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Electrophotography > Image Formation > Fixing (e.g., Fusing) > By Heat And Pressure

By Heat And Pressure

By Heat And Pressure patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

10/30/14 - 20140321892 - Wet-type image formation apparatus
A wet-type image formation apparatus includes: an intermediate transfer body that carries a toner image including toner particles, which are charged to have a first polarity, and a carrier liquid; a transferring roller that transfers a toner image onto a transfer surface of a recording medium; a charging device that...

09/04/14 - 20140248071 - Fixing device and electrophotographic image forming apparatus
Provided is a fixing device whose required heat generation amount can be obtained with a smaller amount of a microwave absorbing material, hence start-up (warm-up) time for achieving fixable temperature of the fixing device can be shortened without impairing characteristics such as flexibility, releasing property, durability. The fixing device comprises:...

08/28/14 - 20140241764 - Fixing device and image forming apparatus incorporating same
A fixing device includes a fixing member including a heat generator and an induction heater to heat the fixing member by electromagnetic induction. The induction heater includes an excitation coil, a ferromagnetic core to form a magnetic path to direct magnetic flux arising from the excitation coil to the fixing...

07/24/14 - 20140205331 - Fixing device and image forming apparatus including same
A fixing device that includes a rotary fixing member; a pressure roller configured to press against the fixing member to form a nip with the fixing member; and an induction heating unit as a heat source to heat the fixing member. The induction heating unit includes an excitation coil; a...

06/19/14 - 20140169845 - Fixing device and heater used in fixing device
A heater used for a fixing device includes a substrate, first and second conductor patterns formed at either end of the substrate in the short direction of the substrate, a third conductor pattern formed between the first and second conductor patterns and separated from the two conductor patterns, a first...

06/05/14 - 20140153979 - Fixing device provided with temperature sensor
There is provided a fixing device for thermally fixing a developing agent image to a sheet. The fixing device includes a tubular flexible member, a heater, a nip member, a reflection plate, a backup member, a stay and a temperature sensor. The flexible member has an inner peripheral surface defining...

05/01/14 - 20140119785 - Fixing device preventable unevenness of heat generation of paper passing region
A fixing device includes a heating member, a pressing member, and an induction heating unit. In this fixing device, (i) a wound width Wc of a center portion of an induction heating coil in a longitudinal direction seen from an axial direction of the heating member, (ii) a wound width...

05/01/14 - 20140119786 - Fixing device and image forming apparatus including the same
A fixing device includes an auxiliary duct. The auxiliary duct is provided between a cover member attached to a coil bobbin so as to cover a magnetic core and a coil, and a core holder provided opposing to the coil bobbin, to which the magnetic core is attached. The auxiliary...

04/03/14 - 20140093287 - Image heating apparatus
An image heating apparatus includes: a rotatable heating member; a belt unit including an endless belt and first and second supporting members; a detector; a rotating mechanism; and a displacing mechanism for permitting displacement, with rotation of the belt unit by the rotating mechanism, of the first supporting member in...

03/27/14 - 20140086647 - Image heating apparatus
An image heating apparatus comprising first and second rotatable members for heating a toner image therebetween; an endless belt for heating the first rotatable member while being rotated by the first rotatable member; first and second rollers provided inside the endless belt in this order along a rotational moving direction...

03/06/14 - 20140064802 - Rotating body support device and fixing device having rotating body support device, and image forming apparatus
A rotating body support device includes a shaft, a bearing, a mounting member, and a protruding part. The shaft serves as a rotating shaft which rotates or a fixed shaft during rotation of a rotating body. The bearing includes an inner peripheral part for supporting the shaft and an outer...

02/06/14 - 20140037346 - Suppressing toner offset in image forming apparatus with fixing unit
By connecting a first diode between a conductive heating element of a fixing roller and ground, electric charge with the same polarity as the charged polarity of toner can be held on the surface of the fixing roller. Meanwhile, by connecting a second diode between the surface of a pressing...

02/06/14 - 20140037347 - Fusing unit and image forming apparatus including the same
A fusing unit and an image forming apparatus to form an image on a recording medium including a fusing unit are provided. The image forming apparatus includes a heating member having a surface divided into a plurality of heating regions and heating the recording medium, and a pressurizing member to...

