Ricoh C211 Service Manual page 508

2. Environments to avoid:
Location exposed to direct sun-light
or strong light (more than 1,500 Iux).
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Areas with corrosive gases.
3. Ground:
Dusty areas.
Locations directly exposed to cool air
from an air conditioner or to reflected
heat from a space heater. (Sudden
temperature changes from low to high
or vice versa may cause condensation
within the machine.)
Be sure to ground the machine.
Never connect the ground line to gas
pipes.
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