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1. 发明授权

US09256165B2 Transfer device and image forming apparatus incorporating same 有权
标题翻译：转印装置和包含其的图像形成装置
公开(公告)号：US09256165B2
公开(公告)日：2016-02-09
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： G03G15/08 , 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。

2. 发明授权

US09213272B2 Image forming apparatus including a holding member to hold a roller relative to a frame 有权
标题翻译：图像形成装置包括用于相对于框架保持辊的保持构件
公开(公告)号：US09213272B2
公开(公告)日：2015-12-15
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： G03G15/14 , G03G15/16 , 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。

3. 发明授权

US09141039B2 Image forming apparatus including a cam member to separate a transfer member 有权
标题翻译：图像形成装置包括用于分离转印构件的凸轮构件
公开(公告)号：US09141039B2
公开(公告)日：2015-09-22
申请号：US14018525
申请日：2013-09-05
申请人： Yuji Kato , Ryuuichi Mimbu , Yasufumi Takahashi , Kenji Sengoku , Junpei Fujita , Osamu Ichihashi
发明人： Yuji Kato , Ryuuichi Mimbu , Yasufumi Takahashi , Kenji Sengoku , Junpei Fujita , Osamu Ichihashi
IPC分类号： G03G15/08 , G03G15/00 , G03G15/16
CPC分类号： G03G15/1605 , G03G15/167
摘要： An image forming apparatus includes an image forming unit; an intermediate transfer member; a secondary transfer member to form a secondary transfer nip with the intermediate transfer member and the secondary transfer member; a biasing mechanism to bias the secondary transfer member toward the intermediate transfer member; a cam member rotatable between a first position, at which a predetermined space is formed in the secondary transfer nip, and a second position, at which the secondary transfer member and the intermediate transfer member contact each other; and a contact-separation controller configured to put the cam member in the first position before entry of the recording medium into the secondary transfer nip, rotate the cam member toward the second position when the recording medium enters the secondary transfer nip, and change a start timing of rotation of the cam member in accordance with a thickness of the recording medium.
摘要翻译：图像形成装置包括图像形成单元; 中间转印部件; 二次转印部件，用于与中间转印部件和二次转印部件形成二次转印辊隙; 偏压机构，用于将二次转印构件偏压到中间转印构件; 在第二位置和第二位置之间可旋转的凸轮构件，第二位置在第二位置和第二位置之间转动，第二位置在第二位置和第二位置之间转动，第二位置在二次转印构件和中间转印构件之间相互接触; 以及接触分离控制器，被配置为在记录介质进入二次转印夹持部之前将凸轮部件置于第一位置，当记录介质进入二次转印夹持部时，将凸轮部件朝向第二位置旋转，并且改变开始凸轮构件根据记录介质的厚度旋转的时间。

4. 发明申请

US20140072340A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20140072340A1
公开(公告)日：2014-03-13
申请号：US14018525
申请日：2013-09-05
申请人： Yuji KATO , Ryuuichi Mimbu , Yasufumi Takahashi , Kenji Sengoku , Junpei Fujita , Osamu Ichihashi
发明人： Yuji KATO , Ryuuichi Mimbu , Yasufumi Takahashi , Kenji Sengoku , Junpei Fujita , Osamu Ichihashi
IPC分类号： G03G15/16 , G03G15/01
CPC分类号： G03G15/1605 , G03G15/167
摘要： An image forming apparatus includes an image forming unit; an intermediate transfer member; a secondary transfer member to form a secondary transfer nip with the intermediate transfer member and the secondary transfer member; a biasing mechanism to bias the secondary transfer member toward the intermediate transfer member; a cam member rotatable between a first position, at which a predetermined space is formed in the secondary transfer nip, and a second position, at which the secondary transfer member and the intermediate transfer member contact each other; and a contact-separation controller configured to put the cam member in the first position before entry of the recording medium into the secondary transfer nip, rotate the cam member toward the second position when the recording medium enters the secondary transfer nip, and change a start timing of rotation of the cam member in accordance with a thickness of the recording medium.
摘要翻译：图像形成装置包括图像形成单元; 中间转印部件; 二次转印部件，用于与中间转印部件和二次转印部件形成二次转印辊隙; 偏压机构，用于将二次转印构件偏压到中间转印构件; 在第二位置和第二位置之间可旋转的凸轮构件，第二位置在第二位置和第二位置之间转动，第二位置在第二位置和第二位置之间转动，在第二位置，二次转印构件和中间转印构件相互接触; 以及接触分离控制器，被配置为在记录介质进入二次转印夹持部之前将凸轮部件置于第一位置，当记录介质进入二次转印夹持部时，将凸轮部件朝向第二位置旋转，并且改变开始凸轮构件根据记录介质的厚度旋转的时间。

