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:
Feb. 28, 2012
Filed:
Jun. 08, 2009
Toru Hayase, Toyokawa, JP;
Yuusuke Okuno, Toyokawa, JP;
Shigeki Yamamoto, Toyokawa, JP;
Kuniya Matsuura, Toyohashi, JP;
Hiroshi Murasaki, Toyokawa, JP;
Toru Hayase, Toyokawa, JP;
Yuusuke Okuno, Toyokawa, JP;
Shigeki Yamamoto, Toyokawa, JP;
Kuniya Matsuura, Toyohashi, JP;
Hiroshi Murasaki, Toyokawa, JP;
Konica Minolta Business Technologies, Inc., Chiyoda-ku, Tokyo, JP;
Abstract
The present invention provides a developing device which is capable of suppressing the generation of a fogging phenomenon and deposition of carrier particles to an electrostatic latent image carrier and developing the electrostatic latent image efficiently, the device includes a development sleeve and a magnet body onto which the sleeve is fitted, and using a two-component developer. An angular position which indicates the peak value of the magnetic flux density in the normal direction produced by a development pole of the magnet body is shifted downstream from the center position of the development pole in the direction of movement of the surface of a photosensitive member in a development region. The present invention also provides an image forming apparatus which can form high-quality images with reduced noise such as fogging by mounting the developing device.