1.
    发明专利
    未知

    公开(公告)号:DE69817709T2

    公开(公告)日:2004-03-11

    申请号:DE69817709

    申请日:1998-07-17

    Applicant: XEROX CORP

    Abstract: A method comprising: providing a facility with at least one controlled access electronic printing machine; printing original documents with said controlled access electronic printing machine, wherein printed images formed thereby arise from marking materials containing at least one photoactive additive; equipping all uncontrolled access reprographic devices within said facility with a secure illumination source capable of exposing an object document with sufficient intensity to activate said photoactive additive; and illuminating said object document with said secure illumination source of said uncontrolled access reprographic device, wherein said object documents having original document images printed thereon cannot be copied or scanned in a normal copy or scan illumination interval.

    2.
    发明专利
    未知

    公开(公告)号:DE69817709D1

    公开(公告)日:2003-10-09

    申请号:DE69817709

    申请日:1998-07-17

    Applicant: XEROX CORP

    Abstract: A method comprising: providing a facility with at least one controlled access electronic printing machine; printing original documents with said controlled access electronic printing machine, wherein printed images formed thereby arise from marking materials containing at least one photoactive additive; equipping all uncontrolled access reprographic devices within said facility with a secure illumination source capable of exposing an object document with sufficient intensity to activate said photoactive additive; and illuminating said object document with said secure illumination source of said uncontrolled access reprographic device, wherein said object documents having original document images printed thereon cannot be copied or scanned in a normal copy or scan illumination interval.

Patent Agency Ranking