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. 08, 2017
Filed:
Mar. 09, 2015
Applicant:
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Inventor:
Hideaki Kadowaki, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Sakai, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 21/10 (2006.01); G03G 15/22 (2006.01);
U.S. Cl.
CPC ...
G03G 21/105 (2013.01); G03G 2215/0132 (2013.01);
Abstract
In a developer conveyance device, a spiral screw is arranged inside a spiral coil such that the spiral coil and the spiral screw are both rotated. Accompanied by rotation of the spiral coil, even if waste toner tries to pass through the spiral coil and move in a vertical direction, movement of the waste toner in the vertical direction is blocked by the spiral screw, such that the waste toner is conveyed by the spiral screw. Since the waste toner hardly passes through the spiral coil in the vertical direction, the waste toner is also conveyed by the spiral coil.