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. 15, 2010
Filed:
Sep. 28, 2007
Hideo Kikuchi, Yokohama, JP;
Hideo Kikuchi, Yokohama, JP;
Ricoh Company, Ltd, Tokyo, JP;
Abstract
A novel device unit is detachably provided to an image forming apparatus having a control unit configured to control the image forming apparatus. The device unit includes a CPU configured to communicate with the control unit; and a memory configured to store property information including information provided through a communication between the CPU and the control unit. The memory includes a write-prohibited area configured to prohibit an information overwriting; a first writable area configured to allow an information writing; and a second writable area configured to controllably allow a one time information overwriting. A recycling system includes a reader/writer configured to communicate with an IC tag provided to the device unit, and a personal computer configured to communicate with the IC tag via the reader/writer and to perform a recycle processing of the device unit.