Electrophotography – Diagnostics – Image forming component
Reexamination Certificate
2011-06-14
2011-06-14
Gray, David M (Department: 2852)
Electrophotography
Diagnostics
Image forming component
C399S024000
Reexamination Certificate
active
07962054
ABSTRACT:
An image forming apparatus is provided. The image forming apparatus includes an acquiring unit that acquires a plurality of types of operation control information of the image forming apparatus that indicate deterioration of a toner in the image forming apparatus or deterioration of a component of the image forming apparatus. An index value calculating unit calculates an index value indicating a state of the image forming apparatus based on the acquired operation control information. An abnormality judging unit judges whether the image forming apparatus abnormality has occurred and predicts an occurrence of a failure that requires maintenance of the image forming apparatus due to deterioration of the toner in the image forming apparatus or deterioration of the component of the image forming apparatus based on the index value.
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Hirai Shuji
Nakazato Yasushi
Oku Takenori
Satoh Osamu
Shimizu Hitoshi
Curran Gregory H
Gray David M
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh Company Limited
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