Originally Posted by
carmangary
What I don't like about current scanning is that you tell the scanner to go to point x0,y0 and then give it some time to get there then you tell it to go to point x1,y1, and then repeat this a gazillion times. If you look at what is going on inside the scanner amp, you see wicked accelation followed by wicked deceleration. It's basically like being at a stop light and going full throttle when the light turns green and then slamming on the brakes at the next light, then repeating.
There is no method of telling the scanner amp that it has to go to point x0,y0 but don't slow down when you get there because the next step is still on the same path. But, with a smarter scanner you could do that and it could maintain (at least more closely) a constant velocity throughout the image. This would get rid of hot spots (bright dots) where there shouldn't be.