| 摘要 |
PURPOSE: A white ink circulation system and a circulation method thereof are provided to prevent the lowering of print quality since ink is separated into pigment and solvent. CONSTITUTION: A white ink circulation system comprises a main ink tank(20), a stirrer(22), a first pump(30), a second ink tank(50), ink level sensors(23,24,25,52,53,54), and a heating device(51). The main ink tank is connected to an ink supplier(10) to store ink. The stirrer is installed in the main ink tank. The first pump is connected to the main ink tank and transfers ink stored in the main ink tank. The supplementary ink tank is connected to the first pump. The ink level sensor is installed in the supplementary ink tank to measure the level of the ink.
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