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5715507 |
Color image forming process with control gloss
An image forming process is disclosed, comprising the steps of passing an image recording material comprising a support having thereon an image formed of a toner containing a resin and a colorant,...
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5715508 |
Apparatus for printing recording media or supports in the form of discs
An apparatus for printing recording media or supports in the form of discs, wherein a fusible powder is applied image-wise to an image-forming medium and then transferred to an intermediate medium,...
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5708926 |
Image heating apparatus with first and second elastic members
An image heating apparatus includes a first member; a second member for forming a nip in cooperation with the first member; a first frame for supporting the first frame a second frame connected to...
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5700994 |
Apparatus and fuser control method for reducing power star fuser recovery time
A method and a fusing apparatus for producing a reduced recovery time period from a low energy-saver mode temperature back up to a high fusing temperature. The fusing apparatus includes a heating...
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5697036 |
Single roll RAM system
A self-stripping heat and pressure fuser and Release Agent Management (RAM) system therefor. A fusing belt entrained about a heated fuser roll and a support roller is move at a first predetermined...
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5689788 |
Heat and pressure roll fuser with substantially uniform velocity
A heat and pressure roll fuser is disclosed for fixing powder images to various substrates. Each of the rolls has a deformable outer layer. One of the rollers is crowned such that its center has a...
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5671474 |
Press roller supported at opposite ends and at an interior portion
A structure for supporting a press roller of a fixing unit is provided. The fixing unit has the press roller and a heat roller, between which a sheet is passed. The sheet is pressed against the...
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5659844 |
Fixing device for thermally fixing toner onto a paper sheet and having a controller for controlling the amount of heat received by the paper sheet
A fixing device which changes the amount of heat received by a recording paper in accordance with a portion of the recording paper with respect to a paper transporting direction. The fixing device...
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5659864 |
Dual image forming apparatus and method of using same
An image forming apparatus includes a first printing unit which forms a first image on a sheet with a first printing material and fixes the first image thereon by heat application; and a second...
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5623331 |
High-speed electrophotographic fixing unit
A fixing unit includes a fixing roller, a pressure roller forming a nipper in cooperation with said fixing roller, the nipper conveying a recording material on which an unfixed image is formed...
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5621512 |
Image fixing device having an endless belt and non-rotating pressure-applying member
The present invention provides an image fixing device including a heat fusing roller with heating means inside and an elastic material layer on a peripheral surface of the heat fusing roller, the...
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5602635 |
Rapid wake up fuser
An apparatus for fusing images to a sheet. A fuser device is provided using a transparent fusing roll having an internal heating device which focuses the energy to a narrow area of the roll...
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5600406 |
Fixing temperature control device
A fixing temperature control device according to the present invention is applied to a copying machine. A control section has a warm-up control mode and a normal control mode. In the warm-up...
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5592277 |
Image fixing apparatus and image forming apparatus
An image forming apparatus includes an image forming device for forming an unfixed image on a recording material; a heater; and a film movable with the recording material carrying the unfixed...
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5592275 |
Image fixing device with oil application roller for image forming apparatus
A fixing device incorporated in an image forming apparatus and for fixing a toner image on recording paper includes a fixing roller in which a heater is installed in the roller, a pressure roller...
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5582669 |
Method for providing a protective overcoat on an image carrying medium utilizing a heated roller and a cooled roller
A method and apparatus for laminating a protective overcoat carried on a web to an image carrying medium is particularly useful for covering an image carrying medium having a large area. A hot...
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5581340 |
Image-forming apparatus with a fixing device for fixing a toner image on a sheet-like material
An image-forming apparatus for forming an image on a sheet-like material, having an image-forming unit for forming a toner image on the sheet-like material, and a heated roller for heating the...
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5570171 |
Imaging fixing device including a heat roller with a release layer
An image fixing device is provided that includes a heat roller disposed rotatably, and a fixed way to apply pressure for contacting and applying pressure to the heat roller to form a nip portion. A...
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5568241 |
Thermofixing device for a printing or copying machines having a low temperature preheating saddle
A thermofixiug device for fixing toner images on a strip-shaped or sheet-like recording substrate (17) of an electrophotographic printing or copying machine contains a thermoprinting fixing station...
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5563696 |
Image fixing apparatus with power control during sheet passage
An image fixing apparatus includes a heater; a detector for detecting a temperature of the heater; a controller for controlling electric power supply to the heater to provide a predetermined...
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5559592 |
Sintered image transfer system
A method and apparatus for transferring a developed image made up of toner particles and a liquid carrier to copy sheet, wherein the developed image is heated to a temperature such that the toner...
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5559586 |
Image forming device having control grid with applied voltage of the same polarity as toner
In the invention, toner on a toner carrier is charged with negative polarity and attracted by applying positive voltage to a backing electrode placed at the back of a transfer belt. Voltage is...
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5555074 |
Electrophotographic apparatus and electrophotographic method
The disclosure is concerned with an electrophotographic apparatus comprising a toner image supporting member on which a toner image developed on an electrostatic latent image is formed,...
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5546161 |
Image forming system having main power source
An image forming apparatus includes a recording sheet supplying portion for supplying a recording sheet and an image forming device for forming an image on the recording sheet supplied from the...
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5546175 |
Image fixing device and method thereof
The present invention provides an image fixing device for fixing toner on a transfer member comprises a heat roller which is a hollow cylindrical member rotatably supported at both end portions and...
