公开(公告)号：US08699901B2

公开(公告)日：2014-04-15

申请号：US13041945

申请日：2011-03-07

申请人： Junya Hirayama ,  Toshiya Natsuhara ,  Takeshi Maeyama ,  Shigeo Uetake ,  Nofumi Mizumoto ,  Makiko Watanabe

发明人： Junya Hirayama ,  Toshiya Natsuhara ,  Takeshi Maeyama ,  Shigeo Uetake ,  Nofumi Mizumoto ,  Makiko Watanabe

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/0812 ,  G03G2215/0634

摘要： Provided is a deposited-toner measuring apparatus capable of accurate detection of the amount of toner deposited on the toner carrying member, and an image forming apparatus equipped with the aforementioned measuring apparatus and capable of controlling the amount of toner deposited on the toner carrying member to a desired level so as to provide stable image quality at all times. A deposited-toner measuring apparatus that removes a toner layer in a part of the surface of the toner carrying member, detects change in the capacitance at the portion with a toner layer and the portion without such a toner layer, and detects the amount of the deposited toner based on the detection result of the said change in the capacitance.

摘要翻译： 提供一种能够准确地检测沉积在调色剂承载构件上的调色剂量的沉积调色剂测量装置，以及配备有上述测量装置的图像形成装置，并且能够将沉积在调色剂承载构件上的调色剂的量控制到 所需的水平，以便始终提供稳定的图像质量。 去除调色剂承载构件表面的一部分中的调色剂层的沉积调色剂测量装置检测在具有调色剂层的部分处的电容的变化和没有这样的调色剂层的部分的变化，并且检测 基于所述电容变化的检测结果的沉积调色剂。

公开(公告)号：US20130209150A1

公开(公告)日：2013-08-15

申请号：US13763142

申请日：2013-02-08

申请人： Yuji KAMODA ,  Junya Hirayama ,  Shigeo Uetake ,  Toshiya Natsuhara

发明人： Yuji KAMODA ,  Junya Hirayama ,  Shigeo Uetake ,  Toshiya Natsuhara

IPC分类号： G03G15/20

CPC分类号： G03G15/2089 ,  G03G15/2021 ,  G03G15/206 ,  G03G15/2064 ,  G03G15/6585

摘要： An image forming apparatus includes a fixing device for heating and pressing a toner image on a recording medium, a non-contact heating device arranged downstream of the fixing device for heating the toner image without coming into contact with the toner image, and a pressure contact device arranged downstream of the non-contact heating device and having a smooth surface. The pressure contact device has first and second arrangement states switched according to the kind of the recording medium. In the first arrangement state, the pressure contact device is arranged so as to make pressure contact with the toner image. In the second arrangement state, the pressure contact device is arranged so as not to make pressure contact with the toner image.

摘要翻译： 图像形成装置包括用于加热和压缩记录介质上的调色剂图像的定影装置，布置在定影装置下游的非接触加热装置，用于加热调色剂图像而不与调色剂图像接触;以及压力接触 装置布置在非接触式加热装置的下游并且具有光滑的表面。 压力接触装置根据记录介质的种类切换第一和第二布置状态。 在第一布置状态下，压接装置被布置成与调色剂图像压力接触。 在第二布置状态下，压接装置布置成不与调色剂图像压力接触。

公开(公告)号：US08483600B2

公开(公告)日：2013-07-09

申请号：US12644544

申请日：2009-12-22

申请人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

发明人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G15/0928 ,  G03G2215/0609

摘要： Provided is a development device and an image forming apparatus that realize high image quality with improved decrease in density at high speed development and with reduced occurrence of development hysteresis (ghost) in a hybrid developing method having a plurality of toner carriers, by reducing the decrease in the toner supplying ability to a downstream-side toner carrier, which decrease is caused by the supply of toner to an upstream-side toner carrier on an upstream side in a rotating direction of a developer carrier. By providing a magnetic pole between main magnetic poles, of the developer carrier, facing the toner carriers, a magnetically raised bristle of developer is moved by a magnetic force, while the developer in which development hysteresis due to supplying toner to the upstream-side toner carrier occurred is conveyed to supply toner to the downstream-side toner carrier, whereby a developer layer is stirred.

