HP LaserJet 4200dtn printer. Power consumption (typical): 685 watts maximum (printing), 27 watts maximum (standby mode), 25 watts maximum (Powersave).. Number of power supply units: 1 (standard), Recommended humidity operating range: 20 to 80% RH, Acoustic pressure emissions: 54 dB(A) (printing), 27 dB(A) (powersave)