公开(公告)号：US20070122215A1

公开(公告)日：2007-05-31

申请号：US11385776

申请日：2006-03-22

申请人： Jeonghwa Kim ,  Dong-jin Seol

发明人： Jeonghwa Kim ,  Dong-jin Seol

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/206 ,  G03G2215/2009

摘要： A fixing device of an image forming apparatus includes a heating roller, a pressing roller forming a first fixing nip by contacting the heating roller, and a pressing member disposed at a lower stream of the heating roller and forming a second fixing nip by contacting the heating roller. A fixing belt runs along a caterpillar track, and winds around the pressing roller and the pressing member. The pressing member includes a protrusion part for pressing the paper passed through the second fixing nip by greater pressure at a nip outlet than at the second fixing nip. Accordingly, as the width of the fixing nip is increased, the staying time at the fixing nip increases, thereby improving printing quality according to performance of high-speed printing. Additionally, wrap jams of the paper may be substantially prevented from occurring at the nip outlet.

摘要翻译： 图像形成装置的定影装置包括加热辊，通过使加热辊接触而形成第一定影辊隙的加压辊和设置在加热辊的下游的加压构件，并且通过使加热辊接触而形成第二定影辊隙 滚筒。 一个定影带沿着一条履带履带，绕着该压辊和该按压件卷绕。 按压构件包括用于在压区出口处比在第二定影夹持部处通过更大的压力挤压穿过第二定影夹持部的纸张的突出部。 因此，随着定影辊隙的宽度增加，定影辊隙处的停留时间增加，从而根据高速印刷的性能提高印刷质量。 此外，可以基本上防止在辊隙出口处发生纸的卡纸。

公开(公告)号：US20070092313A1

公开(公告)日：2007-04-26

申请号：US11412095

申请日：2006-04-27

申请人： Jeonghwa Kim ,  Hwan-guem Kim

发明人： Jeonghwa Kim ,  Hwan-guem Kim

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2009

摘要： 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 an auxiliary pressing member mounted at one side of the pressing roller and forming the second fixing nip by contact with the outer surface of the heating roller, an endless belt moving along a caterpillar track surrounding outer circumferences of the heating roller and the auxiliary pressing member, and a resilient unit biasing the heating roller and the auxiliary pressing member resiliently toward the heating roller.

摘要翻译： 图像定影单元包括加热辊，通过与加热辊的外表面接触形成第一定影辊隙的加压辊以及通过与加热辊接触而形成第二定影辊隙的定影辊隙扩展单元。 定影辊隙扩展单元包括安装在加压辊的一侧的辅助按压构件，并与加热辊的外表面接触形成第二定影辊隙，环形带沿着围绕加热辊的外周的履带轨道移动 和辅助按压构件，弹性单元弹性地朝向加热辊偏压加热辊和辅助按压构件。

公开(公告)号：US20070019978A1

公开(公告)日：2007-01-25

申请号：US11378353

申请日：2006-03-20

申请人： Jeonghwa Kim

发明人： Jeonghwa Kim

IPC分类号： G03G15/20

CPC分类号： G03G15/2064

摘要： A fixing unit for an electrophotographic image forming apparatus is provided. The fixing unit includes a heating roller and a pressing roller provided opposite to form a fixing nip and apply pressure to a recording medium passing through the fixing nip. A heating roller holder rotatably supports heating roller shafts provided at both ends of the heating roller. A pressing roller holder is disposed a distance away from pressing roller shafts provided at both ends of the pressing roller, and includes an elastic member that elastically biases the pressing roller towards the heating roller between the pressing roller shafts and the pressing roller holder. A pressure controller controls a fixing pressure applied to the recording medium passing through the fixing nip by controlling a distance between the heating roller holder and the pressing roller holder.

摘要翻译： 提供了一种用于电子照相成像设备的定影单元。 定影单元包括加热辊和加压辊，所述加压辊和加压辊设置成相对于形成定影辊隙并且对通过定影辊隙的记录介质施加压力。 加热辊支架可旋转地支撑设置在加热辊两端的加热辊轴。 压辊架与设置在加压辊两端的加压辊轴距离设置一定距离，并且包括弹性构件，该弹性构件使加压辊朝向加压辊之间弹性地偏压在加压辊轴和加压辊保持架之间。 压力控制器通过控制加热辊保持器和加压辊保持器之间的距离来控制施加到通过定影辊隙的记录介质的定影压力。

公开(公告)号：US20070009292A1

公开(公告)日：2007-01-11

申请号：US11474286

申请日：2006-06-26

申请人： Jeonghwa Kim ,  Hwan-guem Kim

发明人： Jeonghwa Kim ,  Hwan-guem Kim

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fusing unit and a fusing apparatus using the fusing unit and an image forming apparatus having the fusing apparatus are provided. The fusing unit includes a pipe-shaped fusing roller provided with a pipe-shaped internal pipe surrounded by a heating unit generating heat, a plurality of end caps disposed at both ends of the fusing roller, and a locking assembly for fastening the end caps to respective ends of the fusing roller, wherein the locking assembly has a first locking member fastened on an inner side surface of the fusing roller and a second locking member fastening one end of the fusing roller.

摘要翻译： 提供了使用定影单元的定影单元和定影装置以及具有该定影装置的图像形成装置。 定影单元包括管状定影辊，该管状定影辊设置有由产生热量的加热单元包围的管状内管，设置在定影辊两端的多个端盖，以及用于将端盖紧固到 定影辊的相应端部，其中锁定组件具有固定在定影辊的内侧表面上的第一锁定构件和固定定影辊的一端的第二锁定构件。

公开(公告)号：US07289758B2

公开(公告)日：2007-10-30

申请号：US11412095

申请日：2006-04-27

申请人： Jeonghwa Kim ,  Hwan-guem Kim

发明人： Jeonghwa Kim ,  Hwan-guem Kim

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2009

摘要： 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 an auxiliary pressing member mounted at one side of the pressing roller and forming the second fixing nip by contact with the outer surface of the heating roller, an endless belt moving along a caterpillar track surrounding outer circumferences of the heating roller and the auxiliary pressing member, and a resilient unit biasing the heating roller and the auxiliary pressing member resiliently toward the heating roller.