Ink bottle with puncturable diaphragm closure

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/175 (2006.01)

Patent

CA 2297238

A replaceable ink container or bottle (1) is disclosed for an ink jet printing apparatus in which the mouth of the bottle is closed by a puncturable diaphragm (19). A puncturing member (35) carried by the ink reservoir (21) of the ink jet printing apparatus pierces through the diaphragm upon the container being installed in the ink jet printing apparatus. Upon the puncturing member (35) puncturing through the diaphragm (19), the diaphragm sealingly engages the sides of the puncturing tube so as to substantially prevent the ink from leaking therepast, and the puncturing tube opens communication between the ink within the container and the ink reservoir thereby permitting ink to flow from the bottle into the ink reservoir via the puncturing member. An air path (37) is provided which is in communication with the atmosphere and with the reservoir so that ink from within the container and atmospheric air may be exchanged via the puncturing member so that ink is free to flow from the container into the reservoir, and so that the pressure within the container is maintained substantially at atmospheric pressure.

L'invention concerne un contenant ou une bouteille d'encre remplaçable (1) pour appareil d'impression à jet d'encre, dont l'orifice est fermé par un diaphragme perforable (19). Une pièce de perforation (35) supportée par le réservoir d'encre (21) de l'appareil d'impression à jet d'encre perce le diaphragme à l'installation du contenant dans l'appareil d'impression à jet d'encre. Au moment de la perforation du diaphragme (19) par la pièce prévue à cet effet (35), le diaphragme s'engage hermétiquement avec les côtés du tube de perforation proprement dit, de manière à empêcher sensiblement l'encre de s'échapper, et ledit tube met en communication l'encre du contenant et le réservoir d'encre, moyennant quoi l'encre s'écoule de la bouteille dans ce réservoir, via la pièce de perforation. Un trajet d'écoulement de l'air (37) est prévu pour mettre en relation l'atmosphère et le réservoir, de manière à permettre les échanges entre l'atmosphère et l'encre du contenant via la pièce de perforation: ainsi, l'encre s'écoule librement depuis le contenant dans le réservoir et la pression du contenant reste sensiblement équivalente à la pression atmosphérique.

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