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. 14, 1998
Filed:
Apr. 04, 1996
Hideo Ichikawa, Numazu, JP;
Sunao Ikeda, Numazu, JP;
Nobuhiro Makita, Numazu, JP;
Michiharu Narushima, Shimizu, JP;
Seiji Terazawa, Numazu, JP;
Masakazu Nakada, Numazu, JP;
Kazuhiko Umemura, Suntoh-gun, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner container densely packed with toner to be replenished into a developing unit included in an image forming apparatus, and a method of producing the same. The toner is packed in the container with a ratio of a packing density to a saturation bulk density greater than 1.0, a mean penetration greater than 5.0 mm inclusive, and a standard deviation of penetration not exceeding one-fifth of the mean penetration. The toner can be smoothly and continuously replenished into the developing unit so as to form a number of images matching the amount thereof.