| Patent Number |
Title Of Patent |
Date Issued |
| 7486923 |
Heat generating roller, fixing equipment, and image forming apparatus |
February 3, 2009 |
| A heat generating roller, fixing equipment and an image forming apparatus in which warm-up time is shortened while preventing excessive temperature rise and good fixing performance is realized by preventing offset. The heat generating roller is formed principally by laying a high per |
| 7433639 |
Fixing device |
October 7, 2008 |
| In a fixing apparatus using an induction heating type of heating apparatus, there are provided an excitation apparatus that generates magnetic flux, an opposed core located opposite the excitation apparatus, a fixing belt that is induction-heated by the aforementioned magnetic flux, |
| 7424259 |
Fixing apparatus |
September 9, 2008 |
| A fixing apparatus that enables the calorific value of a heat-producing rotating element to be stabilized and the heat production efficiency of that heat-producing rotating element to be improved. A fixing apparatus (200) is equipped with a heat-producing sleeve (210), an induction h |
| 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 |
| 7369804 |
Fixing device |
May 6, 2008 |
| A fixing apparatus can prevent an excessive rise in temperature of a paper non-passage area due to diverted flow of magnetic flux from a paper passage area of a heat-producing element to a paper non-passage area thereof has a small configuration. A center core is rotated by a rotation |
| 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 |
| 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 |
| 6678498 |
Image heating device and image forming apparatus using the same |
January 13, 2004 |
| An image heating device having a predetermined amount of heat generation with a small electric current. The device includes a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted fo |
| 6625417 |
Image heating device and image forming apparatus using the same |
September 23, 2003 |
| An image heating device having a predetermined amount of heat generation with a small electric current. The device has a heat-generating roller having magnetism and conductivity, and an exciting coil opposed to the peripheral face of the heat-generating roller and adapted for allowing th |
