Abstract: A microwave fuser device for heating printing matter in a reproduction apparatus with microwave energy from a suitable microwave source. The microwave fuser device supplies microwave energy through the bottom of a multi-channel resonator including a gap to enable transport of printing matter therethrough. The device includes a power splitter having plural channels for dividing microwave energy from the microwave source between the channels of the multi-channel resonator. The power splitter has a mechanism to provide variable geometry of its plural channels, whereby the effective width of microwave energy from the resonator of the microwave fuser device can be matched to the width of such printed matter having an image fused thereto substantially preventing undesirable high loss of energy and low yield.

Abstract: Provided is a printing device comprising a hot roller having an inside surface and an outside surface. A heating element is present within the hot roller. The inside surface has a first region, wherein the first region is coated with a first type of material. The inside surface has a second region, wherein the second region is coated with the first type of material, and wherein second region is of a different dimension than the first region. The inside surface has a third region, wherein the third region is coated with a second type of material.

Abstract: This invention relates to a conductive roller having high adhesion property between an elastic layer and a coating layer, and more particularly to a conductive roller 1 comprising a shaft member 2, one or more elastic layers 3 disposed on an outside of the shaft member 2 in a radial direction and one or more coating layers 4 disposed on an outside of the elastic layer 3 in a radial direction, characterized in that at least an outermost layer of the elastic layers 3 and an innermost layer of the coating layers 4 are composed of an ultraviolet-curing type resin formed by curing an ultraviolet curable raw material mixture through ultraviolet irradiation, and (1) the raw material mixture used in the innermost layer of the coating layers 4 comprises a monomer having a heterocycle, or (2) the raw material mixture used in the innermost layer of the coating layers 4 and the raw material mixture used in the outermost layer of the elastic layers 3 comprise at least one polar group-containing monomer selected from the g

Abstract: The fixing apparatus used in an image forming apparatus and fixing an image on a recording medium, the fixing apparatus is provided with: a flash lamp that emits flash light for fixing the image; and a reflection member that has a reflection surface reflecting the flash light emitted from the flash lamp to the recording medium. A shape of the reflection surface is configured so as to be deformable.

Abstract: A roll useful in fusing marking material to a print sheet includes a coating disposed on at least a portion of the inner surface thereof. A lamp disposed inside the roll supplies radiant energy to the inner surface. The coating changes its absorptivity (such as color) as desired, to obtain specific desired temperatures at different portions of the roll. The coating can be thermochromic, changing its absorptivity in response to local temperature; or electrochromic, changing its absorptivity in response to an external electrical stimulus.

Abstract: A fusing device (23) has heat reflectors (238) and (239) positioned in consideration of the fact that convective heat loss from respective outer surfaces of the heat reflectors (238) and (239) depends on orientation of the outer surfaces. More specifically, each of the heat reflectors (238) and (239) are positioned so as to have a convective heat transfer coefficient ? of up to 0.9. The convective heat transfer coefficient ? is given by the following expression: ?=(Su+0.77Sh+0.54Sd)/(Su+Sh+Sd), were Su is a projected area of an outer surface of each of the heat reflectors on an upper horizontal plane, Sh is a projected area of the same on a vertical plane, and Sd is a projected area of the same on a lower horizontal plane.

Abstract: A microwave fuser apparatus, for a reproduction apparatus, the microwave fuser apparatus having at least two microwave applicators, staggered relative to a receiver member transport path with an area of overlap, for applying microwave energy to a receiver member traveling on such transport path relative to the microwave applicators to have toner images fused thereto. The microwave fuser apparatus has at least one additional microwave applicator, located adjacent to the overlapping area between the at least two staggered microwave applicators that applies microwave energy to the receiver member. The at least one additional microwave applicator effectively maintains an elevated temperature of a receiver member.

