-
公开(公告)号:US20160161888A1
公开(公告)日:2016-06-09
申请号:US14962062
申请日:2015-12-08
申请人: Yuuji WADA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Kazuki YOGOSAWA , Kenji SUGIURA , Takehide MIZUTANI , Tatsuya OHSUGI , Hiroyoshi HAGA , Hirokazu ISHll
发明人: Yuuji WADA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Kazuki YOGOSAWA , Kenji SUGIURA , Takehide MIZUTANI , Tatsuya OHSUGI , Hiroyoshi HAGA , Hirokazu ISHll
IPC分类号: G03G15/16
CPC分类号: G03G21/0005 , G03G15/1665 , G03G15/1675
摘要: An image forming apparatus includes a belt-shaped image bearer; a transfer device disposed opposing to the image bearer; an opposed device disposed opposing to the transfer device; and a transfer bias power source. The image bearer is disposed along an outer circumferential surface of the transfer device at at least one of an upstream side and a downstream side of the transfer portion in a direction of conveyance of the recording medium. The transfer bias power source cyclically alternates the transfer bias applied to the transfer portion, between a transfer directional bias in a transfer direction to transfer the toner image from the image bearer onto the recording medium and a reverse directional bias in a reverse direction of the transfer direction. The transfer bias power source applies the reverse directional bias during a time period longer than 50% of one cycle of the applied transfer bias in the one cycle.
摘要翻译: 图像形成装置包括带状图像载体; 与所述图像载体相对设置的传送装置; 与传送装置相对设置的相对设备; 和转印偏压电源。 图像承载体在转印部分的上游侧和下游侧中的至少一个沿着记录介质的输送方向沿着转印装置的外周表面设置。 转印偏压电源周期性地交替施加到转印部分的转印偏压之间,在转印方向上的转印方向偏压之间,以将调色剂图像从图像载体转印到记录介质上,并且转印反转方向上的反向偏置 方向。 转移偏置电源在一个周期内的施加的转移偏压的一个周期的50%的时间段内施加反向偏置。
-
公开(公告)号:US20160109832A1
公开(公告)日:2016-04-21
申请号:US14881611
申请日:2015-10-13
申请人: Tatsuya OHSUGI , Kenji SUGIURA , Jyunya SAKURABA , Hirokazu ISHll , Toshitaka YAMAGUCHI , Hiroyoshi HAGA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Yuuji WADA , Kazuki YOGOSAWA , Shinya TANAKA , Masayoshi NAKAYAMA
发明人: Tatsuya OHSUGI , Kenji SUGIURA , Jyunya SAKURABA , Hirokazu ISHll , Toshitaka YAMAGUCHI , Hiroyoshi HAGA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Yuuji WADA , Kazuki YOGOSAWA , Shinya TANAKA , Masayoshi NAKAYAMA
IPC分类号: G03G15/16
CPC分类号: G03G15/1675 , G03G15/1605 , G03G15/162 , G03G15/1665 , G03G15/1685
摘要: An image forming apparatus includes an image bearer, a transfer member, and a power source. The image bearer includes a plurality of layers. The transfer member forms a transfer nip between the image bearer and the transfer member. The power source outputs a transfer bias to transfer a toner image from the image bearer onto a recording sheet in the transfer nip. The transfer bias alternates between a transfer-side bias that causes the toner image to move from the image bearer to the recording sheet, and an opposite-side bias different from the transfer-side bias. A duty ratio of a time period, during which the opposite-side bias is output, relative to one cycle of a waveform, is greater than 50%.
