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, 1992
Filed:
Sep. 28, 1990
Kouitirou Tutiyasu, Toyokawa, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A laser beam printer is provided with a sensor for controlling the timing of inscribing image data on a photosensitive member by means of a laser beam scanning the surface of the photosensitive member. The output signal of this sensor rises when the laser beam reaches a prescribed position and falls when the laser beam passes the prescribed position. The time between the rising time and the falling time is used as the standard. Inscription of image data in each scanning line is started after elapse of a prescribed time following the standard time. The standard time remains unchanged in spite of a possible change in the sensor output. On the photosensitive member, the position for starting inscription of each scanning line can be set at the fixed position with high accuracy.