HP LaserJet M4349 Multifunction Printer series - Manual (Page 249)

Acoustic specifications
Table B-5 Sound power and pressure level for the HP LaserJet M4349x MFP 1
Sound power level Declared per ISO 9296
Printing 2 L
WAd
= 7.0Bels (A) [70dB(A)]
Copying L
WAd
= 7.2Bels (A) [72dB(A)]
Ready L
pAm
=33dB (A)
Sound pressure level Declared per ISO 9296
Printing 2 L
pAm
=55dB (A)
Copying L
pAm
=56dB (A)
Ready L
pAm
=33dB (A)
1 Values subject to change. See www.hp.com/support/ljm4349mfp for current information.
2 Speed is 43ppm A4 size.
3 Configuration tested: Base model, simplex printing with A4 paper size.
Operating environment
Table B-6 Necessary conditions
Environmental condition Printing Storage/standby
Temperature (printer and print cartridge) 15 to 32.5°C (59 to 89°F) -20 to 40°C (-4 to 104°F)
Relative humidity 10%to80% 10%to90%
ENWW Acoustic specifications 235