Abstract: A fixing device includes a rotatably-supported first fixing member and a second fixing member pressed against the first member. The second member includes a belt-shaped component, a support component, and a pressing component. The belt-shaped component extends in a width direction of a medium passing through a contact region between the belt-shaped component and the first member. The support component is disposed opposite the first member with the belt-shaped component interposed therebetween. The pressing component has a base end supported by the support component and a free end extending toward the contact region and presses the belt-shaped component against the first member. The pressing component has biasing portions arranged apart in the width direction and elastically deformable in correspondence with the medium thickness. The biasing portions are connected in the width direction by the free end. The free end is disposed at an upstream side in a medium transport direction.

Abstract: An image forming apparatus includes a fixing device that includes a pressing unit and a heating unit provided facing the pressing unit, an image-forming-apparatus body in which the fixing device is housed and to and from which the fixing device is attachable and detachable, a fixing-device-attachment-detachment-detecting member that detects attachment or detachment of the fixing device to or from the image-forming-apparatus body, and a controller that controls, if the fixing-device-attachment-detachment-detecting member detects the detachment of the fixing device from the image-forming-apparatus body, the image-forming-apparatus body to take a position where the pressing unit and the heating unit are to be pressed against each other.

Abstract: An image forming apparatus includes an image forming unit, a developer replenishing device, a fixing device, a press-contact adjustment mechanism, first and second driving transmission mechanisms, and a driving switching mechanism. The image forming unit forms a developer image on a recording medium. The developer replenishing device and the fixing device are detachable. The developer replenishing device replenishes a developer. The fixing device includes first and second rotation members. The second rotation member faces the first rotation member. The fixing device fixes the developer image to the recording medium. The press-contact adjustment mechanism adjusts a press-contact state between the first and second rotation members. The first driving transmission mechanism transmits a driving force to the press-contact adjustment mechanism. The second driving transmission mechanism transmits a driving force to the developer replenishing device.

Abstract: A fixing device includes a first supporting member that supports one of first and a second forming members that form a nip portion by sandwiching a recording medium, a second supporting member supporting the other of the first and second forming members, a first spring pressurizing the nip portion, a cam that rotates to relatively displace the first and second supporting members in a direction in which the nip portion is released, a rotating portion disposed at a position shifted from the cam in a rotation axis direction of the cam and rotating integrally with the cam, and a second spring exerting a force on the rotating portion in a direction opposite to a rotating direction of the cam according to the rotation of the cam when a state in which the nip portion is released transitions to a state in which the nip portion is formed.

Abstract: An image forming apparatus includes a fixing device that includes a pressing unit and a heating unit provided facing the pressing unit, an image-forming-apparatus body in which the fixing device is housed and to and from which the fixing device is attachable and detachable, a fixing-device-attachment-detachment-detecting member that detects attachment or detachment of the fixing device to or from the image-forming-apparatus body, and a controller that controls, if the fixing-device-attachment-detachment-detecting member detects the detachment of the fixing device from the image-forming-apparatus body, the image-forming-apparatus body to take a position where the pressing unit and the heating unit are to be pressed against each other.

Abstract: An image forming apparatus includes a cover that opens and closes an opening of an apparatus body, a unit removable from the apparatus body through the opening, a latch that is included in the unit and that is rotatable about a rotation fulcrum, the latch including a hook that is latched onto a latched portion of the apparatus body from downstream in a mounting direction of the unit to fix the unit onto the apparatus body and an operating portion that opposes the hook across the rotation fulcrum and that is operable through the opening, and a hindering portion that is included in the cover and that interferes, when the hook rotates in a separating direction in which the hook is separated from the latched portion in a state where the cover closes the opening, with the operating portion and hinders the hook from rotating in the separating direction.

Abstract: A fixing device includes a rotatably-supported first fixing member and a second fixing member pressed against the first member. The second member includes a belt-shaped component, a support component, and a pressing component. The belt-shaped component extends in a width direction of a medium passing through a contact region between the belt-shaped component and the first member. The support component is disposed opposite the first member with the belt-shaped component interposed therebetween. The pressing component has a base end supported by the support component and a free end extending toward the contact region and presses the belt-shaped component against the first member. The pressing component has biasing portions arranged apart in the width direction and elastically deformable in correspondence with the medium thickness. The biasing portions are connected in the width direction by the free end. The free end is disposed at an upstream side in a medium transport direction.

Abstract: A fixing device includes a first supporting member that supports one of first and a second forming members that form a nip portion by sandwiching a recording medium, a second supporting member supporting the other of the first and second forming members, a first spring pressurizing the nip portion, a cam that rotates to relatively displace the first and second supporting members in a direction in which the nip portion is released, a rotating portion disposed at a position shifted from the cam in a rotation axis direction of the cam and rotating integrally with the cam, and a second spring exerting a force on the rotating portion in a direction opposite to a rotating direction of the cam according to the rotation of the cam when a state in which the nip portion is released transitions to a state in which the nip portion is formed.

Abstract: An image forming apparatus includes a cover that opens and closes an opening of an apparatus body, a unit removable from the apparatus body through the opening, a latch that is included in the unit and that is rotatable about a rotation fulcrum, the latch including a hook that is latched onto a latched portion of the apparatus body from downstream in a mounting direction of the unit to fix the unit onto the apparatus body and an operating portion that opposes the hook across the rotation fulcrum and that is operable through the opening, and a hindering portion that is included in the cover and that interferes, when the hook rotates in a separating direction in which the hook is separated from the latched portion in a state where the cover closes the opening, with the operating portion and hinders the hook from rotating in the separating direction.

