Patent ID: 9315024
Filing Date: 2016-04-19
CPC Classification: B41J

Claim Text:
1. A droplet discharging method comprising: alternately repeating a droplet discharging operation of discharging droplets onto a medium by using a first head and a second head that move in an X direction or in a −X direction and a medium moving operation of moving the medium in a Y direction intersecting the X direction to form a plurality of dots on a first region of the medium, a second region which is positioned in a −Y direction from the first region to be connected to the first region, and a third region which is positioned in the −Y direction from the second region to be connected to the second region, wherein the dots are formed on the first region by using the first head and the second head so that, when a ratio of the number of dots formed by using the second head to the sum of the number of dots formed by using the first head and the number of dots formed by using the second head is referred to as a second head use ratio in rows of the dots which are lined up in the X direction, the second head use ratio is constant, the dots are formed on the second region by using the first head and the second head to cause the second head use ratio to be increased from a value less than a first set value to a value greater than a second set value greater than the first set value in the −Y direction in a plurality of rows of the dots lined up in the X direction, and the dots are formed on the third region by using the second head.