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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Bibliographische Detailangaben
Hauptverfasser:	OKUDA MITSURU, UMEKI ERIKA
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	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