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    • 27. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US08472853B2
    • 2013-06-25
    • US13094057
    • 2011-04-26
    • Takaaki AkamatsuShuichi TetsunoMasashi TanakaShogo KanKenichi Ogawa
    • Takaaki AkamatsuShuichi TetsunoMasashi TanakaShogo KanKenichi Ogawa
    • G03G15/20
    • G03G15/2025G03G2215/00531G03G2215/2035
    • An image forming apparatus includes an image forming portion for forming an unfixed toner image on a recording material; and a fixing portion for heat-fixing the unfixed toner image on the recording material while nip-conveying the recording material in a fixing nip, the fixing portion includes a first rotatable member contactable to the unfixed toner image, and a second rotatable member contacted to the first rotatable member to form the fixing nip between itself and the first rotatable member. The image forming apparatus is capable of setting a cleaning mode in which the fixing portion is cleaned by a cleaning sheet while nip-conveying the cleaning sheet in the fixing nip. When the cleaning mode is set, the image forming apparatus executes a plurality of types of cleaning operations in a period in which a single cleaning sheet passes through the fixing nip.
    • 图像形成装置包括用于在记录材料上形成未定影调色剂图像的图像形成部分; 以及固定部分,用于在定影辊隙中夹持记录材料的同时将未定影的调色剂图像热定影在记录材料上,所述固定部分包括可接触未定影调色剂图像的第一可旋转构件和与第二可旋转构件接触的第二可旋转构件 第一可旋转构件以在其自身和第一可旋转构件之间形成定影夹持部。 图像形成装置能够设置清洁模式,其中在定影辊隙中夹持输送清洁片时,清洁片被清洁。 当设置清洁模式时,图像形成装置在单个清洁片通过定影辊隙的时间段内执行多种类型的清洁操作。