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| Number | Title | Issue Date |
| 8063341 | Image forming apparatus The fixing apparatus of an image forming apparatus has a heating device, a feeding device and control device, wherein in a case of continuously forming images onto the material to be heated, wherein the control device changes the turn-on time ratio in accordance wit... | 11/22/2011 |
| 8058587 | Thermal activation printer The present invention includes: a printing portion (12) for performing printing on a printing layer of a sheet material (5) including a sheet-like base having one surface provided with the printing layer and another surface provided with a heat-sensiti... | 11/15/2011 |
| 8035060 | Inkjet printhead with a plurality of vapor bubble generators The invention provides for an inkjet printhead having a plurality of micro-electromechanical vapor bubble generators. Each bubble generator includes a nozzle in fluid communication with an ink chamber, and a heater positioned in thermal contact with ink in the chamb... | 10/11/2011 |
| 8022335 | Rapid warm-up and cool-down pressure roll assembly and a fusing apparatus including same A rapid warm-up and cool-down pressure roll assembly is provided and includes (a) a rotatable pressure roll including a cylindrical sleeve having an outer surface, and an inner surface defining a hollow interior to the rotatable pressure roll; (b) a thermoelectric a... | 09/20/2011 |
| 7977607 | Frame for holding heating elements of an electric heater of a ventilating, heating and/or air conditioning unit A frame for receiving a heating element for an electric heater of a ventilating, heating and/or air conditioning unit of a vehicle, in particular. The frame is shaped in the form of a hollowed-out box whose large faces, intended to be traversed by airflow conveyed b... | 07/12/2011 |
| 7723645 | Switching device and system A heating assembly for a printing device includes a heating device configured to be energized or deenergized. A switching device includes a bimetallic element efficiently thermally coupled to the heating device and configured to deenergize the heating device in a de... | 05/25/2010 |
| 7700895 | Sheet feeding apparatus A sheet feeding apparatus including a stacking portion for stacking a plurality of sheets thereon, a sheet feeding portion for feeding the sheets stacked on the stacking portion, a fan for sending air to the sheets to loosen the sheets stacked on the stacking portio... | 04/20/2010 |
| 7700896 | Image heating device using induction heating system An image heating member includes a first region having a Curie temperature higher than a preset temperature, and a second region having a Curie temperature lower than the Curie temperature of the first region. A width of the first region in a conveying direction of ... | 04/20/2010 |
| 7671300 | Fuser assembly having heater element with spaced-apart features A heater element is provided adapted to heat a belt in a fuser assembly. The heater element comprises laterally spaced-apart features extending beyond a center section provided between the features. The features and center section are adapted to face an inner surfac... | 03/02/2010 |
| 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 increasing the amount of induced current applied to the fusing unit fo... | 10/06/2009 |
| 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 heating apparatus that uses the infrared ray lamp; in the infrared ra... | 09/29/2009 |
| 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 image fixing device in an image forming apparatus. ... | 07/14/2009 |
| 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 for the sliding face of the heater, an imide resin that contains silic... | 04/14/2009 |
| 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, wherein the first region is coated with a first type of material. The in... | 03/31/2009 |
| 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 power, sub-nucleating portion and a high power portion that nucleates the ... | 02/17/2009 |
| 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 (239) depends on orientation of the outer su... | 11/04/2008 |
| 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 |
| 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 heating elements in radiative communication with a substrate through ... | 10/21/2008 |
| 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 temperature of the heat generation member, an energization controller portion... | 10/14/2008 |
| 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. The heat source 105 is provi... | 10/14/2008 |
| 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 printer unit integrated with the electrofusion unit, for printing info... | 10/07/2008 |
| 7427727 | Fixing apparatus and an image formation apparatus A fixing apparatus and an image formation apparatus are disclosed. The fixing apparatus includes two or more heaters with temperature detecting function that generate heat with electric current and detect temperature; a heating unit that includes the heater with the... | 09/23/2008 |
| 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 |
| 7424235 | Image forming apparatus In an image forming apparatus including a fixing device that uses a pressure belt as at least one of two pressing members, a warm-up time and time for shifting to a standby state are reduced with simple control without increasing power consumption. The two pressing ... | 09/09/2008 |
| 7421224 | Heating device, auxiliary power supplying device, auxiliary power supplying system, fixing device, and image forming apparatus A heating device of the invention comprises a heater, a main power supply, and an auxiliary power supply. The heater includes a main heating element which generates heat with power supplied from the main power supply, and an auxiliary heating element which has a res... | 09/02/2008 |
| 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 |
| 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 |
| 7408320 | Apparatus for power control by phase gating and a method for harmonic reduction The invention relates to an apparatus for power control by phase gating of an AC voltage, which supplies an electrical load (14), and for reduction of harmonics which are created by the phase gating, in particular up to a region of 4 kHz, preferably in the re... | 08/05/2008 |
| 7406286 | Fixing device and image forming apparatus including a heating roller with multiple heaters In a fixing device for causing a pressurizing roller to come in pressure contact with a heating roller including a central region heating heater for heating a central region and a side end region heating heater for heating a side end region on an outside of the cent... | 07/29/2008 |
| 7406287 | Fixing device and image forming apparatus provided with fixing device A disclosed fixing device includes: a heat roller unit having a rotatable roller having an elastic body on a surface thereof and a heating unit heating the roller; a pad disposed along a circumference of the elastic body of the heat roller; a belt member disposed on... | 07/29/2008 |
| 7399947 | Thermal processor with temperature compensation A thermal processor including a rotating drum including an internal heater configured to heat and maintain the drum at a desired set-point temperature, and a plurality of pressure rollers, including a first pressure roller, circumferentially spaced along a segment o... | 07/15/2008 |
| 7399264 | High frequency induction welding of austenitic stainless steel for pressure vessel tubing A process for producing high pressure tubing from austenitic stainless steels. The process entails passing a continuous austenitic stainless steel strip through pre-weld rolls enclosed in a forming housing to produce a continuous tubular shape having opposing edges ... | 07/15/2008 |
| 7397017 | Image heating apparatus A manufacturing method for an image heating apparatus for heating an image on a recording material by a heat from a heat generating element for producing heat by a magnetic flux generated by magnetic flux generating means, the apparatus including a magnetic flux con... | 07/08/2008 |
| 7392004 | Image forming apparatus and system with fixing unit that changes intensity of press-contact force between rollers An image forming apparatus includes (a) an openable and closable cover, (b) a fixing unit, and (c) a press-contact releasing member. The fixing unit has a first roller, a second roller that can be pressed in contact against the first roller, and a retaining member a... | 06/24/2008 |
| 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 |
| 7383009 | 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 fixing roller 30, and which is supported to rotate ... | 06/03/2008 |
| 7382995 | Fixing apparatus, image forming apparatus and fixing apparatus heating method A fixing apparatus for fixing an unfixed image on a recording material includes: a heating member having a conductive layer, that is rotatably provided; a pressure member that is rotatably provided and that is brought into press-contact with the heating member, ther... | 06/03/2008 |
| 7371995 | Fixing device and image forming apparatus A fixing device includes: a fixing roller; a center temperature detection unit including a protective member, the center temperature detection unit contacts the fixing roller in an axial center of the fixing roller and detects a temperature of the center section; an... | 05/13/2008 |
| 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 |
