摘要:
A fixing device includes an endless, flexible fixing member, a metal member, a heater, a pressing member, a temperature detector, and a supporting member. The fixing member is rotatably provided in the fixing device to heat a toner image thereon. The metal member is fixedly mounted in the fixing device so as to be opposite an inner circumferential surface of the fixing member, to maintain the fixing member in a substantially circularly loop shape. The heater is disposed near the metal member to heat the metal member. The pressing member is rotatably pressed against an outer circumferential surface of the fixing member to form a nip portion between the pressing member and the fixing member. The temperature detector is disposed in contact with the metal member, to detect a temperature of the metal member. The supporting member is disposed between the heater and the temperature detector to support the temperature detector.
摘要:
A heater includes a base layer, a heat generator mounted on the base layer, and a slide layer mounted on the base layer. A sliding face of a counterpart slides over the slide layer. The slide layer is made of a material containing fluorine and includes a slide face that contacts the sliding face of the counterpart. The slide face of the slide layer has a surface roughness that is greater than a surface roughness of the sliding face of the counterpart.
摘要:
A fixing device includes a flexible, endless belt-shaped fixing member that rotates in a predetermined direction of rotation, a substantially cylindrical metal heat conductor provided inside a loop formed by the fixing member and facing an inner circumferential surface of the fixing member, a pressing member that presses the fixing member against the metal heat conductor to form a nip between the fixing member and the pressing member through which a recording medium bearing a toner image passes, and a separator that presses the fixing member against the metal heat conductor, provided downstream from the nip in the direction of rotation of the fixing member and contacting the recording medium discharged from the nip to separate the recording medium from the fixing member and guide the recording medium out of the fixing device.
摘要:
A fixing device includes a nip forming member disposed inside a fixing member and pressed against a pressing member via the fixing member to form a nip portion between the pressing member and the fixing member through which a recording medium bearing a toner image passes. A heat generator disposed inside the fixing member heats the fixing member outside the nip portion and has variable heat distribution over a width of the fixing member. A first temperature detector disposed inside the fixing member contacts an end portion of the heat generator in the width direction of the fixing member, opposite a surface facing the fixing member, to detect a temperature of the heat generator. A second temperature detector disposed inside the fixing member contacts a center of an inner circumferential surface of the fixing member in the width direction, to detect the temperature of the fixing member.
摘要:
A fixing device includes an endless belt, a fuser pad, a pressure member, a tubular belt holder, and a reinforcing member. The endless belt is looped into a generally cylindrical configuration extending in an axial direction. The fuser pad extends in the axial direction inside the loop of endless belt. The pressure member extends in the axial direction with the belt interposed between the fuser pad and the pressure member. The pressure member is pressed against the fuser pad through the fuser belt to form a fixing nip. The belt holder extends in the axial direction inside the loop of endless belt to retain the belt in shape along an outer circumference thereof. The belt holder accommodates the fuser pad in a longitudinal side slot defined on one side thereof. The reinforcing member is disposed inside the tubular belt holder to reinforce the belt holder around the side slot.
摘要:
In a fixing device, a pressing member rotates in a predetermined direction of rotation. A flexible endless fixing member rotates in accordance with rotation of the pressing member. A nip formation member is provided inside a loop formed by the fixing member and pressed against the pressing member via the fixing member to form a nip between the fixing member and the pressing member through which a recording medium bearing a toner image passes. A first heat generator faces an inner circumferential surface of the fixing member at a position other than the nip to heat the fixing member. A second heat generator faces the inner circumferential surface of the fixing member at a position other than the nip to heat the fixing member, and is disposed adjacent to the first heat generator along the inner circumferential surface of the fixing member.
摘要:
A fixing device includes an endless, flexible fixing member, a metal member, a heater, a pressing member, a temperature detector, and a supporting member. The fixing member is rotatably provided in the fixing device to heat a toner image thereon. The metal member is fixedly mounted in the fixing device so as to be opposite an inner circumferential surface of the fixing member, to maintain the fixing member in a substantially circularly loop shape. The heater is disposed near the metal member to heat the metal member. The pressing member is rotatably pressed against an outer circumferential surface of the fixing member to form a nip portion between the pressing member and the fixing member. The temperature detector is disposed in contact with the metal member, to detect a temperature of the metal member. The supporting member is disposed between the heater and the temperature detector to support the temperature detector.
摘要:
A fixing device includes a metal thermal conductor provided inside a loop formed by a fixing rotary body to heat the fixing rotary body; a heater provided inside the metal thermal conductor to heat the metal thermal conductor; a pad support provided inside the metal thermal conductor; and a reflector provided between the heater and the pad support to reflect heat emitted by the heater thereto toward an inner circumferential surface of the metal thermal conductor. The reflector includes a center reflection portion provided at a center of the reflector in a longitudinal direction thereof and a plurality of end reflection portions provided at respective lateral ends of the reflector. A plurality of reflector moving assemblies is connected to the plurality of end reflection portions of the reflector, respectively, to tilt the plurality of end reflection portions toward the center reflection portion.
摘要:
A heat conduction unit includes a flexible endless belt, a heat conductor disposed in proximity to an inner circumferential face of the endless belt and having a cross-section substantially identical to a cross-section of the endless belt, a heat source that heats the heat conductor to heat the endless belt, a pressing roller disposed opposite the heat conductor to rotate the endless belt in accordance with rotation of the pressing roller, a nip formation member disposed opposite the pressing roller and within a loop formed by the endless belt to form a nip between the endless belt and the pressing roller, and a pushing member disposed within the loop to support the nip formation member. The heat conductor has at least two different cross-sectional shapes perpendicular to a long direction of the heat conductor at different positions in the long direction of the heat conductor.
摘要:
A fixing device includes an endless belt, a fuser pad, a pressure member, a tubular belt holder, and a reinforcing member. The endless belt is looped into a generally cylindrical configuration extending in an axial direction. The fuser pad extends in the axial direction inside the loop of endless belt. The pressure member extends in the axial direction with the belt interposed between the fuser pad and the pressure member. The pressure member is pressed against the fuser pad through the fuser belt to form a fixing nip. The belt holder extends in the axial direction inside the loop of endless belt to retain the belt in shape along an outer circumference thereof. The belt holder accommodates the fuser pad in a longitudinal side slot defined on one side thereof. The reinforcing member is disposed inside the tubular belt holder to reinforce the belt holder around the side slot.