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:
Jul. 08, 2014
Filed:
Feb. 07, 2012
Applicant:
Shunsuke Nishimura, Tokyo, JP;
Inventor:
Shunsuke Nishimura, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus that can prevent image deletion in carrying out image formation upon turning-on of power supply after main power supply is turned off before the image forming apparatus goes into a sleep state. A movable member is moved between a shielding position at which it shields a photosensitive drum from a charger and a retracting position at which the photosensitive drum and the charger are opened to each other. When power supply is turned on, a time period for which the photosensitive drum is rotated by a driving unit is controlled according to the position of the movable member detected by a movable member sensor.