Fuji Xerox Co., Ltd.

Mikio Saiki

Yasuhiro Uehara

Mitsuhiro Matsumoto

Kazuyoshi Ito

Hideaki Ohara

Hiroki Murakami

Junji Okada

Nobuyoshi Komatsu

Tadashi Suto

Hiromi Nagai

Kimiyuki Kawakami

Hiroko Furukata

Atsumi Kurita

Yasuhide Saito

Masahiro Ishino

Toru Isosu

Masami Ishida

Shinichi Sakai

Yoshiyasu Tanioka

Hiroshi Daigo

Takeshi Nakaoka

Masami Sakuma

A heat sensing device includes a heat sensing element that contacts an inner surface of a surface heater extending in an arc shape, the inner surface having the arc shape, and that senses that a temperature of the surface heater exceeds a predetermined temperature; a spring member one end of which is fixed to the heat sensing element and that presses the heat sensing element against the inner surface of the surface heater; and a supporting body that supports the other end of the spring member, the other end being away from the heat sensing element, in such a way that the other end is movable in a direction in which the surface heater extends in the arc shape.

Heat sensing device, fixing device, and image forming apparatus

A fixing device includes a fixing member that fixes a toner image to a recording medium, a pressure member that forms, together with the fixing member, a pressure portion through which the recording medium carrying the toner image yet to be fixed passes, and a heating member including a heating layer that generates heat when energized and an insulating layer that encloses the heating layer so as to electrically insulate the heating layer. The heating member has a curved shape along an inner peripheral surface of the fixing member, in a state in which no external force is applied, and is in contact with the inner peripheral surface of the fixing member.

Fixing device, heating device, image forming apparatus, and method of manufacturing heating device

A surface heater includes a heating body, insulation layers, and a first support layer and a second support layer. The heating body is interposed between the insulation layers. The heating body and the insulation layers are interposed between the first support layer and the second support layer. The first support layer has a first region superposed on the heating body and a second region not superposed on the heating body. The first support layer has at least one slit which is located at a side of an inner circumferential surface of the surface heater bent into an arc shape. The second region has the at least one slit and the first region has no slit, or the at least one slit includes a plurality of slits and the second region has a greater number of slits out of the plurality of slits than the first region has.

Surface heater, fixing device, and image forming apparatus

Provided is a fixing device including a heating unit that includes a circularly moving heating belt, and a pressurizing roller that presses an external face of the heating belt, the fixing device fixing a toner image on a sheet onto the sheet by nipping the sheet between the heating belt and the pressurizing roller and by heating and pressurizing the sheet transported with the toner image being held.

Fixing device having heating portion with rigidity adjusting portions and image forming apparatus

A fixing device includes a rotatable endless fixing member that fixes a toner image onto a recording medium, and a heating member. The heating member includes a heat-generating layer that generates heat when supplied with electricity; an insulation layer that encloses the heat-generating layer therein to electrically insulate the heat-generating layer; a metallic layer that is laminated on a first surface of the insulation layer, has higher rigidity than the insulation layer, and generates an elastic restoring force; and a thermally conductive layer that is laminated on a second surface of the insulation layer, has lower rigidity than the metallic layer, and has higher thermal conductivity than the insulation layer and the metallic layer. The heating member is supported by one edge of the fixing member in a circumferential direction thereof, elastically deforms by being pressed against an inner peripheral surface of the fixing member, and heats the fixing member.

Fixing device, heating member, and image forming apparatus

A belt driving device includes an endless belt; support members that extend in a width direction of the endless belt and support the endless belt, the support members including a control member that controls the widthwise position of the endless belt; a support body that supports the support members; and a driving mechanism that drives one end of the control member to cause the control member to pivot about a pivot axis in a direction in which stretching of the endless belt is prevented. A portion of the control member shifted from the midpoint toward an edge of the endless belt is pivotably supported by the support member to serve as the pivot axis, so that the moving distances of two points on the control member aligned with the edges of the endless belt when the control member is driven by the driving mechanism are close to each other.

