HP LaserJet Managed MFP E42540 User Guide

Table Of Contents
Table 1-13 Recommended voltage
Specication 110-volt models 220-volt models
Power requirements (Volts)
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110 to 127 volts (± 10%)
60 Hz (± 3 Hz)
220 to 240 volts (± 10%)
50/60 Hz (± 3 Hz)
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Power reported is highest value measured for all printer models using standard voltages.
Acoustic emissions
Review the acoustic emissions, including sound power level and sound pressure level.
Table 1-14 Sound power level
Acoustics: Sound power level (pages per minute (ppm)) Declared per ISO 9296
Printing (38 ppm)
L
wAD = 6.4 Bels(A)
Scanning
L
wAD = 6.0 Bels(A)
Ready Inaudible
Table 1-15 Sound pressure level
Acoustics: Sound pressure level (pages per minute (ppm)) Declared per ISO 9296
Printing (38 ppm)
L
pAm = 54 dB(A)
Scanning
L
pAm = 48 dB(A)
Ready Inaudible
Operating-environment range
In order to operate properly, the printer must be in an environment that meets certain specications.
Table 1-16
Operating-environment specications
Environment Recommended Storage
Temperature 15° to 27°C (59° to 80.6°F) 10° to 32.5°C (50° to 90.5°F)
Relative humidity 30% to 70% relative humidity (RH) 10% to 80% RH
Printer hardware setup and software installation
For basic setup instructions, see the Hardware Installation Guide that came with the printer. For additional
instructions, go to HP support on the web.
Go to http://www.hp.com/support/ljE42540MFP for HP's all-inclusive help for the printer, which includes the
following information:
Install and congure
Learn and use
Acoustic emissions
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