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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 heat...
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...
8744290 Apparatus and method of protecting fuser unit and image forming apparatus including the same  
An apparatus and method of protecting a fuser unit and an image forming apparatus having the same include a fuser drive motor portion to drive the fuser unit, a power detecting portion to detect...
8744291 Image-forming apparatus and method for controlling image-forming apparatus  
An image-forming apparatus includes a power-source part, a fixing device, a power-source switch, a memory part, a fixing motor, and a drive-transmitting part. The power-source part generates and...
8737861 Fixing device and image forming apparatus  
A fixing device includes a fixing rotation body heating and fixing an unfixed image onto a recording medium; a pressing rotation body pressing the recording medium to the fixing rotation body; and...
8737892 Image forming apparatus  
The invention provides an image forming apparatus, having: an apparatus main body; a fixing unit fixing an image onto a recording material at a fixing nip portion, the fixing unit including a...
8729733 Power control apparatus, image forming apparatus, and power control program product  
A reception unit sequentially receives input of voltage values indicating an AC input voltage from an AC power supply. A ROM stores a power control table in which a power control parameter...
8699896 Failure predictor, fixing device, image forming apparatus, and failure prediction system  
A failure predictor for predicting failure of a fixing device including a first characteristics value extractor to extract a first characteristics value representing a time interval between each...
8682191 Image forming apparatus with controllable fixing pressure and computer-readable medium stored with image forming program  
There is provided an image forming apparatus including: a forming section that, based on image forming data including image data of an image to be formed on paper and paper data relating to the...
8676077 Optical fixing apparatus, image forming apparatus, and optical fixing method  
An optical fixing apparatus includes a transport unit that transports a recording medium in a first direction in a first fixing process and a second fixing process subsequent thereto and transports...
8676068 Image forming apparatus and fixing unit control method thereof  
An image forming apparatus including: an image forming unit which forms an image; a fixing unit which fixes the image transferred to a printing medium; a power supply which supplies operation power...
8666268 Fixing device, image forming apparatus and heat generating rotational body  
The present invention provides a fixing device that can interrupt power supply to the resistive heat layer more reliably than the conventional technology, for example, at occurrence of abnormality....
8660445 Fuser unit  
A fuser unit includes: a cylindrical member; a heat generator; a nip member; a backup member, which configures a nip part between the cylindrical member and the backup member with the cylindrical...
8660444 Image forming apparatus with operation stopping control upon temperature sensing in fixing device  
An image forming apparatus includes a heat source, a thermal fixing member, a temperature sensing unit, a temperature change determining unit and a halting unit. The heat source generates heat. The...
8659809 Image forming apparatus provided with a color misregistration correction processing unit  
An image forming apparatus having a temperature detection unit that detects a current interior temperature based on a detection signal from a temperature sensor. A temperature change detection unit...
8655204 Induction heating device, induction heating fixing device, and image forming apparatus  
An induction heating device includes a resonance circuit including an exciting coil and a resonance capacitor; a switching unit that turns on and off a high-frequency current flowing through the...
8639131 Belt drive apparatus and image forming apparatus  
A belt drive apparatus, including, an endless belt to be laid across in a tensioned condition between supporting rollers and to travel being in pressure contact with or being separated from a body...
8626007 Heating device having high degree of freedom in design, and image forming apparatus  
A heating device and an image forming apparatus which make it possible to improve the degree of freedom in design to enhance the accuracy of detecting the state of a to-be-heated member, and easily...
8626006 Heat-responsive switch, fixing device, and image forming apparatus  
A heat-responsive switch includes a case member, a deformation member deformed from a shape concave to an inside of the case member to a convex shape in response to a temperature variation, a first...
8615175 Fixing unit and image forming apparatus including same  
A fixing unit removably installable in an image forming apparatus includes an endless fixing member; a metal member disposed in proximity to an inner surface of the fixing member; a nip formation...
8610315 Circuit and heating apparatus that completely cuts power to a supply circuit due to blowout of a fuse on a single supply line  
This invention allows completely cutting power supply to a circuit that has become dysfunctional because of blowout of a fuse. To accomplish this, a circuit includes a fuse connected to one supply...
8600285 Image forming apparatus  
An image forming apparatus includes an image forming unit configured to form an image on a sheet, a fixing unit configured to fix the image formed by the image forming unit on the sheet, a cooling...
8600253 Image forming apparatus, method of controlling fixing device, and device and method for detecting abnormality of the fixing device  
An image forming apparatus which is capable of detecting occurrence of an abnormality that a fixing member which is actually in an unpressurized state is detected to be in a pressurized state, and...
