The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2002
Filed:
May. 30, 2000
Koji Sakamoto, Tokyo, JP;
Noboru Sawayama, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
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 &mgr;m to 50 &mgr;m, 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.