摘要:
In a fixing device, a stationary member is provided inside a belt member and pressed against a rotary pressing member via the belt member to form a nip between the rotary pressing member and the belt member through which a recording medium bearing a toner image passes. An expandable heating member is provided inside the belt member to face an inner circumferential surface of the belt member to heat the belt member. A regulator contacts a downstream portion of the heating member provided downstream from a center of the nip in a direction of rotation of the belt member to expand the downstream portion of the heating member.
摘要:
A fixing device includes a hollow, stationary metal roller, a flexible fuser belt, a rotatable pressure member, a fuser pad, a reinforcing member, and a heating assembly. The metal roller has an outer circumference thereof subjected to heating. The flexible fuser belt is looped for rotation around the metal roller to transfer heat radially outward from the heated metal roller. The fuser pad is held stationary inside the loop of the fuser belt to press against the pressure member through the fuser belt to form a fixing nip. The reinforcing member is disposed stationary within the roller interior. The heating assembly is disposed stationary within the roller interior to heat the metal roller from inside, and includes a first heater and a second heater. The first and second heaters are arranged in juxtaposition with each other along the inner circumference of the metal roller.
摘要:
In a fixing device, a stationary member is provided inside a belt member and pressed against a rotary pressing member via the belt member to form a nip between the rotary pressing member and the belt member through which a recording medium bearing a toner image passes. An expandable heating member is provided inside the belt member to face an inner circumferential surface of the belt member to heat the belt member. A regulator contacts a downstream portion of the heating member provided downstream from a center of the nip in a direction of rotation of the belt member to expand the downstream portion of the heating member.
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:
In a fixing device, a pressing member rotates in a predetermined direction of rotation. A flexible fixing member is disposed opposite the pressing member to rotate 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 contact member pressingly contacts an outer circumferential surface of the rotating fixing member at both ends of the fixing member in an axial direction thereof.
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 an endless, flexible fixing member, a heat conductive member, a heater, a pressing member, a nip formation member, and a radiation member. The endless, flexible fixing member is formed into a loop. The heat conductive member is disposed within the loop formed by the fixing member to conduct heat to the fixing member. The heater is disposed near the heat conductive member to heat the heat conductive member. The pressing member is rotatably pressed against the fixing member to form a fixing nip between the fixing member and the pressing member. A recording medium is conveyed through the fixing nip. The radiation member is detachably pressable against an outer circumference of the fixing member to contact the fixing member with the heat conductive member to cool the fixing member and the heat conductive member.
摘要:
A fixing device includes an endless, flexible fixing member, a heat conductive member, a heater, a pressing member, a nip formation member, and a radiation member. The endless, flexible fixing member is formed into a loop. The heat conductive member is disposed within the loop formed by the fixing member to conduct heat to the fixing member. The heater is disposed near the heat conductive member to heat the heat conductive member. The pressing member is rotatably pressed against the fixing member to form a fixing nip between the fixing member and the pressing member. The recording medium is conveyed through the fixing nip. The radiation member is detachably pressable against an outer circumference of the fixing member to contact the fixing member with the heat conductive member to cool the fixing member and the heat conductive 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 unit removably installable in an image forming apparatus includes an endless fixing member; a metal member disposed in proximity to an inner surface of the fixing member; a nip formation member supported by the metal member to slidably contact the fixing member or oppose the fixing member via a slide sheet; a heater to heat the metal member to heat the fixing member; a rotary pressing member to rotate the fixing member, disposed opposite the nip formation member via the fixing member to form a nip between the rotary pressing member and the fixing member; a rotation detector to detect a rotational state of the fixing member. Heating rotation of the fixing member is continuously performed until a predetermined rotational state of the fixing member is obtained, to spread lubricant substantially uniformly at least between the fixing member and the metal member.