Acoustic emissions

Table C-5Sound power level1, 2

Sound power level

Declared per ISO 9296

 

 

Printing3

LWAd= 7.4 Bels (A) [74 dB(A)]

 

 

Ready

Essentially Inaudible

1Values are based on preliminary data. See www.hp.com/go/ljm9040mfp/regulatory or www.hp.com/go/ljm9050mfp/ regulatory for current information.

2Configuration tested: Base unit printing and scanning continuous with ADF on A4 paper with no output device.

3Print speed is 50 ipm HP LaserJet M9050 MFP and 40 ipm HP LaserJet M9040 MFP.

Table C-6Sound pressure level1, 2

Sound pressure level

Declared per ISO 9296

 

 

Printing/Copying3

LpAm=58 dB (A)

 

 

Ready

Essentially Inaudible

1Values subject to change. See www.hp.com/support/ljm9040mfp or www.hp.com/support/ljm9050mfp for current information.

2Configuration tested: Base unit printing and scanning continuous with ADF on A4 paper with no output device.

3Print speed is 50 ipm HP LaserJet M9050 MFP and 40 ipm HP LaserJet M9040 MFP.

Operating environment

Table C-7Necessary 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