HP LaserJet 9040.9050 Multifunction Printer series - Manual (Page 195)

ENWW Environmental specifications 191
Acoustical specifications
Note Configuration tested: Base unit printing and scanning continuous with ADF on A4 paper at 49 ppm
(HP LaserJet 9050mfp) and 39 ppm (HP LaserJet 9040mfp) with no output device.
Declared per
ISO 9296
a
HP LaserJet 9050mfp Sound power level Printing/copying
(49 ppm) L
WAd
= 7.4 Bels (A)
[74 dB (A)]
Ready L
WAd
= 5.7 Bels (A)
[57 dB(A)]
or essentially inaudible
Sound pressure level
(Bystander position) Printing/copying
(49 ppm) L
pAm
= 58 dB(A)
Ready L
pAm
= 39 dB(A)
or essentially inaudible
HP LaserJet 9040mfp Sound power level Printing/copying
(39 ppm) L
WAd
= 7.4 Bels (A)
[74 dB(A)]
Ready L
WAd
= 5.7 Bels (A)
[57 dB(A)]
or essentially inaudible
Sound pressure level
(Bystander position) Printing/copying
(39 ppm) L
pAm
= 58 dB(A)
Ready L
pAm
= 39 dB(A)
or essentially inaudible
a.Values current as of March 2, 2004. Values subject to change, see www.hp.com/support/
lj9040mfp or www.hp.com/support/lj9050mfp for current information.