HP LaserJet M9040/M9050 HP LaserJet M9040/M9050 MFP - User Guide - Page 266

Acoustic emissions, Operating environment

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Acoustic emissions Table C-5 Sound power level1, 2 Sound power level Declared per ISO 9296 Printing3 LWAd= 7.4 Bels (A) [74 dB(A)] Ready Essentially Inaudible 1 Values are based on preliminary data. See www.hp.com/go/ljm9040mfp/regulatory or www.hp.com/go/ljm9050mfp/ regulatory for current information. 2 Configuration tested: Base unit printing and scanning continuous with ADF on A4 paper with no output device. 3 Print speed is 50 ipm HP LaserJet M9050 MFP and 40 ipm HP LaserJet M9040 MFP. Table C-6 Sound pressure level1, 2 Sound pressure level Declared per ISO 9296 Printing/Copying3 LpAm=58 dB (A) Ready Essentially Inaudible 1 Values subject to change. See www.hp.com/support/ljm9040mfp or www.hp.com/support/ljm9050mfp for current information. 2 Configuration tested: Base unit printing and scanning continuous with ADF on A4 paper with no output device. 3 Print speed is 50 ipm HP LaserJet M9050 MFP and 40 ipm HP LaserJet M9040 MFP. Operating environment Table C-7 Necessary conditions Environmental condition Recommended Temperature (device and print cartridge) 17.5° to 25.0°C (63° to 77°F) Relative humidity 30% to 70% Allowed 0° to 40°C (32° to 104°F) 0% to 95% NOTE: Optimum performance of the device is assured under the recommended temperature and humidity specifications. Print quality might deteriorate and occurrences of paper jams might increase when the device is operated withing the allowed temperature and humidity specifications. 252 Appendix C Specifications ENWW

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Acoustic emissions
Table C-5
Sound power level
1
,
2
Sound power level
Declared per ISO 9296
Printing
3
L
WAd
= 7.4 Bels (A) [74 dB(A)]
Ready
Essentially Inaudible
1
Values are based on preliminary data. See
www.hp.com/
go/ljm9040mfp/regulatory
or
www.hp.com/
go/ljm9050mfp/
regulatory
for current information.
2
Configuration tested: Base unit printing and scanning continuous with ADF on A4 paper with no output device.
3
Print speed is 50 ipm HP LaserJet M9050 MFP and 40 ipm HP LaserJet M9040 MFP.
Table C-6
Sound pressure level
1
,
2
Sound pressure level
Declared per ISO 9296
Printing/Copying
3
L
pAm
=58 dB (A)
Ready
Essentially Inaudible
1
Values subject to change. See
www.hp.com/
support/ljm9040mfp
or
www.hp.com/
support/ljm9050mfp
for current information.
2
Configuration tested: Base unit printing and scanning continuous with ADF on A4 paper with no output device.
3
Print speed is 50 ipm HP LaserJet M9050 MFP and 40 ipm HP LaserJet M9040 MFP.
Operating environment
Table C-7
Necessary conditions
Environmental condition
Recommended
Allowed
Temperature (device and print cartridge)
17.5° to 25.0°C (63° to 77°F)
0° to 40°C (32° to 104°F)
Relative humidity
30% to 70%
0% to 95%
NOTE:
Optimum performance of the device is assured under the recommended temperature and
humidity specifications. Print quality might deteriorate and occurrences of paper jams might increase
when the device is operated withing the allowed temperature and humidity specifications.
252
Appendix C
Specifications
ENWW