Ricoh C211 Service Manual page 507

INSTALLATION REQUIREMENTS
The installation location should be carefully chosen because the
environmental conditions greatly affect the performance of a machine.
1. Optimum environmental condition
Temperature – 10 to 30"C
(50
to 86"F)
Humidity – 20 to 9070 RH
On a strong and level base.
Well-ventilated and wide room.
Minimum ventilation:
air turnover 3 times / hour
The machine must be level within 5
mm (13/64") both front to rear and left
to right.
3-1