Invention Grant
US08699201B2 Relay failure detecting device, power-supply device, image forming apparatus, relay failure detecting method, and computer program product
有权
继电器故障检测装置，电源装置，图像形成装置，继电器故障检测方法和计算机程序产品
- Patent Title: Relay failure detecting device, power-supply device, image forming apparatus, relay failure detecting method, and computer program product
- Patent Title (中): 继电器故障检测装置，电源装置，图像形成装置，继电器故障检测方法和计算机程序产品
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Application No.: US13043667Application Date: 2011-03-09
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Publication No.: US08699201B2Publication Date: 2014-04-15
- Inventor: Yuusuke Kohri , Takeshi Sano
- Applicant: Yuusuke Kohri , Takeshi Sano
- 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: JP2010-063238 20100318; JP2011-010193 20110120
- Main IPC: H01H47/22
- IPC: H01H47/22
Abstract:
A relay failure detecting device includes: an opening-closing unit that is driven by a coil for opening and closing a current pathway; a detecting unit that detects a current value of a current flowing in the coil; an opening-closing instructing unit that outputs an instruction signal to instruct opening and closing of the opening-closing unit; and a failure detecting unit that detects a failure in the opening-closing unit by using the current value output by the detecting unit within a predetermined period of time starting from when the instruction signal is output.
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