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9042749 Fixing device including heating body and overtemperature protector, image forming apparatus and fixing device heating unit therewith  
A fixing device includes an endless belt that supplies heat to a medium, a heat diffusion member that stretches the endless belt, a heating body that heats the heat diffusion member, an...
9037008 Fixing device and image forming apparatus including same  
A fixing device including a fixing member, an opposing member, a plurality of heat sources, and a voltage detector. The opposing member is disposed opposite the fixing member to contact the fixing...
9037027 Image forming apparatus and method of forming an image  
An image forming apparatus includes: a fixing member; a moving section that moves the fixing member in a sheet width direction; a temperature detection section disposed at a position corresponding...
9037025 Fixing device, and image forming apparatus with same  
Provided is a fixing device including a transparent cylindrical body that is formed in a cylindrical shape to be rotatable, an opposing member that is arranged to oppose the transparent...
9031443 Image forming apparatus  
An image forming apparatus includes an image forming station for forming an unfixed image on a recording material; a fixing portion for heating and fixing an unfixed image formed on the recording...
9031439 Fixing device and image forming device  
According to an embodiment, provided is a fixing device that includes: a rotatable fixing member that heats a recording medium on a side carrying an unfixed image; a rotatable pressing member that...
9031427 Image forming apparatus and method of controlling same  
An image forming apparatus includes: an image formation portion; a fixing portion that includes an exciting coil for inductively heating member and a temperature detection member: a main control...
9025974 Fixing device and image formation apparatus  
A fixing device for thermally fixing an unfixed image on a recording sheet, comprising: a heating rotor including a cylindrical resistance heating layer, and fixing an unfixed image on a recording...
9002220 Fixing device and image formation apparatus  
A fixing device for fixing an unfixed toner image on a recording sheet by passing the recording sheet through a fixing nip and applying heat and pressure to the recording sheet, the fixing device...
8989607 Thermal fixing device and image forming apparatus including same which detects the speed of a belt on the outer surface of a fixing member  
A thermal fixing device includes a fixing member, a flexible endless belt, a flexible endless belt, a rotary pressure member, a heating unit, and a rotation detector. The flexible endless belt is...
8983313 Image heating device  
An image heating device includes a belt, a wire stretched from one widthwise end to the other widthwise end of the belt near a peripheral surface of the belt, a moving member movably fixed to one...
8977155 Image forming apparatus  
The image forming apparatus can be used in areas having different power supply voltages, in which a failure of the apparatus can be detected so that reliability of the apparatus is improved. The...
8971735 Image heating apparatus configured to detect breakages of lateral end portions of an endless belt  
A belt failure detecting mechanism includes a rocking arm connected to a ground contact portion and an urging member configured to urge one end of the rocking arm against an inner surface of an...
8965225 Image-forming apparatus setting upper limit of electric power based on detection result of sheet detector  
In an image-forming apparatus, a sheet detector detects the recording sheet conveyed from the sheet accommodating unit by the pickup roller. A fixing unit includes a heating member configured to...
8965224 Fixing unit controlling apparatus and image forming apparatus including the same  
A fixing unit controlling apparatus that includes a switching unit of a power supplier to supply power to a fixing unit according to a power supply controlling signal to control a temperature of...
8948624 Fixing device and image forming apparatus provided with fixing device  
A fixing device includes a fixing roller, a single heating member that heats the fixing roller, a pressure roller, a first temperature detecting element that detects the temperature of the contact...
8948625 Image forming apparatus for detecting abnormality of a fixing device  
Image forming apparatus including: fixing device thermally fixing unfixed image on recording sheet by causing recording sheet to pass through nip formed by pressing member pressing against outer...
8934792 Status detection device, image forming apparatus including the same, and method for controlling status detection device  
A status detection device includes a heater, a first power line for supplying power to one end of the heater, a second power line for supplying power to the other end of the heater, a switch...
8934791 Fixing device and image forming apparatus including the fixing device  
A fixing device includes a heat rotational member that fixes a toner, a pressure rotational member that presses the heat rotational member, a magnetic-flux generation unit, a detector, and a...
8929752 Fixing device and image forming apparatus using same  
A fixing device for fixing an unfixed toner image on a recording medium includes a rotatable fixing member heated by a heater to contact the recording medium bearing the unfixed toner image while...
8929753 Heating control device, heating control method, and image forming apparatus  
A heating control device which is capable of detecting an abnormality of an object to be heated accurately. A power-supply unit applies the electric power to the electromagnetic induction heating...
8909075 Image forming apparatus and fixing device having paper dust amount obtaining unit  
A fixing device for performing a thermal fixing for fixing an unfixed image onto a recording sheet by passing the recording sheet through a fixing nip formed by a fixing rotator and a pressing...
8909074 Fixing device and image forming apparatus including same  
A fixing device for fixing a toner image on a recording medium includes a fixing roller, a pressing roller, and at least one of a sheet guide, a sheet separation plate, and an electric component...
8909114 Image heating apparatus  
An image heating apparatus includes a rotatable image heating member for heating an image on a recording material, a magnetic flux generator for generating magnetic flux for heating the image...
8903293 Fuser device and image forming apparatus provided with same  
A fuser device includes a first motor for rotatably driving one of a heating member and a pressure-applying member, a second motor rotating either in a forward direction or a reverse direction in...
