Invention Grant
US08150278B2 Image forming apparatus including a sound sensor to determine cleaning failure
有权
图像形成装置包括用于确定清洁失败的声音传感器
- Patent Title: Image forming apparatus including a sound sensor to determine cleaning failure
- Patent Title (中): 图像形成装置包括用于确定清洁失败的声音传感器
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Application No.: US12355116Application Date: 2009-01-16
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Publication No.: US08150278B2Publication Date: 2012-04-03
- Inventor: Osamu Satoh , Yasushi Nakazato , Kohji Ue , Masahide Yamashita , Jun Yamane , Shokichiro Hino
- Applicant: Osamu Satoh , Yasushi Nakazato , Kohji Ue , Masahide Yamashita , Jun Yamane , Shokichiro Hino
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-019339 20080130
- Main IPC: G03G21/00
- IPC: G03G21/00 ; G03G15/00
Abstract:
In an image forming apparatus, a cleaning blade cleans residual toner adhered on the surface of an image carrier and a sound sensor collects a sound generated inside a casing of the image forming apparatus. A determining unit determines, based on the sound collected by the sound sensor, whether cleaning failure has occurred in the cleaning blade. The determining unit makes the determination based on at least intensity of a first sound component that is a sound component of a first frequency and intensity of a second sound component that is a sound component of a second frequency different from the first frequency.
Public/Granted literature
- US20090190939A1 IMAGE FORMING APPARATUS Public/Granted day:2009-07-30
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