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:
Jun. 26, 2007
Filed:
Jan. 04, 2005
Hideaki Inukai, Nagano-ken, JP;
Nobuaki Takenaka, Nagano-ken, JP;
Hideaki Inukai, Nagano-ken, JP;
Nobuaki Takenaka, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image formation device has an image carrier in which are formed latent images, and a development device into which development units housing toner are detachably installed. When development units with a plurality of colors are installed in respective installation positions of the development device, the image formation device operates in color printing mode, and when at least one black development unit is installed in any among the plurality of installation positions, and at least one among the development units with the colors other than black is not installed, even if at least one development unit in the plurality of colors other than black is installed, the image formation device operates in monochrome printing mode. When any of the C, M, and Y development units is removed from color mode state, the image formation device operates in monochrome printing mode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile