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7623817 |
Fixing device and image forming apparatus having the same
A fixing device includes a pressing roller, a fixing belt to receive a rotation force transferred from the pressing roller and to rotate thereby, a nip forming member which is mounted inside the...
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7620338 |
Fixing apparatus having a curie point heater and image forming apparatus
A fixing apparatus has a heater that includes a magnetic shunt alloy whose Curie temperature is set higher than a fixing temperature; an induction heater that generates an alternating magnetic...
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7619185 |
Image forming apparatus and electric-power control method
An electric power supply is controlled below a maximum suppliable current value by detecting the applied current of a heater. The image forming apparatus includes a heater which includes heating...
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7609988 |
Heater, fixing unit and image forming apparatus having power supplied from chargeable auxiliary power supplying unit varied per unit time
A heater is operable with a main power supply unit and a chargeable auxiliary power supplying unit. The heater includes a heater part having one or a plurality of heater elements to receive power...
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7601930 |
Compression-resistant heating frame
Compression-resistant heating frame, comprising an upper plate and a lower plate which are secured to each other, and a heating layer interposed between the two plates. Force-absorption studs are...
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7599637 |
Image fixing apparatus
A fixing apparatus includes a control circuit which controls the electrifying to a first heater so that a temperature detected by a first temperature detection portion reaches a first target...
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7598476 |
Image forming apparatus having improved flicker characteristics and method thereof
A fusing apparatus in an image forming apparatus that heats a fusing unit by applying an induced current is provided. The flicker characteristics of the fusing apparatus are improved by gradually...
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7596348 |
Image heating apparatus
An image heating apparatus comprising first and second belts for forming a nip for heating an image on a recording material; a first pressing pad for pressing the first belt at the nip; a first...
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7595464 |
Infrared ray lamp and heating apparatus
The present invention provides an infrared ray lamp being small in size and high in efficiency and having high versatility so at to be easily adaptable to various applications, and also provides a...
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7593681 |
Laminated body, endless belt, fixing device, and image forming device
A laminated body has a heat generating layer having crystal grains of a first non-magnetic metal, and a base layer containing a second non-magnetic metal that is different from the first...
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7593680 |
Image forming apparatus including a fixing apparatus capable of effectively maintaining fixability for an extended period of use
An image forming apparatus includes a toner image forming mechanism that forms a toner image on a recording medium and a fixing mechanism that fixes the toner image on the recording medium. The...
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7587162 |
Multi-tap series ceramic heater cold spot compensation
An improved fuser includes a heater that enhances uniform heating by altering the localized resistance which alters the localized power output of a resistive trace at the point of contact with a...
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7582344 |
Heat roller
A heat roller having a cylindrical sheet-like heating element having a resistance member embedded in an insulating member. The sheet-like heating element is arranged between an inner tube and an...
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7579716 |
Power storage device and image forming apparatus
A power storage device includes an alternating current (AC) power source, a field effect transistor (FET), a capacitor bank, a direct current (DC) fixing heater, a step-down chopper circuit, and an...
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7567776 |
Fixing device and image forming apparatus
A fixing device includes a heating rotation body, a heat source and a pressurization member. The heating rotation body has an endless peripheral surface that moves circularly. The heat source heats...
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7560665 |
Imaging device temperature management
The present invention is directed to a method and apparatus relating to the thermal management of an image fixing device such as establishing the temperature of a component that engages with the...
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7558518 |
Fixing device for use in an image forming device
A fixing roller 30, which has an internal heating device and is supported to rotate around a cylindrical shaft 40, and a pressure roller 81 whose circumferential face presses against the...
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7551868 |
Image forming apparatus and image forming method
An image forming apparatus is disclosed, including a fixing device and a sheet storing member. The fixing device performs both tentative fixing and regular fixing. In at least one embodiment, the...
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7548719 |
Fixing unit including heat roller with tubular heater and fitting surface
A fixing unit includes: a casing; a heat roller that is rotatably supported and that supplies heat for fixing; and a tubular heater disposed in parallel in the heat roller along an axis thereof....
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7546052 |
Image forming apparatus and method of controlling charging the apparatus to reduce warm up time
When a main switch 11 is off, an electricity storage device 93 is charged with electric power of a commercial AC power supply 80 . When the main switch 11 is on and warming-up of a fixing...
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7542692 |
Image forming apparatus with detecting members for determining when set width is wrong
An image forming system has an image forming device for forming an image on a recording material in accordance with a set width of the recording material, and an image heating member. A first...
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7539450 |
Image fixing apparatus and image forming apparatus that maintains high efficiency in heat generation and reduces loss in power consumption
An image fixing apparatus stably maintains high efficiency in heat generation and reduces loss of electric power consumption for fixing an image, which includes a coil member to generate a magnetic...
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7539449 |
Image heating apparatus
A fixing apparatus 50 capable of reducing noise during a fixing operation using a fixing belt 1 having a metal layer includes the fixing belt 1 stretched between a fixation roller 2 and a...
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7538299 |
Media conditioner module
Embodiments herein include a media conditioning module for being connected between a media source supplying sheets of media and a printing device. The media conditioning module is adapted to remove...
