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6014539 |
Image heating device
An image heating device includes a protective member for protecting an end portion of an endless film. The protective member has a hardness which is lower than that of the film. Hence, even if the...
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6007657 |
Method for increasing thermal conductivity of fuser member having elastomer and anisotropic filler coating
A method for increasing the thermal conductivity of a fuser member for use in electrostatographic, including digital, apparatuses, by orienting anisotropic fillers in an elastomer layer in a manner...
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6006052 |
Fixing method and fixing device
A fixing method for fixing an unfixed toner image formed on a recording material by transporting the recording material to a contact portion between a fixing roller and a pressurizing mechanism for...
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6002894 |
Single-pass fusing of sheet-fed multi-layer duplex copies
A fusing station (25) of an electrographic apparatus fixes in a single pass a duplex resinous powder color image (8, 18) to a support material in sheet-form (9) as the sheet is moved over a...
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6002909 |
Image forming apparatus for preventing generation of image defects from deformation of a pressure roller
An image forming apparatus having a fixing unit for performing a fixing process by bringing a fixing member having a heat source and a pressurizing member having an elastic layer into contact with...
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6002908 |
Drive device, and fusing device and transfer device including said drive device
The present invention provides a drive device having slip stoppers that can reliably prevent skewed movement of or damage to a belt. The drive device pertaining to the present invention has a...
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5998761 |
Variable dwell fuser
A variable dwell heat and pressure belt fuser for imparting selectable gloss to color toner images. A hybrid belt/roll fuser which has both a roll/roll nip and a belt/roll nip where the size of the...
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5999789 |
Fixing device for an image forming apparatus
A fixing device for thermally fixing a toner image formed on a recording medium by an image forming apparatus is disclosed. A heat roller included in the fixing device is prevented from moving in...
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5991591 |
Fuser using ceramic roller
A fuser for fixing particulate imaging material to a receiver sheet, including a fuser roller and a pressure roller in contact with the fuser roller which engage each other at a fixing nip, wherein...
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5991565 |
Fixing device
In a device for fixing a toner image, provided with a heating roller including a heater, the heating roller having a length larger than a possible largest size sheet to be fixed so that the heating...
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5991564 |
Electrophotographic duplex printing media system
A method and system media sheet handling in an electrophotographic color desktop printer are disclosed wherein a media sheet is imaged with toner on both sides of the media sheet without smudging...
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5985419 |
Polyurethane and doped metal oxide transfer components
A polyurethane transfer component useful in intermediate transfer, bias transfer, and transfix applications, the polyurethane film having electrically conductive doped metal oxide fillers, the...
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5987294 |
Toner fixing apparatus
A fixing apparatus including a heat roller having a heat source therein; and first and second pressing rollers arranged to be pressed sequentially against the heat roller beginning with a more...
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5978618 |
Image forming apparatus with controlled heat sources in fixing unit
An image forming apparatus is provided with a fixing unit having at least one fixing heat roller and a plurality of heat sources with respect to the one fixing heat roller, and a control unit for...
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5974295 |
Heat and pressure fusing device
A heat and pressure fusing device (10) for fixing toner images to a receptor support, the device having a fixing (12) and a pressure (13) roller rotating in contact with each other, wherein the...
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5974294 |
Fixing device having infrared transparent member
A fixing device includes a hollow cylindrical sleeve provided to surround a hollow glass roller containing a halogen heater therein, and a pressure roller that contacts and presses the glass roller...
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5970301 |
Device and method fixing and glossing toner images
A substrate carrying an unfixed toner image is fed through a contact zone which extends continuously from an entrance to an exit (18; 78). The zone is defined by an endless surface such as a first...
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5966577 |
Heater and heat fixing apparatus having a resistance adjustment portion
A heater includes a substrate; a heat generating resistor on the substrate to generate heat when supplied with electric energy; a pair of electrodes for supplying the energy to the heat generating...
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5966578 |
Heat-pressure fixing device and silicone rubber roller
A heat-pressure fixing device for fixing a toner image is composed of a fixing member, a pressure member and an oil applicator for applying dimethylsilicone oil as a release oil. The fixing member...
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5956554 |
Sheet drying prevention device
A printer has one or more fans in the vicinity of a fixing device to blow air directly onto a continuous form when printing is stopped and when rollers in the fixing device are separated. The fan...
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5956547 |
Image forming device equipped with fixing device
Enabling to perform the pressurization release and the fixture release simultaneously by one action when taking out the fixing device from the image forming device for removing the jammed paper and...
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5953039 |
Photothermographic drum processor using low heat conductivity and low heat capacitance rollers
A processor for photothermographic media comprising: a rotatably mounted heated drum; and a plurality of rollers spaced around the periphery of the drum to hold down photothermographic media to the...
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5950060 |
Fixing device
A fixing device of the belt system is provided in which slippage of a heating belt is prevented from occurring so that a recording member is stably transported, and the inner face of an end portion...
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5946025 |
Thermal drum processor assembly with roller mounting assembly for a laser imaging device
A film thermal processor assembly for use in an imaging system. The assembly includes a retention member for receiving a plurality of thermal processor rollers and their shaft mounted sleeve...
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5943542 |
Dual levels of functional and non-reactive release agents for fusers
A heat and pressure fuser and a Release Agent Management (RAM) system therefor. A dual function RAM system is provided. The dual function RAM system supplies functional release agent material...
