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, 1992
Filed:
Aug. 07, 1991
Kiyoshi Ohshima, Yokohama, JP;
Shigeru Suzuki, Yokohama, JP;
Yoshiyumi Tamiya, Yokohama, JP;
Kenichi Shimizu, Kawasaki, JP;
Kazuaki Iizuka, Tokyo, JP;
Seiichi Miyakawa, Nagareyama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Image forming equipment for performing a predetermined image forming operation by use of a stepwise drive source such as a stepping motor or pulse motor. Either one of a recording medium and a record head is driven by a pulse motor, and whether or not it has reached a predetermined position is determined. While such a decision as to the position of the recording medium or the record head is under way, the displacement per step is changed over to a displacement per step smaller than a displacement to be effected while the predetermined image forming operation is under way.