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. 20, 2012
Filed:
Apr. 29, 2010
Tohru Sakuwa, Osaka, JP;
Tohru Sakuwa, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An exhaust device provided in an image forming apparatus is provided. In the exhaust device, an initial condition setting unit sets an initial drive output value of a exhaust fan at a time of starting an image forming operation based on a calculation value calculated by an image bearing member drive counting unit. A drive unit drives the exhaust fan to start to discharge air in the image forming apparatus. A continuation condition setting unit sets a continuation drive condition at a time of continuously driving the exhaust fan from a point in time when ending the image forming operation based on a count value of the number of image formation by the job counting unit. A drive unit drives the exhaust fan with the continuation drive condition to continuously discharge the air in the image forming apparatus.