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:
Sep. 03, 1991
Filed:
Mar. 06, 1990
Tadashi Ohira, Osaka, JP;
Akira Ohhata, Osaka, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A toner supply arrangement for use in a developing apparatus which includes a plurality of toner accommodating containers provided in the developing apparatus, a toner transport device for transporting toner accommodated in each of the plurality of toner accommodating containers to the developing apparatus, a driving unit for driving the toner transport device; a first toner detecting device for detecting presence or absence of toner accommodated in each of the plurality of toner accommodating containers, a cover member for selectively opening or closing an opening for each of the plurality of toner accommodating containers, an open/close detecting device for detecting opening or closing of the cover member, and a control device for actuating the first toner detecting means upon detection of the opening or closing of the cover member so as to apply a control signal to the driving unit according to result of detection of the toner detecting device.