Dell P1500 Personal Mono Laser Printer - Manual (Page 97)

Humidity
Temperature Relative humidity
(non-condensing)
15.6° C (60° F) 8%
15.6° C (60° F) 80%
25.6° C (78° F) 80%
32.2° C (90° F) 8%
32.2° C (90° F) 45%
Storage
Temperature range: -4°F to 104°F (-20°C to 40°C)
Unpacked humidity range: 8% RH to 80% RH (non-condensing)
Storage (packed) humidity range: 8% RH to 95% RH (non-condensing)
Altitude
Operating: up to 2,500 m (8200 feet)
Storage (packed): 0.25 atmospheric pressure (equivalent to 10,300 m or 34,000 feet)
Vibration
Operating: 0.2G
Idle: 0.5G
Shock
Withstand a drop from 3 cm height
Tilt