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. 25, 1990
Filed:
Aug. 14, 1989
Hidetake Tanaka, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming system includes a printer main body and optional units coupled thereto through a serial communication line. Each of the optional units has its own device identification code. The printer system main body includes a table memory for storing logical identification codes each of which is assigned one of the device identification codes. Each of the optional units includes a memory for storing its own device identification code and the logical identification codes which has been assigned to its own device identification code, and a discerning circuit for discerning whether one of the logical identification codes sent from the printer main body is identical to its own assigned logical identification code stored in the memory. The printer main body receives paper from one of the optional units related to one of the logical identification codes sent by the printer main body, and ejects paper to one of the optional units related to one of the logical identification codes sent by the printer main body.