An image forming apparatus comprising: a liquid discharge head (300; 301) configured to discharge a liquid onto a recording medium, the liquid including a metallic ink and a color ink; an irradiation unit configured to irradiate the liquid on the recording medium with light; a carriage on which the liquid discharge head (300; 301) and the irradiation unit are mounted; a moving unit configured to alternately perform a main scanning movement and a sub-scanning movement, the main scanning movement in which the carriage is moved relative to the recording medium in a main scanning direction, the sub-scanning movement in which the carriage is moved relative to the recording medium in a sub-scanning direction perpendicular to the main scanning direction, and a controller unit configured: to cause the liquid discharge head to discharge the metallic ink in a region of the recording medium in a former main scanning movement; to cause the liquid discharge head to discharge the color ink in the region in which the metallic ink has been discharged, in a latter main scanning movement after the former main scanning movement; and to cause the irradiation unit to irradiate the region in which the color ink has been discharged with the light, characterised in that the controller unit is further configured to cause the irradiation unit to irradiate the region in which the metallic ink has been discharged with the light, in an intermediate main scanning movement after the former main scanning movement and before the latter main scanning movement. a liquid discharge head (300; 301) configured to discharge a liquid onto a recording medium, the liquid including a metallic ink and a color ink; an irradiation unit configured to irradiate the liquid on the recording medium with light; a carriage on which the liquid discharge head (300; 301) and the irradiation unit are mounted; a moving unit configured to alternately perform a main scanning movement and a sub-scanning movement, the main scanning movement in which the carriage is moved relative to the recording medium in a main scanning direction, the sub-scanning movement in which the carriage is moved relative to the recording medium in a sub-scanning direction perpendicular to the main scanning direction, and a controller unit configured: to cause the liquid discharge head to discharge the metallic ink in a region of the recording medium in a former main scanning movement; to cause the liquid discharge head to discharge the color ink in the region in which the metallic ink has been discharged, in a latter main scanning movement after the former main scanning movement; and to cause the irradiation unit to irradiate the region in which the color ink has been discharged with the light, to cause the liquid discharge head to discharge the metallic ink in a region of the recording medium in a former main scanning movement; to cause the liquid discharge head to discharge the color ink in the region in which the metallic ink has been discharged, in a latter main scanning movement after the former main scanning movement; and to cause the irradiation unit to irradiate the region in which the color ink has been discharged with the light, characterised in that the controller unit is further configured to cause the irradiation unit to irradiate the region in which the metallic ink has been discharged with the light, in an intermediate main scanning movement after the former main scanning movement and before the latter main scanning movement.