ERASABLE INK, METHOD OF ERASING IMAGE INCLUDING THE SAME, AND METHOD OF RECYCLING RECORDING MEDIUM USING THE ERASING METHOD

摘要

The invention provides a method for easily and promptly erasing an image (including a character) formed on a printed article with a low cost, and an apparatus employing such method. A printed article bearing an image formed on a surface including an inorganic pigment is exposed to a reactive gas generated by creeping discharge or corona discharge induced by a voltage applied between a pair of opposed electrodes, whereby the image is erased.