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5926680 |
Fixing unit
A fixing unit, used for fixing images on a recording sheet, includes a heat roller accommodating a heater, and a press roller movable between a retracted position and an operating position. The...
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5922440 |
Polyimide and doped metal oxide intermediate transfer components
A polyimide film component useful in intermediate transfer, bias transfer, and transfix applications, the polyimide film having electrically conductive doped metal oxide fillers dispersed therein,...
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5903810 |
Fixing device with a closed space
A fixing device including a heat roller for heating a sheet, a press roller, pressed against the heat roller, for pressing the sheet on the heat roller, an aluminum plate provided along the outer...
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5893019 |
Fusing device with rollers having different speeds, and image forming apparatus using same
In a fusing device having first to third rollers, the first and second rollers are forcibly driven so that a peripheral speed of the third roller is higher than of the first roller. Further, a...
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5887236 |
Image forming apparatus
An image forming apparatus includes a fixing unit including at least a pair of rollers which thermally fix a toner image formed on a surface of a recording medium by pressing against the recording...
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5881349 |
Image induction heating apparatus
An image heating apparatus is provided with: a moving member having an electrically conductive layer and arranged to move together with a recording medium, an exciting coil for generating a...
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5875381 |
Release agent applied to fuser roll via paper
A heat and pressure fuser and Release Agent Management (RAM) systems therefor. The RAM system deposits release agent material on toner images on a substrate such as plain paper. The RAM system...
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5870660 |
Heating device
A heating device for use in an induction heating type fixing system is composed of a sleeve 12 made of an electrical conductive material and an electromagnet 13 with a coil 20 and a core 18. It is...
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5860052 |
Image heating apparatus
An image heating apparatus includes a heater provided with a heat generating element generating heat upon electric energization to a base; a supporting member for supporting the heater; a back-up...
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5853893 |
Toner fuser member having a metal oxide filled fluoroelastomer outer layer with improved toner release
A toner fuser member having improved toner release properties comprises a substrate and an outermost layer comprising a cured fluoroelastomer that includes at least about 21 mole percent of...
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5842100 |
Fixing unit
A fixing unit includes a heat roller accommodating a heater and a press roller movable toward and away from the heat roller. Both shaft members of the heat roller are supported by two receiving...
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5839042 |
Fixing device in image forming device
A fixing device having a heat roller and a pressure roller in nipping relation therewith. The heat roller includes a metallic sleeve member and a halogen lamp disposed in a hollow space of the...
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5835834 |
Fuser for fixing toner on recording paper with heat and pressure
A toner image part of a paper is transferred to a contact area (12) of the main roller (3) and heat roller (6) and the toner (T) is heated by the heat roller (6) and is then fused sufficiently. In...
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5835835 |
Fixing unit having press roller opening/closing mechanisms
A fixing unit includes a heat roller accommodating a heater and a press roller movable between an operating position in which the recording sheet is nipped by the rollers and a retracted position....
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RE35923 |
Fixing device, fixing method, and recording apparatus
A fixing device for fixing the toner on the recording medium comprising a pair of fixing rollers which face each other and rotate in opposite direction to form a nipping and fusing section for...
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5805968 |
Ceramic rollers
A fuser for fixing particulate imaging material to a receiver sheet, includes two rollers which engage each other at a fixing nip, wherein pressure is used in fixing the particulate imaging...
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5790931 |
Fixing device
A heat-resistant sheet, which has slits formed therein, is provided between a fixing roller and a pressure member. The heat-resistant sheet, which has a thickness of 300 μm, is coated with a...
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5785440 |
Form feeding stabilization device
A motion-absorbing region is formed in a continuous form, and a passively rotatable fixing roller is moved into contact with the continuous form when the motion-absorbing region is formed. The...
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5787319 |
Fixing unit for use in image forming apparatus
The invention provides a fixing device in which a temperature fuse melts quickly when a heat roller becomes overheated. The heat roller, to which pressure is applied by a pressure roller placed in...
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5774776 |
Heater and image heating device
There is disclosed an image heating device including a heater in which a heat generating element and electrodes to supply a current to the heat generating element are provided on a longitudinal...
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5774763 |
Energy efficient fixing device having a fast response
In an image forming apparatus, a fixing device has a structure in which a film formed on an outer face of a hollow cylinder is heated by a heat ray of a heater. In this structure, the heating...
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5765075 |
Temperature sensor and method and apparatus for using the temperature sensor and fixing apparatus in combination with a temperature sensor
A temperature sensor which contacts with a curved-surface body to be measured to sense a temperature thereof is provided with a support member having a bow-shaped surface; a thin film strung and...
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5763129 |
Method of increasing gloss and transparency clarity of fused toner images
This invention provides a method of increasing the gloss value of a fused toner image comprising the steps of: a) transferring toner to a receiver to make a toner bearing receiver; and b) passing...
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5753348 |
Fluororesin tube-covered fixing roller, and image formation apparatus
A fixing roller for thermally fixing an unfixed toner image is comprised of a core cylinder and a fluororesin tube fused on the core cylinder. The core cylinder is provided on its periphery with a...
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5724638 |
Fixing device for image forming apparatus
A fixing device for an image forming apparatus having low heat losses. The fixing device consists of a fixing roller and a compression roller for abutting upon it under pressure. The fixing roller...
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