Patent ID: 7242883
Filing Date: 2007-07-10
Classification: G03G

Abstract:
1. An image formation apparatus, comprising: an exposure unit configured to expose an image supporting object that is uniformly charged, and to form an image in a plurality of colors; a printing medium conveyance unit configured to convey a printing medium, an intermediate transfer unit configured to temporarily receive the image and transfer the image to said printing medium that is conveyed by said printing medium conveyance unit; a temperature measurement unit configured to measure temperatures of a plurality of places of said intermediate transfer unit; and an exposure control unit configured to control timing of exposure performed by said exposure unit by calculating expected color gaps between the colors of the image formed at image forming positions of said image supporting object based on differences in temperatures between the places of said intermediate transfer unit, said difference in temperature being obtained by directly calculating a difference between the temperatures measured at said places of the intermediate transfer unit and by adjusting the timing of exposure such that said expected color gaps are prevented from occurring.