Patent ID: 9694594
Date: 2017-07-04
CPC Classifications: B41J

Claim:
1. A printing apparatus including an ink ejecting head which ejects an ink and an ink reservoir section which reserves the ink, the printing apparatus comprising: a first circulation flow path which includes a circulation outgoing path in which the ink which is supplied to the ink ejecting head from the ink reservoir section flows and a circulation return path in which the ink which returns to the ink reservoir section from the ink ejecting head flows; a heating section which is provided in the circulation outgoing path and heats the ink which flows in the circulation outgoing path; a degassing section which is provided in the circulation outgoing path and degases the ink which flows in the circulation outgoing path; a branching section which branches the circulation outgoing path between the heating section and the ink ejecting head; a branch path in which the ink which returns to the ink reservoir section from the branching section flows; and a control section capable of switching between a first state in which the ink which is heated in the heating section is returned to the ink reservoir section through the first circulation flow path and a second state in which the ink is returned to the ink reservoir section through the branch path, the degassing section being located between the ink reservoir section and the branching section, the control section setting a mode to the second state in at least a portion of a period from a start-up of the printing apparatus until the ink is ejected from the ink ejecting head to carry out image formation and setting the mode to the first state during the image formation.