Patent ID: 7666564

Claim:
An image forming method employing an apparatus comprising a plurality of image forming units, an intermediate transferring member, an end transferring device and a fixing device, in which the plurality of image forming units each comprises, an electrophotographic photoreceptor, a latent image forming device to form an electrostatic latent image on the electrophotographic photoreceptor, a developing device to develop the electrostatic latent image with a developer comprising a toner to form a toner image on the electrophotographic photoreceptor, a first transferring device to transfer the toner image onto the intermediate transferring member, and a cleaning device to remove a toner remaining on the electrophotographic photoreceptor after transferring the toner image, wherein the method comprises forming a plurality of toner images on each of the photoreceptors, each of toner image having a different color; transferring each of the toner images onto the intermediate transferring member from the photoreceptor by the first transferring device in each of the image forming units in sequence; transferring the toner images formed on the intermediate transferring member onto a recording sheet by the end transferring device; and wherein the developer is a non-magnetic single component toner, the toner comprises colored particles and external additives in an amount of 0.05 to 5.0 parts by weight per 100 parts of the colored particles, turbidity of toners of each color is less than 60; and the maximum turbidity difference among the toners is 5-45, and a toner having the largest turbidity is a yellow colored toner among the color toners forming the color image.