摘要翻译： 提供了一种显影装置和图像形成装置，其通过改善在高速显影下的密度降低而实现高图像质量，并且通过减少减少的减少在具有多个调色剂载体的混合显影方法中减少显影滞后（重影）的发生 在下游侧调色剂载体的调色剂供给能力中，这是通过在显影剂载体的旋转方向的上游侧向上游侧调色剂载体供给调色剂而引起的。 通过在显影剂载体的主要磁极之间设置磁极，面对调色剂载体，磁力升高的显影剂刷毛通过磁力移动，而由于向上游侧调色剂供应调色剂而产生显影滞后的显影剂 发送的载体被输送以向下游侧调色剂载体供给调色剂，由此搅拌显影剂层。

公开(公告)号：US20120237265A1

公开(公告)日：2012-09-20

申请号：US13416095

申请日：2012-03-09

申请人： Shigeo UETAKE ,  Junya HIRAYAMA ,  Yuji KAMODA ,  Toshiya NATSUHARA

发明人： Shigeo UETAKE ,  Junya HIRAYAMA ,  Yuji KAMODA ,  Toshiya NATSUHARA

IPC分类号： G03G15/10

CPC分类号： G03G15/2021

摘要： A wet-type image forming apparatus includes: a heating unit configured to heat a recording medium and to volatilize liquid carrier in a toner image; a fixing unit configured to fix the toner image on the recording medium and disposed at a downstream side of the heating unit in a conveyance direction of the recording medium; a conveyance unit configured to convey the recording medium from the heating unit to the fixing unit; and a housing disposed to cover the conveyance unit, wherein the recording medium is conveyed on the conveyance unit in the housing toward the fixing unit after heated by the heating unit, in the presence of gas containing the volatilized liquid carrier, and the volatilized liquid carrier is cooled and turned into fine mist liquid carrier and then the fine mist liquid carrier attaches to the recording medium before the recording medium reaches the fixing unit.

摘要翻译： 湿式图像形成装置包括：加热单元，其构造成加热记录介质并使调色剂图像中的液体载体挥发; 固定单元，其被配置为将所述调色剂图像定影在所述记录介质上并且设置在所述加热单元的所述记录介质的输送方向的下游侧; 传送单元，被配置为将所述记录介质从所述加热单元传送到所述定影单元; 以及壳体，其设置成覆盖所述输送单元，其中所述记录介质在所述加热单元加热之后，在包含所述挥发的液体载体的气体的存在下和所述挥发的液体载体的存在下，在所述壳体中的所述输送单元上被输送到所述定影单元 被冷却并变成细雾液体载体，然后细记液体载体在记录介质到达定影单元之前附着到记录介质上。

公开(公告)号：US20120237264A1

公开(公告)日：2012-09-20

申请号：US13416042

申请日：2012-03-09

申请人： Junya HIRAYAMA ,  Shigeo UETAKE ,  Yuji KAMODA ,  Toshiya NATSUHARA

发明人： Junya HIRAYAMA ,  Shigeo UETAKE ,  Yuji KAMODA ,  Toshiya NATSUHARA

IPC分类号： G03G15/10

CPC分类号： G03G15/10 ,  G03G15/2039 ,  G03G15/5062

摘要： An infiltration amount measuring unit is provided to measure the amount of carrier liquid infiltrated in recording paper. An output signal of the infiltration amount measuring unit is input to a control device to be used to calculate a voltage supplied to a heat source (heater) in a pre-fixing unit. A signal of a paper temperature measuring unit is input to the control device, which determines whether a target temperature is reached. The control device estimates the amount of carrier liquid in a toner layer based on the information from the infiltration amount measuring unit. Then, the pre-fixing unit is controlled such that the amount of carrier liquid in the toner layer falls within an appropriate range, based on the estimation result of the amount of carrier liquid.

