Patent ID: 8538280
Filing Date: 2013-09-17
Classification: G06K,H04N

Abstract:
1. An image erasing apparatus comprising: a scanning unit that converts an image formed on a sheet into first image data; a memory unit that stores the first image data; an erasing unit that erases the image formed on the sheet; a stack unit that comprises a plurality of cassettes that holds the sheet subjected to the image erasure by the erasing unit; a return conveyance unit that conveys the sheet processed by the erasing unit to the scanning unit again; a reuse determining unit that determines, based on second image data of the sheet generated by the scanning unit after the sheet has been conveyed to the scanning unit again by the return conveyance unit, whether or not there is a residual image on the sheet subjected to the image erasure by the erasing unit; and a conveyance unit that conveys the sheet first to the scanning unit and then to the erasing unit, the conveyance unit also conveying a sheet determined to have the residual image to a first of the plurality of cassettes and conveying a sheet determined to not have the residual image to a second of the plurality of cassettes.