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Physics laser printerppt-pres.

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Physics laser printerppt-pres.

  1. 1. LASER PRINTER<br />Kim Ednalino<br />Bryan Rodriguez<br />Electron<br />
  2. 2. LASER PRINTER<br />What is a Laser Printer?<br />It is something which uses a xerographic process to print high quality printouts and graphics easily and quickly.<br />
  3. 3. LASER PRINTER<br />How does it work?<br />Path Taken Through the Laser Printer<br />
  4. 4. LASER PRINTER<br />How does it work?<br />Parts of a Laser Printer<br />
  5. 5. LASER PRINTER<br />How does it work?<br />Charging<br />The corona wire negatively charges the Photoreceptor Drum Assembly.<br />
  6. 6. LASER PRINTER<br />How does it work?<br />Exposure<br />The laser discharges areas of the PDA, drawing an electrostatic image.<br />
  7. 7. LASER PRINTER<br />How does it work?<br />Developing<br />Printer coats PDA with toner, a fine black negatively-charged powder. Because of its charge, it sticks only to the electrostatic image.<br />
  8. 8. LASER PRINTER<br />How does it work?<br />Transferring<br />Paper passing through is given a stronger positive charge by the transfer corona wire. This is so it can pull out the image stuck in the drum.<br />Since the paper might get stuck to the drum, the detac<br />corona wire discharges the paper after picking up the <br />toner.<br />
  9. 9. LASER PRINTER<br />How does it work?<br />Fusing<br />It finally passes through heated rollers, called fusers. It fuses the toner and the paper together. Paper doesn't burn for it passes through so quickly.<br />
  10. 10. LASER PRINTER<br />How does it work?<br />Cleaning<br />Before the process can start again, the PDA in the printer is exposed to a discharge lamp, neutralizing the drum assembly. <br />
  11. 11. The Physics Behind It…<br />The simple concept of static electricity.<br />Physics Presentation: Laser Printer<br />KimEdnalino, Bryan Rodriguez (Electron)<br />
  12. 12. SOURCES<br />Harris, T. “How Laser Printers Work” (2004) Retrieved on July 8, 2011; <br /> from http://computer.howstuffworks.com/laser-printer.htm<br />“Laser Printer” (2011) Retrieved on July 10, 2011; from http://en.<br />wikipedia.org/wiki/Laser_printer<br />THE END.<br />Physics Presentation: Laser Printer<br />KimEdnalino, Bryan Rodriguez (Electron)<br />

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