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:
Apr. 25, 1995
Filed:
Apr. 22, 1993
Applicant:
Inventors:
Takashi Bisaiji, Yokohama, JP;
Yuji Sawai, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
347140 ; 347155 ;
Abstract
An image forming apparatus which feeds a predetermined bias current smaller than a threshold current to a semiconductor included in digital optics at least during image formation so as to enhance response. During image formation, the apparatus maintains the bias current at an adequate value.