Patent ID: 6049396
Filing Date: 2000-04-11
Classification: G03G,H04N

Abstract:
A color image forming apparatus for forming a toner image on a sheet of paper, comprising:an image carrier for sequentially forming toner images of respective colors thereon;a charger for charging said image carrier;an exposure device for exposing said image carrier which has been charged and forming electrostatic latent images of respective colors on said image carrier;a revolving type developing device which is rotatively supported in said color image forming apparatus, including a plurality of color developing devices, each of which includes a developing unit for developing a toner image on said image carrier when said developing unit faces said image carrier and a toner supply unit for supplying toner to said developing unit, wherein an external shape of said revolving type developing device is a cylinder;an intermediate transfer belt to which said toner images are sequentially transferred on top of previously transferred toner images;a primary transferring charger for sequentially transferring said toner images from said image carrier to said intermediate transfer belt to form a composite toner image on said intermediate transfer belt;at least one paper feed tray for storing sheets of paper and feeding the sheets of paper one at a time;a secondary image transferring charger for transferring said composite toner image from said intermediate transfer belt to one of the sheets of paper; anda fixing device for fixing said toner image on said sheet of paper,wherein a length of said intermediate transfer belt is greater than a circumference of said image carrier.