Which Principal Is Used In Laser Printing?

The principal used in laser printing is called the electrophotographic printing process, also known as the xerographic process. This process involves several steps:

  1. Charging: A photoconductive drum is given a negative charge.

  2. Exposure: A laser beam is used to create an image on the drum by selectively removing the negative charge where the image is to be printed.

  3. Developing: Toner, which is a fine powder of plastic and pigment, is attracted to the areas of the drum where the charge has been removed.

  4. Transferring: The toner is transferred from the drum to a piece of paper or other medium.

  5. Fusing: The toner is fused to the paper using heat and pressure, creating a permanent image.

Laser printing is known for its high quality, sharpness, and speed, and is commonly used in offices, homes, and other settings for printing documents, graphics, and other materials.