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. 15, 1987
Filed:
Jul. 17, 1986
Applicant:
Inventors:
Katsushi Horihata, Osaka, JP;
Yoshizo Kawamori, Fujiidera, JP;
Assignee:
Mita Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; G11B / ; H01S / ;
U.S. Cl.
CPC ...
346108 ; 369116 ; 346160 ; 372 38 ;
Abstract
In a laser beam printer wherein the quantity of light of the laser beam is fed back to maintain the light quantity at a constant value, the temperature sensor means is provided for detecting the temperature of the photosensitive member, and the feedback circuit is so constructed that the light quantity setting reference signal of the circuit is adjusted in accordance with the output of the temperature sensor means. Consequently, the quantity of light of the laser beam is adjusted according to the temperature-sensitivity characteristics of the photosensitive member to give a constant image density.