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. 04, 2014
Filed:
Jun. 23, 2010
Akihiro Suzuki, Ushiku, JP;
Hidetoshi Ichige, Tsukuba, JP;
Akihiro Suzuki, Ushiku, JP;
Hidetoshi Ichige, Tsukuba, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for manufacturing a low-cost electrophotographic elastic roller having a good dimensional precision is provided. In that method, in which both end parts of a shaft core body are gripped and fixed in a vertical direction, an inclination of a central axis is corrected, a circular coating head including a circular slit is used so that the shaft core body is moved in the direction, and a elastic layer material is ejected from the slit to be coated on the shaft core body, the method includes: a maximum deflection coordinate in a longitudinal direction of the shaft core body is detected with a central axis of the shaft core body as a base point coordinate before coating; a central position of the head is moved at constant from the base point to the maximum during coating, and the position is moved to the base point after the head has reached the maximum.