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Document Title |
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7218884 |
Fixing device
A fixing device has a fixing roller including an inside roller, an outside roller and a regulation member. The regulation member is disposed outside of both ends of the outside roller in the axial...
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7212761 |
Fuser and temperature control method
According to one aspect of the present invention, there is provided a fixing apparatus having a non-contact temperature detecting unit which detects temperature by sensing infrared rays emitted...
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7208708 |
Image heating apparatus having first and second electroconductive layers having different resistance characteristics
An image heating apparatus for heating an image on a recording material by heat generation of a heating member includes a coil configured to generate a magnetic flux by energization a heat...
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7209695 |
Image forming apparatus with detaching mechanism for fixing heater
The image forming apparatus has a fixing unit for heat fixing an unfixed image formed on a recording material at a nip, with the fixing unit having a rotary fixing member disposed for contacting...
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7205513 |
Induction heated fuser and fixing members
A coated member includes a substrate and a coating layer over the substrate where the coating layer includes at least one of ferromagnetic and magnetic particles dispersed in a binder. The member,...
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7206541 |
Image heating apparatus with nip portion pressure increasing downstream
An image heating apparatus for heating an image formed on a recording material, includes a heating member; a flexible member movable in contact with the heating member; an elastic roller for...
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7205515 |
Image forming apparatus
In an image forming apparatus according to the present invention, a shield plate 202 which is made of a specific material and has a specific thickness is provided between an exciting coil and at...
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7205512 |
Fixing device using induction heating
An electrophotography fixing device has a heating roller and an induction heating device. In order to improve heat resistance, heat radiating performance and insulation performance and in order to...
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7205514 |
Heating apparatus with movable magnetic flux adjusting means
An image heating apparatus has a magnetic flux generator for generating a magnetic flux; a heat generation member for generating heat by the magnetic flux generator; a magnetic flux adjustor for...
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7203453 |
Fixing device
A fixing device includes an endless fixing belt which is tensionless in a circumferential direction in a center part in a lateral direction and supported to circularly move, a heating device that...
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7199339 |
Heating apparatus
A heating apparatus for heating a material to be heated by heat generated by induction heat generation member includes a magnetic flux generator, a holder for holding and fixing the magnetic flux...
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7197270 |
Induction heating apparatus with rotatable magnetic flux suppressing member
A heating apparatus of an electromagnetic inductive heat generating type has a coil for generating a magnetic flux, a roller member for generating heat by the magnetic flux from the coil, and...
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7196287 |
Unit assembly structure and fuser of image formation apparatus
A fuser includes a fusing roll unit having a fusing roll, a pressurizing roll unit having a pressurizing roll and a coil spring resiliently biasing the pressurizing roll. The units are secured by a...
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7194233 |
Variable power fuser external heater
An external heater for a fuser assembly for a reproduction apparatus. The fuser assembly includes a fuser member for fusing a marking particle image to a receiver member. The external heater has a...
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7187883 |
Image forming apparatus having fixing device with cooling device
An image forming apparatus includes a fixing device for fixing developer on a recording medium; a heating device for heating the fixing device; a cooling device for cooling the fixing device; a...
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7187899 |
Fuser having reduced axial temperature droop
An apparatus is provided for fixing toner to a substrate including a heated fusing roller having a fusing surface. A heater element is located inside the fusing roller. A nip forming member...
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7187894 |
Image forming apparatus having a heat belt
There is provided an image forming apparatus having an image forming section for forming an unfixed image on a transfer medium and a fixing device for fixing the unfixed image by sandwiching and...
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7184697 |
Fixing apparatus having an induction heating control circuit
A fixing apparatus according to an embodiment of the present invention has a plurality of coils which are independently controlled by an inverter circuit. These coils have shapes to make the...
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7171148 |
Fixing device, image forming device, and manufacturing method of fixing device
A fixing device comprising a fix member for touching an unfixed image on a recording medium, and a press member for being pressed against the fixing member, so as to fix the unfixed image on the...
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7171149 |
Fixing apparatus
One of the amount of induction heating by a coil and that of induction heating by coils is increased/decreased relative to the other, and the ratio of the amount of the induction heating by the...
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7167670 |
Electro-photographic apparatus with a heating roller and pressurizing member
An electro-photographic apparatus for conducting printing includes a fixing member fixing an unfixed toner image on a surface of a recording medium onto the recording medium. The fixing member...
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7162194 |
Image heating apparatus
The present invention provides an image heating apparatus including:
a conveying roller for conveying the recording material; a heat supply member which supplies heat to the conveying...
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7162168 |
Fixing apparatus
A fixing apparatus includes a magnetic flux generator that generates a magnetic flux. A heater is disposed in the magnetic flux and generates heat by electromagnetic induction to heat a toner image...
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7158748 |
Fusing device of an image forming apparatus and method thereof
A fusing device of an image forming apparatus and method thereof are provided. The fusing device and method include a conductive member having a linear portion for contacting a printing medium, a...
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7151907 |
Fixing device, image forming apparatus using the same and process cartridge
A fixing device configured to fix the toner image borne on a side of a transfer material. The fixing device including a heating member configured to heat the toner image while contacting the toner...
