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Image forming method and apparatus utilizing a voltage to change the adhesiveness of the ink to perform an ink cleaning step

Image Number 2 for United States Patent #4972200.

An image forming method and apparatus is disclosed an ink capable of changing its adhesiveness corresponding to the polarity of a voltage applied thereto is provided. The ink is used for image formation by means of an image-forming apparatus with at least a pair of electroconductive members. The residual ink left between the pair of electroconductive members is removed by; and applying a voltage to the residual ink so as to reduce the adhesiveness of the ink disposed on one of the pair of electroconductive members, thereby to remove the ink from the electroconductive member and transfer it to another electroconductive member.

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