5. 发明申请

US20130114982A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
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。

6. 发明授权

US08831466B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08831466B2
公开(公告)日：2014-09-09
申请号：US13369805
申请日：2012-02-09
申请人： Junpei Fujita , Ryuuichi Mimbu , Kenji Sengoku , Osamu Ichihashi
发明人： Junpei Fujita , Ryuuichi Mimbu , Kenji Sengoku , Osamu Ichihashi
IPC分类号： G03G21/20 , G03G15/16 , G03G15/01
CPC分类号： G03G15/161 , G03G15/0189 , G03G15/162 , G03G2215/0129
摘要： An image forming apparatus includes a plurality of image bearing members to bear a toner image on a surface thereof, a transfer device including a plurality of transfer members and an endless belt formed into a loop and entrained around the transfer members, to transfer the toner images from the image bearing members onto the surface of the belt so that the toner images are superimposed one atop the other on the belt to form a composite toner image, a plurality of cleaning devices including a cleaning blade to remove residual toner remaining on the image bearing members after transfer of the toner images onto the belt, and a plurality of heaters disposed inside the loop formed by the belt. Each of the heaters is disposed between adjacent image bearing members. The belt is interposed between the plurality of heaters and the plurality of image bearing members.
摘要翻译：图像形成装置包括：多个图像承载部件，用于在其表面上承载调色剂图像;传送装置，包括多个传送部件和环形带，其形成为环状并夹带在传送部件周围，以便传送调色剂图像从图像承载部件移动到带的表面上，使得调色剂图像彼此叠加在带上以形成复合调色剂图像，多个清洁装置包括清洁刮板以除去保留在图像承载上的残留调色剂将调色剂图像转印到带上的部件，以及设置在由带形成的环内的多个加热器。每个加热器设置在相邻的图像承载部件之间。皮带介于多个加热器和多个图像承载部件之间。

7. 发明授权

US08737865B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08737865B2
公开(公告)日：2014-05-27
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： G03G15/00
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。

8. 发明申请

US20130223901A1 IMAGE FORMING APPARATUS WITH TRANSFER NIP ADJUSTMENT FUNCTION 失效
标题翻译：具有转移NIP调整功能的图像形成装置
公开(公告)号：US20130223901A1
公开(公告)日：2013-08-29
申请号：US13861110
申请日：2013-04-11
申请人： Ryuichi MINBE , Katsuya Kawagoe , Kenji Sengoku , Junpei Fujita , Osamu Ichihashi
发明人： Ryuichi MINBE , Katsuya Kawagoe , Kenji Sengoku , Junpei Fujita , Osamu Ichihashi
IPC分类号： G03G15/16
CPC分类号： G03G15/163 , G03G5/082 , G03G15/161 , G03G15/2032 , G03G2215/00738
摘要： A secondary transfer facing roller includes a roller part that has a through-hole penetrating in a rotary shaft line direction at a rotation center position, and a penetrating shaft member penetrating the through-hole of the roller part and spinning the roller part on a surface of the penetrating shaft member. Eccentric cams are fixed to both end regions that are not located in the roller part, so as to rotate integrally with the penetrating shaft member. A position regulating cam and an abutting roller form a gap between the intermediate transfer belt and the secondary transfer roller immediately before a transfer sheet enters a transfer nip part. While the gap is formed, current flows between the intermediate transfer belt and the secondary transfer roller via the position regulating cam and the abutting roller.
摘要翻译：二次转印辊包括：滚子部，其具有在旋转中心位置沿旋转轴线方向贯通的贯通孔，以及穿透辊部件的贯通孔的贯穿轴构件，并将辊部分在表面上旋转的穿透轴构件。偏心凸轮固定到不位于辊部分中的两个端部区域，以便与穿透轴构件一体旋转。位置调节凸轮和邻接辊在转印纸进入转印辊隙部分之前形成中间转印带和二次转印辊之间的间隙。当形成间隙时，电流经由位置调节凸轮和邻接辊在中间转印带和二次转印辊之间流动。

9. 发明授权

US08811867B2 Transfer device and image forming apparatus using same 有权
标题翻译：转印装置和图像形成装置
公开(公告)号：US08811867B2
公开(公告)日：2014-08-19
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： G03G15/01
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。

10. 发明授权

US08718500B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08718500B2
公开(公告)日：2014-05-06
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。

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