Abstract: An apparatus includes: an image forming portion that forms an image on a medium; a fixing device removably mounted to an apparatus body to fix the image to the medium, the fixing device including a first rotator that contacts the medium, a second rotator that contacts the first rotator, a movable member movable in first and second directions in which the first and second rotators are moved closer to and away from each other, respectively, an urging member, a first end of which is mounted to the movable member and which urges the movable member in the first direction, and a first support portion that supports a second end of the urging member; a cam member that moves the movable member in the second direction; a shaft member to which the cam member is mounted; and a second support portion that supports the shaft member and the first support portion.

Abstract: An image forming apparatus includes an image forming unit, a developer replenishing device, a fixing device, a press-contact adjustment mechanism, first and second driving transmission mechanisms, and a driving switching mechanism. The image forming unit forms a developer image on a recording medium. The developer replenishing device and the fixing device are detachable. The developer replenishing device replenishes a developer. The fixing device includes first and second rotation members. The second rotation member faces the first rotation member. The fixing device fixes the developer image to the recording medium. The press-contact adjustment mechanism adjusts a press-contact state between the first and second rotation members. The first driving transmission mechanism transmits a driving force to the press-contact adjustment mechanism. The second driving transmission mechanism transmits a driving force to the developer replenishing device.

Abstract: An apparatus includes: an image forming portion that forms an image on a medium; a fixing device removably mounted to an apparatus body to fix the image to the medium, the fixing device including a first rotator that contacts the medium, a second rotator that contacts the first rotator, a movable member movable in first and second directions in which the first and second rotators are moved closer to and away from each other, respectively, an urging member, a first end of which is mounted to the movable member and which urges the movable member in the first direction, and a first support portion that supports a second end of the urging member; a cam member that moves the movable member in the second direction; a shaft member to which the cam member is mounted; and a second support portion that supports the shaft member and the first support portion.

Abstract: A fixing device includes a heating unit, an endless belt body that follows rotation of the heating unit, and a pressing unit that faces the heating unit with the endless belt body interposed therebetween. The pressing unit includes a retaining body that rotatably retains the endless belt body, a pressing-area-forming portion that is a part of the retaining body, and a pressing member provided on an upstream side of the retaining body with respect to the pressing-area-forming portion in a direction of rotation of the endless belt body, the pressing member being a metal plate that is bent along a line extending in a longitudinal direction thereof. The pressing unit is movable relative to the heating unit between a position where a pressing area is formed by the pressing-area-forming portion and the pressing member and a position where the pressing area is formed by the pressing member.

Abstract: A fixing device includes a heating unit, an endless belt body that follows rotation of the heating unit, and a pressing unit that faces the heating unit with the endless belt body interposed therebetween. The pressing unit includes a retaining body that rotatably retains the endless belt body, a pressing-area-forming portion that is a part of the retaining body, and a pressing member provided on an upstream side of the retaining body with respect to the pressing-area-forming portion in a direction of rotation of the endless belt body, the pressing member being a metal plate that is bent along a line extending in a longitudinal direction thereof. The pressing unit is movable relative to the heating unit between a position where a pressing area is formed by the pressing-area-forming portion and the pressing member and a position where the pressing area is formed by the pressing member.

Abstract: An image forming apparatus includes an image forming portion and a fixing device. The image forming portion forms a developer image on a recording medium. The fixing device is removably mounted to an image forming apparatus body, and fixes the developer image formed by the image forming portion to the recording medium. The fixing device includes a first rotator, a second rotator, and a pressing mechanism. The second rotator contacts the first rotator to form an interposition region in which the recording medium is interposed between the first rotator and the second rotator. The pressing mechanism presses the first rotator and the second rotator against each other. The image forming apparatus further includes a change mechanism that changes a force with which the pressing mechanism presses the first rotator and the second rotator against each other. The change mechanism is mounted to the image forming apparatus body.

Abstract: An image forming apparatus includes an image forming portion and a fixing device. The image forming portion forms a developer image on a recording medium. The fixing device is removably mounted to an image forming apparatus body, and fixes the developer image formed by the image forming portion to the recording medium. The fixing device includes a first rotator, a second rotator, and a pressing mechanism. The second rotator contacts the first rotator to form an interposition region in which the recording medium is interposed between the first rotator and the second rotator. The pressing mechanism presses the first rotator and the second rotator against each other. The image forming apparatus further includes a change mechanism that changes a force with which the pressing mechanism presses the first rotator and the second rotator against each other. The change mechanism is mounted to the image forming apparatus body.

Abstract: A fixing device includes a first rotary member; a second rotary member that is in contact with the first rotary member and presses a recording medium passing therethrough; a heating member that heats a contact area; a first support member supporting the first rotary member from inside so as to be in contact with the second rotary member; a second support member supporting the first support member and switchable between states in which it is in contact with and separated from the first support member; a first urging-force applying member attached to the second support member and urging the second and first support members against the second rotary member; a second urging-force applying member disposed between the first and second support members; and a switching member via which the first and second support members are switched between states in which they are in contact with and separated from each other.

Abstract: A fixing device includes first and second contact bodies that apply a pressure to a recording medium to fix an unfixed image on the recording medium; a pressing member that is movable between a first position at which the pressing member is in contact with the first contact body and a second position at which the pressing member is separated from the first contact body; a first urging member that urges the pressing member to apply a force to the first contact body; a guide member that controls a direction in which the first contact body moves; a second urging member that is interposed between the pressing member and the guide member and that urges the guide member to apply a force to the first contact body; and a changer that selectively changes a position of the pressing member between the first and second positions.