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| Number | Title | Issue Date |
| 8180269 | Resistive heating hot roll fuser A fuser roll adapted to fuse toner on the surface of a recording medium is disclosed. The fuser roll includes a non-metallic core having an outer surface, and a resistive heating element covering at least a portion of the outer surface of the core. A current transmi... | 05/15/2012 |
| 8175509 | Image forming apparatus with fixing unit having magnetism adjusting capabilities A fixing unit of an image forming apparatus includes a magnetism adjusting unit switching the position of a shielding member between a shielding position where the shielding member is positioned inside the sheet-conveyed region to shield the pass of the magnetism an... | 05/08/2012 |
| 8131198 | Image forming apparatus, fixing unit, and image forming method with improved heating mechanism An image forming apparatus includes an image forming mechanism to form a toner image on a recording medium according to image data and a fixing mechanism to fix the toner image on the recording medium. The fixing mechanism includes a fixing member and an external he... | 03/06/2012 |
| 8050611 | Fixing device and image forming apparatus Plural main cores and plural sub-cores are arranged spaced apart from each other along a direction orthogonal to a rotating direction of a heat belt. The plural main cores are opposed to a first area where a sheet having first width in the heat belt passes. The plur... | 11/01/2011 |
| 7769335 | Fixing apparatus A fixing apparatus according to the present invention ensures a nip width larger than a certain value by a heating roller which has a thin film metal conductive layer, and a foamed rubber layer which is bonded to the end part of the metal conductive layer, formed wi... | 08/03/2010 |
| 7756460 | Fixing device and image forming apparatus A fixing device is provided in image forming apparatuses such as a printer and the like and performs a fixing by heating to a recording sheet on which a toner image is transferred. The fixing device includes: a heating source adapted for performing fixing of a toner... | 07/13/2010 |
| 7711306 | Externally heated fixing apparatus with endless belt and image forming apparatus including the same A center distance between heating rollers for suspending an external heating belt is fixed, and a peripheral length of the external heating belt is set so that a tension is not exerted to the external heating belt when the external heating belt is not pressed agains... | 05/04/2010 |
| 7684746 | Image forming apparatus having fixing device with external heater Support rollers suspending an endless belt are arranged so that a distance between each support roller and a fixing roller is smaller than a height of a belt regulating member provided on each side of the support roller in moving the support rollers to the second po... | 03/23/2010 |
| 7668497 | Image heating roller, image heating heater, with microwave blocking layer An image heating roller for heating a toner image on a recording material. The image heating roller includes a heat generation layer for generating heat by a microwave introduced into a hollow portion of the image heating roller. The image heating roller further inc... | 02/23/2010 |
| 7668498 | Fixing apparatus A fixing apparatus according to the present invention ensures a nip width larger than a certain value by a heating roller which has a thin film metal conductive layer, and a foamed rubber layer which is bonded to the end part of the metal conductive layer, formed wi... | 02/23/2010 |
| 7657217 | Image heating apparatus and method for manufacturing image heating apparatus An image heating apparatus includes a heating roller for heating an image on a recording material; a coil unit disposed in said heating roller and including a coil for induction heat generation in said heating roller; a supporting member for rotatably supporting sai... | 02/02/2010 |
| 7653338 | Fusing unit and image forming apparatus including the same A fusing unit of an image forming apparatus, includes: a heating lamp having a heating unit, and a tubular unit accommodating the heating unit; a heating roller accommodating the heating lamp; and a pressing roller to be pressed toward the heating roller; the tubula... | 01/26/2010 |
| 7603070 | Heat roller of image forming apparatus A heat roller of an image forming apparatus is capable of preventing a terminal from being broken and improving contact performance of the terminal. The heat roller includes a heat transfer pipe, a heat generating body disposed at the heat transfer pipe and generati... | 10/13/2009 |
| 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. The tubular heater includes a lead wire having a protruding end portion... | 06/16/2009 |
| 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 the inner surface. The coating changes its absorptivity (such as colo... | 05/12/2009 |
| 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 roller. The recording sheet having the toner image is inserted between t... | 03/31/2009 |
| 7460822 | 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 the inner surface. The coating changes its absorptivity (such as colo... | 12/02/2008 |
| 7442905 | Image heating apparatus An image heating apparatus includes magnetic flux generating means; a rotatable heat generation member for generating heat by a magnetic flux generated by the magnetic flux generating means to heat a recording material; a magnetic flux adjusting member, disposed bet... | 10/28/2008 |
| 7437114 | Heating roller and image fixing apparatus using the same A heating roller includes an exterior aluminum pipe preferably coated with a Teflon layer. A primer layer is disposed inside the exterior aluminum pipe. An outer insulating layer is disposed inside the primer layer. A heating coil is disposed inside the outer insula... | 10/14/2008 |
| 7428401 | Belt-type fixing device A belt-type fixing device is provided that achieves reduction in time required between start of rotation of a fixing belt upon reception of print starting signal in printing-standby status and recovery of a specified fixation temperature in a fixing nip. The ... | 09/23/2008 |
| 7425691 | Coil unit and fixing apparatus A fixing apparatus includes a mold (holding member) formed by injection molding to hold a coil so that the coil maintains a predetermined positional relation with respect to a heating roller, and capable of holding a temperature sensor which detects a temperature of... | 09/16/2008 |
