Patent ID: 6785502
Filing Date: 2004-08-31
Classification: G03G

Abstract:
An image forming apparatus comprising:a rotatable image carrier for forming a toner image thereon; image transferring means for transferring the toner image to a recording medium; and moving means for selectively moving said image transferring means toward or away from said image carrier; wherein said moving means moves said image transferring means toward said image carrier on the elapse of at least a period of time necessary for said image carrier to rotate from a rotation start position to a reversely rotated position, and a distance between a position where said image transferring means approaches said image carrier and a position where the toner image starts being formed on said image carrier is a, said image carrier is reversely rotated by a distance of b, a linear velocity of said image carrier is V, and a period of time between a start of rotation of said image carrier and image formation is c, then a period of time t necessary for said image transferring means to approach said image carrier after the start of rotation of said image carrier satisfies a relation: (a+b)/V