History of copiers , copier was invented. The company's patent attorney PR Mallory and Co Inc. named Chester Carlson, who completed a Bachelor in Physics. And worked as a research engineer at Bell Telephone Laboratories before turning to work as a patent attorney at the patent office. Which is causing him to make copies of documents and a lot of duplication in those days, but not to make copies of documents. And still can not make copies quickly enough, such as using carbon paper. Direct imaging with a camera. And bringing the document to a typist reprinted here makes Chester idea was that these offices. Certainly appreciate If there is a tool to copy accurately and quickly. So he spent the evening immersed in the library for months. To learn about reproduction as much as he can find. After studying previous research. His research found that the interest of the Hungarian physicist named Paul Selenyi that the image generated by static electricity. (Electrostatic image), using some materials that conduct electricity better when light is incident. To prove such research, he and his assistant, the German physicist Otto Kornei. The pilot sulfur coating on a zinc plate. After that, contrary to ESD zinc plate with a handkerchief. Then the thin glass sheets that typing "10-22-38 ASTORIA" put on a zinc plate. Later closed all channels light. So that the environment is dark as much as possible. And emits light from the lamp onto a glass plate for a moment. Then pull out a sheet of glass Live Cattle Depot Stadium and throws powder on the sulfur coating powder Live Cattle Depot Stadium, gently blow them out gently. The result is powder Live Cattle Depot Stadium, some mounted on a surface similar to the text on a sheet of glass. Then he makes the text appear permanently grafted to the paper. And heating Wax melts and absorbs the ink from the paper zinc sheets stuck on the paper. The first copy of the disc was born on October 22, 1938 or when 76 years ago he led the patented process and techniques. And presented to various companies To develop a product that actually works. The results show that the company is not interested at all in the six-year period (AD 1939-1944) by more than 20 companies rejected the proposal includes two giant companies like IBM and General Electric when he felt discouraged. rejected several times, but did not stop to offer other companies. The research institute Battelle Memorial Institute, a non-profit was interested. And a contract to develop his invention, later in 1947, the Institute Battelle Memorial Institute have signed a development contract with the Haloid company copier manufacturer and supplier of printing paper in the next two years, Haloid company was launched. Copy the first name Model A but not accepted. The copying each piece takes almost a minute. And work harder to have taken steps to 14 steps, if more than 12 sets of reproduction problems, thus improving the company Haloid Model A takes up to 10 years until 1959, the company. which renamed the XEROX successfully launched photocopier Model 914 comes out and succeeded in selling rapidly, resulting Chester Carlson became wealthy in the operation of the machine Place the original face down. clear glass on top of the copier. Close the lid and press down Copy machine After pressing the button will light trickled out of the area put into the document. Light from fluorescent Torres Plaisance or halogen lamps to illuminate the original document. To reflect light Letters or pictures on paper with black non-reflective. While the white paper will reflect light well. This reflected light is shone onto the surface of the roller, which has a positive charge is distributed evenly. The light hitting the surface will cause a negative charge, which offset the positive charge that has ever existed. The areas not hit by light absorption due to the character of the lamp will remain positive as ever. You can see it will see positive ions arranged as a picture or character on the original model. Just back from a mirror-like image. Later, it will blow the toner has a negative charge to the roller. When the rollers rotate toward the positively charged toner. The surface has a positive charge will attract negatively charged toner to stick on the roller. Electrodes inside the device will send a positive charge to the paper. This paper will be rotated according to Roller. When the toner area is perched. The positive charge on the paper to attract the toner from the drum sticks on paper. The heat will melt the toner adhesion on paper. A copy of the document It takes less than 10 seconds.
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