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:
Feb. 20, 1979
Filed:
Nov. 14, 1977
Applicant:
Inventors:
Hiroshi Katakura, Fuchu, JP;
Hidehiko Kurotsu, Hino both of, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
219358 ; 219216 ; 219388 ; 355 / ;
Abstract
A method of using a temperature controller for a fixing device of a copying machine in which the lamp heaters are subject to on-off control by a temperature detector to maintain the temperature at a constant level after the start of the copying cycle but before the paper reaches the fixing device. At some predetermined time prior to the paper reaching the fixing device, the temperature controller is deactivated and full power applied to the lamps until the paper leaves the fixing device at which time the temperature is again controlled by the temperature detector.