公开(公告)号：US20170168430A1

公开(公告)日：2017-06-15

申请号：US15374167

申请日：2016-12-09

申请人： Masakazu IMAI ,  Masaharu FURUYA ,  Tsutomu KATO ,  Katsuhito HARUNO ,  Osamu ICHIHASHI ,  Tatsuya OHSUGI

发明人： Masakazu IMAI ,  Masaharu FURUYA ,  Tsutomu KATO ,  Katsuhito HARUNO ,  Osamu ICHIHASHI ,  Tatsuya OHSUGI

IPC分类号： G03G15/16

CPC分类号： G03G15/162 ,  G03G15/1685

摘要： A roller member includes a cored bar, an elastic layer, a first high resistance member, and a second high resistance member. The elastic layer is disposed on an outer circumferential face of the cored bar. The cored bar has a projecting portion projecting beyond a range in which the elastic layer is disposed, toward an axial end of the cored bar.The first high resistance member is made of a high-resistance material having a higher electrical resistance than an electrical resistance of the cored bar. The first high resistance member is fitted to the projecting portion. The second high resistance member is made of a high-resistance material having a higher electrical resistance than an electrical resistance of the cored bar. The second high resistance member fills a space between the first high resistance member and the elastic layer.

公开(公告)号：US20170168429A1

公开(公告)日：2017-06-15

申请号：US15370301

申请日：2016-12-06

申请人： Masakazu IMAI ,  Tsutomu KATO ,  Katsuhito HARUNO ,  Osamu ICHIHASHI ,  Takahiro KONISHI

发明人： Masakazu IMAI ,  Tsutomu KATO ,  Katsuhito HARUNO ,  Osamu ICHIHASHI ,  Takahiro KONISHI

IPC分类号： G03G15/16

CPC分类号： G03G15/162 ,  G03G15/1685

摘要： A roller member includes a cored bar, an elastic layer, and a non-conductive member. The elastic layer is disposed on an outer circumferential face of the cored bar. The cored bar has a projecting portion projecting beyond a range in which the elastic layer is disposed, toward an axial end of the cored bar. The non-conductive member is made of a non-conductive material. The non-conductive member is disposed on the projecting portion. The non-conductive member bites into an end face of an axial end of the elastic layer.

公开(公告)号：US20140328603A1

公开(公告)日：2014-11-06

申请号：US14256178

申请日：2014-04-18

申请人： Takehide MIZUTANI ,  Hirokazu ISHII ,  Tsutomu KATO ,  Yasufumi TAKAHASHI ,  Shinya TANAKA ,  Osamu ICHIHASHI ,  Yuji KATO

发明人： Takehide MIZUTANI ,  Hirokazu ISHII ,  Tsutomu KATO ,  Yasufumi TAKAHASHI ,  Shinya TANAKA ,  Osamu ICHIHASHI ,  Yuji KATO

IPC分类号： G03G15/00

CPC分类号： G03G15/1605 ,  G03G15/1675

摘要： An image forming apparatus includes an image carrier, a transfer member, a power supply, and a control device that controls the power supply to output a DC-AC superimposed bias or a DC bias to transfer a toner image on the image carrier onto a recording medium. The control device controls the power supply to alternately output a first bias being a DC component the same in polarity as the DC bias and a second bias being a DC component opposite in polarity to the DC bias to clean the transfer member when image formation is not taking place. The first bias is output with two target output values including a first value and a second value lower than the first value. The second bias is output with one target output value. An output time of the second bias is longer than an output time of the first bias.

