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:
Apr. 19, 1994
Filed:
Dec. 17, 1991
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
An image forming apparatus comprises an image carrier for carrying an electrostatic latent image on its surface, a charging member for charging the image carrier to a predetermined polarity by contacting with the surface of the image carrier, latent image forming means for forming an electrostatic latent image corresponding to image information on the surface of the image carrier charged, and a developing device containing toner including toner particles not less than 90% of which have a shape factor SF-1 expressed by the following equation of not more than 160 and less than 1% of which have a shape factor SF-1 of not less than 170 so as to develop the electrostatic latent image formed on the surface of the image carrier into a toner image: