Method and system for thermal graphic printing

B - Operations – Transporting – 41 – J

Patent

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B41J 2/325 (2006.01) B41J 33/14 (2006.01)

Patent

CA 2188417

A method of thermally transferring colorant from a movable ribbon (66) onto printable areas of a thermal print receptive sheeting (46). The method includes arranging a print head (44) so that its length is substantially parallel to the direction of travel of the thermal print receptive sheeting (46) and transferring colorant from the movable ribbon (66) to the sheeting (46) as the sheeting is stationary and the thermal print head (44) is moved in a second direction (x) substantially normal to the length of the thermal print head. The system includes a thermal print head (44), a transport for moving the thermal print receptive sheeting past the thermal print head in the first direction (y), and a mechanism that moves the print head in a second direction (x) normal to the first direction (y) when the print head is transferring colorant onto the sheeting.

Procédé utilisé pour transférer thermiquement un colorant d'un ruban mobile (66) sur des surfaces pouvant être imprimées d'un revêtement (46) acceptant l'impression thermique. Ce procédé consiste à placer une tête d'impression (44) de sorte que sa longueur soit sensiblement parallèle au sens de parcours du revêtement (46) acceptant l'impression thermique, et à transférer le colorant du ruban mobile (66) sur le revêtement (46) lorsque ce dernier est immobile et que la tête d'impression thermique (44) se déplace dans une deuxième direction (x) sensiblement perpendiculaire à la longueur de ladite tête d'impression thermique. Ce système comprend une tête d'impression thermique (44), un dispositif d'acheminement qui déplace dans la première direction (y) le revêtement acceptant l'impression thermique au-delà de la tête d'impression thermique, et un mécanisme qui déplace la tête d'impression dans une deuxième direction (x) perpendiculaire à la première direction (y) lorsque la tête d'impression transfère le colorant sur le revêtement.

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