摘要翻译： 图像形成装置包括图像载体，转印构件，电源和控制装置，其控制电源以输出DC-AC叠加偏置或DC偏压，以将图像载体上的调色剂图像转印到记录 中。 控制装置控制电源以交替地输出与DC偏压极性相同的DC分量的第一偏压，并且第二偏压是与DC偏压极性相反的DC分量，以在图像形成不是时直接清洁转印部件 发生。 输出第一偏置，其中两个目标输出值包括第一值和低于第一值的第二值。 第二个偏置输出一个目标输出值。 第二偏压的输出时间长于第一偏压的输出时间。

公开(公告)号：US20110286759A1

公开(公告)日：2011-11-24

申请号：US13093217

申请日：2011-04-25

申请人： Osamu ICHIHASHI ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Junpei Fujita

发明人： Osamu ICHIHASHI ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Junpei Fujita

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/167 ,  G03G2215/0129 ,  G03G2215/0193

摘要： An image forming apparatus includes a contact member supplied with voltage by a voltage application device, to contact an object; a rotary member rotatable about a rotation fulcrum shaft fixed to an image forming apparatus, to support the contact member; an biasing member to urge the rotary member to press the contact member against the object; a rotary conductive member fixed to the rotary member and connected electrically to the contact member; a main body side conductive member fixed to the rotation fulcrum shaft at the main body side and connected electrically to the voltage application device; and a conductive connector provided along the rotation fulcrum shaft to contact the rotary conductive member in an axial direction to connect electrically the main body side conductive member and the rotary conductive member. A contact of the conductive connector and a contact of the rotary conductive member are unfixed.

摘要翻译： 图像形成装置包括由电压施加装置供给电压的接触构件，以接触物体; 旋转构件，可绕固定到图像形成装置的旋转支点轴旋转，以支撑所述接触构件; 偏压构件，其推动所述旋转构件将所述接触构件压靠在所述物体上; 旋转导电构件，其固定到所述旋转构件并且电连接到所述接触构件; 主体侧导电构件，其固定在主体侧的旋转支点轴上，并与电压施加装置电连接; 以及沿着旋转支点轴设置的导电连接器，以沿轴向接触旋转导电构件，以将主体侧导电构件和旋转导电构件电连接。 导电连接器和旋转导电构件的触点的接触不固定。

公开(公告)号：US20100221029A1

公开(公告)日：2010-09-02

申请号：US12708983

申请日：2010-02-19

申请人： Ryuichi MINBU ,  Kenji SENGOKU ,  Junpei FUJITA ,  Osamu ICHIHASHI

发明人： Ryuichi MINBU ,  Kenji SENGOKU ,  Junpei FUJITA ,  Osamu ICHIHASHI

IPC分类号： G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/161

摘要： To provide an image forming apparatus capable of increasing the life of a rotating cam while preventing the occurrence of a shock jitter and transfer failure. The image forming apparatus is configured to execute a forced movement process for rotating the rotating cam to forcibly move a secondary transfer roller against a biasing force of a bias coil spring at a pre-entry timing prior to the entry of the front edge of a recording sheet into a secondary transfer position, and a pressure intensifying process for rotating the rotating cam to increase transfer pressure at a timing immediately after the entry of the front edge of the recording sheet into the secondary transfer position. As the forced movement process, the image forming apparatus executes, alternately, a first forced movement process for normally driving and rotating the rotating cam, and a second forced movement process for inversely driving and rotating the rotating cam, at a predetermined timing.

摘要翻译： 提供能够在防止发生震动抖动和转印失败的同时延长旋转凸轮的寿命的图像形成装置。 图像形成装置被配置为执行强制移动处理，用于使旋转凸轮旋转，以抵抗偏置螺旋弹簧的偏置力强迫移动二次转印辊，在进入记录的前边缘之前的预录入时刻 以及用于使旋转凸轮旋转以在紧接在记录纸的前边缘进入二次转印位置之后的定时增加转印压力的增压过程。 作为强制移动处理，图像形成装置交替地执行用于正常地驱动和旋转旋转凸轮的第一强制移动处理和用于在预定定时反转驱动和旋转旋转凸轮的第二强制移动处理。

公开(公告)号：US20130189002A1

公开(公告)日：2013-07-25

申请号：US13796167

申请日：2013-03-12

申请人： Osamu ICHIHASHI ,  Ryuuichi MIMBU ,  Kenji SENGOKU ,  Junpei FUJITA

发明人： Osamu ICHIHASHI ,  Ryuuichi MIMBU ,  Kenji SENGOKU ,  Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/0136 ,  G03G15/1615

摘要： A transfer device includes a plurality of rollers, a rotatable intermediate transfer belt wound around and stretched between the rollers, a transfer member disposed in the inner loop of the belt and facing an image bearing member of an image forming apparatus disposed at an outer circumference of the belt, to transfer an image formed onto the surface of the image bearing member when contacting the intermediate transfer belt, and a position adjuster to adjust the position of the intermediate transfer belt at different positions relative to the image bearing member. The positions include a contact state in which the intermediate transfer belt applied with a predetermined tension contacts the image bearing member, a first separation state in which the tensioned intermediate transfer belt separates from the image bearing member, and a second separation state in which the intermediate transfer belt separates further away from the image bearing member.

