公开(公告)号：US20090003867A1

公开(公告)日：2009-01-01

申请号：US12147978

申请日：2008-06-27

申请人： Ippei FUJIMOTO

发明人： Ippei FUJIMOTO

IPC分类号： G03G15/20 ,  F27D19/00 ,  B32B37/06

CPC分类号： G03G15/2039 ,  G03G2215/2032

摘要： A heating device includes a heat applying member heated by a heat source, a pressure applying member pressure contacting the heat applying member with a prescribed pressure, and a temperature detection device that detects temperature of the heat applying member. A timing device is provided to count time elapsing from when the heat source starts heating the heat-applying member. A control device is provided to determine that heat application as a start up operation to the heating member is completed when the temperature detected by the temperature detection device reaches a prescribed threshold and the elapsing time counted by the timing device reaches a prescribed threshold.

摘要翻译： 加热装置包括由热源加热的加热构件，与规定压力接触的加热构件的加压构件压力，以及检测加热构件的温度的温度检测装置。 提供了一种定时装置，用于计算从热源开始加热加热构件的时间的时间。 提供一种控制装置，用于当温度检测装置检测到的温度达到规定的阈值并且由定时装置计数的经过时间达到规定的阈值时，确定作为加热部件的启动操作的热施加完成。

公开(公告)号：US20180284663A1

公开(公告)日：2018-10-04

申请号：US15933588

申请日：2018-03-23

申请人： Ryohei MATSUDA ,  Ippei FUJIMOTO ,  Takayuki SEKI

发明人： Ryohei MATSUDA ,  Ippei FUJIMOTO ,  Takayuki SEKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2007 ,  G03G15/2042 ,  G03G15/2064 ,  G03G2215/00734 ,  G03G2215/2035

摘要： A fixing device includes a fixing sleeve, a pair of holders, a heater, a nip formation pad, a pressing member, a pressing mechanism, and a controller. The nip formation pad has a regular crown-shaped surface abutted against an inner surface of the fixing sleeve. The pressing member forms a nip with the nip formation pad in a state of abutting against the fixing sleeve. The controller controls the pressing mechanism in a first mode in which the pressing mechanism presses the pressing member toward the nip formation pad with a first pressing force to equalize a width of the nip and a second mode in which the pressing mechanism presses the pressing member with a second pressing force greater than the first pressing force so that the width of the nip is smaller at both ends than at a center of the nip.

公开(公告)号：US20180157198A1

公开(公告)日：2018-06-07

申请号：US15804459

申请日：2017-11-06

申请人： Takashi SETO ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Takayuki SEKI ,  Ippei FUJIMOTO ,  Hiroyuki SHIMADA ,  Kazunari SAWADA ,  Ryohei MATSUDA

发明人： Takashi SETO ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Takayuki SEKI ,  Ippei FUJIMOTO ,  Hiroyuki SHIMADA ,  Kazunari SAWADA ,  Ryohei MATSUDA

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G15/2028 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a belt, a pressure rotator disposed opposite the belt, and a nip formation unit that forms a fixing nip between the belt and the pressure rotator. The nip formation unit includes a guide face disposed upstream from the fixing nip in a rotation direction of the belt and contoured to separate from the pressure rotator in a direction opposite the rotation direction of the belt. The guide face is adhered with a lubricant moved from an inner circumferential surface of the belt. The belt rotates in the rotation direction when an outer circumferential surface of the belt has a temperature lower than a fixing temperature at which the belt fixes a toner image on a recording medium. The belt rotating in the rotation direction brings the lubricant adhered to the guide face into contact with the belt.

公开(公告)号：US20180017910A1

公开(公告)日：2018-01-18

申请号：US15627704

申请日：2017-06-20

申请人： Kazunari SAWADA ,  Ippei FUJIMOTO ,  Kenji ISHII ,  Takashi SETO ,  Hiroshi YOSHINAGA ,  Takayuki SEKI

发明人： Kazunari SAWADA ,  Ippei FUJIMOTO ,  Kenji ISHII ,  Takashi SETO ,  Hiroshi YOSHINAGA ,  Takayuki SEKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G15/2032 ,  G03G15/2053 ,  G03G2215/025 ,  G03G2215/2035

摘要： A fixing device includes a nip former including a first face to form a fixing nip, a second face being disposed upstream from the first face in a rotation direction of a rotator and defining a predetermined angle relative to the first face, and a bent portion coupling the first face to the second face. An inner circumferential surface of the rotator slides over the first face. A lateral end accumulation portion and a center accumulation portion are defined by the second face and the bent portion of the nip former and the inner circumferential surface of the rotator. The lateral end accumulation portion is accumulated with a lubricant in a first amount. The center accumulation portion is disposed inboard from the lateral end accumulation portion in an axial direction of the rotator and accumulated with the lubricant in a second amount greater than the first amount.

