Color image forming apparatus and color toner
AssigneeFujitsu Limited
InventorsYasushige Nakamura, Shinichi Yaoi, Tomoaki Tanaka, Yoshimichi Katagiri
Life of this patent
Estimating the term…
Abstract
A color image forming apparatus forms a color image on a recording medium by using a toner comprising a binding resin, a coloring agent and infrared ray absorbent, and a light source for causing the toner to melt. The light source has a plurality of light emission peaks having wavelengths of λ1, λ2, λ3, . . . , λn in a range of 500 nm through 3000 nm. Setting is made such that the following relationship is satisfied: |λ1−Λ1|<100 nm, and, also, |λ2−Λ2|<100 nm, where Λ1 and Λ2 denote the wavelengths of absorption peak wavelengths of the infrared ray absorbent.
Claims15
A color image forming apparatus which forms a color image on a recording medium by using a toner comprising at least binding resin, coloring agent and infrared ray absorbent, and a light source for causing the toner to melt,
- wherein:
- said light source has at least one light emission peak in a range of 500 nm through 3000 nm;
- and
- setting is made such that the following relationship is satisfied:
- |λ−Λ|<100 nm
- where:
- λ denotes the wavelength of said light emission peak;
- and
- Λ denotes the wavelength of an absorption peak wavelength of said infrared ray absorbent.
A color image forming apparatus which forms a color image on a recording medium by using a toner comprising at least binding resin, coloring agent and infrared ray absorbent, and a light source for causing the toner to melt,
- wherein:
- said light source has a plurality of light emission peaks having wavelengths of λ1, λ2, λ3, . . . , λn in a range of 500 nm through 3000 nm;
- and
- setting is made such that at least the following relationship is satisfied:
- |λ1−Λ1|<100 nm, and, also, |λ2−Λ2|<100 nm
- where Λ1 and Λ2 denote wavelengths of absorption peak wavelengths of said infrared ray absorbent.
A color toner which is melted by optical energy from a light source having a plurality of light emission peaks having wavelengths of λ1, λ2, λ3, . . . , λn in a range of 500 nm through 3000 nm, and comprises at least binding resin, coloring agent and infrared ray absorbent, wherein the following relationship is satisfied:
- |λ1−Λ1|<100 nm, and, also, |λ2−Λ2|<100 nm
- where Λ1 and Λ2 denote absorption peak wavelengths of said infrared ray absorbent.
Dependencies are inferred from the claim text.