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| Number | Title | Issue Date |
| 7199335 | Heat fusing apparatus, method of controlling same and image forming apparatus Disclosed is a heat fusing apparatus for thermally fusing toner that has been transferred to a printing medium from a toner image formed on an image bearing member using an electrophotographic process. Temperature is detected at the surface of a heating element or i... | 04/03/2007 |
| 7196286 | Heating apparatus, auxiliary power supply apparatus, auxiliary power supply system, fixation apparatus, and moving picture formation 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... | 03/27/2007 |
| 7196296 | Image forming apparatus and fixing apparatus An image forming apparatus capable of realizing low power consumption of a fixing means is provided. The image forming apparatus includes an image forming means for forming an unfixed image t on a recording material P, and a fixing means 10 for heat-fixing th... | 03/27/2007 |
| 7197253 | Image forming apparatus including two CPUs to control a fixing device An image forming apparatus, is provided with a fixing device including a heat source to receive power supply and to generate heat, and a temperature sensor to detect a temperature of the heat source; a control section to conduct a heat source temperature control and... | 03/27/2007 |
| 7197270 | Induction heating apparatus with rotatable magnetic flux suppressing member A heating apparatus of an electromagnetic inductive heat generating type has a coil for generating a magnetic flux, a roller member for generating heat by the magnetic flux from the coil, and heating a material to be heated, and a magnetic flux shield member for shi... | 03/27/2007 |
| 7193180 | Resistive heater comprising first and second resistive traces, a fuser subassembly including such a resistive heater and a universal heating apparatus including first and second resistive traces A resistive heater adapted for heating a fuser belt is provided. The heater comprises a substrate, a first resistive trace formed over the substrate, and a second resistive trace formed so as to at least partially overlap the first resistive trace. ... | 03/20/2007 |
| 7193181 | Image heating apparatus and heater used therefor The image heating apparatus for heating an image formed on a recording material includes a heater having a substrate and first and second heat generating resistors, most of the region of said first heat generating resistor having smaller resistance value per unit le... | 03/20/2007 |
| 7190914 | Image heating apparatus having heater for externally heating fixing roller The image heating apparatus for heating a toner image formed on a recording material, includes a rotatable member; heating device for heating an outer peripheral surface of the rotatable member, the heating device including a heater for forming a heating nip portion... | 03/13/2007 |
| 7190917 | Image forming apparatus with divided output of DC high voltage source An output of a DC high voltage source is supplied as a bias to a heat fixing apparatus. An output of the DC high voltage source is divided by resistors, and a divided output is supplied as a DC bias to a charging apparatus. A feedback circuit generates a feedback si... | 03/13/2007 |
| 7189949 | Power control system and method for regulating power provided to a heating device A circuit includes a switching device for controlling a power signal to be applied to a heating device. A control circuit is configured for comparing a temperature signal, indicative of the temperature of the heating device, to a temperature setpoint to generate a g... | 03/13/2007 |
| 7190915 | Image forming apparatus with time interval control of fixing unit and control method therefor An update value for updating a count value is changed in accordance with the time interval of activations of a fixing unit. Every time the fixing unit is activated, the count value is updated in accordance with the update value. The target temperature of the heater ... | 03/13/2007 |
| 7187881 | Image forming apparatus with heating unit control function An image forming apparatus having a heating unit control function in accordance with the present invention energizes one of a plurality of heating units designated by a sequence counter to be energized, halts energize of the heating unit if the time counter finishes... | 03/06/2007 |
| 7186956 | Fuser-controlling apparatus for generating a power synchronization signal and detecting power voltage A fuser-controlling apparatus for generating a power synchronization signal and detecting a power voltage. The fuser-controlling apparatus comprises a power synchronization signal generation circuit for outputting a power synchronization signal for synchronizing fus... | 03/06/2007 |
| 7186959 | Fixing apparatus A fixing apparatus an aspect of the present invention includes, a heating object which generates the heat by a magnetic flux produced from a coil which generates a predetermined magnetic flux by electromagnetic induction in accordance with a frequency of an input cu... | 03/06/2007 |
| 7187894 | Image forming apparatus having a heat belt There is provided an image forming apparatus having an image forming section for forming an unfixed image on a transfer medium and a fixing device for fixing the unfixed image by sandwiching and heating the transfer medium that holds the unfixed image, wherein, the ... | 03/06/2007 |
| 7187878 | Image forming apparatus and its control method In continuous printing operation which repeatedly sets a state in which when a preceding printing material passes through the nip area of a thermal fixing unit, a succeeding printing material has been supplied to an image forming unit and image forming operation has... | 03/06/2007 |
| 7185883 | Sheet treating apparatus and image forming apparatus A sheet treating apparatus including, a conveying device for conveying sheets, a sheet stack tray for stacking the sheets conveyed by the conveying device, a sensor detecting the sheets conveyed to the sheet stack tray, a pressure-contact conveying device for convey... | 03/06/2007 |
| 7187880 | Thermal fixing device and image forming apparatus using the same Disclosed is a thermal fixing device using at least two heaters for respectively heating center and end portions of a fixing member, in which after the driving of the two heaters is stopped, thermal fixing can be re-started quickly at proper temperatures for both th... | 03/06/2007 |
| 7187882 | Image fusing device with power control and image forming apparatus with same This invention is intended to control the amount of power to be supplied to a fusing heater below a maximum applicable current value. The engine controller supplies electricity to both of two heating bodies at the same fixed duty D1. At a phase angle al correspondin... | 03/06/2007 |
| 7187460 | Host control of printer ready Printer has a standby state in which the motor driving the laser scanning mirror is turned off immediately after a print job when another page is not ready. To increase operating speed, a signal to the printer starts a timer (Ready timer). When a page is printed, th... | 03/06/2007 |
