HP 8550DN Power Save Noise

[tim taylor]

I just picked up this printer and after it's been in power save for about 30 min. or so it makes like a quick tumble sound for about 2 seconds. It keeps doing this about every 30 min. I looked in the menu and could find anything in there for this. any idea if I can make it stop or what it is. drives my wife crazy and in return me!

[MichaelTech]

this is a calibration thing. It may be that it could use a cleaning.
Is it plugged into a UPS, or a power strip? Straight to a wall socket only!

[tim taylor]

printer is plugged straight into wall. I would not think it would be calabrating in power save all thou it may. you would think it would when it comes out of power save