax file in fax machine, dial the fax number then after a ring tone press send. Then Fax will be sent.

It can be if you have a 4 in printer with fax, but if it just a fax machine it not a printer, Most of the old fax machine only linked to the phone and not to a pc.

You use a fax machine! You use a fax machine!

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.

You cannot send an email to fax, whereas email is converted into fax files and send to fax machine. Use internet fax services like extremefax to send email to fax machine in a form of fax.

A fax free machine means that you can send a fax for free on the machine. An example of a fax free machine would be a computer with specialized software to send faxes.

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