Lexmark C510 Service Manual - Page 47

5021-0XX Printer systems description See the illustration "Printer component systems" on page 1-23, for more information. Basic principles of color printing Color printing is made through the subtractive process of combining the three primary colors: yellow, magenta, and cyan. Mechanical and electrical structures This color laser printer consists of five engineering systems: print, transfer, optical, paper transport, and control system. Print system The print system consists of six functional parts located around the optical photoconductor (OPC) belt and forms a toner image on the OPC belt: charge, expose, develop, first transfer, discharge, and clean. Transfer system The transfer system consists of three functional parts that transfers the toner image formed on the transfer belt to paper: transfer belt unit, second transfer, and cleaning roller. Optical system The optical system consists of two functional parts that forms an electrostatic latent image on the OPC belt using a laser light: optical unit and scanner motor (SCM). Paper transport system The paper transport system consists of five functional parts that picks up paper from the paper tray, separates the transported paper from the transfer belt, and exits it from the printer after fusing the toner image on the paper: paper tray, transport, fuser, and paper exit. General information 1-21