During which stage of the laser printing process is the image imprinted on the EP drum by the laser?

The image is imprinted on the EP (Electrophotographic) drum during the writing stage of the laser printing process. This stage is crucial as the laser selectively illuminates the EP drum surface, creating a latent electrostatic image. When the drum is exposed to the laser, areas that are hit by the beam lose their negative charge, allowing those sections to attract toner particles later in the process.

Understanding this stage helps to recognize its importance in the overall operation of a laser printer. The writing stage directly contributes to the formation of the image that will be transferred to the paper, making it foundational for the printing cycle. Each subsequent stage, including fusing, transfer, and cleaning, relies on the successful completion of the writing step to ensure an accurate printout.