This wasn't bought for the advertised applications. I'm involved in graphic arts and and often use 'old fashioned' ink pens. The pens work beautifully when they're kept clean. Occasionally, though, the ink hardens up and the pen can be the devil to get to work properly. When the Uten arrived, I mixed a little Koh-I-Noor pen cleaner and water in the tub and put a dirty nib in it. When I turned the thing on, clouds of old ink seeped out of the point. I'm pretty impressed. It's about the size and…