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6671489 Thermal fixing apparatus  
In a heating-type toner-fixing unit using a ceramic heater and a cylindrical fixing film, the shape of the fixing face-side surface of a ceramic heater 10 which comes into contact with a fixing...
6650863 Fixing unit and image forming apparatus  
The invention concerns the image forming apparatus incorporating a fixing unit, which is includes either a fixing belt or a fixing roller, and effectively used in a copier or a printer. The fixing...
6636709 Fixing device having temperature detecting member and image forming apparatus using said fixing device  
A fixing device for fixing a toner image on a recording medium includes a heating roller, a fixing roller, an endless fixing belt extended around at least the heating roller and the fixing roller...
6631253 Fixing device and image forming apparatus using the same  
A fixing device for fixing a toner image formed on a recording medium conveyed to a nip for fixation of the present invention includes a rotary body, a stationary heating member not forming the...
6618574 Thin film type image heating apparatus with pressurizing force transmitting member for regulating movement of film  
The image heating apparatus has a heater, a film sliding against the heater, a roller forming a nip together with the heater via the film, a holding member for holding the heater, and a supporting...
6614004 Heater including heat dissipation resistor on substrate and image heating apparatus equipped with the heater  
In a film heating system, since a heating body is in contact with the conductive ring at an end portion of the heating body, heat body through the conductive ring, with the result that the quantity...
6597888 Image heating apparatus with holding a driving members for belt outside nip portion  
The present invention provides an image heating apparatus, which has a movable endless belt, a support member for supporting the belt at an inside of the belt, wherein the belt slides relative to...
6594464 Image forming apparatus including endless belt with reduced heat loss  
A fixing device for an image forming apparatus includes a heat roller, a fixing roller, an endless belt passed over the heat roller and fixing roller and driven to turn, a press roller pressed...
6583389 Image heating apparatus, heater for heating image and manufacturing method thereof  
An image heating apparatus that has an elongated heater, a film having a surface which moves while in contact with a recording material bearing an image, wherein the image on the recording material...
6584297 Image fixing device and image forming apparatus equipped therewith  
An image fixing apparatus in which a fixing belt is trained about a plurality of support rollers including therein one support roller housing a heat applying source, and a relative position of a...
6580894 Fixing apparatus  
A fixing apparatus according to the present invention includes a heating member, a belt support member, a heating belt, a press member, a first control section, and a second control section. The...
6577837 Image forming method and image forming apparatus  
An image forming method has steps of transferring a toner image formed on an image bearing member onto an intermediate transfer member and simultaneously transferring and fixing the toner image on...
6574449 Image forming apparatus, and fixing device for use with the same  
A fixing device includes a pressure application roller 120 pressed against a fixing belt 110 (or fixing roller) to be heated. One of the them is driven while the other follows the one in...
6567639 Fixing device for heat pressure fixing a record medium and method thereof  
A fixing device according to the present invention includes a fixing belt and heats up a record medium having a developed image, a pressure roller pinches and conveys the record medium together...
6564026 Image forming apparatus having a removable roller unit  
An image forming apparatus includes an apparatus body, a heat roller, a fixing roller, a press roller pressed against the fixing roller, and endless belt passed over the heat roller and fixing...
6564033 Fixing belt and image heating and fixing apparatus  
To provide a high-durable fixing belt and an image fixing apparatus with high durability and high reliability for using a heating body needing a small amount of thermal capacity to enable heating...
6556798 Method and apparatus for using a conformable member in a frictional drive  
A method and apparatus for controlling image defects associated with overdrive or underdrive, and variations thereof, in an electrostatographic machine. A speed modifying force is transmitted to a...
6553204 Fixing device for fixing a toner image in an image forming apparatus  
An image forming apparatus and a fixing device for fixing a toner image on a transfer member include a fixing roller and a backup roller configured to press the image transfer member against the...
6537741 Fusing belt for applying a protective overcoat to a photographic element  
A fusing belt comprising a substrate and a coating on the substrate wherein the coating comprises a resin containing a cured silsesquioxane polymer and wherein the belt is used in combination with...
6519439 Toner image fixing method and apparatus  
A method of fixing a toner image on a support, which includes the steps of heating a toner image formed on a support by use of a toner to the softening point or melting point of the toner or above,...
6518546 Heater having electronically conductive board and image heating apparatus using heater  
This specification discloses a heater comprising an electrically conductive substrate, a first electrically insulating layer formed on the electrically conductive substrate, a heat generating...
6505018 Fixing apparatus with improved heating efficiency  
A fixing apparatus of the present invention includes a fixing roller arranged opposite to a heating roller in a spaced-apart relation, a fixing belt spanned between the fixing roller and the...
6501935 Belt-type fixing apparatus having a fixing roller provided with a soft foam layer  
A fixing apparatus which prevents a generation of wrinkles in a print paper and rapidly recovers a temperature of a fixing belt. The fixing belt is engaged with a fixing roller and a heat roller...
6501936 Heating mechanism for use in image forming apparatus  
A heating mechanism includes a paper transmitting path for carrying a paper, a fixing roller provided on this paper transmitting path, a pressurizing roller disposed so as to oppose the fixing...
6498919 High fatigue resistant metal sheet and fixing belt and fixing apparatus using the same and evaluation apparatus of metal material fatigue resistance and method thereof  
A metal sheet showing either voltage characteristics, impedance or calorific characteristics close to the case where low frequency is applied even when a high frequency alternating current voltage...
