A liquid ejection device includes a plurality of deep nozzle lines each having a plurality of nozzles in a predetermined direction, for ejecting a first liquid, and a smaller number of light nozzle lines than the number of the deep nozzle lines, each having a plurality of nozzles in the predetermined direction, for ejecting a second liquid having a lighter color depth than the first liquid. A controller forms deep dots on pixels on a medium using the plurality of deep nozzle lines, and forms light dots on a smaller number of pixels than the number of the pixels on which the deep dots are formed using the smaller number of light nozzle lines.

 
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