Patent ID: 7963641
Filing Date: 2011-06-21
Classification: B41J

Abstract:
1. An ink jet printer, comprising: an ink jet head comprising an ink passage and a nozzle communicated with the ink passage; a sub ink tank communicated with the ink passage of the ink jet head, the sub ink tank being elastically deformable; a carriage on which the ink jet head and the sub ink tank are mounted, the carriage capable of moving; a main body housing the ink jet head, the sub ink tank, and the carriage, the main body comprising a space for housing a main ink tank that is to be communicated with the sub ink tank; and a first ink pressurizing device that pressurizes ink within the main ink tank to the sub ink tank by applying a pushing force to the sub ink tank and releasing the pushing force after applying the pushing force when the carriage is located at a first position; and a second ink pressurizing device that pressurizes ink within the sub ink tank for causing the nozzle of the ink jet head to discharge ink by applying a pushing force to the sub ink tank when the carriage is located at a second position which is different from the first position; wherein the main ink tank is communicated with the sub ink tank when the carriage is located at the first position; wherein the main ink tank is not communicated with the sub ink tank when the carriage is located at the second position.