Patent ID: 9085167
Filing Date: 2015-07-21
Classification: B41J

Abstract:
1. An arrangement to supply ink to a print head unit having a print head, said print head unit having an input and an output, in an ink printing apparatus, comprising: a back-pressure tank having ink and that is connected with said input of the print head unit via a supply line; a degassing unit for ink and having an input and an output; a first selector valve connected to said degassing unit input, said first selector valve when switched in a first position establishing a connection of the degassing unit with the output of the print head unit; a second selector valve connected to said degassing unit output, said second selector valve in a first position establishing a connection of the degassing unit with the back-pressure tank; the degassing unit having a pump, a filter, and a degassing member for ink; the print head unit having a plurality of said print heads and a distributor to supply the individual print heads with ink, and wherein the first selector valve is connected with an output of the distributor as said print head unit output; and the first selector valve when switched into a second position with the second selector valve switched into the first position filling the supply arrangement with ink.