Chapter 22-52.3 Image Formation2.3.1 Overview/Configuration2.3.1.1 Overview 0002-8626F-2-4T-2-4In response to a print command, the engine controller turns on the main motor to drive the photosensitive drum,developing cylinder, primary charging roller, and transfer charging roller.Thereafter, the machine uses the primary charging roller to charge the surface of the photosensitive drum to an even,negative potential and, at the same time, directs the laser beam across the surface of the photosensitive drum. (Thelaser beam is modulated to according to the incoming video signals.)The image thus formed on the photosensitive drum is a static, latent image; it is turned into a visible image by meansof the toner from the developing cylinder. The resulting toner image is then transferred to paper by the work of thetransfer charging roller, and the paper is sent to the fixing assembly. The surface of the photosensitive drum iscleaned by the cleaning blade so that it is free of residual toner; after cleaning, the primary charging roller once againcharges the surface to an even, negative potential to prepare for the formation of a new static, latent image.[1] Laser/scanner assembly [5] Photosensitive drum[2] Laser beam [6] Transfer charging roller[3] Blade [7] Primary charging roller[4] Developing cylinder [8] Cleaning blade[1] [2][6][3][4][5][8][7]
