The present invention provides an ink jet recording apparatus having an
ink jet recording head provided with a plurality of nozzles through which
inks of a plurality of colors are ejected, a cap to be detachably brought
into close contact with a nozzle face in which holes of the plurality of
nozzles are formed, and ink-suction means which sucks an ink within the
ink jet recording head by way of the cap. The apparatus is configured
such that contact angles .theta.a of the inks with respect to the nozzle
face and contact angles .theta.b of the inks with respect to the cap have
a relation of .theta.a>.theta.b; and the angles .theta.a are
50.degree. or larger, and differences between the angles .theta.a and the
angles .theta.b are 40.degree. or larger.