| 摘要 |
PURPOSE:To enable the use of always clean ink by preventing the clogging of fine pores provided to an ink supply sheet, by providing first and second suction devices and forcibly sucking ink unused in printing to filter the same by a filter. CONSTITUTION:An ink supply sheet 1, first and second suction devices 2, 3, a pump device 5, an ink reflux nozzle 6 and a heating device 9 are mounted. The first suction device 6 and a heating device 9 are mounted. The first suction device 2 always sucks the ink unused in printing in the ink supply sheet 1 and the second suction device 3 sucks impurities such as dust present in an ink tank 7 along with the ink and the ink is filtered by a filter 4. An ink reflux nozzle 6 is connected to the pump 5 driving the suction devices 2, 3 so as to be positioned immediately in front of the ink supply sheet 1 and the filling of the fine pores of the ink supply sheet 1 with the ink is made certain. |
