发明名称 |
Image forming apparatus for cooling a pressing member pressing against an image heating member and forming a nip therebetween |
摘要 |
An image forming apparatus includes a rotatable heater for heating a toner image on a recording material in a nip; a rotatable pressor for pressing against the heater to form the nip; a moving mechanism for spacing the heater and the pressor from each other; a detector for detecting a temperature of the pressor; a cooler for cooling the pressor; a changer for changing the rotational speed of the pressor; and an executor for executing, when the temperature of the pressor reaches an upper limit temperature during execution of an image formation job of continuously forming the images, a cooling mode for cooling the pressor by the cooler in a state that the pressor and the heater are spaced from each other while rotating the pressing member at a second rotational speed higher than a first rotational speed which is a speed during the execution of the job. |
申请公布号 |
US8306446(B2) |
申请公布日期 |
2012.11.06 |
申请号 |
US20100772360 |
申请日期 |
2010.05.03 |
申请人 |
ITO YOSHIKUNI;NAKAYAMA TOSHINORI;CHIYODA YASUHARU;CANON KABUSHIKI KAISHA |
发明人 |
ITO YOSHIKUNI;NAKAYAMA TOSHINORI;CHIYODA YASUHARU |
分类号 |
G03G15/20 |
主分类号 |
G03G15/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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