| Patent Number |
Title Of Patent |
Date Issued |
| 7623817 |
Fixing device and image forming apparatus having the same |
November 24, 2009 |
| A fixing device includes a pressing roller, a fixing belt to receive a rotation force transferred from the pressing roller and to rotate thereby, a nip forming member which is mounted inside the fixing belt, the nip forming member including a heat transmission unit formed thereon, an |
| 7598476 |
Image forming apparatus having improved flicker characteristics and method thereof |
October 6, 2009 |
| A fusing apparatus in an image forming apparatus that heats a fusing unit by applying an induced current is provided. The flicker characteristics of the fusing apparatus are improved by gradually increasing the amount of induced current applied to the fusing unit for a predetermined amou |
| 7565103 |
Device for fusing toner on print medium |
July 21, 2009 |
| A fusing device for fusing a predetermined toner image on paper, and which controls the heating range of a fusing unit by inputting an eddy current generated by a transformer to a terminal corresponding to the size of paper selected from a plurality of terminals of the fusing unit. The |
| 7565089 |
Fusing roller and fusing device using the same |
July 21, 2009 |
| A fusing roller and a fusing device using the fusing roller. The fusing roller applies heat to a toner image and fuses the toner image onto a piece of paper and is heated by a coil connected to an external power source. The fusing roller includes a pair of end caps which are provided |
| 7437114 |
Heating roller and image fixing apparatus using the same |
October 14, 2008 |
| A heating roller includes an exterior aluminum pipe preferably coated with a Teflon layer. A primer layer is disposed inside the exterior aluminum pipe. An outer insulating layer is disposed inside the primer layer. A heating coil is disposed inside the outer insulating layer. An inner |
| 7424234 |
Image printer with common filter to filter common operating frequency band of fixing module and |
September 9, 2008 |
| An image printer using a common filter to remove harmonic waves generated at a common operating frequency band of a fixing module to fix toner onto a print medium using high frequency power generated from a high frequency generator and a switch mode power supply module to supply operatin |
| 7415234 |
Image fixing device of an image forming apparatus |
August 19, 2008 |
| A fixing device of an image forming apparatus includes a fixing roller rotatably mounted on a moving path of a printing medium having a toner image transferred thereon to fuse the toner image on the printing medium, a heater mounted in the fixing roller to generate a magnetic field by |
| 7369802 |
Fusing roller with adjustable heating area and fusing apparatus using the same |
May 6, 2008 |
| A fusing roller and a fusing apparatus having the same are provided. The fusing roller includes: an induced coil, which generates an alternating magnetic flux that varies depending on an input alternating current; a heating roller, which is heated by an eddy current that is generated by |
| 7356299 |
Fusing roller and fusing apparatus having the same |
April 8, 2008 |
| A fusing roller and a fusing apparatus having the fusing roller are provided, wherein the fusing roller includes a coil unit, which generates resistive heat and an alternating magnetic flux in response to an alternating current input thereto, a heating roller unit, which generates an |
| 7289758 |
Fixing device and an image forming apparatus using the same |
October 30, 2007 |
| An image fixing unit includes a heating roller, a pressing roller forming a first fixing nip by contact with an outer surface of the heating roller, and a fixing nip expansion unit forming a second fixing nip by contact with the heating roller. The fixing nip expansion unit includes |
| 7248827 |
Fusing roller device for electrophotographic image forming apparatus |
July 24, 2007 |
| A fusing roller device for an electrophotographic image forming apparatus, the device including an internal tube having both ends open; a heating portion surrounding the internal tube and generating heat by externally supplied current; and a fusing roller surrounding the heating portion |
| 7164880 |
Fusing device for an electrophotographic image forming apparatus |
January 16, 2007 |
| A fusing device for an electrophotographic image forming apparatus. The fusing device includes a fusing roller with an outer rubber roller, a heating pipe, both ends of which are sealed and in which a predetermined amount of a working fluid is contained, a heater which is placed on the |
| 7076198 |
Fixing device of an image forming apparatus having a heat transfer unit |
July 11, 2006 |
| A fixing device of an image forming apparatus includes a heat roller and a pressure roller. The heat roller includes a roller support frame, a film tube, and a heat transfer unit. The roller support frame is fixedly installed with the heat roller. The roller support frame supports the |
| 7046951 |
Fusing roller used with an image forming apparatus and a method of manufacture thereof |
May 16, 2006 |
| A fusing roller used with an image forming apparatus, including a heating pipe, an expandable pipe mounted within the heating pipe, a heating coil interposed between the heating pipe and the expandable pipe and generating a resistance heat when power is supplied, a terminal block con |
| 7024146 |
Fusing roller of image forming apparatus |
April 4, 2006 |
| A fusing roller of an image forming apparatus including an outer metallic pipe, an inner metallic pipe disposed inside the outer metallic pipe, a resistance heating body disposed between the outer and the inner metallic pipes, generating a resistance heat with a power supply, an end cap |
| 6990310 |
Fusing roller device for electrophotographic image forming apparatus |
January 24, 2006 |
| A fusing roller device for an electrophotographic image forming apparatus, the device including an internal tube having both ends open; a heating portion surrounding the internal tube and generating heat by externally supplied current; and a fusing roller surrounding the heating portion |
| 6865365 |
Heating roller of a fixing apparatus and method for manufacturing an electrode for use with the |
March 8, 2005 |
| A heating roller of a fixing apparatus capable of blocking power to a heating roller when temperature rises over a predetermined temperature. The heating roller includes an OFC pipe, a heating coil disposed to cover an outer circumference of OFC pipe, an aluminum pipe covering an outer |
| 6847798 |
Fusing device for an electrophotographic image forming apparatus |
January 25, 2005 |
| A fusing device for an electrophotographic image forming apparatus. The fusing device includes a heat pipe, both ends of which are sealed and in which a predetermined amount of a working fluid is contained, a cylindrical roller which surrounds the heat pipe, and a heating element whi |
