Printing system

G - Physics – 03 – G

Patent

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Details

G03G 15/23 (2006.01) G03G 15/02 (2006.01) G03G 15/11 (2006.01)

Patent

CA 2332972

Duplex printing apparatus for printing on two sides of a sheet, the apparatus comprising: an impression roller on which the sheet is held during printing; an imager which prints an image on a first side of the sheet while it is being held on the impression roller; and a sheet inverter which removes the sheet from the impression roller, inverts the sheet and returns it to the impression roller for printing on a second side of the sheet by the imager, wherein the sheet is held on said impression roller referenced to a first edge thereof during the printing of the first side thereof and is also held on the impression roller referenced to said first edge during printing of the second side thereof.

La présente invention concerne un dispositif d'impression recto/verso destiné à imprimer les deux faces d'une feuille. Ce dispositif comprend un rouleau d'impression sur lequel la feuille est maintenue durant l'impression, un imageur qui imprime une image sur une première face de la feuille alors que celle-ci est maintenue sur le rouleau d'impression, et un inverseur de feuille qui enlève la feuille du rouleau d'impression, la retourne et la redépose sur le rouleau d'impression afin que l'imageur imprime une seconde face de la feuille. Dans ce dispositif, la feuille est maintenue sur le rouleau d'impression en référence à une première de ses extrémités lors de l'impression de la première face et elle est aussi maintenue sur le rouleau d'impression en référence à la même première de ses extrémités lors de l'impression de sa seconde face.

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