Terminal - Cleaning the Terminal
To properly maintain a terminal, clean it regularly to remove dust, accumulations of dirt or grease, and fingerprints.
To clean the terminal, use a clean cloth slightly dampened with water and a drop or two of mild soap. For stubborn stains, use alcohol or an alcohol-based cleaner.
CAUTION: Never use thinner, trichloroethylene, or ketone-based solvents – they may deteriorate plastic or rubber parts.
Do not spray cleaners or other solutions directly onto the keypad or LCD screen.