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:
Jun. 10, 2003
Filed:
Mar. 01, 2001
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A remanufacturing method is provided for a process cartridge which is detachably mountable to a main assembly of an electrophotgraphic image forming apparatus. The method includes a unit separating step of separating first and second units of the cartridge from each other, a developing roller dismounting step of dismounting a developing roller mounted to the second unit, which has been separated by the separation step, a sealing step of sealing with a sealant a connecting portion between a developer frame and a developing frame of the second unit at one longitudinal end of the frames, a developer refilling step of refilling developer into a developer accommodating portion of the second unit that has been separated by the separation step, a developing roller remounting step of remounting the developing roller to the second unit that has been separated by the separation step, and a unit re-coupling step of recoupling the first unit and the second unit with each other, by which the process cartridge is remanufactured without remounting a toner seal to the developer supply opening, which was unsealed by removing the toner seal upon the start of use of the process cartridge.