公开(公告)号：US07190915B2

公开(公告)日：2007-03-13

申请号：US10994297

申请日：2004-11-23

申请人： Tomoo Akizuki ,  Shinobu Akama ,  Takahiro Endo ,  Tohru Saito

发明人： Tomoo Akizuki ,  Shinobu Akama ,  Takahiro Endo ,  Tohru Saito

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2016 ,  G03G2215/2019 ,  G03G2215/2035

摘要： An update value for updating a count value is changed in accordance with the time interval of activations of a fixing unit. Every time the fixing unit is activated, the count value is updated in accordance with the update value. The target temperature of the heater of the first rotary body is set in accordance with the updated count value to control the temperature of the fixing unit.

摘要翻译： 用于更新计数值的更新值根据定影单元的激活的时间间隔而改变。 每次修复单元被激活时，根据更新值更新计数值。 根据更新的计数值来设定第一旋转体的加热器的目标温度，以控制定影单元的温度。

公开(公告)号：US20050117930A1

公开(公告)日：2005-06-02

申请号：US10994297

申请日：2004-11-23

申请人： Tomoo Akizuki ,  Shinobu Akama ,  Takahiro Endo ,  Tohru Saito

发明人： Tomoo Akizuki ,  Shinobu Akama ,  Takahiro Endo ,  Tohru Saito

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2016 ,  G03G2215/2019 ,  G03G2215/2035

摘要： An update value for updating a count value is changed in accordance with the time interval of activations of a fixing unit. Every time the fixing unit is activated, the count value is updated in accordance with the update value. The target temperature of the heater of the first rotary body is set in accordance with the updated count value to control the temperature of the fixing unit.

摘要翻译： 用于更新计数值的更新值根据定影单元的激活的时间间隔而改变。 每次修复单元被激活时，根据更新值更新计数值。 根据更新的计数值来设定第一旋转体的加热器的目标温度，以控制定影单元的温度。

公开(公告)号：US08290385B2

公开(公告)日：2012-10-16

申请号：US13349912

申请日：2012-01-13

申请人： Ken Nakagawa ,  Kenji Kanari ,  Masaru Shimura ,  Takashi Shimada ,  Tomoo Akizuki ,  Masahiro Suzuki

发明人： Ken Nakagawa ,  Kenji Kanari ,  Masaru Shimura ,  Takashi Shimada ,  Tomoo Akizuki ,  Masahiro Suzuki

IPC分类号： G03G15/16

CPC分类号： G03G21/0047 ,  G03G21/10 ,  G03G2221/1627

摘要： A charge member charges secondary transfer remaining toner on an intermediate transfer member to a polarity opposite to a normal charge polarity. The remaining toner is moved by a transfer bias, from the intermediate transfer member onto an image bearing member. A BK station is arranged on the downstream of other stations. In a continuous BK monochromatic mode, by applying a reverse bias to transfer portions of the other stations and applying the transfer bias only to the BK station, remaining toner can be collected into the BK station (simultaneously with the transfer). In a full-color mode, remaining toner is collected into the station on the uppermost stream. Thus, the image bearing member for collecting remaining toner on the intermediate transfer member differs according to the mode, thereby suppressing the collection of remaining toner being concentrated on one image bearing member.

摘要翻译： 充电构件将中间转印构件上的二次转印剩余调色剂充电到与正常电荷极性相反的极性。 剩余的调色剂通过转印偏压从中间转印部件移动到图像承载部件上。 其他车站下游设有BK车站。 在连续的BK单色模式中，通过施加反向偏压来转移其它工位的部分并将转印偏压施加到BK工位，剩余的调色剂可以被收集到BK工位（与转印同时）。 在全色模式下，剩余碳粉被收集到最上游的车站。 因此，根据模式，用于收集中间转印部件上的剩余调色剂的图像承载部件不同，从而抑制剩余调色剂的收集集中在一个图像承载部件上。

公开(公告)号：US20120243894A1

公开(公告)日：2012-09-27

申请号：US13427289

申请日：2012-03-22

申请人： Kensuke Umeda ,  Ken Nakagawa ,  Tomoo Akizuki ,  Kazuhiro Doda

发明人： Kensuke Umeda ,  Ken Nakagawa ,  Tomoo Akizuki ,  Kazuhiro Doda

IPC分类号： G03G15/20

CPC分类号： G03G15/2032 ,  G03G2215/00561 ,  G03G2215/00603 ,  G03G2215/00721

摘要： An image forming apparatus includes an image forming station for forming a toner image on a sheet; an image heating portion including a flexible heating roller and a pressing roller to form a nip, the image heating portion being effective to heat while feeding the sheet, by the nip; a pressing state switching portion for switching a state of the nip between a pressing state and a released state; and a sheet feeding position detector for detecting misalignment of the sheet relative to a feeding reference position with respect to a direction perpendicular to a feeding direction of the sheet; wherein when the sheet feeding position detector detects the misalignment, the pressing state switching portion permits the nip to feed at least one sheet in a state of the misalignment, and then switches the nip to the released state and then switches to the pressing state.

