Patent ID: 11912037
Assignee: SCREEN HOLDINGS CO., LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 3:
4. The printing apparatus according to claim 3, further comprising:
a storage configured to store a plurality of circulation modes, the circulation mode being a combination of the drive of the supply pump, the drive of the connection pump and the drive of the collection pump; and
a liquid level information acquisitor configured to acquire the liquid levels of the ink stored in the supply vertical tank and the collection vertical tank
wherein the circulation controller determines the circulation mode corresponding to the liquid levels from the plurality of circulation modes based on the liquid level in the supply vertical tank and the liquid level in the collection vertical tank sub tank acquired by the liquid level information acquisitor and drives the supply pump, the connection pump and the collection pump in the determined circulation mode.