摘要翻译： 传送装置包括多个辊，在辊之间缠绕并拉伸的可转动的中间转印带;传送构件，其设置在带的内环中，并且面向设置在外周的成像设备的图像承载部件 带，用于当接触中间转印带时将形成在图像承载部件的表面上的图像和位置调节器相对于图像承载部件调整在不同位置的中间转印带的位置。 这些位置包括其中施加有预定张力的中间转印带与图像承载部件接触的接触状态，其中张紧的中间转印带与图像承载部件分离的第一分离状态和第二分离状态，其中中间体 转印带远离图像承载部件分离。

公开(公告)号：US20130322935A1

公开(公告)日：2013-12-05

申请号：US13957993

申请日：2013-08-02

申请人： Osamu ICHIHASHI ,  Ryuuichi MIMBU ,  Kenji SENGOKU ,  Junpei FUJITA

发明人： Osamu ICHIHASHI ,  Ryuuichi MIMBU ,  Kenji SENGOKU ,  Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/167 ,  G03G2215/0129 ,  G03G2215/0193

摘要： An image forming apparatus includes a contact member supplied with voltage by a voltage application device, to contact an object; a rotary member rotatable about a rotation fulcrum shaft fixed to an image forming apparatus, to support the contact member; an biasing member to urge the rotary member to press the contact member against the object; a rotary conductive member fixed to the rotary member and connected electrically to the contact member; a main body side conductive member fixed to the rotation fulcrum shaft at the main body side and connected electrically to the voltage application device; and a conductive connector provided along the rotation fulcrum shaft to contact the rotary conductive member in an axial direction to connect electrically the main body side conductive member and the rotary conductive member. A contact of the conductive connector and a contact of the rotary conductive member are unfixed.

摘要翻译： 图像形成装置包括由电压施加装置供给电压的接触构件，以接触物体; 旋转构件，可绕固定到图像形成装置的旋转支点轴旋转，以支撑所述接触构件; 偏压构件，其推动所述旋转构件将所述接触构件压靠在所述物体上; 旋转导电构件，其固定到所述旋转构件并且电连接到所述接触构件; 主体侧导电构件，其固定在主体侧的旋转支点轴上，并与电压施加装置电连接; 以及沿着旋转支点轴设置的导电连接器，以沿轴向接触旋转导电构件，以将主体侧导电构件和旋转导电构件电连接。 导电连接器和旋转导电构件的触点的接触不固定。

公开(公告)号：US20140334847A1

公开(公告)日：2014-11-13

申请号：US14272810

申请日：2014-05-08

申请人： Yasufumi TAKAHASHI ,  Osamu ICHIHASHI ,  Yuji KATO ,  Junpei FUJITA

发明人： Yasufumi TAKAHASHI ,  Osamu ICHIHASHI ,  Yuji KATO ,  Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G2215/0129

摘要： A transfer device includes an image carrier, a transfer roller, and a moving unit. The moving unit moves the transfer roller between a nip formation state in which the transfer roller forms a transfer nipping portion in contact with the image carrier and a separated state in which the transfer roller is separated from the image carrier. In a contact operation of bringing the transfer roller into contact with the image carrier via the recording medium, the moving unit moves the transfer roller toward the image carrier at a moving velocity slower than that in a pressing operation of generating a predetermined nipping pressure by further moving the transfer roller toward the image carrier after the contact operation. The moving unit causes the recording medium to enter the transfer nipping portion in the contact operation.

