xerox machine

Xerox machine is found in every office, every college, especially near engineering college we can see xerox shops, as we all know students wants Xerox notes during exam.

everyday while going to college we may go through xerox shop,after getting jobs we use xerox machine but never taught how does it work lets know it.

Xerox machine 

how does xerox machine work.

xerox machine work on the principle that opposites attract. Toner is a powder that is used to create the printed text and images on paper. The drum which is located in the heart of a photocopier, is positively charged using static electricity. An image is transferred using laser.

Main function :

photocopier produce copies using laser technology, a dry process that uses electrostatic charge on a light-sensitive photo-receptor to transfer toner onto paper to form an image.

Static electricity:

paper which we want photocopy is placed downwards onto a sheet of glass. using static electricity , an image of this paper is projected onto a positively charged drum. The coating on the drum can conduct electricity when light hit it.

Charging :

cylindrical drum is electrostatically charged by a high voltage wire called charge roller. The drum has a coating of a photo conductive material. A photo-conductor is a semiconductor that becomes conductive when exposed to light.

Exposure:

A bright lamp expose document to make a copy.

Developing :

Toner is positively charged when it is applied to drum to develop the image.

Few facts of xerox machine.

color copies helped make Disney's 101 dalmatian

danger of catching fire.

Components of xerox machine.

• Laser
• Photo-conductive Drum
• charge corona
• Toner unit
• Transfer corona 
• Fuser unit
• Cleaning unit
• Ribbon
• Print-head
• Ink cartridge

Xerox machine we use in many ways but we never electronics is made used there