Fujitsu IMAGE SCANNER FI-4860C Operator's Manual page 17

Do not use aerosol sprays near the scanner.
Do not use aerosol sprays, for example, to clean the
scanner. Air sprayed from aerosol sprays causes dirt
and dust to enter the scanner, resulting scanner
failure and malfunction.
Avoid any contact when scanner is in use.
Avoid any contact when scanner is operating as this
may cause injuries.
Disconnect the power plug from the power outlet when the scanner is
not used for a long period of time.
When the scanner is not used for a long period of
time, be sure to disconnect the power plug from the
power outlet for safety's sake.
Do not install the scanner in the direct sunlight.
Do not install the scanner in the direct sunlight or
near heating apparatus. Doing so might cause heat
to build up inside the scanner, causing fire or
scanner trouble. Install the scanner in a well-
ventilated location.
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