摘要翻译： 转印装置包括图像载体，转印辊和移动单元。 移动单元在转印辊形成与图像载体接触的转印夹持部分的辊隙形成状态和转印辊与图像载体分离的分离状态下移动转印辊。 在使转印辊经由记录介质与图像载体接触的接触操作中，移动单元以比产生预定压接压力的按压操作更慢的移动速度将转印辊移动到图像载体 在接触操作后将转印辊移向图像载体。 移动单元在接触操作中使记录介质进入转印夹持部分。

公开(公告)号：US20130243482A1

公开(公告)日：2013-09-19

申请号：US13845780

申请日：2013-03-18

申请人： Yuji KATO ,  Yasufumi TAKAHASHI ,  Osamu ICHIHASHI

发明人： Yuji KATO ,  Yasufumi TAKAHASHI ,  Osamu ICHIHASHI

IPC分类号： G03G15/16

CPC分类号： G03G15/14 ,  G03G15/0131 ,  G03G15/0189 ,  G03G15/161 ,  G03G15/168

摘要： An image forming apparatus includes: a transfer unit that is detachably attachable to a housing of the image forming apparatus and includes: a transfer member configured to contact the image carrier; a movable frame that supports the transfer member and configured to rotate around a fulcrum shaft; a driving input member coaxially arranged with the fulcrum shaft and configured to connect to a first driving transmitting member, and a second driving transmitting member supported by the movable frame and configured to transmit a driving force inputted by the driving input member to the transfer member. The image forming apparatus further includes a contact/separation unit configured to press the transfer member against the image carrier and to separate the transfer member from the image carrier by moving the movable frame around the fulcrum shaft while the transfer unit is attached to the image forming apparatus.

摘要翻译： 图像形成装置包括：可拆卸地附接到图像形成装置的壳体的传送单元，包括：被配置为接触图像载体的传送部件; 可移动框架，其支撑所述转印构件并且构造成围绕支点轴旋转; 驱动输入部件，其与所述支点轴同轴布置并且被构造成连接到第一驱动传递部件;以及第二驱动传递部件，其由所述可动框架支撑并且被配置为将由所述驱动输入部件输入的驱动力传递到所述传送部件。 图像形成装置还包括接触/分离单元，该接触/分离单元构造成将转印构件压靠在图像载体上，并且通过使可移动框架围绕支点轴移动而将转印构件与图像载体分离，同时将转印单元附接到图像形成 仪器。

公开(公告)号：US20130114982A1

公开(公告)日：2013-05-09

申请号：US13644471

申请日：2012-10-04

申请人： Osamu ICHIHASHI ,  Yasufumi Takahashi ,  Junpei Fujita

发明人： Osamu ICHIHASHI ,  Yasufumi Takahashi ,  Junpei Fujita

IPC分类号： G03G15/01

CPC分类号： G03G15/1615 ,  G03G15/0131 ,  G03G15/0189 ,  G03G2215/0158

摘要： An image forming apparatus includes multiple image bearing members, toner image forming devices, and a transfer unit. The transfer unit includes an intermediate transfer belt entrained about a plurality of rollers and onto which toner images are transferred from the image bearing members, a reference member to position the transfer unit in place, a frame to hold the plurality of rollers a certain distance from the reference member, and a moving device including a holding member to hold movably one of the rollers relative to the frame to change the position of the roller between a multiple color mode for forming a multiple color image and a single color mode for forming a single color image so that the intermediate transfer belt contacts and separates from the image bearing member. As the holding member contacts the reference member, the intermediate transfer belt contacts the image bearing members.

摘要翻译： 图像形成装置包括多个图像承载部件，调色剂图像形成装置和转印单元。 转印单元包括夹带在多个辊上的中间转印带，并且从图像承载部件转印到哪个调色剂图像上，参考部件将转印单元定位在适当的位置，用于将多个辊保持一定距离的框架 参考构件和移动装置，其包括保持构件，用于相对于框架可移动地保持辊子之一，以在用于形成多色图像的多色模式和用于形成单个颜色的单色模式之间改变滚子的位置 使得中间转印带与图像承载部件接触并分离。 当保持构件接触基准构件时，中间转印带与图像承载构件接触。