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| Number | Title | Issue Date |
| 8185008 | Fixing device and image forming apparatus with a temperature detector A fixing device includes a heater, first and second pressure-applying members, a belt support member, a fixing belt, a contact member and a temperature detector. The fixing belt is entrained about the heater, the first pressure-applying member and the belt support m... | 05/22/2012 |
| 8175481 | Image-forming device for suppressing internal temperature rise when sheet-feed error occurs An image-forming device, such as a laser printer, includes a sheet-feed section, an image-forming section, a thermal fixing section and a control section. The sheet-feed section is configured to feed a recording sheet to a conveyance path. The image-forming section ... | 05/08/2012 |
| 8175482 | Printer including a fuser assembly with backup member temperature sensor A printer is provided comprising substrate transport apparatus for moving substrates along a substrate path through the printer; a fuser assembly comprising a heat transfer member including a belt and a heater to heat the belt, a backup member adapted to engage the ... | 05/08/2012 |
| 8170436 | Apparatuses useful for printing and methods of controlling a temperature of a surface in apparatuses useful for printing Apparatuses useful for printing and methods of controlling a temperature of a surface in an apparatus useful for printing are disclosed. An exemplary embodiment of the apparatuses includes a first roll including a first outer surface and at least one first heating e... | 05/01/2012 |
| 8165487 | Safety device and fixing device A fixing device has a fixing roller, a pressure roller, an electromagnetic induction heating section, a heat pipe, a temperature sensor and a control section. The fixing roller is heated by the electromagnetic induction heating section. The heat pipe is in contact w... | 04/24/2012 |
| 8165486 | Image forming apparatus having temperature detection member and temperature correction unit An image forming apparatus is provided. The image forming apparatus includes an apparatus main unit; a detected unit that is placed in the apparatus main unit; a temperature detection member that is provided out of contact with the detected unit in the apparatus mai... | 04/24/2012 |
| 8165485 | Fixing apparatus having heating element and image forming apparatus having the fixing element A fixing apparatus includes a heating element with an NTC characteristic in which an electric resistance value decreases as a temperature increases, which extends (i) in a direction parallel to a recording paper and (ii) in a width direction perpendicular to a carry... | 04/24/2012 |
| 8150288 | Apparatus and method of controlling power supply to heating roller and phase control circuit corresponding to the apparatus and method A method and an apparatus to control power supplied to a heating roller and a phase control circuit corresponding to the method or the apparatus. The phase control circuit may include an examination unit to compare levels of a sine wave having a predetermined first ... | 04/03/2012 |
| 8139970 | Image fixing control system and method to increase quality of fixed image An image fixing control system and method are provided comprising a power supply, a power switching unit, a heating roller, in which a temperature detector detects a temperature of the heating roller, and a controller detects a temperature variation slope of the hea... | 03/20/2012 |
| 8135298 | Image forming apparatus and image forming method for controlling image formation based on a temperature of a fusing rotating body An image forming apparatus, such as a printer, includes an image forming unit forming a toner image on an image carrier, a transfer unit for transferring the toner image onto a recording medium, a pair of a fusing rotating body and a pressure rotating body, a fusing... | 03/13/2012 |
| 8135297 | Image forming apparatus In order to simultaneously prevent both curl generation and fixation performance deterioration upon both-surface image formation of a recording medium P, a fixation temperature control means which subjects a transporting-direction trailing end region of a first surf... | 03/13/2012 |
| 8131174 | Fixing device, image forming apparatus, fixing method and image forming method The fixing device is provided with: a fixing member that has a rotating member which rotates and a heat source which heats the rotating member; a pressure member that is driven to rotate while pressing the fixing member, and that forms a nip portion where a recordin... | 03/06/2012 |
| 8126347 | Apparatus and method for fuser and pressure assembly temperature control An apparatus (100) and method (700) that can control fuser temperature is disclosed. The apparatus can include an image fuser member (110) rotatably supported in the apparatus, where the image fuser member can be configured to fuse an image on m... | 02/28/2012 |
