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    • 6. 发明专利
    • Image forming device
    • 图像形成装置
    • JP2011006248A
    • 2011-01-13
    • JP2009153779
    • 2009-06-29
    • Konica Minolta Business Technologies Incコニカミノルタビジネステクノロジーズ株式会社
    • ISOHARA HIDEOHIRAMATSU TORUKASUGA AKIO
    • B65H5/06B65H29/70G03G15/00
    • G03G15/235G03G15/20G03G15/6576G03G2215/00662G03G2215/00945G03G2215/00949G03G2215/20
    • PROBLEM TO BE SOLVED: To provide an image forming device which properly corrects a curl caused in paper in double-sided printing.SOLUTION: This image forming device 1 includes a guide member 70 arranged in a carrying passage to a paper ejecting roller 57 from a fixing part 50 for correcting the curl of the paper PA, and a carrying speed control unit for controlling an upstream side carrying speed being a carrying speed of the paper PA by the fixing part 50 arranged on the upstream side of the guide member 70 and a downstream side carrying speed being a carrying speed of the paper PA by the paper ejecting roller 57 arranged on the downstream side of the guide member 70. The carrying speed control unit sets the downstream side carrying speed larger than the upstream side carrying speed in printing a first surface of a double-sided printing mode, and sets the upstream side carrying speed and the downstream side carrying speed so that the difference between both of the upstream side carrying speed and the downstream side carrying speed becomes smaller than the difference between both in the printing of the first surface in printing of a second surface of the double-sided printing mode.
    • 要解决的问题:提供一种适当地校正双面打印中的纸张卷曲的图像形成装置。解决方案:该图像形成装置1包括引导构件70,引导构件70布置在从一个纸张排出辊57的输送通道中 用于校正纸PA的卷曲的固定部件50以及用于通过布置在引导部件70的上游侧的固定部件50来控制作为纸张PA的传送速度的上游侧传送速度的传送速度控制部件, 下游侧承载速度是布置在引导构件70的下游侧的排出辊57的纸张PA的运送速度。运送速度控制单元将下游侧运送速度设定为大于打印中的上游侧运送速度 第一表面的双面印刷模式,并且设定上游侧承载速度和下游侧承载速度,使得上游侧承载速度 并且下游侧承载速度变得小于在双面打印模式的第二表面的打印中第一表面的打印中的两者之间的差。