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:
Oct. 06, 1998
Filed:
Feb. 27, 1997
Fumiya Hisa, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A damping member is disposed between a motor cover attached near a rotary polygon mirror drive motor so as to cover a rotary polygon mirror and an optical cover attached to an optical box so as to cover the motor cover and a (f-.theta.) optical lens group. The damping member can absorb a vibration generated in the motor cover when the rotary polygon mirror and the rotary polygon mirror drive motor are driven to thereby alleviate a transmission of a vibration to the optical cover. Furthermore, a heat generated from the rotary polygon mirror drive motor is radiated from the optical cover through the damping member to thereby prevent a heat from being filled in the inside of the optical cover. In this way, it is possible to avoid the vibration and the heat from affecting the (f-.theta.) lens group or the like as much as possible. Thus, the light beam can be focused on the photosensitive material under satisfactory condition.