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:
Sep. 10, 2002

Filed:

Jul. 10, 2001
Applicant:
Inventors:

Kyung-hwan Kim, Kyungki-do, KR;

Ki-ju Park, Kyungki-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/435 ; G03G 1/500 ; G03G 1/502 ;
U.S. Cl.
CPC ...
B41J 2/435 ; G03G 1/500 ; G03G 1/502 ;
Abstract

A laser printer including a printer main body having a mounting portion exposed by opening a front door which is mounted on a front side of the printer main body; a side door unit mounted on a side of the printer main body to be opened and closed and rotatably supporting a transfer roller; a developing unit removably mounted in the mounting portion and having a photosensitive drum in contact with the transfer roller when mounted in the mounting portion and an opening for exposing the photosensitive drum to the external environment; an interlock device for preventing the mounted developing unit from being; removed from the mounting portion when the side door unit is closed; and a shutter device associated in operation with the interlock device to close the opening when the side door unit is opened, and expose the opening when the side door unit is closed.


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