Patent ID: 7587159
Filing Date: 2009-09-08
Classification: G03G

Abstract:
1. An image forming method, comprising: charging a surface of an image bearing member, exposing the charged surface of the image bearing member to form an electrostatic latent image, developing the electrostatic latent image to form a visible image by use of toner, transferring the visible image from the image bearing member to an intermediate transfer body at a primary transfer portion, and transferring the visible image from the intermediate transfer body to a recording medium using a secondary transfer roller, wherein a diameter R (mm) of the secondary transfer roller and a distance A (mm) between a nip center of the secondary transfer roller and a site where the recording medium initially contacts a secondary transfer belt at a nip ingress side satisfy the following relation, wherein a magnitude of a charge amount Q in (μC/g) of the toner on the intermediate transfer body, when the visible image is transferred to the intermediate transfer body, is greater than fifteen divided by a magnitude of the distance A in (mm) squared, and wherein the magnitude of the charge amount Q in (μC/g) is less than thirty-five divided by the magnitude of the distance A in (mm) squared.