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:
Mar. 18, 1997
Filed:
May. 02, 1995
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A partition wall for separating a developing chamber from a toner agitating chamber in an electrostatic developing device includes a high wall portion confronting a toner discharge opening of a toner cartridge, and low wall portions formed on either side of the high wall portion. Toner is discharged from the toner discharge opening of the toner cartridge into the agitating chamber. Toner is then sent over the partition wall and into the developing chamber by rotation of an agitator in the agitating chamber. Toner in the central portion of the agitating chamber goes over the high wall portion, and toner in the side portions of the agitating chamber goes over the low wall portions. Accordingly, a uniform amount of toner is supplied to all points along the length of a developing sleeve in the developing chamber, and hence to all points along the length of a photosensitive drum confronting the developing sleeve.