摘要翻译: 图像形成装置包括图像载体,转印构件和电源。 图像载体包括多个层。 转印部件在图像承载体和转印部件之间形成转印辊隙。 电源输出转印偏压以将调色剂图像从图像载体转印到转印辊隙中的记录纸上。 转印偏压在导致调色剂图像从图像载体移动到记录片材的转印侧偏置之间交替,并且与转印侧偏压不同的相反侧偏置交替。 相对于波形的一个周期,输出相对侧偏压的时间段的占空比大于50%。
-
公开(公告)号:US20160274504A1
公开(公告)日:2016-09-22
申请号:US15071773
申请日:2016-03-16
申请人: Yuuji WADA , Hiroyoshi HAGA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Kazuki YOGOSAWA , Kenji SUGIURA , Takehide MIZUTANI , Tatsuya OHSUGI , Hirokazu ISHll
发明人: Yuuji WADA , Hiroyoshi HAGA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Kazuki YOGOSAWA , Kenji SUGIURA , Takehide MIZUTANI , Tatsuya OHSUGI , Hirokazu ISHll
IPC分类号: G03G15/16
CPC分类号: G03G15/6591 , G03G15/1605 , G03G15/1675 , G03G2215/00776
摘要: An image forming apparatus includes a toner image forming unit, a nip formation member, a transfer power source, an information acquisition device, and a controller. The information acquisition device acquires specific information that specifies whether a recording sheet as a transfer target of a toner image is an uneven surface sheet having an uneven surface. The controller outputs a bias including a superimposed voltage, in which an alternating current (AC) voltage is superimposed on a direct current (DC) voltage, as a transfer bias from the transfer power source when the specific information acquired by the information acquisition device is not information corresponding to the uneven surface sheet and to output a bias including only the DC voltage as the transfer bias from the transfer power source when the specific information is the information corresponding to the uneven surface sheet.
摘要翻译: 图像形成装置包括调色剂图像形成单元,辊隙形成构件,转印电源,信息获取装置和控制器。 信息获取装置获取指定作为调色剂图像的转印对象的记录纸是具有不平坦表面的不平坦表面片的具体信息。 当由信息获取装置获取的特定信息是由传送电源传递偏压时,控制器输出包括叠加在直流(DC)电压上的交流(AC)电压的叠加电压的偏压, 不是与不平坦表面片材相对应的信息,并且当特定信息是与不平坦表面片材相对应的信息时,输出仅包括来自转印电源的转印偏压的直流电压的偏压。
-
公开(公告)号:US20160161887A1
公开(公告)日:2016-06-09
申请号:US14956707
申请日:2015-12-02
申请人: Kenji SUGIURA , Toshitaka YAMAGUCHI , Hiroyoshi HAGA , Hirokazu ISHII , Shinya TANAKA , Takehide MIZUTANI , Yuuji WADA , Tatsuya OHSUGI , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Kazuki YOGOSAWA
发明人: Kenji SUGIURA , Toshitaka YAMAGUCHI , Hiroyoshi HAGA , Hirokazu ISHII , Shinya TANAKA , Takehide MIZUTANI , Yuuji WADA , Tatsuya OHSUGI , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Kazuki YOGOSAWA
IPC分类号: G03G15/16
CPC分类号: G03G15/1665 , G03G15/1675 , G03G21/20
摘要: An image forming apparatus includes an image bearer, a toner image forming device, a nip forming device, a power source, a controller, and a temperature-and-humidity detector. The toner image forming device forms a toner image on the image bearer. The nip forming device contacts the image bearer to form a transfer nip. The power source outputs a transfer bias, in which an alternating current component is superimposed on a direct current component, to transfer the toner image onto a recording medium interposed in the transfer nip. The temperature-and-humidity detector detects a temperature and humidity. The controller controls the power source to output the transfer bias including the direct current component with a smaller absolute value as at least one of the detected temperature and humidity increases.
摘要翻译: 图像形成装置包括图像载体,调色剂图像形成装置,夹持形成装置,电源,控制器和温度 - 湿度检测器。 调色剂图像形成装置在图像承载体上形成调色剂图像。 辊隙形成装置接触图像载体以形成转印辊隙。 电源输出转印偏压,其中交流分量叠加在直流分量上,以将调色剂图像转印到介于转印辊隙中的记录介质上。 温度和湿度检测器检测温度和湿度。 当检测到的温度和湿度中的至少一个增加时,控制器控制电源输出包括具有较小绝对值的直流分量的转印偏压。
-
公开(公告)号:US20150268591A1
公开(公告)日:2015-09-24
申请号:US14660128
申请日:2015-03-17
申请人: Junpei FUJITA , Naohiro KUMAGAI , Seiichi KOGURE , Kazuki YOGOSAWA , Kenji SUGIURA , Yuuji WADA , Yusuke MITANI
发明人: Junpei FUJITA , Naohiro KUMAGAI , Seiichi KOGURE , Kazuki YOGOSAWA , Kenji SUGIURA , Yuuji WADA , Yusuke MITANI
IPC分类号: G03G15/16
CPC分类号: G03G15/161 , G03G15/1615
摘要: A belt unit is detachably attachable to a body of an image forming apparatus. The belt unit includes a belt, a pressing member, and a frame. The belt is wound around a plurality of supports to travel in a belt travel direction. The belt includes a base layer and an elastic layer. The pressing member presses warping on an edge of the belt. The frame supports the plurality of supports. The pressing member is positioned on the frame.