摘要翻译： 提供渗透量测量单元以测量渗透在记录纸中的载液量。 渗透量测量单元的输出信号被输入到用于计算提供给预定单元中的热源（加热器）的电压的控制装置。 纸张温度测量单元的信号被输入到控制装置，其确定是否达到目标温度。 控制装置基于来自渗透量测量单元的信息来估计调色剂层中的载液量。 然后，基于载液量的估计结果，控制预定影单元使得调色剂层中载液的量落入适当的范围内。

公开(公告)号：US20110222884A1

公开(公告)日：2011-09-15

申请号：US13041945

申请日：2011-03-07

申请人： Junya HIRAYAMA ,  Toshiya Natsuhara ,  Takeshi Maeyama ,  Shigeo Uetake ,  Nofumi Mizumoto ,  Makiko Watanabe

发明人： Junya HIRAYAMA ,  Toshiya Natsuhara ,  Takeshi Maeyama ,  Shigeo Uetake ,  Nofumi Mizumoto ,  Makiko Watanabe

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0634

摘要： Provided is a deposited-toner measuring apparatus capable of accurate detection of the amount of toner deposited on the toner carrying member, and an image forming apparatus equipped with the aforementioned measuring apparatus and capable of controlling the amount of toner deposited on the toner carrying member to a desired level so as to provide stable image quality at all times. A deposited-toner measuring apparatus that removes a toner layer in a part of the surface of the toner carrying member, detects change in the capacitance at the portion with a toner layer and the portion without such a toner layer, and detects the amount of the deposited toner based on the detection result of the said change in the capacitance.

摘要翻译： 提供一种能够准确地检测沉积在调色剂承载构件上的调色剂量的沉积调色剂测量装置，以及配备有上述测量装置的图像形成装置，并且能够将沉积在调色剂承载构件上的调色剂的量控制到 所需的水平，以便始终提供稳定的图像质量。 去除调色剂承载构件表面的一部分中的调色剂层的沉积调色剂测量装置检测在具有调色剂层的部分处的电容的变化和没有这样的调色剂层的部分的变化，并且检测 基于所述电容变化的检测结果的沉积调色剂。

公开(公告)号：US07986892B2

公开(公告)日：2011-07-26

申请号：US12231500

申请日：2008-09-03

申请人： Takeshi Maeyama ,  Toshiya Natsuhara ,  Junya Hirayama ,  Shigeo Uetake

发明人： Takeshi Maeyama ,  Toshiya Natsuhara ,  Junya Hirayama ,  Shigeo Uetake

IPC分类号： G03G15/08

CPC分类号： G03G15/09 ,  G03G15/0815 ,  G03G2215/0609 ,  G03G2215/0634

摘要： Provided are a developing device and an image forming apparatus, the developing device which employs a two-component developer wherein development hysteresis (ghost) is reduced and deterioration of a carrier is stably suppressed, and high-quality images are thus realized for a long period of time. The developing device, which uses a developer including toner, carrier and reverse polarity particles which are charged to have a polarity reverse to that of the toner, performs a collecting operation for collecting the reverse polarity particles at a timing in which image formation is not affected by a collecting operation, where the reverse polarity particles are accumulated in the area enclosed by a toner carrying member, a developer carrying member for toner supply and developer carrying member for collecting toner are collected into a developer container.

摘要翻译： 提供了一种显影装置和图像形成装置，该显影装置采用双组分显影剂，其中显影滞后（重影）减小并且载体的劣化被稳定地抑制，并且因此长时间实现了高质量的图像 的时间。 使用包含调色剂，载体和反极性颗粒的显影剂的显影装置，其被充电具有与调色剂的极性相反的极性，在图像形成不受影响的时刻执行用于收集反极性颗粒的收集操作 通过收集操作，其中反极性颗粒聚集在由调色剂承载构件包围的区域中，用于调色剂供应的显影剂承载构件和用于收集调色剂的显影剂承载构件被收集到显影剂容器中。

