Patent ID: 7952600
Filing Date: 2011-05-31
Classification: B41J,G03G

Abstract:
1. An image forming method, wherein line heads are provided relative to respective colors, each line head comprising a plurality of lenses of which optical magnification is minus and which are arranged in an axial direction of an image carrier and in a direction perpendicular to said axial direction and light emitter blocks each disposed relative to each lens, each light emitter block being composed of “m×n” (in number) light emitting elements, said “m×n” light emitting elements aligned in “n” (in number) light emitting element lines arranged in the direction perpendicular to the axial direction, each light emitting element line including “m” (in number) light emitting elements aligned in the axial direction, said image forming method comprising the following steps of: storing image data in a storing means in such a manner as to form images to be sequentially aligned in a single line along the axial direction from a writing start position in the axial direction of said image carrier and to form a plurality of said single lines in the direction perpendicular to said axial direction; reading out the image data stored in said storing means in such a manner as to form a latent image while sequentially turning on said light emitting elements starting from the downstream side in the moving direction of said image carrier; actuating light emitting elements according to said read out image data to emit lights to be inversed in said axial direction and the direction perpendicular to the axial direction; and forming images of four colors at once by exposing a plurality of said image carriers to light from said line heads each provided in each of said image carriers.