A printer including a first liquid discharger, a second liquid discharger, a curing unit, and a controller is provided. The first and second liquid dischargers discharge active-energy-ray-curable colored and transparent liquids, respectively. The curing unit emits an active energy ray. The controller causes the first liquid discharger to scan multiple times and discharge the colored liquid on a medium, causes the curing unit to cure the colored liquid on the medium after each scan of the first liquid discharger to print a colored image with the colored liquid on the medium, causes the second liquid discharger to discharge the transparent liquid on the colored image, causes the curing unit to cure the transparent liquid on the colored image to form a transparent layer on the colored image, and controls a thickness of the transparent layer in accordance with the number of scan of the first liquid discharger.