Copying Machine

  The person we have to thank for the copying machine is an independent inventor by the name of Chester Carlson. Carlson was working for an electronics firm when he became aware of a serious problem - there were never enough copies of important papers available. To make a copy, they would have had to retype the entire article or had a photograph taken of it. The first way would take time and the second would have cost a lot more. His search for a quick and cheap way to make copies led him to the science of changes are brought about by means of electricity.

  Carlson began working in the kitchen of his New york apartment, and in 1937, at the age of 31, he took out his first patent on a copier. just one year later, he produced the first successful copy, using a dry printing process with a sulfur - coated zinc plate. At this point, you would think Carlson sold his machine and became a rich man. But it was not to be ... yet . For six years, he pounded the pavement, going from one major company to another with his invention, Every one of them turned him down! Then finally, Carlson's luck began to change, A research laboratory in Ohio agreed to back his work. They were soon joined by another company that saw some potential in this new machine. After developing the copies further, the towo companies, decided the world "electrophography" was not going to help them to shell thei product. So they invented a new world - xerog- raphy. It came from two Greek words. Xeros, meaning 'dry' and 'graphein' meaning 'to write', Xerox Corporation grew up and chester carlson deed in 1968 as a millionaire. Today, Xerox has over 40 different copying machines.