Abstract: A microwave fuser device for heating printing matter in a reproduction apparatus with microwave energy from a suitable microwave source. The microwave fuser device supplies microwave energy through the bottom of a multi-channel resonator including a gap to enable transport of printing matter therethrough. The device includes a power splitter having plural channels for dividing microwave energy from the microwave source between the channels of the multi-channel resonator. The power splitter has a mechanism to provide variable geometry of its plural channels, whereby the effective width of microwave energy from the resonator of the microwave fuser device can be matched to the width of such printed matter having an image fused thereto substantially preventing undesirable high loss of energy and low yield.

Abstract: A fixing device 100 includes a fixing belt 102, a heat source 105, a support member 104, a pressure roller 103, and a reinforcing member 106. The fixing belt 102 has a metal sleeve. The heat source 105 is provided within the fixing belt 102. The support member 104 has a contact surface 104a that is in sliding contact with the inside surface of the fixing belt 102. The pressure roller 103 forms a nip with the bottom surface 104a between which the fixing belt 102 is sandwiched and pressed. The pressure roller 103 drives the fixing belt 102 to rotate. The reinforcing member 106 has a surface contacting the support member 104 on which a plurality of irregularities is formed. The reinforcing member 106 is positioned on a side opposite the support member to the bottom surface 104a, and receives a pressure force applied by the pressure roller 103.

Abstract: A flash fixing device is disclosed. The flash fixing device has a group of main flash lamps which emit main flash light for fixing a toner image on a recording medium; an auxiliary flash lamp provided at a position corresponding to between a pair of flash lamps of the group of main flash lamps; and a light-emission control unit controlling light-emission of the group of main flash lamps and light-emission of the auxiliary flash lamp by using a predetermined relationship. Also disclosed is an image forming device having the flash fixing device.

Abstract: A fixing device includes an excitation coil, a heat-generating layer, a magnetic shunt layer, and a degaussing member. The excitation coil generates a magnetic flux. The heat-generating layer generates heat using the magnetic flux generated by the excitation coil. The magnetic shunt layer transmits heat generated by the heat-generating layer. The degaussing member sandwiches the magnetic shunt layer together with the excitation coil, and selectively performs degaussing by generating a repelling magnetic flux for canceling the magnetic flux generated by the excitation coil so as to activate a self-temperature-control function. The degaussing member selectively refrains from degaussing so as to deactivate the self-temperature-control function.

Abstract: A color toner for electrophotography having excellent fixability and void resistance is capable of forming a high-quality image. The color toner for electrophotography comprises a binder resin and is a magenta toner, and used in combination with at least any of yellow toner and cyan toner. The storage modulus (G?100) (100° C.) of the binder resin is (1/1.1) to (1/10) times the storage modulus (G?100) (100° C.) of a binder resin contained in the yellow toner and the cyan toner. In addition, the color toner for electrophotography comprises a binder resin, C.I. pigment Violet 19, and an infrared absorbent. The color toner is a magenta toner used in combination with at least any of an yellow toner and a cyan toner. The content of the infrared absorbent in the magenta toner is higher than the content of an infrared absorbent in the yellow toner and the cyan toner.

Abstract: An electrophotographic fixing member is provided, which is excellent in toner releasability and hard to change in rubber elasticity of a silicone rubber elastic layer. The fixing member is laminated with a substrate, a cured silicone rubber layer, a cured silicone rubber adhesive layer and a fluorine resin layer, wherein when infrared light absorption strength ratios (1020 cm?1/1260 cm?1) at 1020 cm?1 and 1260 cm?1 determined by sampling the portions of 5 ?m and 20 ?m from the outer surface of the cured silicone rubber layer are taken as ?(5) and ?(20), respectively, a relationship of ?(5) and ?(20) satisfies 1.03??(5)/?(20)?1.30 and ?(20) is 0.8 or more and 1.2 or less.

Abstract: A fixing device of an image forming apparatus includes a fixing roller rotatably mounted on a moving path of a printing medium having a toner image transferred thereon to fuse the toner image on the printing medium, a heater mounted in the fixing roller to generate a magnetic field by applied voltage, thus heating the fixing roller, and at least one magnetic core disposed around the fixing roller to concentrate, onto the fixing roller, the magnetic field generated by driving the heater. Accordingly, a density difference of the magnetic field generated by the heater is minimized by disposing the at least one magnetic core around the fixing rollers, thus enabling a uniform fixing temperature.