摘要翻译： 图像形成装置包括用于在片材上形成调色剂图像的图像形成工位; 图像加热部分，包括柔性加热辊和加压辊以形成辊隙，所述图像加热部分通过所述辊隙有效地加热所述片材; 按压状态切换部，用于切换压入状态与释放状态之间的夹持状态; 以及片材进给位置检测器，用于相对于与片材的进给方向垂直的方向检测片材相对于进给基准位置的不对准; 其中，当送纸位置检测器检测到未对准时，按压状态切换部分允许压区在未对准的状态下馈送至少一张纸，然后将辊隙切换到释放状态，然后切换到按压状态。

公开(公告)号：US20110188881A1

公开(公告)日：2011-08-04

申请号：US13011080

申请日：2011-01-21

申请人： Tomoo Akizuki ,  Keisuke Ishizumi ,  Seiji Saito

发明人： Tomoo Akizuki ,  Keisuke Ishizumi ,  Seiji Saito

IPC分类号： G03G21/00 ,  G03G15/16

CPC分类号： G03G15/16 ,  G03G21/00

摘要： The image forming apparatus is capable of collecting discharged toner satisfactorily even when a power source for discharging toner from a voltage application member to a moving member and a power source for collecting the discharged toner from the moving member onto an image bearing member are provided in common.

摘要翻译： 图像形成装置即使当将调色剂从电压施加构件向移动构件排出的电源和用于将排出的调色剂从移动构件收集到图像承载构件上的电源被共同地设置时，也能够令人满意地收集排出的调色剂 。

公开(公告)号：US20110150524A1

公开(公告)日：2011-06-23

申请号：US12967236

申请日：2010-12-14

申请人： Keisuke Ishizumi ,  Tomoo Akizuki ,  Takeshi Shinji ,  Seiji Saito

发明人： Keisuke Ishizumi ,  Tomoo Akizuki ,  Takeshi Shinji ,  Seiji Saito

IPC分类号： G03G15/16 ,  G03G21/00

CPC分类号： G03G15/161

摘要： An image forming apparatus includes a drum for bearing a toner image; a rotatable belt onto which the toner image is to be transferred from the drum; a primary transfer member for primary transferring the toner image from the drum onto the belt; a secondary transfer member for secondary transferring the toner image from the belt onto a transfer material; and a charging member for electrically charging toner remaining on the belt. The image forming apparatus is capable of executing a belt cleaning mode in which the toner remaining on the belt is electrically charged, and a charging member cleaning mode in which the toner is transferred from the charging member onto the belt and then onto the drum. When the charging member cleaning mode is executed, the charging member is moved at least once from a belt separation position or away from a belt contact position.

摘要翻译： 图像形成装置包括用于承载调色剂图像的滚筒; 调色剂图像将从滚筒传送到其上的可旋转带; 用于将调色剂图像从滚筒初次转印到带上的一次转印部件; 用于将调色剂图像从带传送到转印材料上的二次转印部件; 以及用于对剩余在带上的调色剂进行充电的充电部件。 图像形成装置能够执行其中保持在带上的调色剂带电的带清洁模式以及调色剂从充电部件转移到带上然后到鼓上的充电部件清洁模式。 当执行充电构件清洁模式时，充电构件从皮带分离位置或皮带接触位置移动至少一次。

公开(公告)号：US20070116502A1

公开(公告)日：2007-05-24

申请号：US11623913

申请日：2007-01-17

申请人： Yuusuke Shimizu ,  Keisuke Mochizuki ,  Atsutoshi Ando ,  Michio Uchida ,  Tomoo Akizuki

发明人： Yuusuke Shimizu ,  Keisuke Mochizuki ,  Atsutoshi Ando ,  Michio Uchida ,  Tomoo Akizuki

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2019 ,  G03G2215/2035 ,  G03G2215/2061

摘要： When a fixing device becomes uncontrollable and a large amount of electric power is continuously supplied to the heater, concentration of mechanical stress on a heater is suppressed, whereby shear fracture of the heater is prevented from occurring. A longitudinal region of the heater in which a heat generation resistive member is provided is supported by a heater support surface of a heater holder, and an opposed surface of the heater holder that is opposed to a longitudinal region of the heater in which the heat generation resistive member is not provided is designed not to be in contact with the heater.

