in xerography the paper on which print is taken is positively charged by corona wires. what is the purpose to make it positively charged?
Answers
Answer: This may help you
Explanation:
The human-end of making a copy begins with a few basic steps:
Open the copier lid
Place the document to be photocopied face-down on the glass
Select the options you want (number of pages, enlargements, lighter/darker)
Press the Start button
What happens inside the copier at this point is amazing! At its heart, a copier works because of one basic physical principle: opposite charges attract.
As a kid, you probably played with static electricity and balloons. On a dry winter day, you can rub a balloon on your sweater and create enough static electricity in the balloon to create a noticeable force. For example, a balloon charged with static electricity will attract small bits of paper or particles of sugar very easily.
A copier uses a similar process.
Inside a copier there is a special drum. The drum acts a lot like a balloon -- you can charge it with a form of static electricity.
Inside the copier there is also a very fine black powder known as toner. The drum, charged with static electricity, can attract the toner particles.