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5543905 |
Toner fixing device for image forming apparatus
A fixing device has a hollow fixing roller, and a pressing roller pressingly contacting the fixing roller to cooperate with the fixing roller to form a nip portion therebetween so as to fuse and...
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5532806 |
Image fixing apparatus having means for preventing temperature unevenness
An image fixing apparatus includes a heating member; a film in slidable contact with the heating member; a pressing roller cooperable with the heating member to form a nip with the film...
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5526103 |
Induction heating fixing device
An induction heating fixing device comprises a heat roller in which coil assemblies are disposed. The coil assemblies are aligned axially of the roller to produce magnetic flux in a direction...
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5500722 |
Web with tube oil applicator
Release Agent Management system for a heat and pressure fuser for fixing black toner images in low and high volume imaging machines and also for fixing color images. An auxiliary oil supply is...
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5499089 |
Toner image fixing device with deformable cylinder
The present invention is intended to save warm-up time of a toner image fixing device for fixing a toner image by heating and reduce manufacturing cost of the device. Elastically-deformable...
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5499088 |
Color toner image fixing apparatus having a back-up member, heater and film with a deformable surface layer
A heating and color-mixing apparatus includes a heater; a film movable together with a recording material supporting a multi-layered unfixed toner image; a pressing member cooperative with the film...
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5497218 |
Three point thermistor temperature set up
Thermistors are calibrated by taking three thermistor resistance measurements at various temperatures. The resistance values are converted or transferred to Analog to Digital (A/D) bits or bit...
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5497223 |
Method for fusing developed image
A method of fusing and fixing a liquid toner image on a substrate. The image includes a carrier liquid and a non-volatile portion including thermoplastic toner particles which are plasticized by...
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5493380 |
Fixing device with means for limiting a distance between heating and pressing member
In a fixing device, a limitation member for preventing the center distance between a heating member and a shaft of a pressing roller from being reduced does not limit the center distance in an...
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5493378 |
Image forming apparatus having a multispeed heated pressure fuser and method of use
A toner image carried by a receiving sheet is fused by heat and pressure applied by first and second fusing members. To compensate for heat lost from the pressure member to the receiving sheet, the...
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5493374 |
Apparatus for controlling sheet velocity
An apparatus in which an advancing copy sheet is disclosed. The apparatus includes a moving imaging member having a toner image thereon. The copy sheet contacts an imaging member to transfer a...
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5493377 |
Continuous form printer
An electrophotographic printer includes a fixing unit having a movable pressure roller, movable toward and away from a heat roller. The heat roller of the fixing unit is above a plane formed...
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5493376 |
Thermally stabilized polyorganosiloxane oil
A thermally stabilized polyorganosiloxane oil including a polyorganosiloxane oil and as the thermal stabilizer the reaction product of chloroplatinic acid and a member selected from the group...
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5489761 |
Method of controlling fuser during standby
Heatset of a fusing roller in a fuser in which the rollers are not separated during standby is prevented by periodically rotating the rollers. To prevent a temperature surge caused by elimination...
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5488467 |
Laser printer paper handling system
A laser printer paper handling system employing separately controllable traction rollers having a registration roller and a fuser pressure roller which are separable from their associated pressure...
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5486903 |
Image forming apparatus with paper thickness detector
The present invention has a detection device for detecting the thickness of a recording material by using an air capacitor, and an image forming device for forming an image on the recording...
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5486908 |
Fixing unit having heating roller and pressure roller
A fixing unit is included in a image forming apparatus, and includes a heating roller and a pressure roller. A separating layer is formed on a surface of the heating roller, and an elastic member...
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5481349 |
Electrophotographic image fixing device avoiding offset in the image by means of differential roller speed
An electrophotographic image fixing device having preventing offsetting and affording images of high quality is provided. The electrophotographic image fixing device has a heating roller 1, made up...
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5481347 |
Removable rollers in an image fixing device
An image fixing device includes a fixing roller having bearings at each end, a backup roller held in pressure contact with the fixing roller, and a frame receiving the fixing roller and backup...
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5481350 |
Heat roller fixing device divided into first and second frames and with positioning members of the first frame
A heat roller fixing device has a fixing roller into which a heater is built and a pressing roller which rotatably presses on the fixing roller so that a non-fixed image is fixed on a paper sheet...
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5471289 |
Fixing device having a skew compensation capability
A fixing device incorporated in an image recording apparatus has a heater 24 for fixing an image formed on a sheet 11 by heating a toner 12 constituting the image, and a thin endless belt 21 for...
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5467178 |
Pressure roller for reducing media curl and wave in electrophotographic printers
In the typical fuser, the pressure roller is end mounted to the fuser assembly. Such a mounting creates a higher pressure on the ends of the roller. By removing deformable material from the ends,...
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5463454 |
Method of forming fixed images using encapsulated toner
A method of forming fixed images including uniformly charging a photoconductor, selectively exposing the photoconductor to light to form an electrostatic latent image, developing the electrostatic...
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5453824 |
Electro-photographic method and device with thermal fixing with reduced noise
An electro-photographic printing device has a development location where toner is transferred onto a drum in proportion to the amount of light charges on the drum and a transfer location where...
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5450183 |
Image forming apparatus and method for producing high gloss duplex images
High gloss is provided for multicolor images formed on opposite sides of a receiving sheet in a double pass system using a fuser having a smooth, soft pressure roller surface. Preferably, a thin...
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