8896881 Imaging forming system comprised of image forming apparatuses arranged in series, and which prevents an excessive rise in either of an inside temperature or a fixing section temperature of a downstream image forming apparatus  
An image forming system includes a first image forming apparatus and a second image forming apparatus, the first image forming apparatus including: a first image forming section which performs...
8886064 Fixing device, heater control method, and image forming apparatus incorporating same  
A fixing device includes a rotary, endless fuser belt, a heater, a thermometer, and a controller. The fuser belt is subjected to heating, on which the recording medium is conveyed to fuse the...
8872076 Heating device capable of accurately determining change in state, and image forming apparatus  
A heating device capable of accurately determining a change in the state of a to-be-heated member, caused in a narrow area. An induction heating coil generates magnetic flux by flow of electric...
8861995 Image forming apparatus and control method for confirming a paper rolling state of a fusing device  
An image forming apparatus and a control method thereof in which occurrence or removal of a paper rolling state in a fusing device is judged based on temperature of the fusing device. The...
8855506 Image forming apparatus  
An image forming apparatus includes a fixing device. The fixing device includes a rotatable endless fixing member, a nip forming member arranged inside the fixing member, a pressing member in...
8855509 Heating apparatus and voltage detection apparatus  
A voltage detection apparatus is configured to detect a voltage value applied to a first or second current path of a heater. The voltage detection apparatus detects a first period during which the...
8855510 Image forming apparatus and fixing unit control method thereof  
Disclosed are an image forming apparatus and a fixing unit control method thereof, the image forming apparatus including an image forming unit, a fixing unit, a power supply to supply operating...
8843004 Image forming apparatus  
An area calculating unit calculates an image area of a toner image formed on a sheet recording member. A behavior detecting unit detects behavior of the recording member fed out of a conveying nip...
8837958 Fuser including replacement detecting function  
According to one embodiment, a fuser includes a fixing rotating section including a heat generating section, an opposed section configured to form a nip between the opposed section and the fixing...
8824904 Fixing device and image forming apparatus  
A fixing device includes a temperature measuring unit, configured to measure the temperature in regions that extend partially along the outer surface of a heating rotating body, which includes a...
8818254 Image heating apparatus  
An image heating apparatus includes an endless belt having a heat generation layer; a driving rotatable member forming a nip; a pressing pad for pressing the endless belt toward the driving...
8818214 Heating apparatus and image forming apparatus  
The heating apparatus includes a first detection part which detects whether or not the power supplied to the heat generation member is in an overpower state by detecting a positive phase of a half...
8811837 Fixing device and image forming apparatus including same  
A fixing device includes a substantially cylindrical metal member, a heater, an endless, flexible fixing member, a rotary pressing member, a stationary member, a first temperature detector, and a...
8809752 Booster circuit for enhanced induction heating unit, power-supply unit, and image forming apparatus using the same  
A boosting circuit includes a switch element, a first coil, a second coil, and a capacitor. The switch element generates a first alternating current voltage having a first frequency from a direct...
8811838 Fixing device and image forming apparatus incorporating same  
A fixing device includes a protected object disposed opposite an outer circumferential surface of a pressing rotary body and upstream from a fixing nip formed between the pressing rotary body and...
8805228 Printing apparatus, printing apparatus control method, and storage medium  
An image forming apparatus includes a reading unit, a receiving unit, an image forming unit, a fixing unit, and a control unit. The reading unit generates generated image data indicating the...
8792794 Fixing device and image forming apparatus having jam detection unit  
A fixing device includes a fixing unit with a nip, two rollers, a guide member, a detection unit and an urging unit. The detection unit is disposed substantially parallel to the guide member...
8787780 Image forming apparatus having a fixing unit comprising a current detection unit  
An apparatus is capable of switching between a mode in which a first resistance heating element and a second resistance heating element are connected in series and a mode in which they are...
8781344 Image forming apparatus, image forming method, and fixing apparatus  
According to one embodiment, an image forming apparatus includes an image forming section configured to form a toner image on a medium, a fixing device including a heating member configured to...
8773684 Image forming apparatus and print control method  
An image forming apparatus according to the present disclosure includes: a printing unit configured to perform printing on a recording medium; a multiple-sheet-feed detecting unit configured to...
8768186 Apparatus, system, and method of predicting failure of image forming apparatus  
An apparatus, system, and method of predicting failure of a fixing device of an image forming apparatus are provided. Based on a plurality of sheet transfer time values of the fixing device, a...
8761619 Image forming device and failure control system for the same  
An image forming device includes a plurality of power consumption parts that operate by power supply from a power source. The image forming device includes a failure detection part that detects...
8755733 Fixing device, fixing method, image forming apparatus, and image forming method  
A fixing device in an image forming apparatus includes a conveyance member to convey a recording medium at a fixing nip where an image carried on the recording medium is fixed onto it; a plurality...
8750774 Fixing device and image forming apparatus including the same  
A magnetic core includes a plurality of first core portions arranged to surround a coil in a direction perpendicular to a conveying direction of a recording medium, and a second core portions...
8744289 Image forming apparatus  
The present invention provides a low-cost and safe image forming apparatus that has a first state in which first and second resistance heating bodies of a heater are connected in series, a second...
Matches 1 - 50 out of 324 1 2 3 4 5 6 7 >