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. 23, 2008
Filed:
May. 16, 2003
Toshiya Takahata, Nagano-ken, JP;
Ken Yoshizuka, Nagano-ken, JP;
Yoichiro Irie, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image forming apparatus and a computer system having an efficient communication system are achieved. The image forming apparatus etc. is provided with an antenna that is capable of wirelessly communicating both with the developing-unit element of the developing unit attached to the developing unit attach/detach section and with the photoconductor-unit element of the photoconductor unit attached to the photoconductor unit attach/detach section. Further, when R is an outermost diameter of a path traced by the developing units and r is an outermost diameter of a path traced by the elements when the rotating member is rotated with the developing units attached to the attach/detach sections, then a relationship R>r is satisfied.