| 7424234 | Image printer with common filter to filter common operating frequency band of fixing module and switch mode power supply module An image printer using a common filter to remove harmonic waves generated at a common operating frequency band of a fixing module to fix toner onto a print medium using high frequency power generated from a high frequency generator and a switch mode power supply mod... | 09/09/2008 |
| 7420141 | Thermal processing roller and temperature control apparatus for roller A thermal processing roller includes a heat transfer medium flowing path therein and heats a member to be processed abutting against a surface of the roller or absorbs heat therefrom by heat transfer fluid flowing through the heat transfer medium flowing path, where... | 09/02/2008 |
| 7418228 | Fuser systems and methods Embodiments use an apparatus comprising a media path that is adapted to transport media sheets within the printing apparatus. Fuser rolls are positioned along the media path, and the fuser rolls are adapted to fuse marking material on the media sheets as the media s... | 08/26/2008 |
| 7415235 | Image forming method and apparatus, image fixing unit, and induction heater used therein 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 a magnetic flux to induce heat in a support roller. The heat is transferred to a fixing belt contacting the suppo... | 08/19/2008 |
| 7411164 | Device for inductive injection of thermal energy into a printing form for fixing an image An image fixing device inductively injects thermal energy into a rotating printing form of a press for fixing an image formed on the rotating printing form by means of a digital imaging system. The fixing device has at least one inductor with at least one induction ... | 08/12/2008 |
| 7412197 | Heat roller having improved coupling structure to prevent slip of a roller cap for fixing apparatus A heat roller for a laser printer has a roller pipe, a resistive heat element accommodated in the roller pipe, an internal expanding pipe installed in the roller pipe which restricts the resistive heat element by pushing the resistive heat element toward the roller ... | 08/12/2008 |
| 7394045 | Image forming apparatus A heating apparatus includes a heat generation member for generating heat using magnetic flux; a coil for generating the magnetic flux by electric power supply thereto, the coil being disposed in the heat generation member, wherein a material to be heated is fed and... | 07/01/2008 |
| 7390995 | Image forming apparatus, fixing device and image heater having an adjustable exciting member An image forming apparatus includes a fixing device which fixes a toner image on a recording medium. The fixing device includes a heating device. The heating device includes a heat-generating member, an exciting member, and a changing device. The heat-generating mem... | 06/24/2008 |
| 7392005 | Image heating apparatus An image heating apparatus includes a rotatable heating member configured to heat an image on a recording medium at a nip, driving means configured to drive the heating member, an endless belt configured to form the nip with the heating member, and a driving roller ... | 06/24/2008 |
| 7389079 | Image heating apparatus and flexible sleeve used for the same The image heating apparatus includes a flexible sleeve including a stainless base layer; a heater being in contact with an inner circumferential surface of the flexible sleeve; and an elastic roller being in contact with an outer circumferential surface of the flexi... | 06/17/2008 |
| 7386243 | Heating apparatus and induction heating control method In an aspect of this invention, a fixing device includes a heating member including a first area and a second area formed of conductive members (e.g., aluminum and iron) having different magnetic permeability ratios, and an induction heating unit which generates a m... | 06/10/2008 |
| 7386265 | Fixing unit having heat roller with two parallel tubular heaters A fixing unit includes: a heat roller that is rotatably supported and that supplies heat for fixing; and a first and a second tubular heaters that are disposed in parallel in the heat roller along an axis thereof and that each have on an outer circumferential surfac... | 06/10/2008 |
| 7373094 | Fixing unit having a plurality of heaters, image forming apparatus and method of determining temperature detecting position of temperature sensor A fixing unit thermally fixes a toner on a recording medium by a fixing member having a plurality of internal heaters and an outer peripheral surface, and a temperature sensor detects a surface temperature of the fixing member at a temperature detecting position. At... | 05/13/2008 |
| 7372008 | Image heating apparatus with electric power supply stop means An image heating apparatus has a magnetic flux generator; a heat generating element for generating heat by a magnetic flux generated by the magnetic flux generator, the heat generating element being effective to heat an image on a recording material; an electric pow... | 05/13/2008 |
| 7370957 | Ink jet recording apparatus An ink jet recording apparatus which includes a recording head, and forms an image by ejecting printing liquid including a volatile organic compound (VOC) from the recording head onto a recording medium, wherein the ink jet recording apparatus includes a volatile or... | 05/13/2008 |
| 7369806 | Engagement method and system for an image forming apparatus An image forming apparatus includes an engagement piece, connected to a cylindrical member at a crease which extends in a direction crossing a circumferential direction of the cylindrical member, projecting radially outward from the cylindrical member. The engagemen... | 05/06/2008 |
| 7368687 | Heating apparatus, control method for same, and image forming apparatus Provided are revolving hot roller(s) 31; heating means 33 for heating zonal portion(s) in direction(s) of revolution of hot roller(s) 31; thermistor(s) 35 which is/are temperature detection means for detecting temperature(s) of hot roller... | 05/06/2008 |
| 7369805 | Fusing device of electrophotographic image forming apparatus A fusing device of an electrophotographic image forming apparatus. The fusing device includes a fusing roller that is heated to be a predetermined temperature, and a pressing roller that presses a sheet of paper passing between the fusing roller and the pressing rol... | 05/06/2008 |
| 7369787 | Image forming apparatus An image forming apparatus has a heating rotator 12 that is heated by a first heat source 18, a pressurizing rotator 24 that is heated by a second heat source 28, that is in pressure contact with the heating rotator 12, and that fo... | 05/06/2008 |