| 8112009 | Electrophotographic apparatus having fuser temperature control and corresponding methods Disclosed are a method of forming images on media in an electrophotographic apparatus, and corresponding electrophotographic apparatus. The method includes measuring a temperature of the media with a sensor after the toner particles have been fused to the media, and... | 02/07/2012 |
| 8112010 | Energization control device and image forming apparatus A heating unit heated upon receiving power supplied from an AC power supply, a temperature detecting unit detecting the temperature of the heating unit, a memory storing power energization pattern in which power energization and non-power energization are performed ... | 02/07/2012 |
| 8107843 | Digital fuser using micro hotplate technology In accordance with the invention, there are printing apparatuses and methods of marking and forming an image. The printing apparatus can include one or more digital heating elements disposed in a fuser subsystem, the digital heating element can include an array of h... | 01/31/2012 |
| 8103183 | Heater control with varying control cycle and lighting pattern A heater controlling apparatus for controlling supply of alternating current power to at least one heater that heats a heating object includes a detection unit configured to detect a temperature of the heating object, a determining unit configured to determine a pro... | 01/24/2012 |
| 8099008 | Image heating apparatus with control means for controlling power to the coil that generates magnetic flux An image heating apparatus includes a coil for generating a magnetic flux by a current flowing therethrough; an image heating member having an electroconductive layer in which an eddy current is produced by the magnetic flux by which heat is generated, the image hea... | 01/17/2012 |
| 8095030 | Fixing device and image forming apparatus using the same A fixing device including a fixing member to melt a toner so as to fix a toner image onto a recording medium, a temperature sensor to detect a temperature of the fixing member, and a heater to heat the fixing member based on the temperature detected by the temperatu... | 01/10/2012 |
| 8095029 | Controlling fixing device temperature of an image forming apparatus based on target temperature An image forming apparatus which is capable of accurately detecting the temperature of a fixing roller by a simple circuit configuration without causing a scratch on the surface of the fixing roller. A detection sensor is disposed in a state not in contact with a he... | 01/10/2012 |
| 8081893 | Electrophotographic image forming apparatus with improved temperature control An image forming apparatus is provided that has a first pressurizing member, a heating member, and a belt member laid across the heating member and the first pressurizing member in a tensioned state, the belt member being heated by the heating member. The apparatus ... | 12/20/2011 |
| 8078074 | Image forming apparatus and image forming method An image forming apparatus has: an intermediate transfer body which carries an image; a transfer mechanism which transfers the image carried on the intermediate transfer body, onto a transfer surface of a recording medium fixed to a surface of a rotating body; and a... | 12/13/2011 |
| 8078073 | Temperature control of a fixing apparatus using an induction heating system In a fixing apparatus of an embodiment of the invention, a heat roller forwardly and reversely rotated by a drive motor capable of forwardly and reversely rotating is heated by an induction heating coil also when it is reversely rotated. Further, the roller control ... | 12/13/2011 |
| 8068758 | Belt conveyance apparatus and image heating apparatus The image heating apparatus has a plurality of heat generators which are capable of forming a plurality of heat generating distributions in the longitudinal direction for supplying heat to a heating member. Unevenness in temperature is decreased by changing the heat... | 11/29/2011 |
| 8059983 | Phase detecting device, phase control device including the phase detecting device, and fuser control device including the phase control device A phase detecting device includes a power input unit that receives an AC voltage; a phase detector that detects zero-crossing points of the AC voltage, and outputs a phase detecting signal when the zero-crossing points of the AC voltage are detected; and a power swi... | 11/15/2011 |
| 8050583 | Fixing device having heaters controlled based on temperatures detected by first and second temperature detectors A fixing device, an image forming apparatus using the fixing device, and a temperature control method therefor. The fixing device includes a fixing roller, a heat roller including first and second heat sources, a fixing belt, a pressure roller including a pressure h... | 11/01/2011 |