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7536124 |
Image heating apparatus with detection of an abnormal state of heater element groups
An image heating apparatus includes a plurality of heater element groups each having a plurality of heater elements. The heater elements are arranged along a direction intersecting an advancing...
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7534978 |
Process chamber of an installation for the thermal treatment of printed circuit boards
A process chamber of an installation for the thermal treatment of printed circuit boards is described. The process chamber may include a fan wheel supported on a shaft parallel to the printed...
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7532848 |
Printing roll having a controllable heat absorbing internal surface
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...
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7532834 |
Fixing device and fixing method and image forming device
A fixing device ( 23 ) of the present invention includes a fixing roller ( 131 ) contacting a toner image surface, and a pressure roller ( 132 ) contacting a surface opposite to the toner image...
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7522854 |
Fixing device of image forming apparatus
A fixing apparatus of an image forming apparatus of the present invention, in arrival timing of a temperature falling area of a heat roller passing a nip at opposite position γ of an induction...
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7518089 |
Image heating apparatus including flexible metallic sleeve, and heater used for this apparatus
The present invention relates to an image thermal apparatus including a flexible metallic sleeve, the inner peripheral surface of which contacts a heater. In order to provide increased durability...
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7512371 |
Method and apparatus for image forming capable of effective image fixing using induction heating
An image forming apparatus includes a fixing unit for fixing a toner image on a recording sheet. In the fixing unit, a magnetic flux generator generates magnetic flux to induce heat in a fixing...
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7511249 |
Adjustment of temperature in a hot roller
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,...
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7505726 |
Fixing device and image formation apparatus
A fixing device includes a cylindrical fixing roller, an endless belt and a pressure member. The endless belt rotates along with the fixing roller. The endless belt is disposed at a position facing...
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7505722 |
Convective hot air impingement device with localized return paths
This is a pre-heater system especially useful in an electrostatic marking apparatus. It is used to heat the toner and paper (media) prior to the paper entering the conventional fuser station. Using...
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7504605 |
Heating apparatus
The heating apparatus of a surface-heating type, includes a rotary member, an opposing member that forms a nip with respect to the rotary member, and a heating member for heating a portion of a...
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7499658 |
Image forming apparatus including at least two thermostats to prevent overheating of the heating roller
An image forming apparatus, including a heat roller in which a heating source is embedded, a press roller installed close to the heat roller, the press roller contacting the heat roller with a...
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7491917 |
Fuser and image forming device
A fuser includes a magnetic flux generation unit to generate a magnetic flux, a heating member which is heated by electromagnetic induction of the magnetic flux, a fuser member to contact the...
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7491911 |
MEMS bubble generator for large stable vapor bubbles
A MEMS vapour bubble generator that uses a heater in thermal contact with a liquid to generate a bubble. The heater is energized by an electrical pulse that is shaped to have a relatively low...
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7480481 |
Heating and fixing device for fixing toner particles
A heating and fixing device for toner particles is provided, which includes a pressing element, at least one elastic element, a tube-shaped film, and a pressing roller. The elastic element is...
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7480480 |
Image heating apparatus with heat pipe for decreasing unevenness in temperature distribution
In a fixing apparatus capable of reducing unevenness in temperature distribution in an axial direction while reducing heat loss at an end portion, a fixing belt 11 extended around a fixation...
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7459658 |
Drum heater systems and methods
An internal heating system for an image transfer drum is disclosed that can include a box having a plurality of sides, an open side facing the drum and a heater element. The box can have small gaps...
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7456375 |
Image heating apparatus of induction heating type and excitation coil unit adapted for the use therein
An excitation coil unit for use in an image heating apparatus includes a coil formed with a conductor without an insulation covering and a heat-resistant insulating material covering the coil. It...
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7450872 |
Fixing apparatus and an image formation apparatus
A fixing apparatus and an image formation apparatus therewith are disclosed. According to the fixing apparatus, a heating range that is heated by electromagnetic induction caused by a current...
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7449662 |
Air heating apparatus
An embodiment of an air heating apparatus includes a mass to store heat energy and a heater to provide the heat energy to the mass.
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7447473 |
Fixing device with pressing member and an image forming apparatus having the same
A fixing device for fixing a toner image onto a recording medium, and an image forming apparatus having the same are provided. The fixing device includes a fixing roller heated by a heating source,...
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7446281 |
Heating device
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 (...
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7440722 |
Xerography methods and systems employing addressable fusing of unfused toner image
Methods and apparatus for performing addressable fusing and/or heating of a substrate undergoing xerographic processing are disclosed. The apparatus includes a fuser having an array of addressable...
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7437113 |
Image forming apparatus with magnetic flux shields and recovery operation
An image heating apparatus has a coil for generating magnetic flux, a rotatable heat generation member which generates heat by magnetic flux, a temperature detecting member for detecting a...
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7437110 |
Fixing device
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....
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7432473 |
Electrofusion machine with improved functions
A portable electrofusion machine includes: a power supply circuit having a triac configured to have a proper regulation for dropping a commercial voltage to a voltage adapted for a fitting; and a...
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