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:
Dec. 01, 1998
Filed:
Jan. 29, 1997
Bong-Hwan Choi, Suwon, KR;
SamSung Electronics Co., Ltd., Suwon, KR;
Abstract
According to this invention, the contact and separation conditions between an OPC drum and a charger roller are controlled by utilizing a tension spring, which is connected between a frame and a bearing through which the shaft of the charger roller extends, for separating a driving gear of the OPC drum and a driven gear of the charger roller by a predetermined distance in order that the OPC drum and the charger roller can be separated while the OPC drum is at standstill, in order to prevent the charger roller from deforming or contaminating the OPC drum. The force of the tension spring is overcome by the force generated by the driving gear engaging the driven gear to enable the OPC drum and the charger roller to again contact each other while the OPC drum is rotated.