Question

In laser printing, the function of a transfer roller is to apply an electrical charge to a sheet of paper to move the representation of an image or text (consisting of toner) from the imaging drum to the paper.

Answer 1

In laser printing, the transfer roller charges a sheet of paper to attract toner from a photoconductive drum, after which heated rollers fuse the toner onto the paper, producing a high-quality print.

Step-by-step explanation:

In laser printing, a transfer roller plays a crucial role in the printing process. The laser printer works by using a laser beam to scan across a drum, creating a positive charge image. This image attracts dry ink particles, known as toner, to the charged areas.

The transfer roller gives a blank sheet of paper a positive electrical charge, greater than that on the drum, which causes the toner to transfer from the drum to the paper.

This process, intricate and refined, ensures that laser printers can produce exceptionally precise and sharp documents, leveraging the principles of electrostatics similar to those in xerography.