Patent ID: 7909451

Claim:
A printing apparatus which performs recording on a recording paper, comprising: a liquid jetting device which includes a first nozzle group which jets a photo-curable ink onto the recording paper, and a second nozzle group which jets a photo-curable liquid onto the recording paper; a light irradiating device which irradiates light to the recording paper; a transporting mechanism which transports the recording paper along a transportation path including a jetting position at which the ink and the liquid are jetted by the liquid jetting device, an irradiation position at which the light is irradiated by the light irradiating device, and a discharge position at which the recording paper is discharged; and a controller which controls an operation of the liquid jetting device, an operation he light irradiating device, and an operation of the transporting mechanism; wherein in the transportation path, the discharge position is located downstream of the jetting position and the irradiation position; wherein the controller controls the liquid jetting device, the light irradiating device, and the transporting mechanism such that the ink is jetted onto an image formation area of the recording paper, on which the image is to be recorded and the liquid is jetted onto an adhesion area of the recording paper at which the recording paper is adhered to another recording paper, and that a light having a light-intensity not less than a minimum light-intensity required for curing the ink is irradiated to the image formation area onto which the ink has been jetted, and a light having a light-intensity less than a minimum light-intensity required for curing the liquid is irradiated to the adhesion area onto which the liquid has been jetted or that a light is not irradiated onto the adhesion area; and wherein the printing apparatus further comprises: a paper holding mechanism which holds a plurality of recording papers transported by the transporting mechanism to the discharge position in a state that the recording papers are stacked and aligned mutually; and a liquid curing device which cures the liquid discharged onto the adhesion area of the recording papers which are held by the paper holding mechanism.