Hello,
There is a known problem with the print Queue. If you have a printer connected to the USB port for sharing, that is. The system occasionally leaves a spooled print job in the Queue requiring the disk to keep spinning.
The quickest fixes is to use Windows to view the root dir of the Volume_1 file system. In Windows explorer make sure you have "tools-folder options-view" with the SHOW HIDDEN FILES AND FOLDERS CHECKED so you can see "hidden" files. After that you should see a .lpr directory. Delete that directory (it won't hurt anything) it will recreate itself next boot. Unplug the printer and reboot the box.
That should fix it.
-G