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. 12, 1993
Filed:
Oct. 15, 1992
Naruyuki Miyamoto, Osaka, JP;
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
In a drive device for an optical system of which scanning is carried out by means of a motor controlled for drive and stop by availability and unavailability of the power supply, any collision of the optical system moving by its inertia with its surrounding devices is not permitted, and furthermore even in restarting after the power supply is stopped during action of image forming, any collision of the optical system with its surrounding devices is not permitted. When the optical system is located in an area outside from a timing switch and a return switch, the motor is controlled for reversal braking so as to quickly reverse the direction of moving, thereby causing the motor to be usually stopped when the optical system returns to the safety area.