Abstract: Provided is a fixing belt that is used in a fixing device, the fixing device nipping, between a heated fixing belt and a roller, a recording material in which an unfixed toner image is formed on a surface, and fixing the toner image onto the recording material, and the fixing belt has a fixing temperature that causes a tipping point in a characteristic of a change in glossiness of the toner image that has been fixed with respect to a change in the fixing temperature.

Abstract: Provided is a fixing belt that is used in a fixing device, the fixing device nipping, between a heated fixing belt and a roller, a recording material in which an unfixed toner image is formed on a surface, and fixing the toner image onto the recording material, and the fixing belt has a fixing temperature that causes a tipping point in a characteristic of a change in glossiness of the toner image that has been fixed with respect to a change in the fixing temperature.

Abstract: An image forming method includes developing an electrostatic latent image formed on a photoreceptor with a toner, transferring a formed toner image onto a recording material, and fixing the toner image on a surface of the recording material, in which a storage elastic modulus of the toner is 2.0×106 Pa or more at 70° C. and 4.0×104 Pa or less at 90° C., and in the fixing, a fixing belt having an elastic layer which contains a material having a storage elastic modulus of 1.0×106 Pa or more and 2.5×106 Pa or less at 200° C. is used.

Abstract: An image forming method includes developing an electrostatic latent image formed on a photoreceptor with a toner, transferring a formed toner image onto a recording material, and fixing the toner image on a surface of the recording material, in which a storage elastic modulus of the toner is 2.0×106 Pa or more at 70° C. and 4.0×104 Pa or less at 90° C., and in the fixing, a fixing belt having an elastic layer which contains a material having a storage elastic modulus of 1.0×106 Pa or more and 2.5×106 Pa or less at 200° C. is used.

Abstract: A resistance heating element contains a heat-resistant resin and conductive stainless steel fiber coated with a film, and satisfies the following expression (1): 1?(r1/r0)?1.03, where r0 represents the initial resistance value of the resistance heating element, and r1 represents the resistance value of the resistance heating element after allowed to stand at 30° C. and a relative humidity of 80% for one week.

Abstract: An endless heat-generation belt 10 includes a heat-generation layer 11 and a pair of metal electrodes 12 and 12. The heat-generation layer 11 is composed of an electroconductive resin composition and the heat-generation layer 11 can be heated by supplying electricity. The metal electrode 12 is bonded to the heat-generation layer 11 with an electroconductive adhesive 13. The electroconductive adhesive 13 contains an adhesive matrix and an electroconductive filler. The adhesive matrix is a modified silicone resin or an epoxy resin. The heat-generation belt 10 has excellent heat resistance, durability, and resistance stability, and it can be used for a fixing device of an image forming apparatus.

Abstract: A resistance heating element contains a heat-resistant resin and conductive stainless steel fiber coated with a film, and satisfies the following expression (1): 1?(r1/r0)?1.03, where r0 represents the initial resistance value of the resistance heating element, and r1 represents the resistance value of the resistance heating element after allowed to stand at 30° C. and a relative humidity of 80% for one week.

Abstract: An object is to provide an intermediate transfer belt and a method for producing the same which inhibits fine toner dots in white area in an environment of low temperature and low humidity and further, inhibits roughness of image with long-term use. An intermediate transfer belt for an electrophotographic image forming apparatus comprising a polyimide having a dispersed conductive filler, wherein the polyimide contains a unit structure represented by Formula (1); wherein X represents a group selected from Formulas (a) to (e), n, m, l each represents 0 or 1, and at least one of m and l is 1, wherein p in Formula (c) and q in Formula (e) each is an integer of 1 to 5.

Abstract: A heat-producing element for a fixing device to carry out heat-fixing after a toner image having been formed using a pulverized toner is transferred on an image support, a heat-producing element for a fixing device in which a thin-leaf graphite-pulverized material of a volume specific resistance of 10?6 ?·cm to less than 10?2 ?·cm is incorporated in a heat-resistant resin as a conductive material.

Abstract: A sheet heater that includes a sheet article composed of a conductive resin composition containing a conductive material and a resin, and a pair of metal plate electrodes, each of the electrodes being bonded to each of the ends of the sheet article, wherein when elements of the sheet article are detected at a portion 1 ?m depth from a surface of the metal plate electrode, a peak area ratio of silicon (Si) to metal ion (M) is 1/100 to 1, the metal ion M being most abundant of all metal ions detected at the portion, the peaks being obtained by measuring an X ray generated at the portion by applying an X ray to the portion with the scanning electron microscope-energy dispersive X-ray spectrometer.

