Image forming apparatus to form smooth image with inconspicuous granularity,申请号US20000580875-传众专利搜索

Image forming apparatus to form smooth image with inconspicuous granularity

申请公布号：US6342910(B1)

申请号：US20000580875

申请日期：2000.05.30

申请公布日期：2002.01.29

申请人：

RICOH COMPANY, LTD.

发明人：SAKAMOTO KOJI;SAWAYAMA NOBORU

分类号：G03G15/00;G03G13/08;G03G15/32;H04N1/29;(IPC1-7):G03G15/00;G02B26/10

主分类号：G03G15/00

摘要：An image forming apparatus includes an image bearing member, and an image processing device whic processes image data of an image including pixels forming the image such that a gradation of the image is represented by a density of toner adhering pixels of the image forming pixels per unit area of the image. The image forming apparatus further includes a latent image forming device which forms an electrostatic latent image of the image including the image forming pixels on the image bearing member in accordance with the image data processed by the image processing device, a developing device which visualizes the electrostatic latent image of the image on the image bearing member to a toner image, and a transfer device which transfers the toner image on the image bearing member to a transfer member. A diameter of a pixel toner image of each toner adhering pixel of the toner image on the image bearing member is in a range of 20 mum to 50 mum, and the transfer device includes a primary transfer member, a primary transfer device which transfers the toner image on the image bearing member to the primary transfer member, and a secondary transfer device which transfers the toner image on the primary transfer member to the transfer member.