CONDUCTIVE SPONGE RUBBER ROLLER AND COLOR IMAGE FORMING APPARATUS
PROBLEM TO BE SOLVED: To provide a conductive rubber roller as a transfer roller, used inside an intermediate transfer belt of a color image forming apparatus, the conductive sponge roller slightly sticking to the transfer belt. SOLUTION: By the addition of an inorganic oxide to a composition of spo...
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| creator | OKUDA MITSURU UMEKI ERIKA |
| description | PROBLEM TO BE SOLVED: To provide a conductive rubber roller as a transfer roller, used inside an intermediate transfer belt of a color image forming apparatus, the conductive sponge roller slightly sticking to the transfer belt. SOLUTION: By the addition of an inorganic oxide to a composition of sponge rubber of the conductive sponge rubber roller, having a rubber layer formed around a conductive core material, the area of the contact of the intermediate transfer belt with a rubber main component of the conductive rubber roller is reduced. The inorganic oxide and carbon black are added under the condition where 25.5 vol.%≤a+b≤54.5 vol.%, wherein (a) is the amount of the added oxide and (b) is the amount of the added carbon black. COPYRIGHT: (C)2006,JPO&NCIPI |
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SOLUTION: By the addition of an inorganic oxide to a composition of sponge rubber of the conductive sponge rubber roller, having a rubber layer formed around a conductive core material, the area of the contact of the intermediate transfer belt with a rubber main component of the conductive rubber roller is reduced. The inorganic oxide and carbon black are added under the condition where 25.5 vol.%≤a+b≤54.5 vol.%, wherein (a) is the amount of the added oxide and (b) is the amount of the added carbon black. 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SOLUTION: By the addition of an inorganic oxide to a composition of sponge rubber of the conductive sponge rubber roller, having a rubber layer formed around a conductive core material, the area of the contact of the intermediate transfer belt with a rubber main component of the conductive rubber roller is reduced. The inorganic oxide and carbon black are added under the condition where 25.5 vol.%≤a+b≤54.5 vol.%, wherein (a) is the amount of the added oxide and (b) is the amount of the added carbon black. 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| subjects | BEARINGS BLASTING CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOLOGRAPHY LIGHTING MAGNETOGRAPHY MECHANICAL ENGINEERING PHOTOGRAPHY PHYSICS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS |
| title | CONDUCTIVE SPONGE RUBBER ROLLER AND COLOR IMAGE FORMING APPARATUS |
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