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:
Apr. 23, 2002
Filed:
Jul. 01, 1999
Applicant:
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/700 ;
U.S. Cl.
CPC ...
B41J 2/700 ;
Abstract
A scanning unit of a laser printer in which a cover is provided on a scanning motor so that the scanning motor is isolated from an outside and an inner portion of the cover is maintained in a vacuum state, and in which the scanning motor is provided with a magnetic bearing having a repulsive force in thrust and radial directions, and a magnetic bearing apparatus used in the scanning unit, whereby the noise is lowered and the structure of the scanning unit can be simplified.