Acoustical specifications
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| Declared per |
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| ISO 9296a |
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HP LaserJet 9050mfp | Sound power level | Printing/copying | LWAd = 7.4 Bels (A) |
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| (49 ppm) | [74 dB (A)] |
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| Ready | LWAd = 5.7 Bels (A) |
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| [57 dB(A)] |
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| or essentially inaudible |
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| Sound pressure level | Printing/copying | LpAm = 58 dB(A) |
| (Bystander position) | (49 ppm) |
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| Ready | LpAm = 39 dB(A) |
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| or essentially inaudible |
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HP LaserJet 9040mfp | Sound power level | Printing/copying | LWAd = 7.4 Bels (A) |
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| (39 ppm) | [74 dB(A)] |
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| Ready | LWAd = 5.7 Bels (A) |
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| [57 dB(A)] |
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| or essentially inaudible |
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| Sound pressure level | Printing/copying | LpAm = 58 dB(A) |
| (Bystander position) | (39 ppm) |
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| Ready | LpAm = 39 dB(A) |
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| 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.
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. |
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ENWW | Environmental specifications 191 |