Two sets of recording heads capable of applying ink of cyan (C), magenta (M),
and yellow (Y) and of forming relatively large dots and relatively small dots are
arranged in symmetry in a scanning direction and orders of colors C and M ejected
in respective dot sizes onto a pixel of a secondary color are set to symmetric
orders (CM and MC). This makes the application orders of ink for
either dot size symmetric in each pixel of secondary color and thus there is no
difference between application orders in formation of the pixel by either forward
or backward scanning, whereby occurrence of uneven color due to the application
orders of ink can be reduced.
