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.:

US 6999709 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 14, 2006

Filed:

Oct. 20, 2003
Applicant:

Geun-yong Park, Gyeonggi-do, KR;

Inventor:

Geun-yong Park, Gyeonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01);
U.S. Cl.
CPC ...
Abstract

A transfer unit of an electrophotographic image forming apparatus. The transfer unit includes a transfer belt which is rotated while contacting a photosensitive drum, a driving assembly having a driving roller supported by a plurality of main frames to rotate the transfer belt, and a steering roller portion supported by the plurality of main frames and which pushes the transfer belt to tighten the transfer belt. The apparatus further includes a transfer backup roller assembly having a plurality of transfer backup rollers which are installed inside the transfer belt to support a plurality of auxiliary frames and support the transfer belt, and a plurality of guide rollers supported by the plurality of auxiliary frames and to guide the transfer belt, and a transfer backup roller ascending and descending portion which ascends and descends the transfer backup roller assembly towards the driving assembly.


Find Patent Forward Citations

Park, Geun-yong. (2006). Transfer unit of electrophotographic image forming appraratus (U.S. Patent No. 6999709). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6999709

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…