Dispositif de décoloration décolorant consécutivement les images sur une feuille, dispositif de gestion faisant que le dispositif de décoloration décolore consécutivement les images sur une feuille et système de décoloration incluant le dispositif de décoloration et le dispositif de gestion

摘要

According to an embodiment, a decoloring device is generally includes a sheet conveying path (2), a sheet feeding unit (12), a scanning unit (13), a communication unit, a decoloring unit (14), and a control unit. The sheet conveying path conveys a sheet to each unit in the device. The sheet feeding unit (12) feeds a sheet on which an image is formed with a decolorable colorant to the sheet conveying path (2) from a sheet-stacking part. The scanning unit (13) is provided downstream of the sheet feeding unit on the sheet conveying path, and scans an image on a sheet. The communication unit transmits image data of a preceding sheet scanned by the scanning unit to a management device that communicates with the decoloring device, and receives conveyance destination indication data which is produced by the management device based on image data and indicates the conveyance destination of a preceding sheet, and reception time indication data which indicates time taken for the decoloring device to receive the conveyance destination indication data. The decoloring unit (14) is provided downstream of the scanning unit on the sheet conveying path and decolors an image of a sheet. The control unit controls a preceding sheet to be conveyed to a predetermined conveyance destination based on the conveyance destination indication data, and controls a following sheet to be fed to the sheet conveying path at a timing at which the leading end of the following sheet does not run into the tail end of a preceding sheet based on the reception time indication data even if the preceding sheet is held until the conveyance destination indication data is received.