| 摘要 |
PURPOSE: An ink supply device is provided to improve noise by using a micro type vacuum pump and to remotely monitor an operation state of the ink supply device according to a preset condition through a monitoring unit of a situation room while maintaining a precise degree of vacuum at ultra-low energy consumption. CONSTITUTION: An ink supply device comprises a main control unit(10), a vacuum generating unit(20), a purge unit(30), an ink control unit(40), an ink storage tank(50), an ink pump(52), a display unit(60), and a monitoring connection unit(70). The main control unit controls the ink supply device according to a preset condition. The vacuum generating unit operates to maintain a preset vacuum state according to a control of the main control unit. The purge unit generates minute pressure according to the control of the main control unit when a nozzle is blocked or the state of the nozzle is bad. [Reference numerals] (10) Main control unit; (22) Vacuum pump; (24) Vacuum tank; (26) First negative pressure sensor; (32) Air filter; (34) Air regulator for low pressures; (36) Compression tank; (37) Constant pressure sensor; (42) Ink tank; (46) Second negative pressure sensor; (48) Ink level sensor; (50) Ink storage tank; (52) Ink pump; (60) Display unit; (70) Monitoring connection unit; (80) Monitoring unit; (90) Nozzle; |
