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:
Oct. 22, 1996
Filed:
Jan. 24, 1995
Yasuo Komada, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developer remain amount detecting apparatus includes a detector for detecting a remain amount of a developer within a developer container, a first memory in which a reference value for a comparison with a detection signal from the detector is prememorized, a second memory for memorizing the reference value read from said first memory, input unit for inputting a value for modifying the reference value memorized in the second memory unit, modifying unit for modifying the reference value memorized in the second memory unit based on the value input by the input unit, and judgement unit for judging whether the developer is present by comparing the reference value memorized in the second memory with the detection signal from the detector.