01/30/14 - 20140029992 - Image heating apparatus
An image heating apparatus includes: an exciting coil; a current applying device configured to apply a high-frequency current to the exciting coil; a rotatable heating member configured to heat a toner image on a recording material at a nip, wherein the rotatable heating member includes a first electroconductive layer for...

01/30/14 - 20140029993 - Fixing device and image forming apparatus provided with same
A fixing device includes a heat source, a fixing roller, a pressure roller, an elastic layer, a pressing portion, a restricting portion and a driving unit. The fixing roller is heated by the heat source. The pressure roller is held in contact with the fixing roller and forms a fixing...

11/14/13 - 20130302072 - System, method and device for heating
A heating head, a heating apparatus using the heating head, and a heating method are disclosed. The heating head is comprised of a strip-shaped heating resistive element configured for heating media which is used to write or erase records on a thermal rewritable media, for thermal transfer or re-transfer to...

11/14/13 - 20130302073 - Fixing device that suppresses energy loss caused by heat release to outside thereof and image forming apparatus equipped with same
A fixing device includes a fixing member, a housing, and heating-side and pressing-side heat conservation plates. The fixing member includes a heating member and a pressing member that is in pressure contact with the heating member. The housing includes the fixing member and has openings on upstream and downstream sides...

10/03/13 - 20130259544 - Fixing device and image forming apparatus
A fixing device includes a pressing member that is rotatably held and provides a pressure acting in one direction; a heating member that is rotatably held, faces the pressing member, and includes a substantially cylindrical member and a heating unit, the substantially cylindrical member receiving the pressure, the heating unit...

10/03/13 - 20130259545 - Mounting structure for bearing member, fixing device, and image forming apparatus
A mounting structure for a bearing member comprises the bearing member, bearing a rotary shaft; a frame body that includes a mounting hole; and a plurality of projections, each of the projections being formed at one of three or more positions on at least one of an outer circumferential surface...

09/26/13 - 20130251418 - Fixing device and image forming apparatus
A fixing device includes a cylindrical rotating member rotating in a circumferential direction thereof and having a slot at an end thereof and a protruding section extending along an edge of the slot at a front side in a rotational direction of the rotating member, the rotating member receiving a...

09/12/13 - 20130236221 - Fixing device and image forming apparatus
A fixing device includes a heat member that includes a heat portion and rotates in a circumferential direction; a pressure member that faces the heat member and fixes a toner image transferred on a sheet to the sheet by applying pressure when the heat member applies heat; and first and...

08/15/13 - 20130209145 - Image heating apparatus and image forming apparatus
An image heating apparatus includes a rotatable heating member configured to heat a toner image on a sheet; a belt unit including an endless belt configured to heat the rotatable heating member by contacting an outer surface of the rotatable heating member, and a supporting mechanism configured to rotatably supporting...

06/06/13 - 20130142551 - Fixing device and image forming apparatus
A fixing device fixes a toner image on a recording medium by heating the recording medium, with a heating area and a non-heating area selected in accordance with a magnetic flux and a repulsive magnetic flux. The fixing device includes a heat generating layer, an exciting coil, and a demagnetizing...

05/02/13 - 20130108337 - Image heating device
In an image heating device (F) employing an induction heating system, which includes a heating rotary member (15, 15A) and a magnetic flux generating unit including a coil and a magnetic core (12), when an area of a surface of a leading end portion of the core (12) on a...

04/25/13 - 20130101325 - Fixing apparatus for a sheet-fed electrophotographic printer
A fixing apparatus includes a fixing drum having a heating heater internally equipped therein, the fixing drum positioned spaced part and downstream from a sheet delivery site at a downstream-most side of printing units and is adapted to rotate at a peripheral speed identical to a speed of travel of...

03/28/13 - 20130078016 - Image forming apparatus
An image forming apparatus includes; an image forming station for forming a toner image on a sheet; a fixing device including a fixing member and a pressing member; an air feeding member for air feeding cooling air toward the pressing member; and a shutter, provided between the air feeding member...

