Electromagnetic wave irradiation device and image formation apparatus

摘要

An electromagnetic wave irradiation device includes an irradiator which irradiates electromagnetic waves onto a liquid droplet which has been adhered to a recording medium, an irradiation controller which makes the irradiator irradiate the electromagnetic waves periodically such that a frequency of an irradiation period as a period in which the electromagnetic waves are irradiated by the irradiator is a predetermined frequency, and a time setting unit which sets a time ratio obtained by dividing a length of an irradiation time during which the electromagnetic waves are irradiated by the irradiator in the irradiation period by a length of a termination time during which the electromagnetic waves are not irradiated by the irradiator in the irradiation period to be a value of equal to or higher than 0.2 and equal to or lower than 2.