How to turn off a HP Photosmart 3210 automatically

Hi,

I'd like to know how to turn off my HP Photosmart 3210 automatically, i.e.
when I shutdown Windows XP Home SP2. Now I always have to turn it off
manually.
Another thing I'd appreciate is an automatic shutdown of the printer after a
configurable number of minutes.
I examined the settings of the HP Photosmart driver, but to no avail. So
does anyone know how to turn this printer off automatically?

Thanks a lot.