HP LaserJet M9059 Multifunction Printer series - Manual (Page 250)

Acoustic emissions
Table B-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/ljm9059mfp/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.
Table B-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/ljm9059mfp 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.
Operating environment
Table B-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.
236 Appendix B Specifications ENWW