发明申请
- 专利标题： IMAGE FORMING APPARATUS
- 专利标题（中）： 图像形成装置
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申请号： US13251512申请日： 2011-10-03
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公开(公告)号： US20120093528A1公开(公告)日： 2012-04-19
- 发明人: Jun SHIORI , Jun Yura , Yukiko Iwasaki , Masaki Sukesako , Hiroyuki Sugiyama , Kazuaki Kamihara , Hironobu Takeshita
- 申请人： Jun SHIORI , Jun Yura , Yukiko Iwasaki , Masaki Sukesako , Hiroyuki Sugiyama , Kazuaki Kamihara , Hironobu Takeshita
- 优先权： JP2010-230723 20101013
- 主分类号： G03G21/20
- IPC分类号： G03G21/20
摘要：
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.