An image heating apparatus having a first fixing device for heating an image on a recording material, and a second fixing device for heating the image on the recording material heated by the first fixing device, wherein at the start of an image heating process, the preparatory operation of the first fixing device is started earlier than the preparatory operation of the second fixing device.

 
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> Image forming apparatus featuring a defined relationship among an image length, transforming member length, and length of an electric field area

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