Lexmark C78x Service Manual page 28

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All measurements are made in accordance with ISO 7779 and conform with ISO 9296.

Status (at 1 Meter average sound

Printing at 4800 CQ

Idle (standby)

Duplex models—printing simplex

Duplex models—printing duplex

Duplex models—idle

Printer Temperature and Humidity

Temperature: 60 to 90° F (15.6 to 32.3° C)

Relative humidity: 8 to 80%

Maximum wet bulb temperature: 73° F (22.8° C)

Altitude: 10,000 ft. (0 to 3,048 meters)

Atmospheric pressure: 74.6 kPa

Temperature: 50 to 110° F (10 to 43.3° C)

Relative humidity: 8 to 80%

Maximum wet bulb temperature: 80.1° F (26.7° C)

Altitude: 10,000 ft. (0 to 3,048 meters)

Atmospheric pressure: 74.6 kPa

Ambient operating environment*

Temperature: 60 to 90° F (15.6 to 32.2° C)

Relative humidity: 8 to 80%

Storage and shipping (packaged printer) with or without print cartridge

Temperature: -40 to 110° F (-40 to 43.3° C)

Print cartridge

Temperature: -40 to 110° F (-40 to 43.3° C)

*In some cases, performance specifications (such as paper OCF, EP cartridge usage) are measured at an

ambient condition.

Service Manual