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7150909 |
Electrophotographic image-receiving sheet and process for image formation using the same
The present invention aims to provide an process for image formation using an electrophotographic image-receiving sheet having excellent anti-offset properties, adhesion resistance, paper transport...
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7139500 |
Image fusing device and image forming apparatus
This invention is intended to control the amount of power to be supplied to a fusing heater below a maximum applicable current value. The engine controller supplies electricity to both of two...
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7136615 |
Heat fixing unit with improved belt handling
A fixing unit that is provided in an image forming device and fixes a toner image transferred to paper is constructed of two belts, belt guides each of which guides the inner periphery of each of...
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7135660 |
Induction heating type fixing device for an image forming apparatus and induction heating coil therefor
An induction heating type fixing device for an electrophotographic image forming apparatus is disclosed. An inducting heating coil has a plurality of bobbins each having a particular diameter and...
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7136602 |
Image forming apparatus and method for controlling fixing temperature of the same
If, in a standby state, no operation is executed for a control panel ( 11 ) or ADF ( 13 ) before the elapse of a predetermined time measured by a timer ( 12 ), the set temperature of a fixer ( 20 )...
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7133636 |
Fixing device and image forming device provided with the same
A fixing device has a fixing unit and a temperature detection unit. The fixing unit includes a heat roller provided with a roller section and a heater section, and a pressure roller in pressure...
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7132631 |
Induction heating for image flexing with means for adjusting magnetic flux
A heating apparatus of an electromagnetic induction heating type includes a coil and a roller which generates heat by the action of magnetic flux generated from the coil. A recording material is...
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7133634 |
Circulating body and fixing device
A circulating body driven with its surface being circulated along a fixed route and having a base material provided with a tubular outside peripheral surface and a surface layer covering the...
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7133635 |
Fusing unit used with a color laser printer
A fusing unit used with a color laser printer includes a pair of rollers which heat and press a sheet of paper, onto which an image is transferred, and fuse the transferred image on the sheet of...
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7130572 |
Image heating apparatus using a flexible sleeve
The image heating apparatus for heating an image formed on a recording material includes a flexible sleeve and a regulating member disposed at a position opposed to an end surface of the sleeve for...
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7129448 |
Heating apparatus fusing apparatus and image forming apparatus
A heat apparatus for an electromagnetic induction heating system comprises a heat roller that comprises magnetic and conductive material. The heating apparatus also comprises a magnetic excitation...
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7130556 |
Fixing unit
A fixing device of the present invention has first and second thermistors which detect the temperatures at predetermined positions in the longitudinally direction of a heating roller, first and...
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7125638 |
Image forming method and image forming apparatus for same
An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone...
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7127203 |
Fuser member with reinforced slot
A fuser member includes a metallic core cylinder with an axially extending slot defined in an end region of the core cylinder. An integral flange is formed from material from the slot. The flange...
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7125636 |
Toner and image-forming system
The present invention provides a toner capable of effectively controlling hot offset of a toner in fixing characteristics, while effectively preventing the winding of a recording medium round a...
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7122768 |
Heating roller, image heating apparatus, and image forming apparatus
A heating roller ( 21 ) includes a heat generating layer ( 22 ) that generates heat by electromagnetic induction, a heat insulating layer ( 23 ), and a supporting layer ( 24 ), which are provided...
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7122769 |
Induction heating apparatus for image fixing
In an electromagnetic induction heating-type heating apparatus for moving a temperature decreasing member toward or apart from an effective position where a temperature in a predetermined area is...
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7118843 |
Method for manufacturing toner, toner, fixing device, and image forming apparatus
A toner having high mechanical strength and being capable of exhibiting a sufficient fixing property in a wide temperature range, and a method for manufacturing such a toner are provided. Further,...
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7113722 |
Fusing apparatus for an image photographing apparatus and method thereof
A fusing apparatus and method for an image forming apparatus comprise a housing, a first roller mounted in the housing, a second roller rotated in contact with the first roller, a heater movably...
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7113718 |
Method and apparatus for reducing image artifacts caused by release fluid in an electrophotographic machine
An electrophotographic machine includes a fusing station configured for fusing an image to an image substrate by applying fusing process parameters to the image substrate. A controller adjusts the...
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7113736 |
Image forming apparatus
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...
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7113737 |
High frequency fixing apparatus
A fixing apparatus comprising a heating roller, a coil provided in the heating roller and configured to generate a high-frequency magnetic field, and capacitors and that constitute a resonant...
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7109441 |
Heat plate, heating element, belt type fixing device and image forming apparatus
A heat plate for fixation includes: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least,...
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7109449 |
Heating apparatus capable of controlling magnetic field strength based on temperature distribution data of rotational member in terms of circumferential direction
A heating apparatus includes a magnetic field generator that generates an alternating magnetic field, a rotatable member disposed in the alternating magnetic field and capable of generating heat by...
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7105783 |
Fixing device using induction heating
In a fixing device according to this invention, coils are formed on a coil bobbin having a predetermined shape at an induction heating portion including a plurality of coils. In order to minimize...
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