Patent ID: 8894172

Claim:
An image forming apparatus comprising: a head that discharges colored radiation curable ink and colorless radiation curable ink onto a recording medium, the colored radiation curable ink and the colorless radiation curable ink being cured upon irradiation with electromagnetic waves; an section that irradiates the radiation curable ink on the recording medium with electromagnetic waves; and a controller that causes the colorless radiation curable ink to be discharged from the head to a unit area where an amount of discharge of the colored radiation curable ink is equal to or less than a predetermined threshold amount of discharged colored radiation curable ink, wherein the head is able to discharge a dot of the colored radiation curable ink and the colorless radiation curable ink, wherein a plurality of dots of the colored radiation curable ink formed in the unit area when the amount of discharge of the colored radiation curable ink is equal to or less than the predetermined threshold amount of discharged colored radiation curable ink are separated from each other, wherein a plurality of dots of the colorless radiation curable ink are separated from each other, and wherein the plurality of dots of colored radiation curable ink are in contact with the plurality of dots of the colorless radiation curable ink.