Xerox 8500DN Service Manual - Page 34

Theory of Operation Main Printer Subsystems Transfix System Drum Printhead Ink Loader Electronics Module Hard Drive Configuration Card Preheater Waste Tray Drum Maintenance Kit Wave Amp Wiper Assembly s8500-008 Printer Subsystem Overview The printer is made up of eight major subsystems, which are described in this section: ■ Process Drive ■ Media Drive ■ Ink Loader ■ Printhead ■ Drum Maintenance Kit ■ Purge System ■ Drum Assembly and Transfix Assembly ■ Electronics Module The Process Drive: Transmits torque to two camshafts. The Transfix Camshaft controls the Transfix Roller loading, and the Drum Maintenance Camshaft actuates the Drum Maintenance Kit and Printhead tilt system. The Media Drive: Controls each roller in the media transport path. The Media Drive consists of a drive motor, a gearbox, two clutches, and a solenoid. The Media Drive motor also controls the movement of the Wiper Blade and headlock mechanism through a gear train and solenoid on the Exit Module. 2-2 Phaser 8400/8500/8550/8560 Color Printer Service Manual