03/14/13 - 20130064584 - Fuser device and image forming apparatus provided with same
A fuser device includes a first motor for rotatably driving one of a heating member and a pressure-applying member, a second motor rotating either in a forward direction or a reverse direction in order to switch a pressure-application-switching mechanism between an applied-pressure state and a released-pressure state, a first detector...

01/24/13 - 20130022381 - Fuser and image-forming apparatus
A fuser includes a cylindrical heating rotating body including a heat generator and a pressure rotating body including a circumferential face which has contact with the heating rotating body to form a nip portion for fusing, wherein a disk-like outside plate, which is exposed outside, is provided in one end...

01/03/13 - 20130004217 - Lever switcher with mechanism for minimizing mechanical shock and sound and fixing device and image forming apparatus incorporating lever switcher
A fixing device includes a first opposed body and a second opposed body pressed against the first opposed body. A resilient member exerts a resilient bias to the second opposed body that presses the second opposed body against the first opposed body. A lever assembly is swingable to move the...

12/27/12 - 20120328338 - Image heating apparatus, bearing mounting structure and retaining ring
An image heating apparatus includes a roller, a heating portion disposed within the roller, a bearing portion fitted around an end portion of the roller to rotably support the roller, and a retaining ring attached at an axially predetermined position of the roller to restrict the roller from moving in...

12/27/12 - 20120328339 - Fixing unit and image forming apparatus
A fixing unit includes a heating rotor, a pressure rotor, an induction coil, and a magnetic core portion having a bypass core portion and a magnetic flux shielding member. The induction coil generates a magnetic flux to heat the heating rotor. A Curie point of the bypass core portion is...

10/25/12 - 20120269559 - Processing apparatus and image forming system
The processing apparatus includes a first storage device that stores correction image information defining a correction image Ap formed on the surface of a to-be-processed medium S, in which the positional relationship relative to an output image formed on the surface of the to-be-processed medium S is known; a second...

09/20/12 - 20120237273 - Fixing device with resistance heating element capable of accurately generating heat and image forming apparatus with fixing device
In a fixing device, a heating element is extended along a fixing member at a location other than a nip on an inner circumferential surface side of the fixing member to generate heat. The fixing member contacts the heating element either indirectly via a gap of a prescribed size or...

09/20/12 - 20120237274 - Fixing unit and image forming apparatus
A fixing unit includes a fixing rotatable body that is located at a side of a recording medium, the side carrying a not-fixed image, a pressing rotatable body that is located at another side of the recording medium and that is disposed so as to abut on the fixing rotatable...

08/09/12 - 20120201579 - Fixing device and image forming apparatus incorporating same
A fixing device includes a first roller, a second roller, an endless belt, a third roller, a heater, a cooler, and a belt tensioner. The second roller is parallel to the first roller. The endless belt is looped for rotation around the first and second rollers. The third roller is...

08/02/12 - 20120195654 - Fixing rotating member and fixing device equipped with the same
A fixing rotating member configured to, together with a pressure member, pinch and transport a recording material carrying an image includes a base material and a releasing layer, wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and...

07/26/12 - 20120189361 - Fixing device and image formation apparatus
Disclosed is a fixing device that easily suppresses an excessive temperature increase in a guide plate without extending a warm-up period, the device comprising: guide plate 156 that includes a low-resistance, electrically conductive layer, and guides fixing belt 155 in its rotation direction by contacting its inner surface inside its...

07/19/12 - 20120183336 - Image heating apparatus
The present invention relates to an image heating apparatus in which a nip portion is formed by a heating unit, which includes a flexible sleeve and a heater, and a pressure roller. The position of the heating unit is appropriately maintained by pressing the heating unit against the pressure roller...

07/12/12 - 20120177418 - Fixing device and image forming apparatus including same
An induction heating-type fixing device includes a fixing member, an excitation coil, a magnetic core, a holder, and a pressing member. The fixing member includes a heat generating layer to heat and fuse a toner image on a recording medium. The excitation coil wound a predetermined number of times is...

