Patent ID: 6763213
Filing Date: 2004-07-13
Classification: G03G

Abstract:
An apparatus for forming a color image using electrophotography, the apparatus comprising:a photosensitive drum on which a predetermined electrostatic latent image is formed; a plurality of developing units disposed around the photosensitive drum and each including a developing roller supplying toner to a corresponding surface of the photosensitive drum to develop the electrostatic latent image; pressure cams sequentially or selectively pressing corresponding developing units against the photosensitive drum when the electrostatic latent image is developed; and a bracket slide including tension springs disposed to be coupled to corresponding developing units to generate the same normal force regardless of relative positions of the developing units with respect to the corresponding surface of the photosensitive drum, the same normal force being applied to the corresponding surface of the photosensitive drum from the developing roller of the corresponding developing units to reduce a shock generating when the developing roller contacts the corresponding surface of the photosensitive drum.