摘要:
In a fixing belt having at least a release layer and a metal layer formed of electroformed nickel, the electroformed nickel has, in its crystal texture, crystallites having an average size of 0.05 &mgr;m or more and 0.2 &mgr;m or less. This fixing belt has high durability, and an image heat fixing assembly using this fixing belt has high durability and high reliability and realizes low-energy heating by utilizing a heating element with a small heat capacity.
摘要:
To provide a high-durable fixing belt and an image fixing apparatus with high durability and high reliability for using a heating body needing a small amount of thermal capacity to enable heating with low energy. The fixing belt according to the present invention includes at least a release layer and a metal layer made by electroforming nickel, in which the electroformed nickel has a crystal orientation ratio 1(200)/1(111) of 3 or more, in which a surface(200) is preferentially grown, and a microvickers hardness of 280 to 450.
摘要:
A laminate film showing good durability under pressure and heat application, and suitably used as a fixing film for toner image fixation, is provided. Such a laminate film is provided by forming a polyimide resin layer on a metal base layer at a controlled imidation percentage of 70-93%.
摘要:
A fixing roller of an image fixing apparatus has an elastic layer on a core metal and has a thermal conductive fluororubber latex layer containing a mixture of fluororubber, fluororesin and thermal conductive fillers more outer side than the elastic. An intermediate layer made of silicone rubber having higher thermal conductivity than the thermal conductive fluororubber latex layer is provided between the thermal conductive fluororubber latex layer and the elastic layer, and the intermediate layer is configured so that an elastic parameter Y(=H×T) satisfies a relational expression: Y≧4200 where H (degree) is Asker-C hardness of the silicone rubber having higher thermal conductivity (500 g load) and T (μm) is a thickness of the silicone rubber having higher thermal conductivity.
摘要:
A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity λf in the longitudinal direction in a range of λf≧500 W/(m·k) being dispersed in not less than 5 vol. % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity λy in the longitudinal direction perpendicular to a recording material conveyance direction being λy≧2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity λ in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included and the solid rubber elastic layer is formed on an outer periphery of the core metal and the elastic layer containing the filler is formed on the outer periphery of the solid rubber elastic layer. As a result, a pressure roller which can suppress temperature rise in a region, where recording material does not pass, stabilizes conveyability, provides high endurance, provides high thermal conductivity and low hardness is provided.
摘要:
A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity λf in the longitudinal direction in a range of λf≧500 W/(m·k) being dispersed in not less than 5 vol % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity λy in the longitudinal direction perpendicular to a recording material conveyance direction being λy≧2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity λ in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included and the solid rubber elastic layer is formed on an outer periphery of the core metal and the elastic layer containing the filler is formed on the outer periphery of the solid rubber elastic layer. As a result, a pressure roller which can suppress temperature rise in a region, where recording material does not pass, stabilizes conveyability, provides high endurance, provides high thermal conductivity and low hardness is provided.
摘要:
To provide a tube-coated belt suited for a heat-fixing apparatus oriented to the high-quality fixation of color images and the like, downsizing and high-speed operation; and an organopolysiloxane adhesive composition of high adhesion durability suited for the manufacture of the heat-fixing apparatus and the tube-coated belt. There is provided a tube-coated belt having a resin tube on a silicone-rubber elastic layer through an adhesive layer, wherein the adhesive layer is composed of a cured product of an organopolysiloxane adhesive composition containing a specific organopolysiloxane component.
摘要:
An image heating apparatus has a non-rotatable heater with a metallic substrate together with a film that moves in contact with the heater and is accompanied by a backup roller which defines a nip with the heater via the film. The metallic substrate has a cylindrical shape and the heater has a first insulating layer on an outer peripheral surface of the metallic substrate, a heat generating resistor on the first insulating layer and a second insulating layer on the heat generating resistor.
摘要:
A blade for regulating the amount of a release oil to be supplied is placed so as to abut on a fixing member or on a member for controlling the amount of the release oil to be supplied to the fixing member. The abutting surface of the blade is composed of a silicone rubber layer. Alternatively, the blade includes a plate-shaped elastic body and a silicone rubber layer formed on the tip of the elastic body. A fixing device including the blade and an image-forming apparatus including the fixing device are also disclosed.
摘要:
A fixing-unit roller has a fixing roller and/or a pressure roller in which a composite material of an organopolysiloxane and a fluoroelastomer containing no fluorine resin or containing a fluorine resin is used as an elastic material of at least the outermost layer. The composite material has an island-in-sea structure wherein the organopolysiloxane stands as a sea phase and the fluoroelastomer containing no fluorine resin or containing a fluorine resin stands as an island phase. The particles of the island phase have a size ranging from 1 &mgr;m to 10 &mgr;m. The fixing-unit roller has superior toner releasability and superior scratch resistance and wear resistance.