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:
Jul. 06, 1993
Filed:
Jun. 12, 1992
Applicant:
Inventor:
Yoshiyuki Tanimoto, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F / ;
U.S. Cl.
CPC ...
355204 ; 355285 ; 364132 ;
Abstract
A control device incorporated in image forming equipment and having at least a main control unit and a slave control unit. The main and slave control units each has a CPU (Central Processing Unit) and a ROM (Read Only Memory) for storing image formation control programs. To change the image formation control programs, only the ROM of the main control unit is replaced to thereby reduce the service time.