Belt driving device, fixing device, and image forming apparatus

Provided is a heating device that heats a belt which transports a medium on which a non-fixed image to be fixed onto the medium through heating is formed, the heating device including a heating element, a first insulating layer and a second insulating layer that are arranged to nip the heating element, a first supporting layer that comes into contact with the first insulating layer and a second supporting layer that comes into contact with the second insulating layer, both of which are arranged to nip the first insulating layer, the heating element, and the second insulating layer, and a connection member that connects the first supporting layer and the second supporting layer in a normal direction of the first supporting layer and the second supporting layer.

Heating device, fixing device, and image forming apparatus

A transport device includes a belt-shaped member that is rotated so as to transport an object, a first support member that supports the belt-shaped member, an urging member extending in an axial direction of the first support member, and a conversion unit that converts a direction of an urging force of the urging member to a direction toward the belt-shaped member.

Transport device, fixing device, and image forming apparatus

Provided is a fixing device including a fixing member that fixes a toner image onto a recording material, a pressurizing member that forms a pressurizing portion, in cooperation with the fixing member, through which the recording material holding a non-fixed toner image passes, a heating member that includes a heat generating portion having a predetermined pattern shape and being energized to generate heat, and heats the fixing member, a supporting member that supports the heating member along an inner circumferential surface of the fixing member, and a thermal diffusion member that faces the supporting member with interposing the heating member, and diffuses heat from the heating member and conducts the heat to the fixing member.

Fixing device and image forming apparatus

A roller-shaped rotator includes an endless belt and a roller-shaped base member. The roller-shaped base member is formed by winding a thin plate material plural times through elastic deformation into a roller shape. The roller-shaped base member is inserted into the endless belt, and brought into press contact with an inner peripheral surface of the belt by an elastic repulsive force due to the deformation. The roller-shaped base member is supported at both end portions in an axial direction so as to be rotatable about an axis of the roller-shaped base member.

Roller-shaped rotator, fixing device, and image forming apparatus

A fixing device includes a plurality of belt support members including a first roller, an endless belt, a heating structure, a first support that has two bearings and an urging part and supports the first roller via the urging part and the two bearings, a second support that supports at least one another belt support member excluding the first roller, the second support rotatably supporting the first roller, an angle changing mechanism that changes an angle of the first support with respect to the second support to correct eccentricity in a width direction of the endless belt, and a second roller that rotates while being pressed against an outer surface of the endless belt, the second roller sandwiching a medium carrying an unfixed toner image between the second roller and the endless belt, the second roller fixing the toner image to the medium in cooperation with the endless belt.

A releasing device includes: a releasing unit that is made of a resin and disposed on a downstream side in a conveying direction of a recording medium from a fixing portion of a fixing unit which fixes a toner image on the recording medium, the releasing unit releasing the recording medium from the fixing unit; a supporting unit that supports the releasing unit on a supporting face and maintains the releasing unit and the fixing unit in a non-contact state; a screw that is advanced in a direction along the supporting face to secure the releasing unit; and a protruding portion provided between the releasing unit and the supporting unit and disposed at a position in a range extending from a first region between the screw and the supporting face to a second region shifted from the first region in a tightening direction side of the screw.

Releasing device, fixing device and image forming apparatus

A unit, which is configured to be attachable to and detachable from a body of an apparatus, includes: a holding portion for holding the unit to attach and detach the unit to and from the apparatus body, the holding portion being projected from a housing of the unit; and a lock mechanism for fixing the unit to the apparatus body, wherein an operating portion of the lock mechanism is operated to retract inside a projection end portion of the holding portion, by an operation of moving the lock mechanism to a lock cancel position.

Unit and image forming apparatus including the same

A fixing device, includes: a heating member that rotates in a state heated by a heating unit; a driven member that is rotated by the heating member, and that conveys a sheet in cooperation with the heating member; a biasing unit that biases the heating member and the driven member in a contacting direction; a contact area forming member that forms a contact area of the heating member and the driven member by making the heating member and the driven member come in contact with each other; a support member that supports at least one of the heating member and the driven member so as to be freely moved in a direction approaching and separated with respect to the other member; and a fulcrum that is arranged in a downstream side of the contact area in a sheet conveying direction, and that movably supports the support member.

Growing community of inventors

Kanagawa, Japan

Mikio Saiki