Abstract: A fuser for a laser printer. A heating lamp is disposed in a reflective hood. A heating roller is disposed under the heating lamp and adjacent to the reflective hood. The heating roller is separated from the heating lamp by a predetermined distance. An axial axis of the heating roller is parallel to that of the heating lamp. A pressurization roller is disposed under and rotatably abuts the heating roller. An axial axis of the pressurization roller is parallel to that of the heating roller.

Abstract: A fixing apparatus according to one aspect of the present invention includes a non-contact temperature detecting element 81 allocated in non-contact with a heat roller, the sensing element detecting a temperature of the heat roller. The non-contact temperature sensing section 81 includes a thermopile P which detects a target temperature Pt of a heat roller 2, a temperature element CPU 100 which estimates an ambient temperature at the periphery of the thermopile P and computes an estimated ambient temperature SQt, and a thermister Q which detects an ambient temperature Qt at the periphery of the thermopile and outputs the ambient temperature Qt at an output voltage of a predetermined rate with respect to a total output voltage value corresponding to the estimated ambient temperature SQt.

Abstract: A device including a charging component; a developing component; a transport component; a photoconductive component; and a radiant fusing component; wherein the development component contains a toner comprising at least one crystalline polymer, optionally an amorphous polymer, and at least one colorant.

Abstract: An image fixing device for use in an image forming apparatus. The fixing device includes a fixing member which fixes a toner image on a recording medium at a nip area, a pressurizing member which pressures the recording medium toward the fixing member at the nip area, a carbon lamp which emits infrared rays, and a reflecting member which reflects the infrared rays to the nip area.

Abstract: An image forming apparatus is provided and includes: an image forming section that forms an image on a recording material with an image forming material; a first irradiating section that irradiates the recording material with a first light; and a second irradiating section that irradiates the recording material with a second light different from the first light.

Abstract: A flash fixing apparatus including a plurality of lamp groups each comprising at least one lamp, and an emission controller. The lamp groups illuminate flashes at a recording medium to fix a toner image which has been transferred to the recording medium. The emission controller causes the respective lamp groups to emit light with different emission timings, and alters the emission timings in accordance with the toner of the toner image and physical characteristics of the recording medium.

Abstract: In a method and system for modification of at least one property of toner images applied on an image carrier in the electrographic printing and copying device, a toner material is used comprising UV-curable components for a generation of the toner images. The toner images on the image carrier are subjected to an IR exposure with at least one IR component in order to generate a heat recorder for polymerization, and to a UV exposure with UV components.

Abstract: The invention relates to a method and a heating device for heating at least one printing agent on a printing material (4), which is passed along a transport path through said heating device, comprising at least one microwave applicator (2) and at least one microwave absorber element in the outer perimeter of said microwave applicator. The object of the present invention is to reduce the loss of energy due to microwave radiation exiting from the microwave applicator (5). The object of the invention is achieved in that the minimum of one microwave absorber element is an irradiation device that absorbs microwave radiation and emits electromagnetic radiation, in which case said irradiation device, in accordance with the method herein, is energized by microwave radiation, applies radiation to the printing agent and/or the printing material (4), and thus at least aids the heating process.

Abstract: A flash fixing device comprises a first and second flash lamps that emit flashes of light that fix a toner image transferred onto a recording medium and a light emission control unit that controls the light emissions of the first and second flash lamps so that the light flashes emitted from the first flash lamp and the second flash lamp are each irradiated at different timing on each portion on the recording medium.

Abstract: A fixing device that applies heat energy to a recording medium having a toner image formed thereon to fix the toner image includes a flash fixing part that includes a flash lamp disposed in non-contact with the recording medium and applies heat energy to the toner image formed on the recording medium through discharge luminescence of a gas in the flash lamp, and an air stream spraying part that is disposed in non-contact with the recording medium on a downstream side of the flash fixing part in a transporting direction of the recording medium and sprays an air stream at a prescribed temperature onto a surface of the recording medium.

