Epson ELP-3000 - Manual (Page 72)

3. Lift out the trackball from its holder and wipe it completely with a soft, dry
cloth to remove dirt and grit. To remove stubborn dirt and stains, moisten the
cloth with a neutral detergent. Do not use an alcohol-based cleaner.
4. Use a cotton swab to gently clean the trackball holder. Pressing too hard can
cause the holder to move out of position.
5. Place the trackball back into its holder and rotate its frame clockwise until it
locks in place.
Cleaning the Trackball 57