What is the function of the transfer corona/roller?

The transfer corona or roller plays a crucial role in the printing process, specifically in transferring toner from the imaging drum to the paper. After the toner is applied to the drum in the desired pattern during the printing phase, the transfer corona creates an electric charge that attracts the toner particles on the drum and helps move them onto the paper. This ensures that the toner adheres properly to the paper surface, resulting in a clear and accurate printout. Understanding this function is essential for grasping how laser printers operate and the mechanics behind the transfer of images or text from one medium to another.