| 摘要 |
An ultraviolet rays emitter for irradiating ultraviolet rays on an ink of an ultraviolet curing type which is adhered onto a recording medium includes a plurality of semiconductor light emitting elements for emitting ultraviolet rays and a support member for mutually supporting these semiconductor light emitting elements in a matrix with optical axes thereof in almost parallel, and the row or column of the semiconductor light emitting element on the support member is set to have a structure in which two kinds of semiconductor light emitting elements having different wavelength ranges or more are arranged properly in order. Alternatively, an ultraviolet rays emitter according to another example is set to have a structure in which a plurality of semiconductor light emitting elements is mutually supported with a support member in a positional relationship in which the optical axes of the respective elements are mutually inclined in such a manner that the irradiation regions of ultraviolet rays emitted from the semiconductor light emitting elements are overlapped on a recording medium.
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