This can inflame those that want to fix things.
I have an HP LaserJet 4100. I'm getting the error 57.4 which means it's either the fan or the DC controller. When I power up, the fan runs correctly for three seconds and then stops. This may be OK, but after the warm up I immediately get the 57.4 error message. Does this mean it's the DC controller or might it still be the fan?
thanks, ed g
This one tip will help you sleep better tonight
A few seconds are all you need to get a better night's rest.