| Patent Number |
Title Of Patent |
Date Issued |
| 7603069 |
Fixing apparatus and image forming apparatus provided therewith |
October 13, 2009 |
| In a fixing apparatus and an image forming apparatus of the present invention, an external heating section is provided that includes: an external heating belt; two heat rollers suspending the external heating belt and pressed against a fixing roller via the external heating belt; and |
| 7599653 |
Image forming apparatus |
October 6, 2009 |
| An image forming apparatus capable of applying an adequate amount of fixing fluid to an unfixed toner image and producing high-quality images having high resolution and high image density with stability for a longer period of time while protecting the interior thereof against fixing flui |
| 7570909 |
Fixing apparatus and image forming apparatus including the same |
August 4, 2009 |
| In a fixing apparatus including a regulating member which regulates the position of an external heating belt in a rotation axis direction, the external heating belt includes a base material made of polyimide having a tensile strength of 300 MPa or more and a thickness of 50 .mu.m to 200 |
| 7561816 |
Image heating apparatus and image forming apparatus including synchronization of magnetic flux g |
July 14, 2009 |
| A fixing unit is provided with a fixing belt that heats recording paper that bears and moves a toner image, an exciting coil that generates magnetic flux in the fixing belt and causes the fixing belt to produce heat by electromagnetic induction, and a heat production adjustment secti |
| 7546080 |
Image forming apparatus |
June 9, 2009 |
| There is provided an image forming apparatus involving wet fixing that causes no bleeding and coagulation of toner and eventually no disturbance of toner image as a result of application of a fixing fluid, generates no curling or wrinkles in a recording medium, and can fix toner with lar |
| 7460823 |
Image forming apparatus and fixer fluid applying roller |
December 2, 2008 |
| An image forming apparatus is provided in which a toner image is fixed onto a recording medium with use of a fixer fluid in liquid form without causing generation of curls and wrinkles in the recording medium, the amount of the fixer fluid to be used can be reduced, even a multi-color |
| 7427729 |
Image heating device and image forming device |
September 23, 2008 |
| An image heating apparatus is provided that enables the entire width of a heat-producing medium to be heated uniformly and an excessive rise in temperature to be prevented, without making the configuration complex. In a fixing unit 19 in which this apparatus is applied, a fixing belt 112 |
| 7391983 |
Method and apparatus for controlling image forming operation of an image forming apparatus |
June 24, 2008 |
| The present invention relates to an image forming apparatus that enables the occurrence of print defects due to a first print start time delay to be eliminated without using a temperature sensor that has a small thermal time constant. When the temperature of a fixing belt serving as an i |
| 7079800 |
Image heating device |
July 18, 2006 |
| An image heating device according to an embodiment of the present invention includes a heat generator that has an outer surface and that generates heat by induction heating and a heater positioned close to the outer surface of the heat generator, the heater being configured to heat t |
| 7062188 |
Image heating device, image forming apparatus, image copying machine, and method for controlling |
June 13, 2006 |
| An image heating device is operational to estimate a temperature of a pressure roller so as to determine a set temperature for a roller belt in a subsequent image heating period. |
| 6968137 |
Image heating device, image forming apparatus, image copying machine, and method for controlling |
November 22, 2005 |
| An image heating device is provided with reduced cost, by which a difference in glossiness among printed images on recording media is eliminated, and the wrapping of a belt and the like at a high temperature is prevented. In the image heating device, a controller estimates a temperat |
| 6950618 |
Image forming apparatus having a removable fixing device |
September 27, 2005 |
| In a fixing unit 230, a medium introducing port 250 is provided near a gripping part 230a of a housing 230, and a sheet material 90 to be subjected to a fixing process is guided to the medium introducing port. A shutter 260 is provided slanted at a given angle with respect to a gripp |
| 6934483 |
Image heating device, image forming apparatus, image copying machine, and method for controlling |
August 23, 2005 |
| A fixing device as an image heating device is provided, by which a difference in glossiness is not caused in a recording medium in the axial direction of a pressure roller. When a print request is issued during the end-processing sequence, an electric power applied to a magnetization coi |
| 6901235 |
Fixing device and image forming apparatus using the same |
May 31, 2005 |
| A fixing device is formed by using a heat generating roller having magnetism and electric conductive characteristics and a magnetizing coil opposed to the outer peripheral of the heat generating roller and generating heat on the heat generating roller by an electromagnetic induction. |
| 6888113 |
Heating device and fuser utilizing electromagnetic induction |
May 3, 2005 |
| A heating device utilizing electromagnetic induction is provided with an induction heating unit that is opposed to a heating member and causes the heating member to heat through electromagnetic induction. The induction heating unit has an exciting coil for generating a magnetic field and |
| 6849838 |
Heating device using electromagnetic induction and fuser |
February 1, 2005 |
| A short ring is provided outside a support frame. In the short ring, eddy current is generated in such a direction as to cancel apart of a magnetic flux developed from the exciting coil when it is fed with current, which the part of the magnetic flux leaks to outside. When the eddy curre |
| 6810230 |
Electromagnetic induction image heating device and image forming apparatus |
October 26, 2004 |
| An excitation coil is arranged so as to be opposed to a rotatable heat generating roller of a conductive material, and on a rear side of the excitation coil, a core of a magnetic material is provided. The core is composed of a central core that is formed continuously in a rotation axis |
| 6795679 |
Image heating apparatus and heat generating rotary member for use in the same |
September 21, 2004 |
| An image heating apparatus and heat generating rotary member for use in the image heating apparatus has a fixing roller including a magnetic metal layer and a non-magnetic metal layer, and the non-magnetic metal layer is provided on the outer side of the magnetic metal layer and is thinn |
| 6725009 |
Image heating device and image forming apparatus using the same |
April 20, 2004 |
| An image heating device with a small thermal capacity that can be heated rapidly. The image heating device includes a fixing belt (20) having a heat resistance; a rotatable heat-generating roller (21), which is at least partially conductive and arranged in contact with an inner perip |