8594523 Image forming apparatus with a temperature sensor disposed apart from a heating member  
In an image forming apparatus, a temperature of a heating member heated by a heat source to fix a developer image on a recording sheet is detected by a temperature sensor disposed apart from the...
8588629 Thermally-actuated switch, fixing device, and image forming apparatus  
A thermally-actuated switch includes a movable member that is provided between a second electrode and a displacement member so as to be movable in a first direction, is pushed at one end by the...
8588628 Fixing device and image forming apparatus  
A fixing device includes a fixing member, an induction heating unit, a pressing member, and a damage detection unit. The fixing member heats a toner image on a recording medium to fix the toner...
8577241 Image forming apparatus and control method thereof that separate roller bodies after a predetermined time elapses after being in a power save mode  
An image forming apparatus which is capable of reducing the number of times a second member is separated from a first member upon entry into power-save mode, thereby minimizing failures of a...
8577232 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
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...
8526836 Fixing device, image forming apparatus, and temperature control method for fixing device  
First, a first temperature difference and a second temperature difference are calculated. The first temperature difference is a difference between (a) a first detected temperature that is a current...
8521048 Printing apparatus, printing apparatus control method, and storage medium  
An image forming apparatus having an image forming unit and a fixing unit. The image forming unit may form an image on a sheet based on image data by using a recording agent. The fixing unit may...
8515297 Serial communication apparatus and image forming apparatus including the same  
An image forming apparatus including a fixing device using an induction heating method determines a driving frequency for a switching element configured to drive an induction coil, according to a...
8502123 Apparatus and method to protect half or full bridge circuit including first switching unit and second switching unit in image forming apparatus performing induction heating  
An apparatus to protect a half or full bridge circuit including a first switching unit and a second switching unit in an image forming apparatus performing induction heating, the apparatus...
8503894 Fixing apparatus, printing apparatus, and computer readable medium storing a program for detecting twine  
The present invention provides a fixing apparatus including: a pair of rotating bodies that transports a recording medium on which an image is formed by using an image forming material, by...
8494389 Fixing apparatus comprising circuit for suppressing heat generation according to rotation detection signal  
A fixing apparatus that conveys a printing medium to a fixing nip portion formed by rotating members, and fixes an image onto the printing medium by heat from heating elements. The fixing apparatus...
8494381 Heating unit and its malfunction determining method, image fixing device, and image forming apparatus  
Disclosed are a heating unit and its malfunction determining method, an image fixing device including the heating unit, and an image forming apparatus including the image fixing device. The method...
8488981 Fixing device and image forming apparatus using the same  
A fixing device includes a fixing member, a pressure member, and a damage detecting unit. The fixing member includes a heat-insulating elastic layer, to which a conductive thin-film layer is...
8457505 Image forming apparatus with heater control and error detection, and control method for the same  
An image forming apparatus according to the present invention includes: a fixing part having a heater; a control part controlling ON/OFF of power distribution to the heater; a power source part...
8451466 Image forming apparatus  
A disclosed image forming apparatus includes an image transferring unit configured to transfer an image to a recording medium; a fusing unit provided downstream of the image transferring unit and...
8452219 Electrophotographic printer  
An electrophotographic printer is configured such that an infrared heater is installed at a position between a plurality of electrophotographic print units installed in of the flow direction of a...
8422902 Image forming apparatus that uses fixing member temperature or thickness of recording medium to detect when to halt the rotation drive of a fixing member drive unit  
An image forming apparatus forming an image by fixing a developer on a recording medium with heat includes a fixing member, a pressure member, a drive unit, a heat unit, a temperature detection...
8417137 Fixing device and image forming apparatus employing the fixing device  
A fixing device includes a rotary fixing member, a counter member to contact the rotary fixing member, a first heater to heat the rotary fixing member, a driving unit to rotate the rotary fixing...
8391761 Fixing device and image forming apparatus including fixing device  
A fixing device of belt fixing type is provided. A heat generating member that is a heat generating source for heating a fixing belt has a heat generating layer composed of a resistance heat...
8385756 Failure diagnosis device, failure diagnosis method, image forming device, and recording medium  
A first feature quantity computing unit that computes a first feature quantity representing an average of a plurality of driving loads recorded by a driving load of a fixing section recording unit...
8385755 Fixing device having a unit to prevent overheating  
A fixing device and an image forming apparatus having the same, and a method of operating the fixing device, the fixing device being provided with a power interruption unit to prevent overheating...
Matches 1 - 50 out of 282 1 2 3 4 5 6 >