US 9,804,539 B2 · Image forming apparatus and image forming method

Abstract

The present invention provides an image forming apparatus provided with a fixing apparatus including an infrared irradiation unit for irradiation of a recording medium, on which a liquid developer including a colorant and a cationic polymerizable monomer having a C—H bond is placed, with infrared light, and an ultraviolet irradiation unit for irradiation of the liquid developer with ultraviolet light, wherein when a peak wavelength due to the C—H bond in an infrared absorption spectrum of the cationic polymerizable monomer is defined as λ1 and a half-value wavelength at which a spectral radiant energy density of infrared light emitted from the infrared irradiation unit is 50% (when two of such half-value wavelengths are present, a half-value wavelength at a longer wavelength) is defined as λ2, the peak wavelength λ1 is located at a shorter wavelength than the half-value wavelength λ2.

Claims9

Dependent claims

An image forming apparatus provided with a fixing apparatus comprising:

an infrared irradiation unit for irradiating with infrared light a recording medium bearing a liquid developer comprising a colorant and a cationic polymerizable monomer having a C-H bond:
and
an ultraviolet irradiation unit for irradiating with ultraviolet light the liquid developer, wherein
when a peak wavelength due to the C-H bond in an infrared absorption spectrum of the cationic polymerizable monomer is defined as λ1 and a half-value wavelength at which a spectral radiant energy density of infrared light emitted from the infrared irradiation unit is 50%, when two of such half-value wavelengths are present, a half-value wavelength at a longer wavelength, is defined as λ2, the peak wavelength λ1 is located at a shorter wavelength than the half-value wavelength λ2.

1 more element

An image forming method comprising:

a step of irradiating with infrared light a recording medium bearing a liquid developer comprising a colorant and a cationic polymerizable monomer having a C—H bond, and thereafter irradiating the liquid developer with ultraviolet light to thereby fix the liquid developer to the recording medium, wherein
when a peak wavelength due to the C—H bond in an infrared absorption spectrum of the cationic polymerizable monomer is defined as λ1 and a half-value wavelength at which a spectral radiant energy density of the infrared light is 50%, when two of such half-value wavelengths are present, a half-value wavelength at a longer wavelength, is defined as λ2, the peak wavelength λ1 is located at a shorter wavelength than the half-value wavelength λ2, and
a wavelength distribution of the infrared light overlaps an absorption wavelength distribution of the cationic polymerizable monomer.

Dependencies are inferred from the claim text.

Image forming apparatus and image forming method

Life of this patent

Image forming apparatus and image forming method

Life of this patent

Abstract

Claims9