Patent ID: 9610783
Date: 2017-04-04
CPC Classifications: B41J

Claim:
1. A light irradiation device, comprising: a light irradiation section that applies light to photo-curable ink having been applied onto a medium; and a moving section that moves a relative position of the medium and the light irradiation section in a first direction; wherein the light irradiation section includes, a first light source row formed by arranging plural first light sources, irradiation intensity of which falls within a first predetermined range, in a second direction orthogonal to the first direction; and a second light source row located next to the first light source row and formed by arranging plural second light sources, irradiation intensity of which falls within a second predetermined range, in the second direction, the second predetermined range being different than the first predetermined range, the first predetermined range and the second predetermined range collectively maintaining a total energy of photoreception by the medium above a threshold for curing, with variations of the energy of photoreception across the medium in the second direction being within a predetermined amplitude.