Patent ID: 7195163
Filing Date: 2007-03-27
Classification: B41J

Abstract:
1. A laser scanning unit to form an electrostatic latent image corresponding to an image signal by projecting a light onto a photosensitive medium, the laser scanning unit comprising: a linear light source to project the light; a micro-mirror array to reflect the light toward the photosensitive medium; a micro-lens array disposed in an optical path of the light between the micro-mirror array and the photosensitive medium, to focus the light reflected from the micro-mirror array onto the surface of the photosensitive medium; and a blocking member disposed on an outer side of the photosensitive medium, comprising a blocking portion to block the light approaching the photosensitive medium without passing through the micro-lens array and, a slit in the blocking portion to pass the reflected light incident thereon.