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:
Sep. 22, 1992

Filed:

Oct. 18, 1989
Applicant:
Inventors:

Yasuhiro Matsuura, Osaka, JP;

Hiroaki Kojima, Osaka, JP;

Hirofumi Hasegawa, Osaka, JP;

Naoto Ohmori, Osaka, JP;

Yukio Yamada, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
355308 ; 3461601 ;
Abstract

An image forming system for copiers, printers and the like having a main body which forms images on sheets of paper inserted therein and a plurality of sheet feeding units selectively attachable to the main body. The main body has a timing roller set which transports the papers to an image forming position with an appropriate timing, and each of the sheet feeding units has a paper feeding system with a take-up roller for supplying papers from the unit directly to the timing roller set without intermediate rollers in the main body. The system further includes side and bottom sheet feeding units selectively attachable to the main body and the side unit includes a guide for guiding sheets from the bottom unit into the main body. The system further includes a separate sheet guide mountable on the bottom unit for guiding sheets into the main body when the side unit is absent from the system. The invention permits the paper feeding construction of the image forming systems to be easily and freely changed as a whole.


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