| 摘要 |
A laser beam printer which forms a latent electrostatic image on a photoreceptor with a laser beam to perform an image recording operation, includes means 2 for selectively switching a scanning density of the laser beam between a plurality of values e.g. between 300 and 400 dots per inch, and means for switching parameters other than the scanning density of the laser beam between a plurality of values in accordance with the selected scanning density. The parameters may comprise the quantity of the laser beam, the width of the laser beam for one pixel in the main and/or subsidiary scan direction, the image development bias, the photoreceptor discharge current, the toner fusing temperature, or the speed of the photoreceptor in the direction perpendicular to the laser scan direction. <IMAGE> |
