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:
Jan. 05, 2010
Filed:
Mar. 17, 2004
Hisanori Kawaura, Yokohama, JP;
Nobuhito Inami, Yokohama, JP;
Hisanori Kawaura, Yokohama, JP;
Nobuhito Inami, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus is disclosed, the image forming apparatus including a storing unit that stores a program in accordance with which the image forming apparatus operates, an acquiring unit that acquires an update program from an external source, and an updating unit. Before updating the program stored in the storing unit, the updating unit determines whether the update program acquired by the acquiring unit is authentic by checking the electronic signature of the update unit. If the updating unit determines that the update program acquired by the acquiring unit is authentic, the updating unit updates the program stored in the storing unit. Accordingly, the image forming apparatus can improve the reliability of the update program.