Reproduction apparatus with microwave detection

Details Reproduction apparatus with microwave detection Reproduction apparatus with microwave detection

G - Physics

03

G

G03G 21/04 (2006.01) G01N 22/00 (2006.01) G07D 7/10 (2006.01)

Patent

CA 2181682

A reproduction apparatus (14) for reproducing documents (12) which comprise a base material. The apparatus comprises a platen (10) for forming a scanning area and for positioning the documents (12) on its one side, scanning means (18) for scanning the scanning area, and means for obtaining a relative movement between the scanning means and the documents in order to allow for the scanning. The scanning means (18) comprise a microwave system which is constituted by microwave transceivers (26) arranged in an array such that they can detect the presence of particles (13) which have electromagnetic properties which are substantially different from the electromagnetic properties of the base material and which are incorporated in at least a part of the documents (12), irrespective of the position of the documents (12) on the scanning area.

Appareil de reproduction (14) conçu pour reproduire des documents (12) qui comprennent un matériau de base. Ledit appareil comporte une platine (10) conçue pour former une zone de balayage et pour positionner les documents (12) sur un de ses côtés, un moyen de balayage (18) pour balayer la zone de balayage, et un moyen permettant d'obtenir un mouvement relatif entre le moyen de balayage et les documents afin d'effectuer un balayage. Le moyen de balayage (18) comporte un système à hyperfréquences constitué d'émetteurs-récepteurs (26) d'hyperfréquences disposés en réseau de sorte qu'ils puissent détecter la présence de particules (13) présentant des propriétés électromagnétiques sensiblement différentes de celles du matériau de base, et qui sont intégrées dans au moins une partie du document (12), quelle que soit la position des documents (12) sur la zone de balayage.

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