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:
Aug. 02, 2011
Filed:
Feb. 20, 2009
Yoshiteru Hattori, Ichinomiya, JP;
Yoshiteru Hattori, Ichinomiya, JP;
Brother Kogyo Kabushiki Kaisha, Aichi-ken, JP;
Abstract
An image forming apparatus includes; a main body; a detachable member; a cover; a displacement member movable between a preventing position and a permitting position; a one-way link mechanism provided for displacing the displacement member from the preventing position to the permitting position when the cover is opened from a state in which the cover is closed and the displacement member is disposed in the preventing position, and for keeping the displacement member in the permitting position when the cover is closed from a state in which the cover is opened; a position detection unit for detecting a position of the displacement member right after a power supply unit has been switched on; and a history determination unit for determining an existence of a history showing an opening and closure of the cover while the power supply unit is left off based on the position of the displacement member.