| 7187883 | Image forming apparatus having fixing device with cooling device An image forming apparatus includes a fixing device for fixing developer on a recording medium; a heating device for heating the fixing device; a cooling device for cooling the fixing device; a temperature detecting device for detecting a temperature of the fixing d... | 03/06/2007 |
| 7184697 | Fixing apparatus having an induction heating control circuit A fixing apparatus according to an embodiment of the present invention has a plurality of coils which are independently controlled by an inverter circuit. These coils have shapes to make the difference between the frequencies of the flowing high-frequency current ou... | 02/27/2007 |
| 7184675 | Fixing temperature control method and image forming apparatus with detection of thickness of a print medium In an image forming apparatus which has a medium thickness detecting unit for detecting a thickness of print medium and forms an image by an electrophotographic process, the apparatus has a unit for detecting the thickness of print medium that is used after a predet... | 02/27/2007 |
| 7177560 | Method of warming fixing device, method of determining humidity value used in image formation apparatus, and image formation apparatus A method of warming a fixing device includes the steps of: providing a first fixing member and a second fixing member for fixing a toner image onto a sheet, a temperature increase rate of the first fixing member being higher than that of the second fixing member; wa... | 02/13/2007 |
| 7176952 | Fixing device and image forming apparatus A fixing device to be installed in an image forming apparatus includes a housing for defining the fixing device. In the housing, a heating member which heats a recording medium onto which a toner image is transferred to fix the image and a pressing member which is b... | 02/13/2007 |
| 7177579 | Image heating apparatus An image heating apparatus has a flexible rotatable member, a slidable member contacting an internal surface of the flexible rotatable member, a holder for holding the slidable member, and a pressure roller for applying a pressure to the flexible rotatable member th... | 02/13/2007 |
| 7177563 | Apparatus for fixing toner on transferred material The present invention relates to a temperature detection apparatus having a radiant temperature detection section including at least a ray emission portion which radiates at least rays and a ray detection portion which detects the rays, and capable of detecting temp... | 02/13/2007 |
| 7171149 | Fixing apparatus One of the amount of induction heating by a coil and that of induction heating by coils is increased/decreased relative to the other, and the ratio of the amount of the induction heating by the coil to that of the induction heating by the coils, at which the amount ... | 01/30/2007 |
| 7167660 | Standby temperature control to minimize fuser droop and overshoot A method of operating an electrophotographic printer and particularly the fuser thereof, includes preheating a heated roller of the fuser to a preheat temperature greater than the maximum target temperature for fusing, but less than the maximum temperature of a temp... | 01/23/2007 |
| 7164869 | Print delay based on media type A laser printer (10) having a fuser (220) to fix toner on sheets (214) in which the fuser element (225) heated by the power supply (121) of the printer is not capable of drawing enough power from the power supply to cause flicker. ... | 01/16/2007 |
| 7164870 | Method and apparatus for image forming capable of effectively performing an image fixing An image forming apparatus includes an image forming mechanism and an image fixing mechanism which includes a fixing member, a capacitor, a charger, a first heater, a second heater, a sensor, and a controller. The charger charges the capacitor with a first electric ... | 01/16/2007 |
| 7164871 | Image forming apparatus An image forming apparatus has a fixing unit that fixes a developer transferred onto a print medium. The apparatus includes a temperature detector and a movement detector. The temperature detector has a thermistor that detects a temperature of or near a fixing membe... | 01/16/2007 |
| 7162194 | Image heating apparatus The present invention provides an image heating apparatus including: a conveying roller for conveying the recording material; a heat supply member which supplies heat to the conveying roller, the heat supply member... | 01/09/2007 |
| 7162175 | Image forming apparatus including temperature sensor and method thereof A fixing device for an image forming apparatus includes a heating roller and a press roller. The press roller is pressed against the heating roller, and the heating roller and the press roller operate to fix an image on a document. The fixing device also includes a ... | 01/09/2007 |
| 7162187 | Image forming apparatus and image forming method In an image forming apparatus, a toner image is formed on a photosensitive element and a transfer roller, which carries a transfer medium, is pressed against a photosensitive element at a pressure of from 20.4 N/cm2 to 200 N/cm2. ... | 01/09/2007 |
| 7155136 | Image heating apparatus having heater for externally heating fixing roller The image heating apparatus for heating a toner image formed on a recording material, comprising, a rotatable member; heating device for heating an outer peripheral surface of the rotatable member, the heating device including a heater for forming a heating nip port... | 12/26/2006 |
| 7155154 | Fixing device and image forming device A fixing device including a fixing belt module is formed of a fixing roller having a heat source, one or more tension rollers at a fixing side and an endless fixing belt looped and stretched around the rollers to thereby rotate and a pressure belt module including a... | 12/26/2006 |
| 7154518 | Pre-heating system usable with image forming device based on behavior profile of user and a method thereof A pre-heating system usable with an image forming device based on a behavior profile of a user and a method thereof including sensing, according to time, program operation patterns of at least one user executing at least one application program of at least one termi... | 12/26/2006 |
| 7150954 | Image forming method and toner for use in the method An image forming method, comprising passing a toner image-bearing sheet through a nip defined between two rollers including a heater roller to fix the toner image on the sheet, wherein the toner image is formed from a toner comprising a binder resin, and a colorant,... | 12/19/2006 |
| 7151903 | Method and apparatus for reducing surface temperature variation of an externally-heated fusing roller Reducing variation in the surface temperature of an externally-heated fusing roller in an electrophotographic machine, the variation typically occurring during the beginning of a fusing run, by detecting the beginning of a fusing run and applying a modified fusing t... | 12/19/2006 |
