Abstract: A cylindrical body includes a cylindrical member, made by forming a metal plate into a cylindrical shape such that the two end faces of the metal plate face each other, and a nonmetallic adhesive member bonding the two end faces together. The two end faces each include an adhesive part, and the adhesive member is disposed between the adhesive parts of the end faces. The adhesive part of one end face is not parallel to the adhesive part of the other end face. Each end face also includes a contact part which is in contact with the contact part of the other end face.

Abstract: A stretch blow-molded article comprising: a polyester; a wax; and at least one selected from the group consisting of an inorganic layered double hydroxide and zeolite.

Abstract: A stretch blow-molded article comprising: at least one selected from the group consisting of an inorganic layered double hydroxide and zeolite: a styrene-based resin; and a wax.

Abstract: A method of producing a stretch-blow-molded article, comprising: a process of producing a preform from a melt-kneaded product of a resin mixture comprising at least a wax, a styrene-based resin and a carbodiimide compound; and a process of stretch-blow molding the preform to produce the stretch-blow-molded article.

Abstract: An image processing apparatus includes a fixing unit including a belt, and a heater configured to heat the belt and including a substrate and a heating layer that is formed on the substrate, and a controller configured to shut off the heater if no current flows through the belt.

Abstract: An image forming apparatus according to one or more embodiments includes a fixing device and a controller. The fixing device includes a first heating source and a second heating source. The second heating source has a heating width greater than that of the first heating source. The first and second heating sources have different heating characteristics in response to temperature increases. The controller selects one of the first heating source and the second heating source according to a size of a sheet on which printing is to be performed.

Abstract: A heating device includes a rotatable film, a heater disposed inside the film and including a substrate that extends along a first direction and having two surfaces opposite to each other, and a heater element on one of the surfaces of the substrate, and a heat conductor including a first portion contacting the other surface of the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the other surface of the substrate. A width of the second portion is wider than the heater element in the second direction.

Abstract: A stretch blow-molded article comprising: a first polyester; and a second polyester having a structure different from a structure of the first polyester, wherein an intrinsic viscosity value of the first polyester is 0.60 to 0.74 dL/g, and the second polyester has a structure corresponding to terephthalic acid and a structure corresponding to bisphenol A.

Abstract: A method for producing a blow-molded article, the method comprising: a step of producing a preform from a resin mixture comprising at least a wax, a thermoplastic polyester and a carbodiimide compound; and a step of blow-molding the preform to produce a blow-molded article.

Abstract: A heating device includes a rotatable film, a heater disposed inside the film and including a substrate that extends along a first direction and having two surfaces opposite to each other, and a heater element on one of the surfaces of the substrate, and a heat conductor including a first portion contacting the other surface of the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the other surface of the substrate. A width of the second portion is wider than the heater element in the second direction.

Abstract: According to at least one embodiment, an image forming apparatus includes a heater and a controller. The heater is configured to generate heat. The controller is configured to control AC power to the heater so that a part of the AC power which exceeds a threshold voltage is not applied to the heater.

Abstract: A fixing unit or device that can be used in an image forming apparatus includes a first heater element that is formed of a material that increases in electrical resistance with increases in temperature. A controller of the fixing unit is configured to vary a duty ratio of electric power applied to the first heater element during a start-up operation in which the temperature of the first heater element is raised to a target operating temperature. By varying the duty ratio during the start-up operation, changes in the resistance of the first heater element with the heating can be compensated. For example, the duty ratio can be increased during the course of the start-up to achieve the target operating temperature faster.

Abstract: According to at least one embodiment, an image forming apparatus includes a heater and a controller. The heater is configured to generate heat. The controller is configured to control AC power to the heater so that a part of the AC power which exceeds a threshold voltage is not applied to the heater.

Abstract: An image forming apparatus according to one or more embodiments includes a fixing device and a controller. The fixing device includes a first heating source and a second heating source. The second heating source has a heating width greater than that of the first heating source. The first and second heating sources have different heating characteristics in response to temperature increases. The controller selects one of the first heating source and the second heating source according to a size of a sheet on which printing is to be performed.

Abstract: A fixing unit or device that can be used in an image forming apparatus includes a first heater element that is formed of a material that increases in electrical resistance with increases in temperature. A controller of the fixing unit is configured to vary a duty ratio of electric power applied to the first heater element during a start-up operation in which the temperature of the first heater element is raised to a target operating temperature. By varying the duty ratio during the start-up operation, changes in the resistance of the first heater element with the heating can be compensated. For example, the duty ratio can be increased during the course of the start-up to achieve the target operating temperature faster.

Abstract: An image processing apparatus includes a fixing unit including a belt, and a heater configured to heat the belt and including a substrate and a heating layer that is formed on the substrate, and a controller configured to shut off the heater if no current flows through the belt.

Abstract: An image forming apparatus according to one or more embodiments includes a fixing device and a controller. The fixing device includes a first heating source and a second heating source. The second heating source has a heating width greater than that of the first heating source. The first and second heating sources have different heating characteristics in response to temperature increases. The controller selects one of the first heating source and the second heating source according to a size of a sheet on which printing is to be performed.

Abstract: An image processing apparatus includes a fixing unit including a fixing belt, and a heater configured to heat the fixing belt and including a substrate and a heating layer that is formed on the substrate, and a controller configured to, upon detecting an absence of a current flowing through the fixing belt, control the heater to not generate heat.

Abstract: A heating device includes a rotatable film, a heater disposed inside the film and including a substrate that extends along a first direction and having two surfaces opposite to each other, and a heater element on one of the surfaces of the substrate, and a heat conductor including a first portion contacting the other surface of the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the other surface of the substrate. A width of the second portion is wider than the heater element in the second direction.

Abstract: A heating device includes a rotatable film, a heater including a substrate that extends along a first direction and having two surfaces opposite to each other, and a heater element on one of the surfaces of the substrate, and a heat conductor having first and second surfaces and including a first portion contacting the other surface of the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the other surface of the substrate. A thickness of the first portion of the heat conductor from the first surface to the second surface is greater than a thickness of the second portion from the first surface to the second surface.