HP LaserJet 9040/9050 Service Manual - Page 25

Table 9. Acoustical specifications Declared per ISO 9296 Sound power level1 HP LaserJet 9050 Sound power level2 HP LaserJet 9040 Printing (50 ppm) Ready Printing (40 ppm) Ready LWAd = 7.2 Bels (A) [72 dB(A)] LWAd = 5.6 Bels (A) [56 dB(A)] LWAd = 7.0 Bels (A) [dB(A)] LWAd = 5.6 Bels (A) [dB(A)] Sound pressure level3 (Bystander position) HP LaserJet 9050 Printing (50 ppm) Ready LpAm = 56 dB(A) LpAm = 40 dB(A) Sound pressure level4 (Bystander position) HP LaserJet 9040 Printing (40 ppm) Ready LpAm = 54 dB(A) LpAm = 39 dB(A) 1.Values current as of October 16, 2003. Values subject to change, see www.hp.com/support/ lj9050_lj9040 for current information. 2.Values current as of October 24, 2004. Values subject to change, see www.hp.com/support/ lj9050_lj9040 for current information. 3.Values current as of October 16, 2003. Values subject to change, see www.hp.com/support/ lj9050_lj9040 for current information. 4.Values current as of October 24, 2004. Values subject to change, see www.hp.com/support/ lj9050_lj9040 for current information. Product specifications 9