公开(公告)号：US20130209128A1

公开(公告)日：2013-08-15

申请号：US13761624

申请日：2013-02-07

申请人： Kazuya SAITO ,  Takeshi UCHITANI ,  Takamasa HASE ,  Shuutaroh YUASA ,  Ippei FUJIMOTO ,  Shinichi NAMEKATA ,  Ryota TAMASHINA ,  Hiroshi SEO ,  Takumi WAIDA

发明人： Kazuya SAITO ,  Takeshi UCHITANI ,  Takamasa HASE ,  Shuutaroh YUASA ,  Ippei FUJIMOTO ,  Shinichi NAMEKATA ,  Ryota TAMASHINA ,  Hiroshi SEO ,  Takumi WAIDA

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： When calculating an actual turn-on duty based on a required duty according to a feedback control, the actual turn-on duty is corrected using a correction table or a correction conversion formula such that a required turn-on duty and the actual turn-on duty coincide with each other. A fixing heater is controlled according to the corrected actual turn-on duty.

摘要翻译： 当根据反馈控制基于所需的占空比来计算实际接通占空比时，使用校正表或校正转换公式来校正实际接通占空比，使得所需开启占空比和实际开启 职责相互重合。 固定加热器根据修正的实际接通功率进行控制。

公开(公告)号：US20180335733A1

公开(公告)日：2018-11-22

申请号：US15980123

申请日：2018-05-15

申请人： Ryohei MATSUDA ,  Ippei FUJIMOTO ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Takayuki SEKI ,  Kazunari SAWADA

发明人： Ryohei MATSUDA ,  Ippei FUJIMOTO ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Takayuki SEKI ,  Kazunari SAWADA

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes an endless fixing belt, a heat source, an opposed member, a nip formation pad, and a heat conductive member. The nip formation pad includes an abutment region, a first opening portion, and second opening portions. The abutment region includes a plurality of abutment surfaces abutting a first face of the heat conductive member. The first opening portion is disposed at a center of the abutment region to form a non-contact area at which the nip formation pad does not contact the heat conductive member. The abutment region includes an upstream abutment area and a downstream abutment area from the first opening portion in a direction of conveyance of a recording medium. The second opening portions divide at least one area of the upstream abutment area and the downstream abutment area into a plurality of portions in a longitudinal direction of the nip formation pad.

公开(公告)号：US20130209122A1

公开(公告)日：2013-08-15

申请号：US13753827

申请日：2013-01-30

申请人： Ryota YAMASHINA ,  Hiroshi SEO ,  Ippei FUJIMOTO ,  Takumi WAIDA

发明人： Ryota YAMASHINA ,  Hiroshi SEO ,  Ippei FUJIMOTO ,  Takumi WAIDA

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G2215/2029

摘要： A fixing device includes a rotatable fuser member, a rotatable pressure member, a heater, and a controller. The rotatable fuser member is subjected to heating. The rotatable pressure member is disposed opposite the fuser member. The pressure member presses against the fuser member to form a fixing nip therebetween, through which multiple recording media, each spaced apart from each other by an interval distance in a conveyance direction, are sequentially conveyed at a conveyance speed. The heater is disposed adjacent to the fuser member to heat the fuser member. The controller is operatively connected to the heater to control power supply to the heater through a series of on-off switching control cycles, each including an on-time during which the heater power supply is on, and an off-time during which the heater power supply is off, in synchronization with conveyance of the recording medium.

