HP Deskjet 6127 Color Inkjet Printer - Manual (Page 116)

power consumption
hp deskjet 6122 series
The default activation period for power saving mode is less than 5 minutes.
1.5 watts maximum when off
2.5 watts maximum when not printing
35 watts average when printing
hp deskjet 6127 series
The default activation period for power saving mode is less than 5 minutes.
2 watts maximum when off
4 watts maximum when not printing
35 watts average when printing
power requirements
Input Voltage: 100 to 240 VAC (± 10%)
Input Frequency: 50/60 Hz (± 3 Hz)
Accommodates the worldwide range of AC line voltages and frequencies.
declared noise emissions in accordance with ISO 9296
Best Mode:
Sound power level, LWAd: 5.5 Bels (A) [55 dB (A)]
Sound pressure level, LpAm (bystander positions): 42 dB (A)
Fast Normal Mode:
Sound power level, LWAd: 6.4 Bels(A) [64 dB (A)]
Sound pressure level, LpAm (bystander positions): 51 dB (A)
alignment
Skew:
± .006 mm/mm (.006 in/in) on plain paper and special paper
± .010 mm/mm (.010 in/in) on HP transparency films
± .012 mm/mm (.012 in/in) on envelopes, cards, and card-sized photo paper