摘要翻译: 带单元可拆卸地附接到图像形成装置的主体。 带单元包括带,按压构件和框架。 皮带卷绕在多个支撑件上以在带行进方向上行进。 带包括基层和弹性层。 按压构件在带的边缘上按压翘曲。 框架支撑多个支撑。 按压构件定位在框架上。
-
公开(公告)号:US20150205248A1
公开(公告)日:2015-07-23
申请号:US14602462
申请日:2015-01-22
申请人: Kazuki YOGOSAWA , Kenji SUGIURA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Yuuji WADA , Yusuke MITANI
发明人: Kazuki YOGOSAWA , Kenji SUGIURA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Yuuji WADA , Yusuke MITANI
CPC分类号: G03G21/169 , B41F23/002 , G03G15/161 , G03G2215/1661 , G03G2221/1618
摘要: A cleaning device includes a cleaner, a plurality of cleaning sub-units, a sub-unit holder, a detachable transmission assembly, and a plurality of joint couplers. The cleaner scrapes off adhered material from a surface of a cleaning target while contacting the surface of the cleaning target. The cleaning sub-units each includes a holder to hold the cleaner and a drive-receive rotator to receive a driving force. The sub-unit holder holds the cleaning sub-units. The detachable transmission assembly includes a driving-force receive rotator to receive a driving force from an external unit and a plurality of drive transmission rotators to transmit the driving force received by the driving-force receive rotator to the drive-receive rotators of the cleaning sub-units. The joint couplers mounted on the drive-receive rotators and the drive transmission rotators couple the drive-receive rotators with the drive transmission rotators in a rotation axial direction.
摘要翻译: 清洁装置包括清洁器,多个清洁子单元,子单元保持器,可拆卸传动组件和多个接头联接器。 清洁剂在与清洁对象的表面接触的同时从清洁目标的表面刮去附着的材料。 清洁子单元各自包括用于保持清洁器的保持器和用于接收驱动力的驱动接收旋转器。 子单元保持器保持清洁子单元。 可拆卸传动组件包括驱动力接收旋转器,用于接收来自外部单元的驱动力和多个驱动传动旋转器,以将由驱动力接收旋转器接收的驱动力传递到清洁子组件的驱动接收旋转器 -单位。 安装在驱动器接收旋转器上的接合联接器和驱动传动旋转器将驱动传递旋转器与驱动传动旋转器沿旋转轴向耦合。
-
公开(公告)号:US20150037054A1
公开(公告)日:2015-02-05
申请号:US14449270
申请日:2014-08-01
申请人: Atsushi NAGATA , Kenji SUGIURA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Yuuji WADA , Yusuke MITANI , Kazuki YOGOSAWA
发明人: Atsushi NAGATA , Kenji SUGIURA , Naohiro KUMAGAI , Seiichi KOGURE , Junpei FUJITA , Yuuji WADA , Yusuke MITANI , Kazuki YOGOSAWA
IPC分类号: G03G15/16
CPC分类号: G03G15/1665 , G03G15/5058
摘要: An image forming apparatus includes an image bearer; a toner image forming unit, a transfer unit, a detector, and a controller. The toner image forming unit forms a plurality of types of density detection patterns on the surface of the image bearer in mutually-different positions in a surface-movement direction of the image bearer. The density detection patterns have mutually-different lengths in a direction orthogonal to the surface-movement direction of the image bearer. The transfer unit transfers the density detection patterns onto the surface of the transfer member. The detector detects image densities of the density detection patterns transferred on the surface of the transfer member. The controller calculates an image density difference between the density detection patterns on a basis of a detection result obtained by the detector, and corrects a transfer bias for transferring a toner image on a basis of a value of the image density difference.
