Patent ID: 8696086
Filing Date: 2014-04-15
Classification: B41J

Abstract:
1. An ink-jet printer which jets a plurality of color inks, comprising: an ink supply source which supplies the plurality of color inks; an ink-jet head which is connected to the ink supply source and in which a plurality of nozzles are formed, the plurality of nozzles forming a plurality of nozzle groups from which the plurality of color inks are jetted respectively; a maintenance mechanism which performs a discharge operation of the ink-jet head so that a liquid in the ink-jet head is discharged from the plurality of nozzles; a controller which controls the ink-jet head and the maintenance mechanism; a filling liquid which is filled in the ink-jet head before the ink-jet printer is used for the first time, which is different from the plurality of color inks, and which contains a color material of a color; and a first memory storing information regarding a color difference between one of the plurality of color inks supplied from the ink supply source to the ink-jet head and a replaced-ink which is formed by replacing a part of the filling liquid with the one of the plurality of color inks supplied into the ink-jet head and which is formed by mixing a residual part of the filling liquid that is not replaced and the one of the plurality of color inks; wherein, before the ink-jet printer is used for the first time, the controller controls the maintenance mechanism and the ink-jet head to perform an initial discharge operation including one of an initial purge and an initial flushing so that an amount of a liquid discharged from the ink-jet head during the initial discharge operation is adjusted based on the information regarding the color difference read from the first memory.