Invention Grant
US08737866B2 Image forming apparatus including a controller to control a cooling device to cool the image forming apparatus
有权
图像形成装置包括控制器以控制冷却装置以冷却图像形成装置
- Patent Title: Image forming apparatus including a controller to control a cooling device to cool the image forming apparatus
- Patent Title (中): 图像形成装置包括控制器以控制冷却装置以冷却图像形成装置
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Application No.: US13251512Application Date: 2011-10-03
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Publication No.: US08737866B2Publication Date: 2014-05-27
- Inventor: Jun Shiori , Jun Yura , Yukiko Iwasaki , Masaki Sukesako , Hiroyuki Sugiyama , Kazuaki Kamihara , Hironobu Takeshita
- Applicant: Jun Shiori , Jun Yura , Yukiko Iwasaki , Masaki Sukesako , Hiroyuki Sugiyama , Kazuaki Kamihara , Hironobu Takeshita
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-230723 20101013
- Main IPC: G03G21/20
- IPC: G03G21/20 ; G03G15/00
Abstract:
An image forming apparatus includes a developing device including a developing roller to bear a developing agent to develop a latent image formed on an image bearing member, a cooling device to reduce an internal temperature of the image forming apparatus, a controller to calculate a travel distance of the developing roller to control the cooling device, and a memory unit to store the total travel distance of the developing roller. The controller calculates the total travel distance of the developing roller every Y minutes in the last X minutes, and a difference between the latest total travel distance of the developing roller and the total travel distance stored Z minutes ago by the memory unit to obtain the total travel distance during Z minutes and operate the cooling device for W minutes after image forming operation where the difference is equal to or greater than a threshold value M.
Public/Granted literature
- US20120093528A1 IMAGE FORMING APPARATUS Public/Granted day:2012-04-19
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