Hence, when it is in contact with the drum, it gets attached with the areas that are positively charged, just like paper sticks to a charged balloon.The toner is nothing but a dry ink substance. A semiconductor material named selenium or germanium is used to coat the drum. .The toner is negatively charged. This is done to neutralize the positive charges from the light.As a result, the charges have become opposite i.4. Even distribution of such documents is preferred through digital technology...