Abstract: In an imaging color toner employing a photofixing system, a binder resin, which contains, as a principal component, a polyester resin obtained by mixing a first polyester resin having a softening point Tsp of not lower than 120° C. and lower than 170° C. with a second polyester resin having a softening point Tsp of not lower than 80° C. and lower than 110° C. in a weight ratio of 80:20 to 20:80, is used. The color toner is used in an electrophotographic process and other imaging processes.

Abstract: An image forming apparatus that performs fixing processing on a sheet having a transferred toner image in smaller area units than the size of the sheet includes an image forming unit that forms a toner image in each predetermined color, a transfer unit that transfers the toner image in each color over a sheet, a detecting unit that detects, for each of the areas, the maximum number of stacked toner images, a determining unit that determines the amount of heat to be applied to the area based on the maximum number of stacked toner images of the area detected by the detecting unit, and a fixing unit that, on each of the areas on the sheet after the transfer processing by the transfer unit, applies the amount of heat determined by the determining unit and fixes a transferred toner image in each color.

Abstract: An apparatus for fixing of toner onto a receiver, including: a non-contact fuser capable of fusing one or more layers of toner on a receiver such that one or more toner layers reach a fusing temperature above a glass transition temperature. The apparatus also includes one or more cooling finish rollers located downstream from the non-contact fuser to lower the toner temperature.

Abstract: An image-forming process for forming a full-color image including: forming a full-color toner image by supplying at least a cyan toner, a magenta toner, and a yellow toner onto a recording medium; and fixing the toner image on the recording medium by flash fusing, wherein each of the cyan toner, the magenta toner and the yellow toner contains an infrared absorbent, the cyan toner is supplied so that out of the cyan toner, the magenta toner and the yellow toner, the cyan toner is positioned in the uppermost layer in areas of the toner image where cyan toner is present, and the flash fusing is performed by a delayed light emission process wherein a plurality of flash lamps emit lights at a time interval.

Abstract: A toner for electrophotography fulfilling both the fixability and the void resistance at high level, and forms a high-quality image. The toner for electrophotography contains: a binder resin; and a wax component which contains: a first wax having an endothermic peak in a temperature region of 60 to 90° C., the endothermic peak occurring in the temperature-rising stage of a DSC curve determined by a differential scanning calorimeter, and having a molecular weight distribution (weight-average molecular weight (Mw)/number-average molecular weight (Mn)) of 1.5 or less, and substantially not containing a component having 500 Mw or less; and at least any of a second wax having an endothermic peak in a temperature region of 100 to 150° C. and the molecular weight distribution of 5 to 20; and a third wax having an endothermic peak in a temperature region of 150 to 170° C. and the molecular weight distribution of 1.1 or more.

Abstract: An apparatus and method for performing a second toner image fixing on a toner image on a carrier material includes a second fixing unit in the carrier material transport path. The second fixing unit is in a burn-in unit that is spaced by a cooling distance from the printer or copier and its toner fixing unit. The first fixing unit of the printer or copier fixes the toner image in a first fixing condition and the second fixing unit fixes the toner image in a second fixing condition. For printers or copiers that perform two sided printing and have front and back side fixing units, the burn-in unit also has front and back side fixing units for fixing the toner image in the second fixing condition. A controller may be provided to reduce the heat energy applied to the first fixing unit in the printer or copier to partially fix the toner image so that the second fixing unit further fixes the toner image.

Abstract: A printing apparatus may include a heating element with at least one of a contact fuser, a radiant fuser, a substrate preheater, an image bearing member heater, and a transfuser, the heating element including a lattice of filaments wherein the filaments are separated from each other by a spacing and the spacing is such that an energy input into the heating element is radiantly output in a specific frequency band. A method of using a printing apparatus may include providing a heating element that is part of the printing device and that includes a lattice of filaments wherein the filaments are separated from each other by a spacing and the spacing is such that an energy input into the lattice is radiantly output in a specific frequency band, and performing at least one printing operation.

