My printer's driving me nuts. This morning, out of the blue, my printer started producing an audible noise....Sounds like somebody squeezing a rubber-bulb bicycle horn four times. The printer is not turned on and not being used. The manual is of no help. It's an HP 1102w. I tried using HP Support online, but apparently I'm not eligible because it's out of warranty. The printer's still working, but unless I can solve this, I'm going to have to disconnect it and then reconnect it every time I use it which would be really awkward and inconvenient. Since the printer works, I assume this noise isn't a paper or ink issue alert. Any thoughts?