Patent ID: 8764159
Filing Date: 2014-07-01
Classification: B41J

Abstract:
1. A head cleaning device comprising: a cleaning liquid holding unit that includes a cleaning liquid holding surface which is inclined with respect to a horizontal plane, corresponding to a liquid ejection surface of an ink jet head inclined with respect to a horizontal plane, and has a structure in which the cleaning liquid holding surface and the liquid ejection surface are disposed so as to have a gap therebetween, in a state where the cleaning liquid holding surface and the liquid ejection surface face each other; a relative movement unit that relatively moves the inkjet head with respect to the cleaning liquid holding unit, while the liquid ejection surface of the ink jet head and the cleaning liquid holding surface face each other, and the gap between the liquid ejection surface and the cleaning liquid holding surface is constantly maintained; and a cleaning liquid supply unit that includes a cleaning liquid supply port for supplying cleaning liquid from the upper portion of an inclination of the cleaning liquid holding surface to the cleaning liquid holding surface, in a state where the cleaning liquid holding surface and the liquid ejection surface face each other, wherein, with respect to a movement direction of the ink jet head relative to the cleaning liquid holding unit, an outer edge of the cleaning liquid supply port is disposed: