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.

Date of Patent:
Feb. 15, 2011

Filed:

Mar. 04, 2008
Applicants:

Sang-uk Jeon, Yongin-si, KR;

Sung-won Kim, Seoul, KR;

Inventors:

Sang-uk Jeon, Yongin-si, KR;

Sung-won Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2006.01); G03G 21/00 (2006.01); G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image forming apparatus to remove a jammed printing medium and to prevent a transmission of fixing heat is provided. The image forming apparatus includes a fixing unit to fix a toner image into a printing medium when the toner image is transferred onto the printing medium, the fixing unit including a fixing frame on which a pair of fixing rollers are rotatably disposed, at least one discharge roller disposed on the fixing frame, and a discharge guide movable with respect to the fixing frame, and having a plurality of guide protrusions to guide the printing medium toward the discharge roller when the printing medium passes through the fixing unit. The fixing unit additionally includes a cover to cover the discharge roller and the discharge guide, and a plurality of heat dissipating ribs extending from an outer surface of the cover. The heat dissipating ribs have a height and are arranged at a gap from each other so as to prevent a user's hand from directly contacting the cover.


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