Abstract: A microwave arrangement for affixing the toner onto a printing material by heating, wherein a resonator chamber for feeding printing material therethrough includes at least one element, which extends into the resonator chamber and is used for tuning the resonance state in the resonator chamber. The element includes at least a first portion of a material with properties that essentially do not absorb the microwave radiation and a second portion of a material with mechanically stable properties and a slightly higher absorption of the microwave radiation than the first portion.

Abstract: A distance defined by expression 2 is secured between the exciting coil and the protection cover. This not only prevents a magnetic field with a specific magnetic field intensity or higher from leaking to the outside but also reduces the effect on the circuits in the apparatus or optionally installed circuits (including a printer controller and a FAX controller).

Abstract: Handling a printing medium in a microwave fuser mechanism of a printing machine so as to prevent damages and disruptions that can occur because of the presence of condensed water. The invention is achieved by removing moisture from the microwave mechanism and by, at least, supporting conveyance of the printing medium by flowing air, and also by preventing moisture from being conveyed into other parts of the microwave mechanism.

Abstract: A digital printing or copying machine (1) is proposed for the one-sided or double-sided printing onto a substrate (5), using at least one toner. The machine (1) includes at least one fixation device (3) for fixing the toner image on the substrate (5). The fixation device (3) has at least one heating device (13) for melting the toner image, past which the substrate (5) can be taken. The machine (1) is distinguished by a guide device (17) for the free floating movement of the substrate (5) in the effective range of the heating device (13).

Abstract: In a device for fixing toner images on a recording medium in a printer or copier, fixing takes place with aid of a heat radiation source comprising ignition elements arranged in a heating module. Since the ignition elements are small, radiation areas of differing geometric extension can be created by their arrangement in the heating module.

Abstract: A method and an apparatus for preventing damage inside a printing machine caused by the radiation of microwaves emanating from microwave mechanisms. Undesired effects of the microwave radiation are automatically detected and then limited by countermeasures. Special provision is made for detecting an electrical discharge, or smoldering or burning of a printing medium inside the microwave mechanism, and then initiating suitable countermeasures.

Abstract: Heating a printing substance and/or toner, in an electrophotographic printer, with a standing microwave formed by at least one cavity resonator, with the printed matter being caused to move through the resonator gap. The power distribution of the microwave applied by the resonator is shaped and configured for specific application requirements.

Abstract: An image forming apparatus includes a plurality of image forming units for forming an image on a printing medium such as a sheet of paper. A plurality of color types of toner are arranged on a transport path of the printing medium. Toner images corresponding to the color types of toner are color-by-color transferred onto the printing medium. Light emitted from a flash lamp melts and fixes the toner images. The fixing order of the toner images corresponding to the color types of toner is decided so that the toner images are fixed in ascending order of toner's absorptivity of the light emitted from the flash lamp or in descending order of toner's reflectivity of the light.

Abstract: A digital printer or copier machine (1) is proposed for the single-sided or double-sided printing of a substrate (11), with at least one fixing device (3) for fixing toner onto the substrate (11), whereby the fixing device (3) has at least one heating device for fusing the toner. The machine has, in addition, at least one transport device (17), in order to supply the substrate (11) to the heating device, to guide it past the heating device and/or to further transport it from the heating device, whereby the transport device (17) has at least one suction belt (19) that is provided with a number of through-passage openings (21) and can be impinged with a vacuum. The machine (1) is characterized in that the suction belt (19) is constructed as a mesh.

Abstract: A fusing device complemented by a microwave application.

Abstract: A fusing and fixing unit used with an image forming apparatus including a fusing roller and an infrared heat source. The fusing roller has a main member that has hollow portions therein and is made of an opaque material and an infrared absorbent layer that is formed on the inner surface of the main member. The infrared heat source is installed inside the fusing roller and generates radiant heat having an infrared wavelength.

