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.

Date of Patent:
Mar. 31, 1981

Filed:

Sep. 05, 1979
Applicant:
Inventors:

Tetsuo Ogino, Nishinomiya, JP;

Takashi Sengo, Moriguchi, JP;

Toshio Yoshiyama, Sakai, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; G03G / ;
U.S. Cl.
CPC ...
219216 ; 733365 ; 219388 ; 236D / ; 432 60 ;
Abstract

A method of controlling dew formation preventing heaters for a copying apparatus which includes a first temperature detecting means for detecting the temperature inside the copying apparatus, with a first reference temperature (T1) being set, a second temperature detecting means for detecting the temperature inside the copying apparatus, with a second reference temperature (T2) higher than said first reference temperature (T1) being set, a humidity detecting means for detecting the humidity inside the copying apparatus, with a reference humidity (H1) being set, and a first group of heaters and a second group of heaters to be controlled by said temperature detecting means and said humidity detecting means. The method comprises the steps of:


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