摘要翻译： 当定影装置变得不可控制并且向加热器连续地供应大量电力时，抑制加热器上的机械应力集中，从而防止加热器的剪切断裂。 其中设置有发热电阻构件的加热器的纵向区域由加热器保持器的加热器支撑表面和与加热器的纵向区域相对的加热器支架的相对表面支撑，其中发热 不提供电阻构件设计为不与加热器接触。

公开(公告)号：US08660452B2

公开(公告)日：2014-02-25

申请号：US13115212

申请日：2011-05-25

申请人： Seiji Saito ,  Tomoo Akizuki ,  Takeshi Shinji ,  Keisuke Ishizumi ,  Jun Matsumoto

发明人： Seiji Saito ,  Tomoo Akizuki ,  Takeshi Shinji ,  Keisuke Ishizumi ,  Jun Matsumoto

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： H02M5/12 ,  G03G15/1675 ,  G03G15/5004 ,  G03G2215/1614 ,  H02M2001/0077

摘要： An image forming apparatus includes an image bearing member, a transfer member, and a power supply unit that outputs a voltage to the transfer member. The power supply unit includes a first voltage generation circuit that includes a piezoelectric transformer driven at a drive frequency within a predetermined frequency area to output a first voltage having a predetermined polarity, and a second voltage generation circuit that outputs a second voltage with a polarity opposite to the predetermined polarity. In addition, a control unit controls the power supply unit to output a superposed voltage as a voltage having the predetermined polarity and corresponding to a voltage output from the piezoelectric transformer by driving the piezoelectric transformer at a driven frequency out of range of the predetermined frequency area, with the superposed voltage being a voltage in which the first voltage and the second voltage are superposed.

摘要翻译： 图像形成装置包括图像承载部件，转印部件和向转印部件输出电压的电源单元。 电源单元包括：第一电压产生电路，其包括以预定频率区域内的驱动频率驱动的压电变压器，以输出具有预定极性的第一电压;以及第二电压产生电路，其输出极性相反的第二电压 达到预定的极性。 此外，控制单元控制电源单元输出叠加的电压作为具有预定极性的电压并且对应于从压电变压器输出的电压，通过驱动压电变压器在超出预定频率区域的范围内的驱动频率 ，叠加电压是第一电压和第二电压叠加的电压。

公开(公告)号：US08577248B2

公开(公告)日：2013-11-05

申请号：US13038820

申请日：2011-03-02

申请人： Shuhei Kawasaki ,  Motoki Adachi ,  Tomoo Akizuki

发明人： Shuhei Kawasaki ,  Motoki Adachi ,  Tomoo Akizuki

IPC分类号： G03G15/16 ,  G03G15/00 ,  G03G21/00

CPC分类号： G03G15/161 ,  G03G21/0005

摘要： When toner on an intermediate transfer member is picked up by a cleaning unit by transferring the toner to an image bearing member in a recovery operation, pickup conditions are controlled to be changed on the basis of the ambience detected in performing the recovery operation and such that the toner on the intermediate transfer member is picked up by the cleaning unit while being temporarily retained by a secondary transfer roller.

摘要翻译： 当在中间转印部件上的调色剂被清洁单元拾取时，通过在恢复操作中将调色剂转印到图像承载部件上，根据在执行恢复操作中检测到​​的环境来控制拾取条件改变，并且使得 中间转印部件上的调色剂由清洁单元拾取，同时由二次转印辊暂时保持。

公开(公告)号：US08180247B2

公开(公告)日：2012-05-15

申请号：US13160541

申请日：2011-06-15

申请人： Ken Nakagawa ,  Kenji Kanari ,  Masaru Shimura ,  Takashi Shimada ,  Tomoo Akizuki ,  Masahiro Suzuki

发明人： Ken Nakagawa ,  Kenji Kanari ,  Masaru Shimura ,  Takashi Shimada ,  Tomoo Akizuki ,  Masahiro Suzuki

IPC分类号： G03G15/16

CPC分类号： G03G21/0047 ,  G03G21/10 ,  G03G2221/1627

摘要： There is a charge member which charges secondary transfer remaining toner on an intermediate transfer member to a polarity opposite to a normal charge polarity. The transfer remaining toner charged by the charge member is moved in the direction opposite to that of normal toner by a transfer bias and moved from the intermediate transfer member onto an image bearing member. A BK station is arranged on the downstream of other stations. In a continuous BK monochromatic mode, by applying a reverse bias to transfer portions of the other stations and applying the transfer bias only to the BK station, waste toner can be collected into the BK station (simultaneously with the transfer). In a full-color mode, since each transfer bias is applied to all stations, the waste toner is collected into the station on the uppermost stream. Thus, the image bearing member for collecting the transfer remaining toner on the intermediate transfer member is made different according to the mode, thereby suppressing that the collection of the waste toner is concentrated on one image bearing member.

摘要翻译： 存在对中间转印部件上的二次转印剩余调色剂充电至与正常电荷极性相反的极性的充电部件。 由充电元件充电的转印剩余调色剂通过转印偏压沿与正常调色剂相反的方向移动，并从中间转印部件移动到图像承载部件上。 其他车站下游设有BK车站。 在连续的BK单色模式中，通过施加反向偏压来转移其他工位的部分，并将转印偏压仅施加到BK工位，废粉可以被收集到BK工位（与转印同时）。 在全色模式中，由于每个转印偏压都施加到所有工位，废碳粉被收集到最上层的工位中。 因此，用于收集中间转印部件上的转印剩余调色剂的图像承载部件根据模式而不同，从而抑制废调色剂的收集集中在一个图像承载部件上。