公开(公告)号：US20180173138A1

公开(公告)日：2018-06-21

申请号：US15827085

申请日：2017-11-30

申请人： Takayuki SEKI ,  Takashi SETO ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Ippei FUJIMOTO ,  Kazunari SAWADA ,  Hiroyuki SHIMADA

发明人： Takayuki SEKI ,  Takashi SETO ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Ippei FUJIMOTO ,  Kazunari SAWADA ,  Hiroyuki SHIMADA

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G15/0189 ,  G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes a lateral end heater, disposed opposite a lateral end of an inner circumferential surface of a fixing rotator in an axial direction thereof, to heat the fixing rotator and a thermal conduction aid contacting the fixing rotator and the lateral end heater to conduct heat. The lateral end heater includes a power supply portion disposed outboard from a lateral end of the thermal conduction aid in a longitudinal direction thereof and disposed opposite the inner circumferential surface of the fixing rotator. The power supply portion includes an electrode. A cover covers the power supply portion and includes a cover face disposed opposite the inner circumferential surface of the fixing rotator. A height adjuster adjusts a height of the cover face of the cover and causes the cover face to define an identical plane with a fixing rotator side face of the thermal conduction aid.

公开(公告)号：US20130209127A1

公开(公告)日：2013-08-15

申请号：US13759349

申请日：2013-02-05

申请人： Ippei FUJIMOTO ,  Hiroshi SEO ,  Ryota YAMASHINA ,  Takumi WAIDA

发明人： Ippei FUJIMOTO ,  Hiroshi SEO ,  Ryota YAMASHINA ,  Takumi WAIDA

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G13/20 ,  G03G15/2046 ,  G03G2215/2035

摘要： A fixing device includes a rotatable fuser member, a rotatable pressure member, a heater, a temperature detector, and a controller. The rotatable fuser member is subjected to heating. The rotatable pressure member is disposed opposite the fuser member. The pressure member presses against the fuser member to form a fixing nip therebetween. The heater is disposed adjacent to the fuser member to heat the fuser member. The temperature detector is directed to at least one of the fuser member, the pressure member, and the heater to detect an operational temperature of the fixing device. The controller is operatively connected to the temperature detector and the heater to control power supply to the heater according to readings of the temperature detector, so as to regulate the detected operational temperature at a setpoint temperature that is variable depending on a print page printed on the recording medium.

摘要翻译： 定影装置包括可旋转的定影器构件，可旋转的压力构件，加热器，温度检测器和控制器。 可旋转的定影器构件经受加热。 可旋转的压力构件设置成与定影器构件相对。 压力部件压靠定影部件，以在它们之间形成定影辊隙。 加热器邻近定影器构件设置以加热定影器构件。 温度检测器指向定影器构件，压力构件和加热器中的至少一个，以检测定影装置的操作温度。 控制器可操作地连接到温度检测器和加热器，以根据温度检测器的读数来控制对加热器的供电，以便根据打印在印刷机上的打印页面可变的设定点温度调节检测到的操作温度 记录介质。

公开(公告)号：US20130209120A1

公开(公告)日：2013-08-15

申请号：US13759443

申请日：2013-02-05

申请人： Shinichi NAMEKATA ,  Takeshi UCHITANI ,  Takamasa HASE ,  Shuutaroh YUASA ,  Kazuya SAITO ,  Ryota YAMASHINA ,  Ippei FUJIMOTO ,  Hiroshi SEO ,  Takumi WAIDA

发明人： Shinichi NAMEKATA ,  Takeshi UCHITANI ,  Takamasa HASE ,  Shuutaroh YUASA ,  Kazuya SAITO ,  Ryota YAMASHINA ,  Ippei FUJIMOTO ,  Hiroshi SEO ,  Takumi WAIDA

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2035

摘要： Heat-equalizing rotation of a fixing member and a pressing member for equalizing the distribution of the temperature of a surface of the fixing member in a width direction is performed after a recording medium having a size less than or equal to a predetermined size in the width direction passes a nip portion and before a recording medium having a size greater than the predetermined size in the width direction passes the nip portion. Further, a termination condition of the heat-equalizing rotation is selected from among a plurality of different kinds of termination conditions, based on image formation related information related to next image formation performed after the heat-equalizing rotation.

摘要翻译： 在具有尺寸小于或等于预定尺寸的记录介质的宽度方向上执行固定构件和用于均衡固定构件的表面在宽度方向上的温度分布的按压构件的均热旋转 方向通过夹持部分，并且在宽度方向上具有大于预定尺寸的尺寸的记录介质通过夹持部分之前。 此外，基于与在热均衡旋转之后进行的下一次图像形成相关的图像形成相关信息，从多个不同种类的终止条件中选择热均衡旋转的终止条件。