I just learned it from my other question on Stackoverflow not long ago http://stackoverflow.com/questions/15674880/ http://stackoverflow.com/questions/15674880

I just learned it from my other question on Stackoverflow not long ago http://stackoverflow.com/questions/15674880/ http://stackoverflow.com/questions/15674880/ It's a cool hack which you can serve low-res, monochrome jpeg in the first scan, and gradually to full-res, full-color jpeg.