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. 16, 1990
Filed:
Feb. 29, 1988
Masami Taniguchi, Osaka, JP;
Junichi Takamatsu, Osaka, JP;
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
A device for use with an image forming apparatus having a photosensitive drum and a developing device and a cleaning device disposed around the photosensitive drum for conducting developer recovered in the cleaning device to the developing device includes a circulating passage provided between the developing device and the cleaning device so as to communicate the developing device with the cleaning device. A discharging device discharges developer recovered in the cleaning device to the circulating passage, and a conveyor is disposed in the circulating passage to convey developer in the circulating passage to the developing device, the conveyor and the circulating passage being constructed to provide a space between the conveyor and the circulating passage such that a portion of the developer is allowed to be temporarily retained in such space. A supply device is provided for supplying developer conveyed by the developer into the developing device.