公开(公告)号：US20090092919A1

公开(公告)日：2009-04-09

申请号：US12330658

申请日：2008-12-09

申请人： Shuichi Hiroko ,  Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara

发明人： Shuichi Hiroko ,  Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara

IPC分类号： G03G9/083

CPC分类号： G03G9/0835 ,  G03G9/0804 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0839 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a magnetic toner which has superior low-temperature fixing performance and pressure roller anti-staining properties even in various forms of use, has been kept from image defects such as image non-uniformity even during long-time image reproduction and can achieve high-level image quality. In a magnetic toner having toner particles containing at least a binder resin and a magnetic material, the activation energy Ea (kJ/mol) that is determined from a shift factor aT120 in a master curve of the toner, prepared when 120° C. is set as reference temperature, and the activation energy Eb (kJ/mol) that is determined from a shift factor aT150 in a master curve of the toner, prepared when 150° C. is set as reference temperature, satisfy Expression (1), and the Ea is 110 kJ/mol or less: 1.00≦Ea/Eb

摘要翻译： 为了提供即使在各种形式的使用中也具有优异的低温定影性能和耐压辊抗污染性的磁性调色剂，即使在长时间的图像再现中也保持图像不均匀的图像缺陷，并且可以实现高 级图像质量。 在具有至少含有粘合剂树脂和磁性材料的调色剂颗粒的磁性调色剂中，在120℃下制备的调色剂的主曲线中的移动因子aT120确定的活化能Ea（kJ / mol）为 设定为参考温度，并且将由150℃下制备的调色剂的主曲线中的移动因子aT150确定的活化能Eb（kJ / mol）设定为基准温度，满足式（1），并且 Ea为110kJ / mol以下：<？in-line-formula description =“In-Line Formulas”end =“lead”？> 1.00 <= Ea / Eb <1.20（1） 公式描述=“内联公式”end =“tail”？>

公开(公告)号：US07379218B1

公开(公告)日：2008-05-27

申请号：US09407446

申请日：1999-09-29

申请人： Hitoshi Terashima ,  Kunihiko Ohmi ,  Satoshi Ishida ,  Tomohisa Sano ,  Hiroshi Yamagishi ,  Taketoshi Sawada ,  Yoshiki Tsuchiyama ,  Satoshi Kirita ,  Hitoshi Yoshio ,  Terunobu Ohue

发明人： Hitoshi Terashima ,  Kunihiko Ohmi ,  Satoshi Ishida ,  Tomohisa Sano ,  Hiroshi Yamagishi ,  Taketoshi Sawada ,  Yoshiki Tsuchiyama ,  Satoshi Kirita ,  Hitoshi Yoshio ,  Terunobu Ohue

IPC分类号： H04N1/46 ,  H04N1/04 ,  H04N1/21

CPC分类号： H04N1/107 ,  H04N1/00538

摘要： A scanner-equipped apparatus includes a combination of a base unit such as a printer unit, personal computer or word processor incorporating a printer unit and a scanner unit. The printer unit and the scanner unit can operate as automatic sheet feeder type apparatus, respectively. The scanner unit can be used as a handy scanner in the state detached from the base unit. The basic unit and the scanner unit are disposed substantially in upstanding posture in parallel with each other, wherein the scanner unit is removably combined with the base unit so that the scanner unit can be used as the handy scanner. A sheet transporting path for the scanner is formed between confronting surfaces of the base unit and the scanner unit. The sheet feeding mechanism for the scanner unit is so implemented as to be used intact as a driving mechanism for the handy scanner. The scanner-equipped apparatus can be realized inexpensively in a simplified mechanical structure while ensuring enhanced manipulatability.

摘要翻译： 装有扫描仪的装置包括诸如打印机单元，个人计算机或包含打印机单元和扫描仪单元的文字处理器的基本单元的组合。 打印机单元和扫描仪单元可以分别作为自动进纸器装置操作。 扫描仪单元可以用作与基本单元分离的状态的便携式扫描仪。 基本单元和扫描仪单元基本上以彼此平行的直立姿态设置，其中扫描器单元可移除地与基座单元组合，使得扫描仪单元可以用作便利的扫描仪。 用于扫描仪的纸张传送路径形成在基座单元和扫描仪单元的相对表面之间。 用于扫描器单元的片材进给机构被实施为完整使用，作为便携式扫描器的驱动机构。 可以以简化的机械结构廉价地实现装有扫描仪的装置，同时确保增强的可操作性。

公开(公告)号：US08841054B2

公开(公告)日：2014-09-23

申请号：US12254393

申请日：2008-10-20

申请人： Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Shuichi Hiroko

发明人： Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Shuichi Hiroko

IPC分类号： G03G15/08 ,  G03G9/083 ,  G03G9/08

CPC分类号： G03G9/083 ,  G03G9/0827 ,  G03G15/0813

摘要： An image-forming method is provided which can provide stable image density irrespective of use environments and does not cause image defects such as fogging, tailing, or transfer voids, even when being applied to a developing sleeve with a reduced diameter. In the image-forming method, a latent image bearing member and a toner bearing member bearing a magnetic toner on its surface and having inside a unit for generating a magnetic field are placed with a predetermined interval, and an alternating field is applied between the latent image bearing member and the toner bearing member, and an electrostatic latent image borne by the latent image bearing member is developed with the magnetic toner. The toner bearing member has a specific diameter, and the magnetic toner has a specific circularity and a specific compressibility. The total energy of the toner measured with a powder flowability measuring apparatus satisfies a specific value.

