Abstract
There are two kinds of exposuring method on laser beam printer ; background area exposuring (BAE), and image area exposuring (IAE). The former makes laser beam exposuring on the area outside the image dot, and it has a merit to use ordinary electrophotographic processing. The latter makes exposuring on the region of blacken areas, and it must be used by reversal development.
In this paper, we have analized these methods both by computer simulations and experiments, on the aspect of reproduction of lines and characters, then we have obtained some results for optimization of laser spot diameter.
