11. Maintenance procedures4. If there are still fingerprints on the surface, wipe them off with lens cleaner together with a clean lens cleaning cloth. Polish againwith a dry one.If smears occur when cleaning lenses, replace the cloth. Smears are the first indication of a dirty cloth.11.6 Cleaning the exterior of the projectorHow to clean the exterior of the projector ?1. Switch off the projector and unplug the projector from the mains power net.2. Clean the housing of the projector with a damp cloth. Stubborn stains may be removed with a cloth lightly dampened with a milddetergent solution.R5906151 XDL 17/04/2018 99