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Embed code for: STATIC ELECTRICITY PHENOMENA
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STATIC ELECTRICITY PHENOMENA
TABLE OF CONTENTS
Photocopying is an invention used in our everyday lives from the large scale photocopying of text books to the printing of handouts. The photocopying machine uses static electricity to carry out its function. The photocopying machine consist of a The surface on the photo copier drum is made from a photo conductive material, which is an insulator when dark but is a conductor in the presence of light. After You place the document you want to copy upside down on the glass:
The dark drum is charged with static electricity.
The light reflecting from the sheet(s) to be copied, shines on the drum and so the static electricity remains on the dark areas.
Then the tiny toner powder particles stick to the charged particles of the drum and are transferred to the new sheet of paper .
Finally the heater melts the toner on the paper to make a copy.