HP Officejet Pro K850dn Printer - Manual (Page 129)

Electrical specifications
For media and media-handling specifications, see Selecting print media .
Power supply External universal power adapter
Power requirements ● Input voltage: 100 to 240 VAC (+/–
10 percent), 50/60 Hz (+/-3Hz)
● Output voltage: 32 Vdc, 2500 mA
Maximum allowable power consumption ● Printing: 65 watts
● Standby mode: less than 45 watts
● Off mode: less than 1 watt
Acoustic emission specifications (print in Draft mode, noise levels per ISO 7779)
Sound pressure (bystander position) LpAm 54 (dBA)
Sound power LwAm 61 (BA)
ENWW Electrical specifications 121