Abstract: A microwave device 2 is provided for fusing toner onto a print substrate in a printing machine, with a device for generating a synchronized operation to increase the absorption of the microwave irradiation by the print substrate. The microwave energy is provided by the microwave device to the print substrate in the form of pulses and the absorption of the microwave radiation by the print substrate is increased.

Abstract: An image forming device is disclosed which comprises an electrophotographic photoreceptor and a flash fixing means. The photoreceptor has a photoconductive layer formed on top of a support substrate, and the photoconductive layer contains a charge generating agent and a charge transport agent therein. The half maximum wavelength region of the charge transport agent's absorption peak is in a visual region that includes the wavelength region of the flash light when its intensity is 50% or greater of its maximum but does not include the wavelength region of the exposure light. This photoreceptor will not produce electrostatic irregularities even if light from the flash fixing means leaks thereon, and its sensitivity and its ability to be electrostatically charged will not decrease even if repeatedly used.

Abstract: Handling a printing medium in a microwave fuser mechanism of a printing machine so as to prevent damages and disruptions that can occur because of the presence of condensed water. The invention is achieved by removing moisture from the microwave mechanism and by, at least, supporting conveyance of the printing medium by flowing air, and also by preventing moisture from being conveyed into other parts of the microwave mechanism.

Abstract: A toner has a surface to which a titanium black fine particle adheres, the titanium fine particle having a property of being changed in color from black to white by flash-light.

Abstract: A new flash fixing device configured to fix a toner image by a flash light is presented. This flash fixing device includes a plurality of flash lamps arranged parallel to each other, and a reflection board including a plurality of side part reflection surfaces each facing from a side to the respective flash lamps. In a case where a surface including two central axes of the two flash lamps arranged one at each end is defined as a standard surface, an acute angle against the standard surface is set to be decreased as the side part reflection surface is positioned closer to a center of the arrangement of the plurality of the flash lamps.

Abstract: A toner for electrophotography contains at least one kind of cyclic compound selected from cyclic oligomers and cyclic polymers substantially having no terminal group, and the image forming device includes at least an electrostatic latent image carrier, an electrostatic latent image forming means for forming electrostatic latent images on the electrostatic latent image carrier, a developing means for forming visible images by developing the electrostatic latent images containing a developing agent for electrophotography, and a transfer means for transferring the visible images to a transfer material. Thus, the present invention provides a toner for electrophotography capable of providing well-balanced electrostatic property and fixing property during the image forming process in order to form images of high quality in a stable manner, and an image forming device.

Abstract: An image forming device is disclosed which comprises an electrophotographic photoreceptor and a flash fixing means. The photoreceptor has a photoconductive layer formed on top of a support substrate, and the photoconductive layer contains a charge generating agent and a charge transport agent therein. The half maximum wavelength region of the charge transport agent's absorption peak is in a visual region that includes the wavelength region of the flash light when its intensity is 50% or greater of its maximum but does not include the wavelength region of the exposure light. This photoreceptor will not produce electrostatic irregularities even if light from the flash fixing means leaks thereon, and its sensitivity and its ability to be electrostatically charged will not decrease even if repeatedly used.

Abstract: This invention provides: a color toner to be fixed on a recording medium with a flash light comprising a binder resin, an infrared ray absorbent and a coloring agent for mainly developing a yellow color, wherein the coloring agent is C.I. Pigment Yellow 180 or C.I. Pigment Yellow 185; a color toner to be fixed on a recording medium with a flash light comprising a binder resin, an infrared ray absorbent and a coloring agent for mainly developing a magenta color, wherein the coloring agent is C.I. Pigment Violet 19; and a color toner to be fixed on a recording medium with a flash light comprising a binder resin, an infrared ray absorbent and a coloring agent for mainly developing a cyan color, wherein the coloring agent is C.I. Pigment Blue 15. Also disclosed are a color toner set comprising these color toners and an image forming apparatus employing at least one of the color toners or the color toner set.