B - Operations – Transporting – 44 – F
Patent
B - Operations, Transporting
44
F
B44F 1/12 (2006.01) B41M 3/14 (2006.01) B41M 5/165 (2006.01) B42D 15/10 (2006.01)
Patent
CA 2229397
A tamper evident document for use with an impact printer having an inked ribbon, which document comprises, a substrate having a first surface and a second surface, the first surface being adapted to receive a principal visible colored image by transfer from the inked ribbon of an impact printer and being substantially free from color forming compositions which react to form visible colored images, the second surface being coated with a self-contained pressure-sensitive chromogenic composition capable of reacting to form a visible colored mirror image on the second surface, the substrate being sufficiently translucent such that the second visible colored mirror image could be viewed from the first surface, if said second visible image were not totally blocked by said principal visible image, so as to determine whether the principal and second visible colored mirror images are in register.
Document anti-frauduleux à utiliser avec une imprimante à impact. Le document comprend un support muni d'une première et d'une deuxième surfaces. La première surface est adaptée à recevoir une première image couleur visible par transfert du ruban encreur d'une imprimante à impact et est essentiellement dépourvue de substances chromogènes qui réagissent de façon à former des images couleur visibles. La deuxième surface est recouverte d'une composition chromogène pressosensible autonome pouvant réagir de façon à former une image couleur retournée visible sur la deuxième surface. Le support est suffisamment translucide pour que la deuxième image retournée puisse être vue de la première surface, si la deuxième image visible n'est pas entièrement cachée par la première image, de façon à déterminer si les première et deuxième images sont alignées.
Chang John C.h.
Hoffmann Donald J.
Kirby Eades Gale Baker
Wallace Computer Services Inc.
LandOfFree
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