Inkjet printing device

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/18 (2006.01) B41J 2/175 (2006.01)

Patent

CA 2723993

Drop-on-demand inkjet printing device (10) comprising a through-flow print head (20) having nozzles (22) and a fluid circulation system comprising a main reservoir (30), a supply buffer tank (38), a return manifold (64), wherein the main reservoir (30) is connected to the supply buffer tank (38) wherein the supply buffer tank (38) is in fluid communication with the nozzles (22) print head (20) the nozzles (22) being in fluid communication with the return manifold (38) wherein the return manifold (64) is connected to the main reservoir (30) and both are arranged in height with respect to the nozzles (22), wherein the supply buffer tank (38) is provided with a lockable conduit (56) connecting the supply buffer tank (38) to the main reservoir (30).

L'invention porte sur un dispositif d'impression à jet d'encre par goutte à la demande (10), comprenant une tête d'impression à écoulement traversant (20) comportant des buses (22) et un système de circulation de fluide comprenant un réservoir principal (30), un réservoir tampon d'alimentation (38), un collecteur de retour (64), le réservoir principal (30) étant relié au réservoir tampon d'alimentation (38). Le réservoir tampon d'alimentation (38) est en communication fluidique avec les buses (22) de la tête d'impression (20). Les buses (22) sont en communication fluidique avec le collecteur de retour (38). Le collecteur de retour (64) est relié au réservoir principal (30), et tous deux sont disposés en hauteur par rapport aux buses (22). Le réservoir tampon d'alimentation (38) comporte un conduit pouvant être bouché (56) et reliant le réservoir tampon d'alimentation (38) au réservoir principal (30).

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