Brother DCP-9020CDW Basic User's Manual page 158

Model
Noise Level Sound
Pressure
Sound Power Copying
Temperature
Humidity
ADF (automatic document feeder)
1
Measured in accordance with the method described in RAL-UZ122.
2
Office equipment with L
concentration. Such equipment should be placed in separate rooms because of noise emissions.
150
Printing
Ready
1 2
(Colour)
1 2
Copying
(Monochrome)
1 2
Ready
Operating
Storage
Operating
Storage
d>6.30 B (A) is not suitable for use in rooms where people require high levels of
WA
DCP-9020CDW
L m = 53.0 dB (A)
PA
L m = 33 dB (A)
PA
L d = 6.42 B (A)
WA
L d = 6.41 B (A)
WA
L d = 4.38 B (A)
WA
10 to 32.5 °C
0 to 40 °C
20 to 80% (without condensation)
10 to 90% (without condensation)
Up to 35 pages
For best results we recommend:
Temperature: 20 to 30 °C
Humidity: 50% to 70%
2
Paper: 80 g/m