6498911 Fixing device with reduced power consumption and shortened warm-up time  
A fixing device is provided in the middle of a conveyance path for conveyance of a sheet on which a toner image is transferred. A fixing roller round which an endless fixing belt is put is provided...
6496680 Image fixing device and method using ultrasonic vibration  
Device and method for fixing an image in which a vibrator, which generates ultrasonic waves by applying a voltage, and a horn connected thereto are arranged opposite a pressure roller with an...
6496666 Image forming apparatus and method having an improved heating mechanism in fixing device  
A fixing device having an endless fixing belt configured to convey a sheet-like medium on which a toner image is to be fixed, heating and fixing rollers having the fixing belt wound thereon, and a...
6476357 Fixing device provided with a fixing belt  
The fixing device of the present invention comprises a heating roller having an internal heating device; a flexible fixing belt wrapped around the exterior side of the heating roller and having a...
6462317 Heater bar utilizing a positive temperature coefficient heating element  
This invention relates to an improved heater bar that can be used for either a heater in a laser printer fuser or a heater in a thermal overcoat or laminating mechanism. The improved heater bar...
6459877 Fixing device which prevents damage to a fixing belt  
A recording medium having a toner image formed thereon is moved to pass through a press contact portion between an endless belt being heated and an pressure roller pressed against the endless belt....
6456819 Image heating apparatus  
The present invention provides an image heating apparatus which has a supporting member, a moving member slidable with the supporting member, and a backup member forming a nip with the supporting...
6449457 Toner image forming device with belt heated by electromagnetic induction heating  
The fixing device includes a heating roller made of magnetic metal and heated by electromagnetic induction; a fixing roller disposed parallel to the heating roller; an endless toner heating medium...
6377777 Fluorine-containing resin-coated pressure roller and heat-fixing device  
A fluorine-containing resin-coated pressure roller exhibiting excellent anti-toner soiling characteristic even at low roller temperatures is provided. The pressure roller includes a cylindrical...
6365279 Fusing member for hot pressure fixing of toner particles and for transfusing toner particles  
A fusing member comprising a support, and on the support, an outermost layer containing a silicone elastomer, having at most 5% by weight of filler particles, the elastomer layer containing...
6366757 Induction heating fixing device  
An induction heating fixing device transports a sheet sandwiched between a fixing belt and a pressing roller pressed thereagainst, heats the sheet, and thereby fixes a toner image onto the sheet....
6363229 Full-color toner image fixing method and apparatus  
A method for fixing full-color toner images on an image receiving member so that the fixed toner images selectively exhibit different glossinesses includes the step of bringing the transferred...
6352807 Image forming method and apparatus having a photoreceptor web  
A photoreceptor web for an image forming apparatus includes a base layer, a conductive ground layer formed on the base layer, and a photosensitive layer formed on the ground layer, where an...
6351619 Image forming apparatus, belt type fixing device and heating control  
A belt type fixing device of the present invention includes an endless belt, a conveyor roller supporting the belt such that the belt is rotatable, a first heat source for heating the belt, a first...
6332067 Passive management of transfuse belt temperature distribution  
A printing apparatus includes a toner image producing station for forming a toner image. The apparatus includes an image bearing member for supporting the toner image; and a transfuse station for...
6327444 Fixing device and heating volume regulating method for an image forming apparatus  
The fixing device of the present invention is provided in the conveying path to lead an image receiving medium having a developer image in the exit direction and includes a pressurizing/fixing...
6327456 Induction heating fixing device and image forming apparatus  
The present invention provides a fixing device that excels in thermal conversion efficiency, compared with an induction-type fixing device. In this fixing device, a peripheral surface of a roller...
6324366 Sleeve rotation-feed apparatus, developing apparatus, image formation apparatus, and fixation apparatus  
A drive roller is rotated and a high voltage periodically alternating between plus and minus based on the potential of a conductive portion of the drive roller 2 is applied by a high voltage power...
6321061 Belt nip-type toner fixing apparatus using elastic endless belt  
Disclosed is a belt type fixing apparatus for thermally fixing an unfixed toner layer on a paper sheet. The fixing apparatus has a heating roll and a resilient endless belt stretched by a plurality...
6298215 Image heating apparatus  
The present invention provides an image heating apparatus which has a rotary member, magnetic flux generating device for generating a magnetic flux, and wherein an eddy current is generated in the...
6282398 Fixing apparatus  
The fixing apparatus is capable of ensure the freedom of the design for a driving mechanism which is provided for endlessly traveling the fixing belt. In order to accomplish the object, the fixing...
6272309 Fixing apparatus  
The present invention provides a fixing apparatus which can secure a sufficient fixing performance even if a nip pressure is arranged in relatively low value. A fixing apparatus comprises a fixing...
6266510 Control of wrinkling in belt fuser by nip configuration  
An electrophotographic printing apparatus utilizing a belt fuser mechanism which minimizes or eliminates the wrinkling or "treeing" of printed pages through the fuser is disclosed. In this device,...
6263181 Electrostatographic reproduction machine including a dual function fusing belt deskewing and oiling assembly  
An electrostatographic reproduction machine including a contact belt fusing apparatus for fusing copy sheets without belt skew defects. The fusing apparatus includes an endless fusing belt having...
6263183 Woven belts for business machines  
Multiple layer fuser belts having a woven fabric layer and a high conformability, low surface energy elastic layer. The fabric layer is formed from high modulus, high temperature fibers that are...