Abstract: Disclosed is a heat-producing fixing belt of a cylindrical shape which is composed of a heat-producing layer, an elastic layer, and a releasing layer in this sequential order from the inner side, and the heat-producing layer contains a polyimide resin and fabric containing carbon fiber and a pair of electrodes to supply power to the heat-producing layer making contact with the fabric containing carbon fiber are provided on both ends of the cylindrical shape.

Abstract: Disclosed are a heating fixing belt and a fixing device by which good long-term durability is achieved, and a process for forming the heating fixing belt. The heating fixing belt comprises a resistance heating layer formed of a resin in which at least a conductive substance is dispersed, a parting layer laminated on the resistance heating layer and a pair of electrodes for supplying electric power to the resistance heating layer, which are respectively stacked and provided on both end portions of the resistance heating layer in such a manner that at least parts thereof come into contact with the resistance heating layer, wherein the electrodes are each composed of a metal mesh sheet. In the heating fixing belt, the metal mesh sheet forming the electrode preferably has an aperture ratio of 10 to 60.

Abstract: An endless heat-generation belt 10 includes a heat-generation layer 11 and a pair of metal electrodes 12 and 12. The heat-generation layer 11 is composed of an electroconductive resin composition and the heat-generation layer 11 can be heated by supplying electricity. The metal electrode 12 is bonded to the heat-generation layer 11 with an electroconductive adhesive 13. The electroconductive adhesive 13 contains an adhesive matrix and an electroconductive filler. The adhesive matrix is a modified silicone resin or an epoxy resin. The heat-generation belt 10 has excellent heat resistance, durability, and resistance stability, and it can be used for a fixing device of an image forming apparatus.

Abstract: A sheet heater that includes a sheet article composed of a conductive resin composition containing a conductive material and a resin, and a pair of metal plate electrodes, each of the electrodes being bonded to each of the ends of the sheet article, wherein when elements of the sheet article are detected at a portion 1 ?m depth from a surface of the metal plate electrode, a peak area ratio of silicon (Si) to metal ion (M) is 1/100 to 1, the metal ion M being most abundant of all metal ions detected at the portion, the peaks being obtained by measuring an X ray generated at the portion by applying an X ray to the portion with the scanning electron microscope-energy dispersive X-ray spectrometer.

Abstract: Disclosed is a heat-producing fixing belt of a cylindrical shape which is composed of a heat-producing layer, an elastic layer, and a releasing layer in this sequential order from the inner side, and the heat-producing layer contains a polyimide resin and fabric containing carbon fiber and a pair of electrodes to supply power to the heat-producing layer making contact with the fabric containing carbon fiber are provided on both ends of the cylindrical shape.

Abstract: Disclosed are a heating fixing belt and a fixing device by which good long-term durability is achieved, and a process for forming the heating fixing belt. The heating fixing belt comprises a resistance heating layer formed of a resin in which at least a conductive substance is dispersed, a parting layer laminated on the resistance heating layer and a pair of electrodes for supplying electric power to the resistance heating layer, which are respectively stacked and provided on both end portions of the resistance heating layer in such a manner that at least parts thereof come into contact with the resistance heating layer, wherein the electrodes are each composed of a metal mesh sheet. In the heating fixing belt, the metal mesh sheet forming the electrode preferably has an aperture ratio of 10 to 60.

Abstract: An object is to provide an intermediate transfer belt and a method for producing the same which inhibits fine toner dots in white area in an environment of low temperature and low humidity and further, inhibits roughness of image with long-term use. An intermediate transfer belt for an electrophotographic image forming apparatus comprising a polyimide having a dispersed conductive filler, wherein the polyimide contains a unit structure represented by Formula (1); wherein X represents a group selected from Formulas (a) to (e), n, m, l each represents 0 or 1, and at least one of m and l is 1, wherein p in Formula (c) and q in Formula (e) each is an integer of 1 to 5.

Abstract: A heating fixation belt is disclosed, comprising an insulating resin layer containing fibers, a heating layer containing an electrically conductive material dispersed in a resin and having a pair of feed electrodes provided on both ends and a releasing layer, which are sequentially provided in that order. An image forming apparatus comprising the heating fixation belt is also disclosed.

Abstract: A heat-producing element for fixing a toner image on an image support, in which the heat-producing element comprises a heat-resistant resin and electrically-conductive fiber having a shape stipulated by conditions 1, 2 and 3. 1. Aspect ratio: 0.025?(A/B)?0.25 2. Diameter of electrically-conductive fiber (A): 0.5 ?m?A?3 0 ?m 3. Length of electrically-conductive fiber (B): 5.

Abstract: A heat-producing element for a fixing device to carry out heat-fixing after a toner image having been formed using a pulverized toner is transferred on an image support, a heat-producing element for a fixing device in which a thin-leaf graphite-pulverized material of a volume specific resistance of 10?6 ?·cm to less than 10?2 ?·cm is incorporated in a heat-resistant resin as a conductive material.