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:
Nov. 30, 2004
Filed:
Jan. 27, 2003
Applicant:
Inventor:
Atsuo Tokunaga, Kanagawa, JP;
Assignee:
Ricoh Company, Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/385 ; G03G 1/504 ;
U.S. Cl.
CPC ...
B41J 2/385 ; G03G 1/504 ;
Abstract
At least two image formation devices are provided. Each image formation device has a writing optical device that forms a latent image on a photosensitive member and a developing device that develops the latent image into a visual image. If the writing optical device in one of the two image formation devices is broken down, then the latent image is formed using the writing optical device in other of the two image formation devices. The latent image is developed to obtain the visual image using the developing device of the image formation device with the broken writing optical device.