| 摘要 |
A liquid ejecting apparatus includes a plurality of nozzles; a moving portion which moves the plurality of nozzles to the medium; and a control portion which controls the plurality of nozzles and the moving portion. The plurality of nozzles include a first-type nozzle group which records dots using a nozzle use rate which is less than a first threshold value; a second-type nozzle group which records dots using a nozzle use rate which is the first threshold value or more, and less than a second threshold value; and a third-type nozzle group which records dots using a nozzle use rate of the second threshold value or more. The control portion executes multipass recording in which recording of dots is completed using main scanning passes of N times, ejects the liquid in order of ejecting of the first-type nozzle group and the third-type nozzle group with respect to a first region, ejects the liquid using the second-type nozzle group with respect to a second region which is close to the first region, and ejects the liquid in order of ejecting of the third-type nozzle group and the first-type nozzle group with respect to a third region which is close to the second region, but is not close to the first region. |
| 主权项 |
1. A liquid ejecting apparatus comprising:
a head having a plurality of nozzles which eject liquid onto a medium, the plurality of nozzles being aligned in a nozzle row direction, the plurality of nozzles having a first nozzle, an xth nozzle, a (x+1)th nozzle, a (x+1+y)th nozzle, a (x+1+y+1)th nozzle, and a (x+1+y+1+z)th nozzle, each of the x, y and z being integer of 1 or more; a moving member which relatively moves the head to the medium; and a controller which is configured to control the head and the moving member, wherein the head includes:
a first-type nozzle group being provided from the first nozzle located at a first end of the head to the xth nozzle which is located away from the first nozzle of a first predetermined distance in the nozzle row direction,a second-type nozzle group being provided from the (x+1)th nozzle to the (x+1+y)th nozzle which is located away from the first nozzle of a second predetermined distance in the nozzle row direction, anda third-type nozzle group being provided from the (x+1+y+1)th nozzle to the (x+1+y+1+z)th nozzle which is located away from the first nozzle of a third predetermined distance in the nozzle row direction, wherein the controller is configured to:
execute multipass recording in which recording of dots on a main scanning line is completed using main scanning passes of N times (N is integer of 2 or more),elect the liquid in order of ejecting of the first-type nozzle group and the third-type nozzle group with respect to a first region on the medium,eject the liquid using the second-type nozzle group with respect to a second region which is close to the first region,eject the liquid in order of ejecting of the third-type nozzle group and the first-type nozzle group with respect to a third region which is close to the second region and which is laterally shifted from the first region, and wherein a first absolute value A of a first moving-average nozzle usage ratio in the first-type nozzle group, a second absolute value B of a second moving-average nozzle usage ratio in the second-type nozzle group and a third absolute value C of a third moving-average nozzle usage ratio in the third-type nozzle group satisfy the following requirement:
C<B<A. |
