Front cover assembly - Has cutouts for the toner cartridge door release button, and paper input tray assembly
Laser/scanner assembly - Mounts on the front support shelf on the printer frame assembly - Mounts just below the engine control unit PC board
Stepping motor - Main drive motor for the printer - Motor M1
Paper pickup roller (D-shaped roller) - Picks up media from the paper input tray
Compression spring - Provides pressure for scanner link - Two used, one on each side