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US 6,555,280 B2Granted
Color toner for flash fixing
AssigneeFujitsu Limited
InventorsYuzo Horikoshi, Katsuji Ebisu, Takahiro Kashikawa, Katsura Sakamoto
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Abstract
A color toner to which flash light is applied and is fixed on a recording medium at least includes a binding resin, a colorant, and a infrared absorbent. PAS intensity thereof obtained from integration of infrared PAS spectrum obtained based on photoacoustic spectroscopy (PAS) analytical measurement through a range between 800 and 2000 nm is in a range between 0.01 and 0.2 assuming that the value of carbon black is 1.
Claims8
A color toner comprising:
- a binding resin;
- a colorant;
- and
- an infrared absorbent,
- wherein:
- said color toner is fixed on a recording medium by flash light;
- and
- a PAS intensity of said color toner obtained from integration of an infrared PAS spectrum obtained according to photoacoustic spectroscopy (PAS) analytical measurement through a range between 800 and 2000 nm falls within a range between 0.01 and 0.2 assuming that the value of carbon black is 1.
5 more elements
An image forming method comprising the steps of:
- a) applying flash light to a color toner which comprises at least a binding resin, a colorant and an infrared absorbent;
- and
- b) thereby fixing said color toner onto a recording medium,
- wherein a PAS intensity (S) of said color toner obtained from integration of an infrared PAS spectrum obtained according to photoacoustic spectroscopy (PAS) analytical measurement through a range between 800 and 2000 nm and an optical energy (E) of the flash light satisfy a requirement of the following formula (1):
- 0.03≦E·S≦0.15 (1).
2 more elements
An image forming method comprising the steps of:
- a) applying flash light to a color toner which comprises at least a binding resin, a colorant and an infrared absorbent;
- and
- b) thereby fixing said toner onto a recording medium,
- wherein an energy of the flash light is set in a range between 0.5 and 2.5 J/cm2, and a light application time thereof is set in a range between 500 and 3000 μs.
1 more element
Dependencies are inferred from the claim text.