摘要翻译: 图像形成装置包括图像载体; 调色剂图像形成单元,转印单元,检测器和控制器。 调色剂图像形成单元在图像承载体的表面移动方向上的相互不同的位置的图像载体的表面上形成多种类型的浓度检测图案。 密度检测图案在与图像载体的表面移动方向正交的方向上具有相互不同的长度。 转印单元将浓度检测图案转印到转印部件的表面上。 检测器检测在转印部件的表面上转印的浓度检测图案的图像浓度。 控制器基于由检测器获得的检测结果来计算浓度检测图案之间的图像浓度差,并且基于图像浓度差的值来校正用于转印调色剂图像的转印偏压。
-
公开(公告)号:US20180046115A1
公开(公告)日:2018-02-15
申请号:US15673492
申请日:2017-08-10
申请人: Junpei FUJITA , Naohiro KUMAGAI , Seiichi KOGURE , Kazuki YOGOSAWA , Kenji SUGIURA , Yuuji WADA
发明人: Junpei FUJITA , Naohiro KUMAGAI , Seiichi KOGURE , Kazuki YOGOSAWA , Kenji SUGIURA , Yuuji WADA
IPC分类号: G03G15/16
CPC分类号: G03G15/1615 , G03G15/1685
摘要: A belt device includes a belt unit including a plurality of rotators and a belt looped around the plurality of rotators. The belt device further includes a frame including a plurality of support portions to support the belt unit, a biasing member to bias the belt unit supported by the frame in a predetermined direction, and an adjuster to adjust a position of at least one of the plurality of support portions.
-
公开(公告)号:US20170242371A1
公开(公告)日:2017-08-24
申请号:US15592006
申请日:2017-05-10
申请人: Seiichi KOGURE , Naohiro KUMAGAI , Junpei FUJITA , Kazuki YOGOSAWA , Tatsuya OHSUGI , Kenji SUGIURA , Yuuji WADA , Takehide MIZUTANI
发明人: Seiichi KOGURE , Naohiro KUMAGAI , Junpei FUJITA , Kazuki YOGOSAWA , Tatsuya OHSUGI , Kenji SUGIURA , Yuuji WADA , Takehide MIZUTANI
IPC分类号: G03G15/16
CPC分类号: G03G15/161 , G03G15/16 , G03G15/1605 , G03G15/1615 , G03G15/1665 , G03G15/1675 , G03G15/168 , G03G15/1695 , G03G15/6529 , G03G15/6555 , G03G15/6558 , G03G21/1647 , G03G2215/00409 , G03G2215/0129 , G03G2221/1642
摘要: An image forming apparatus includes a belt-shaped image bearer, a transferer, a guide, two rotators, and a support. The image bearer has an image bearing surface to bear an image thereon. The transferer forms a transfer section between the transferer and the image hearer, to transfer the image onto a recording medium. The guide is disposed upstream from the transfer section in a delivery direction of the recording medium, to guide the recording medium toward the transfer section. The two rotators are disposed upstream from the transfer section in a moving direction of the image bearer and in contact with a non-image bearing surface of the image bearer opposite to the image bearing surface, a first rotator being closer to the transfer section than a second rotator. The support supports the first rotator and the guide and adjusts a position of the first rotator and a position of the guide.
-
公开(公告)号:US20170090374A1
公开(公告)日:2017-03-30
申请号:US15269093
申请日:2016-09-19
申请人: Junpei FUJITA , Kenji SUGIURA , Yuuji WADA , Hiroyoshi HAGA , Seiichi KOGURE , Naohiro KUMAGAI , Kazuki YOGOSAWA
发明人: Junpei FUJITA , Kenji SUGIURA , Yuuji WADA , Hiroyoshi HAGA , Seiichi KOGURE , Naohiro KUMAGAI , Kazuki YOGOSAWA
IPC分类号: G03G15/01
CPC分类号: G03G15/5054 , G03G15/1615 , G03G15/162
摘要: An endless rotatable belt device including an endless rotatable belt, a scale tape bonded on the belt, at least one optical sensor to detect a scale pattern, and auxiliary tape to cover at least one of the first end and the second end of the scale tape of the belt. The scale tape has a first end and a second end and includes at least one scale pattern. The auxiliary tape has a lower surface friction coefficient than the surface friction coefficient of the scale tape.
-
-
-
-
-
-
-
-
-