06/28/12 - 20120163882 - Fusing device and image forming apparatus having the same
A fusing device to reduce lubricant leakage, includes a fusing belt having a heat source placed therein, a pressure roller placed to apply pressure to an outer surface of the fusing belt, and a nip plate to support an inner surface of the fusing belt so as to define a...

06/21/12 - 20120155930 - Fixing unit and image forming apparatus including the fixing unit
A fixing unit and an image forming apparatus including the fixing unit. The fixing unit includes a heating roller having an internal space in which a heating source is disposed and a pressurizing roller facing the heating roller. The heating roller has a circular hollow pipe shape and includes a...

06/21/12 - 20120155931 - Fusing device and image forming apparatus using the same
A fusing device includes a fusing roller, a compression roller, and a cam; a first link having an end as a rotation support point, another end with a contact point with the cam, and an intermediate point between the end and another end thereof; a second link having a first...

06/14/12 - 20120148317 - Fixing device and image forming apparatus incorporating same
A fixing device includes a switch circuit that selectively connects an alternating electric current power supply to a first exciting coil and a second exciting coil. When the switch circuit connects the alternating electric current power supply to both the first exciting coil and the second exciting coil, the first...

05/17/12 - 20120121301 - Fixing device and image forming apparatus
Provided is a fixing device successively pressurizing and heating a toner image on a recording member being conveyed to fix the toner image onto the recording member, including a pressure roller, a heating roller arranged opposite to the pressure roller and sandwiching, with the pressure roller, the recording member with...

05/03/12 - 20120107028 - Induction heating unit, fixing apparatus, and image forming apparatus
A magnetizing coil and a demagnetizing coil are disposed in a fixing apparatus that uses electromagnetic induction to heat a conductive heat-producing rotating body and thermally fixes a toner image onto a recording sheet in one of a plurality of sizes. The magnetizing coil is arranged along the outer surface...

03/29/12 - 20120076555 - Image forming apparatus
An image heating apparatus includes a heating rotatable member; a pad-like pressing member contacted to the heating rotatable member and cooperating with the heating rotatable member to provide a nip for nipping and feeding a recording material, wherein the pressing member includes a base material having a roughened surface and...

03/22/12 - 20120070205 - Fixing unit and image forming apparatus
A fixing unit includes: a fixing member; a pressure member that rotates while being pressed onto the fixing member; a fixing portion that is a contact portion between the fixing member and the pressure member and performs fixation on a recording medium; and a temperature uniformizing member that abuts against...

03/22/12 - 20120070206 - Driving apparatus, fixing apparatus, and image forming apparatus
A driving apparatus is disclosed. The driving apparatus includes a driving mechanism which includes a moving drive gear, the moving drive gear being a drive gear which is mounted on an axis-moving rotor, the axis-moving rotor being a rotor, the center of which rotor is able to move. The axis-moving...

03/15/12 - 20120063823 - Image heating device
An image heating device includes a heating rotatable member; and a pressing pad contacted to said heating rotatable member and forming a nip with said heating rotatable member to nip and feed a recording material, said pressing member being provided with an electroconductive material dispersed resin material layer contacting said...

03/01/12 - 20120051807 - Printer heating element
An improved fuser includes a heater which provides uniformity at the surface of a fuser roll that contacts an imaged sheet. The heater is configured to include a single resistive element shaped to heat multiple sheet sizes with independently controllable conductive traces connected to outer segments of the resistive element...

02/16/12 - 20120039646 - Fixing devices for fixing marking material to a web with contact pre-heating of web and marking material and methods of fixing marking material to a web
Fixing devices for fixing marking material to a web, printing apparatuses and methods of fixing marking material to a web are provided. An exemplary embodiment of the fixing devices includes a first roll including a heated outer surface; a second roll forming a fixing nip with the outer surface of...

02/16/12 - 20120039647 - Fixing devices including extended-life components and methods of fixing marking material to substrates
Fixing devices including extended-life components and methods of fixing marking material to a substrate are provided. An exemplary embodiment of the fixing devices for fixing toner to a substrate in printing includes a first fixing member including a first surface; a thermal energy source for heating the first surface of...