公开(公告)号：US07968267B2

公开(公告)日：2011-06-28

申请号：US12769423

申请日：2010-04-28

申请人： Takeshi Maeyama ,  Toshiya Natsuhara ,  Junya Hirayama ,  Masahiko Matsuura ,  Shigeo Uetake

发明人： Takeshi Maeyama ,  Toshiya Natsuhara ,  Junya Hirayama ,  Masahiko Matsuura ,  Shigeo Uetake

IPC分类号： G03G13/08

CPC分类号： G03G15/081 ,  G03G15/0887 ,  G03G15/0891 ,  G03G2215/0607 ,  G03G2221/0005

摘要： The purpose is to provide, in a development apparatus using a two-component developer, a compact development apparatus, image forming apparatus and development method that prevents carrier deterioration and that can carry out good image formation over a long time period. In a development apparatus using a developer in which are mixed a toner, a carrier, and opposite polarity particles that are charged to a polarity opposite to the charging polarity of the toner, the surface charge density of the opposite polarity particles should be in the range of 0.5 to 3.0 times the surface charge density of the carrier.

摘要翻译： 其目的是在使用双组分显影剂的显影装置中提供一种小型显影装置，图像形成装置和显影方法，其防止载流子劣化并且能够在长时间内进行良好的图像形成。 在使用显影剂的显影装置中，其中混合调色剂，载体和与极性相反的极性的相反极性的颗粒，相反极性的颗粒的表面电荷密度应在 为载体表面电荷密度的0.5〜3.0倍。

公开(公告)号：US20110116816A1

公开(公告)日：2011-05-19

申请号：US12943714

申请日：2010-11-10

申请人： Shigeo UETAKE ,  Toshiya NATSUHARA ,  Junya HIRAYAMA ,  Takeshi MAEYAMA ,  Nofumi MIZUMOTO ,  Makiko WATANABE

发明人： Shigeo UETAKE ,  Toshiya NATSUHARA ,  Junya HIRAYAMA ,  Takeshi MAEYAMA ,  Nofumi MIZUMOTO ,  Makiko WATANABE

IPC分类号： G03G15/08

CPC分类号： G03G15/0827 ,  G03G15/0855 ,  G03G15/0862

摘要： A development apparatus and an image forming apparatus wherein optical high-precision detection of the toner amount of a toner layer formed on a toner carrying member is ensured even when the great amount of the toner is deposited on the toner carrying member by transferring all or a part of the toner on the surface of the toner carrying member onto a detecting roller, and wherein stable images are provided at all times.

摘要翻译： 一种显影装置和图像形成装置，其中即使当大量的调色剂通过传送全部或一个或多个调色剂而将大量的调色剂沉积在调色剂承载构件上时，也确保了调色剂承载构件上形成的调色剂层的调色剂量的光学高精度检测 调色剂承载构件表面上的调色剂的一部分到检测辊上，并且其中始终提供稳定的图像。

公开(公告)号：US07761040B2

公开(公告)日：2010-07-20

申请号：US11805815

申请日：2007-05-24

申请人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Masahiko Matsuura ,  Takeshi Maeyama

发明人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Masahiko Matsuura ,  Takeshi Maeyama

IPC分类号： G03G15/09

CPC分类号： G03G15/0887 ,  G03G15/0891 ,  G03G2215/0607

摘要： A developing unit using a two-component developer intended to provide an image forming apparatus capable of forming a high-quality image for a long period of time. A developing unit using a developer contains toner, carrier and opposite polarity particles having a polarity opposite to the charging polarity of toner includes separation means for separating the toner or opposite polarity particles, and control mechanism for controlling opposite polarity particle separation ratio in response to the image area ratio and the number of prints.

摘要翻译： 一种使用双组分显影剂的显影单元，其旨在提供能够长时间形成高质量图像的图像形成装置。 使用显影剂的显影单元包含调色剂，载体和具有与调色剂的带电极性相反的极性的相反极性的颗粒，包括用于分离调色剂或相反极性颗粒的分离装置，以及响应于 图像面积比和打印数量。