The makers of most of these netbooks say you can't, but I'm not so sure. But you'd have to use a printer that has Windows CE drivers and a USB interface. Two old examples are the Canon BJC series and the Pentax PocketJet II. Maybe one of these will work using the ARM version of the driver for CE 2.11 or above. I have a PocketJet, but I haven't been able to get it to print thus far even from one of my CE 2.11 devices.