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:
Nov. 01, 2016
Filed:
Jan. 14, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A replenishment unit replenishes a storage unit with toner. A detection unit detects a toner density of developer in the storage unit. A stoppage unit stops, based on the toner density, an image forming operation. A first calculation unit controls the detection unit to detect the toner density in a duration from when the operation stops to when the image forming unit resumes the operation, and calculates a difference between the toner density and a target. A second calculation unit accumulates the difference to obtain a cumulative value. A determination unit determines a value for determining whether or not replenishment of the toner is required, based on the difference calculated and the cumulative value calculated. A controller controls a timing at which the replenishment unit replenishes the storage unit with the toner in the duration based on the value.