What are the safety warnings for handling and cleaning the DR-C125 scanner?

Never use alcohol, benzene, paint thinner, aerosol sprays, or any flammable substances near the scanner, and do not connect the power cord with wet hands. When cleaning the scanner, turn it off by pressing the power button and disconnect the power cord, then clean using only a slightly dampened cloth that has been well wrung out. If the scanner produces strange noises, smoke, heat, or unusual odors, immediately turn it off, disconnect the power plug, and contact your local authorized Canon dealer. (Page 18)