Environment; Acoustics - Lexmark T640 Service Manual

4061-xx0

Environment

Printer temperature and humidity
•
Operating
–
Temperature: 16 to 32° C (60° to 90° F)
–
Relative humidity: 8 to 80%
–
Altitude: 10,000 ft. (0 to 3,048 meters)
•
Storage and shipping environment (packaged)
–
Temperature: -40° to 43° C (-40° to 110° F)
–
Relative humidity: 5% to 95%
–
Altitude: equivalent to 10,300 meters (0 to 34,000 feet)
•
Storage environment (unpacked)
–
Temperature: 0° to 40° C (32° to 104° F)
–
Relative humidity: 5% to 80%

Acoustics

All measurements are made in accordance with ISO 7779 and conform with ISO 9296.
Model
Lexmark T640(n)
Lexmark T642(n)
Lexmark T644(n)
Note: Measurements apply to 300 dpi, 600 dpi, and 1200 dpi printing.
1-8
Service Manual
Status
Idle (standby mode)
Simplex printing
Duplex printing
Idle (standby mode)
Simplex printing
Duplex printing
Idle (standby mode)
Simplex printing
Duplex printing
1 Meter average
sound pressure
30 dBA
53 dBA
55 dBA
32 dBA
54 dBA
57 dBA
30 dBA
55
58
Declared sound
power
4.0 Bels
6.7 Bels
N/M Bels
4.7 Bels
6.8 Bels
N/M Bels
4.5
7.0
N/M