Fusing device
阅读：896发布：2024-01-22
专利汇可以提供Fusing device专利检索，专利查询，专利分析的服务。并且A radiant-energy fusing device for fixing resinuous marking material to a support element is comprised of a partially enclosed chamber and a heater means formed of at least one thin metal strip having one surface which is treated to enhance heat emission in the wavelength region of absorption of the element and the other surface is treated to minimize all radiation.，下面是Fusing device专利的具体信息内容。
1. A radiant-energy fusing device for thermally fixing resinous marking powder to a support material comprising: a. a radiant power source comprising at least one metal strip having a first side treated for minimizing radiation therefrom and a second side treated for emitting radiation therefrom predominately at wavelengths above 2.5 Mu m. at energy levels capable of heating the support material and the marking powder; and b. drive means for effecting relative movement between said radiant power source and the support material to expose the support material and the resinous powder to the radiant energy for a limited time wherein the marking powder is heat fixed to the support material without causing thermal damage thereto.
2. A radiant-energy fusing device for thermally fixing resinous marking powder to a support material comprising: a. a radiant power source comprising at least one metal strip having a first side treated for minimizing radiation therefrom and a second side treated for emitting radiation therefrom predominately in the band from 2.5 Mu m. to 6 Mu m. at energy levels capable of heating the support material and the marking powder; and b. drive means for effecting movement of the support material relative to said radiant power source to expose the support material and the resinous powder to the radiant energy for a limited time wherein the marking powder is heat fixed to the support material without causing thermal damage thereto.
3. A radiant-energy fusing device for thermally fixing resinous marking powder to a support material comprising: a. a power supply; b. heater means comprising at least one metal strip having a first side treated for minimizing radiation therefrom and a second side treated so that radiation emanating therefrom is predominantly in the region from 2.5 Mu m. to 6 Mu m.; c. means for electrically connecting said power supply to said heater means wherein said metal strip is heated to a temperature in the range of approximately 400* C. to 500* C. for generating radiation at an intensity sufficient to heat the support material and the marking powder; and d. conveyor means for moving the support material relative to said metal strip whereby the radiation communicates with the support material and the marking powder for a limited time so that the marking powder is heat fixed to the support material without causing thermal damage thereto.
4. A radiant-energy fusing device for thermally fixing resinous marking powder to a support material comprising: a. a power supply; b. heater means for directing radiation toward the support material comprising an elongate strip having a first side polished to minimize radiation therefrom and a second side positioned facing the support material and coated with a suspension of carbonaceous material in an organic resin so that radiation emanating therefrom is predominantly in the band above 2.5 Mu m.; c. means for electrically connecting said power supply to said heater means wherein said strip is heated to a temperature in the range 400* C. to 500* C. for generating radiation at an intensity sufficient to heat the support material and the marking powder; and d. conveyor means for moving the support material relative to said heater means at a substantially uniform rate whereby the radiation communicates with the support material and the marking powder for a limited time so that the marking powder is heat fixed to the support material without causing thermal damage thereto.
5. A radiant-energy fusing device for thermally fixing resinous marking powder tO a support material comprising: a. a power supply; b. a partially enclosed chamber; c. a radiant power source comprising a plurality of electrically conductive strips mounted in a common plane within said chamber, each of said strips having a first side polished to minimize radiation therefrom and a second side facing the support material having a coating of siliceous compound so that radiation emanating therefrom is predominantly in the region of 2.5 Mu m. to 6 Mu m.; d. means connecting said plurality of conductive strips and said power supply in a series configuration for applying voltage thereto wherein said strips are heated to a temperature in the range of 400* C. to 500* C. for generating radiation in the direction of the support material at an intensity sufficient to heat the support material and the marking powder; and e. conveyor means for moving the support material transverse to said heater means, in a plane substantially parallel to said common plane, and at a substantially uniform rate whereby the radiation communicates with the support material and the marking powder so that the powder is heat fixed to the support material without causing thermal damage thereto.
6. A fusing device as described in claim 5 wherein said siliceous compound is quartz.
7. A fusing device as described in claim 5 wherein said siliceous compound is glass.
8. A fusing device as described in claim 5 wherein said siliceous compound is silica.
9. A fusing device as described in claim 5 wherein said strips are comprised of steel, each strip having a width less than approximately 5 cm. and a thickness of approximately 0.0025 cm.
10. A fusing device as described in claim 9 wherein the marking powder is thermally fixed to the support material when said strips are operated at an approximately 2 kw power dissipation level.
11. A fusing device as described in claim 5 wherein the radiation communicates with the support material and the marking powder for less than approximately 3 seconds.
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