HP Q7699A HP LaserJet 9040/9050 - User Guide - Page 166

Note Acoustical specifications Declared per ISO 9296 Sound power level1 HP LaserJet 9050 Printing (50 ppm) Ready LWAd = 7.2 Bels (A) [72 dB(A)] LWAd = 5.6 Bels (A) [56 dB(A)] Sound power level2 HP LaserJet 9040 Printing (40 ppm) Ready 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. Configuration tested: The HP LaserJet 9050 printing simplex from Tray 3 at 50 ppm using A4 paper, and the HP LaserJet 9040 printing simplex from Tray 3 at 40 ppm using A4 paper. Operating environment Operating temperature Relative humidity Storage temperature Storage humidity Speed, in pages per minute (ppm) Expandable memory 50°F to 91°F (10°C to 32.5°C) 10% to 80% -40°F to +60°F 15% to 90% 50 ppm (HP LaserJet 9050 series printer) or 40 ppm (HP LaserJet 9040 series printer) Up to 512 MB total, using optional accessory memory DDR DIMMs 164 Appendix A Specifications ENWW