HP Color LaserJet CP3505 Printer series - Manual (Page 208)

Acoustic specifications
Table C-4 Acoustic emissions for theHP Color LaserJet CP3505 printers
Sound power level Declared per ISO 9296
Printing (20 ppm) 1 L
WAd
= 6.4 Bels (A) [64 dB (A)]
Ready L
WAd
= 5.4 Bels (A) [54 dB (A)]
Sound pressure level: bystander position Declared per ISO 9296
Printing (20 ppm) 1 L
pAm
= 50 dB (A)
Ready L
pAm
= 40 dB (A)
1 The printing speed is 20 ppm for letter-size media and 21 ppm for A4-size media.
NOTE: These values are subject to change.
196 Appendix C Printer specifications ENWW