| 摘要 |
A printing apparatus configured to perform printing by supplying an ink from a main tank to a sub tank and ejecting the ink in the sub tank from a printing head is allowed to execute an agitating operation to appropriately eliminate sedimentation of a pigment component without being complicated in structure and increased in cost. The printing apparatus includes a diaphragm provided in an ink supply path, and a driving mechanism for driving the diaphragm to thereby change an internal volume thereof. In the ink supply path, a resistance value of a flow path from the diaphragm to the printing head is set greater than that of a flow path from the diaphragm to the sub tank. The diaphragm is driven to generate bidirectional ink flow between the diaphragm and the sub tank to eliminate pigment component sedimentation at a bottom of the sub tank. |
