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. 20, 2010
Filed:
Jun. 07, 2005
Kwang-taek Lim, Kwangmyung-si, KR;
Byung-sun Ahn, Suwon-si, KR;
Kwang-taek Lim, Kwangmyung-si, KR;
Byung-sun Ahn, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A paper picking-up unit and an image forming apparatus having the same are provided. The paper picking-up unit includes a knock-up plate to stack paper thereon; a shaft disposed at a front end of the knock-up plate to rotate, a pick-up roller engaged with the shaft to rotate and pick-up the paper stacked on the knock-up plate, and a knock-up plate ascending and descending portion to raise and lower the knock-up plate according to the rotation of the pick-up roller. The pick-up roller includes a roller body engaged and rotatable with the shaft, and having a frictional layer to pick-up the paper by causing friction with the paper, a pair of roller housings to support opposite sides of the roller body such that the roller body does not move in a lengthwise direction of the shaft, and a damper disposed at an outer circumference of each roller housing to reduce noise caused by a collision of the roller housings and the knock-up plate.