Illumination control method of LED lamp for ink-jet printer

A illumination control method of LED lamps for ink-jet printers, comprising:

• a recording head in which a plurality of ink discharge printing ranges are formed in a printing direction and an LED lamp in which a plurality of light emitting diodes are arranged at the rear side of the recording head with respect to the printing direction, wherein in an ink-jet printer in which the light-emitting diodes are divided into plural areas and the light amount for each area can be individually controlled by a controller, and among the light-emitting diodes divided into plural areas, the light amount of the light-emitting diode that first scans a glossy printed surface is set to a light amount that does not cause ink curing, the light amount of the light-emitting diode of the area that first scans is set so that the total light amount on the glossy printed surface is less than or equal to the critical exposure amount of the integrated illuminance.