| 8041245 | Apparatuses useful in printing and methods of controlling the temperature of surfaces in apparatuses useful in printing Apparatuses useful in printing and methods of controlling the temperature of surfaces in apparatuses useful in printing are provided. An exemplary embodiment of the apparatuses useful in printing includes a belt including a first surface; at least one heat source fo... | 10/18/2011 |
| 8036557 | Fixing device, image forming apparatus, and heating control method for fixing device A fixing device includes a heat roller having a degaussing alloy material, an induction heating member for exciting the heat roller, an inverter circuit for giving power at a predetermined frequency to the induction heating member, and a control unit, and when drivi... | 10/11/2011 |
| 8036559 | Fixing unit and fixing temperature control method A fixing unit that heat-fixes the toner image onto the sheet, has an information acquisition section that acquires information concerning a factor causing the input voltage which is supplied to a heater for heating the heating roller to vary; a temperature setting s... | 10/11/2011 |
| 8036556 | Fixing device having an electric power control system to an induction heating coil for image forming apparatus A fixing apparatus according to an embodiment of the present invention controls, using a CPU and a temperature comparator, an inverter circuit that supplies electric power to an induction heating coil and performs temperature control for a heat roller. The CPU adjus... | 10/11/2011 |
| 8036558 | Heater controller and image forming apparatus A heater controller is provided. The heater controller includes a switching unit which switches a conduction state of a heater with an AC power source between ON and OFF at a timing at which an AC power voltage becomes zero; and a control unit which controls the swi... | 10/11/2011 |
| 8032047 | Fixing device and image forming apparatus A fixing device includes a non-contacting thermistor (54) disposed in the vicinity of the surface of a heat roller (21) and an upper cover temperature thermistor (60) for detecting the temperature of a pressure roller (22). The calculated... | 10/04/2011 |
| 8032045 | Fusing device heated by induced current for instantly controlling power A device for fusing and fixing a transferred toner of a predetermined image onto a print paper is provided. In particular, a fusing device which can instantly control induced current provided to a fusing unit in an image printing apparatus which heats the fusing uni... | 10/04/2011 |
| 8032046 | Image forming device and image forming method wherein a standby fixing temperature is higher than a low-temperature fixing temperature To control a temperature of a rotating member for fixing an image during standby, an image forming device can suppress overshoot of the temperature of the rotating member occurred when a fixing state is switched to a standby state. Determining the standby temperatur... | 10/04/2011 |
| 8027607 | Image forming apparatus The image forming apparatus, in the case where image forming is performed on a recording medium whose size covers a position of a second temperature detection element perpendicularly disposed to the recording medium conveyance direction, when the detected temperatur... | 09/27/2011 |
| 8023851 | Method and printer assembly for consistent power control in fuser assembly of electrophotographic printer A method for setting a heater element of a fuser assembly to a consistent starting condition to achieve consistency in heating power measurement is provided. The heater element is heated to a first predefined temperature when the temperature of the heater element is... | 09/20/2011 |
| 8019247 | Fusing device and image forming apparatus which turns on an edge heater A disclosed fusing device includes a fusing part; a pressing part rotatably pressed against the fusing part to form a fusing nip for fusing a toner image onto a sheet; a capacitor; a center heater for heating a center portion of the fusing part; an edge heater for h... | 09/13/2011 |
| 8010007 | Image forming apparatus including a plurality of heating units and method of controlling the same A control unit controls supply of power to a plurality of heating units at predetermined control period T1 that is set by a first unit. A second unit sets power supply time t1 for a first heating unit having largest power consumption within the control... | 08/30/2011 |
| 8005389 | Fixing device and temperature control method therefor A fixing device includes a fixing belt, exercitation coils for induction-heating the fixing belt, power supplies that supply high-frequency power to the excitation coils, an output power detecting circuit that detects output electric energy of the power supplies, a ... | 08/23/2011 |
| 8000623 | Fixing apparatus and image forming apparatus A fixing apparatus of the present invention includes a heating roller 2 that is a cylindrical member having a center axis, a pressurizing roller 3 that exerts pressure on the heating roller 2, and a temperature detecting element 6 that de... | 08/16/2011 |