摘要翻译： 即使施加到直径减小的显影套筒上，也可以不管使用环境如何，都能够提供稳定的图像浓度的图像形成方法，并且不会引起图像缺陷，如起雾，拖尾或转印空隙。 在图像形成方法中，以预定间隔放置潜像承载部件和在其表面上具有磁性调色剂并且具有用于产生磁场的单元内的调色剂承载部件，并且在潜在的 图像承载部件和调色剂承载部件以及由潜像承载部件承载的静电潜像用磁性调色剂显影。 调色剂承载构件具有特定直径，并且磁性调色剂具有特定的圆形度和特定的可压缩性。 用粉末流动性测量装置测量的调色剂的总能量满足特定值。

公开(公告)号：US20100028795A1

公开(公告)日：2010-02-04

申请号：US12578112

申请日：2009-10-13

申请人： Michihisa Magome ,  Tadashi Dojo ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Shuichi Hiroko

发明人： Michihisa Magome ,  Tadashi Dojo ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Shuichi Hiroko

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/0827 ,  G03G9/083 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793 ,  G03G9/09733

摘要： In a toner containing at least a binder resin, a colorant, an ester compound and a low-melting material, the ester compound is an ester of dipentaerythritol with a carboxylic acid having 18 or more to 25 or less carbon atoms, and, where the melting point of the ester compound is represented by Tm(A) (° C.) and the melting point of the low-melting material is represented by Tm(B) (° C.), the toner satisfies the relationship of: Tm(B)≦Tm(A)+5.

摘要翻译： 在至少含有粘合剂树脂，着色剂，酯化合物和低熔点材料的调色剂中，酯化合物是二季戊四醇与碳原子数为18以上且25以下的羧酸的酯， 酯化合物的熔点由Tm（A）（℃）表示，低熔点材料的熔点由Tm（B）（℃）表示，调色剂满足Tm（ B）（A）+5。

公开(公告)号：US20090130580A1

公开(公告)日：2009-05-21

申请号：US12272976

申请日：2008-11-18

申请人： Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Shuichi Hiroko

发明人： Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Shuichi Hiroko

IPC分类号： G03G9/083

CPC分类号： G03G9/0836 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/09716 ,  G03G9/09725

摘要： In a magnetic toner which has magnetic toner base particles containing at least a binder resin and a magnetic material, and an inorganic fine powder, (i) the magnetic toner has an average circularity of from 0.950 or more to 1.000 or less, (ii) the magnetic toner has a compressibility of 30 or less, and (iii) the magnetic toner contains boron nitride particles having a median diameter (D50) of from 0.5 μm or more to 8.0 μm or less, as the inorganic fine powder in an amount of from 0.05 part by mass or more to 1.00 part by mass or less based on 100 parts by mass of the magnetic toner base particles. This provides a magnetic toner with which stable image density can be achieved without regard to service environment and which do not cause any image defects such as fog.

摘要翻译： 在具有至少含有粘合剂树脂和磁性材料的磁性调色剂基础颗粒和无机细粉末的磁性调色剂中，（i）磁性调色剂的平均圆形度为0.950以上至1.000以下，（ii） 磁性调色剂的压缩率为30以下，（iii）磁性调色剂含有中值粒径（D50）为0.5μm以上至8.0μm以下的氮化硼粒子，作为无机细粉末的量 相对于100质量份的磁性调色剂基础颗粒，为0.05质量份以上至1.00质量份以下。 这提供了一种磁性调色剂，其可以在不考虑使用环境的情况下实现稳定的图像浓度，并且不会引起诸如雾的图像缺陷。

公开(公告)号：US20090047043A1

公开(公告)日：2009-02-19

申请号：US12254393

申请日：2008-10-20

申请人： Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Shuichi Hiroko

发明人： Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Shuichi Hiroko

IPC分类号： G03G15/08 ,  G03G9/083

CPC分类号： G03G9/083 ,  G03G9/0827 ,  G03G15/0813

摘要： An image-forming method is provided which can provide stable image density irrespective of use environments and does not cause image defects such as fogging, tailing, or transfer voids, even when being applied to a developing sleeve with a reduced diameter. In the image-forming method, a latent image bearing member and a toner bearing member bearing a magnetic toner on its surface and having inside a unit for generating a magnetic field are placed with a predetermined interval, and an alternating field is applied between the latent image bearing member and the toner bearing member, and an electrostatic latent image borne by the latent image bearing member is developed with the magnetic toner. The toner bearing member has a specific diameter, and the magnetic toner has a specific circularity and a specific compressibility. The total energy of the toner measured with a powder flowability measuring apparatus satisfies a specific value.

摘要翻译： 即使施加到直径减小的显影套筒上，也可以不管使用环境如何，都能够提供稳定的图像浓度的图像形成方法，并且不会引起图像缺陷，如起雾，拖尾或转印空隙。 在图像形成方法中，以预定间隔放置潜像承载部件和在其表面上具有磁性调色剂并且具有用于产生磁场的单元内的调色剂承载部件，并且在潜在的 图像承载部件和调色剂承载部件以及由潜像承载部件承载的静电潜像用磁性调色剂显影。 调色剂承载构件具有特定直径，并且磁性调色剂具有特定的圆形度和特定的可压缩性。 用粉末流动性测量装置测量的调色剂的总能量满足特定值。

公开(公告)号：US20070072102A1

公开(公告)日：2007-03-29

申请号：US10577148

申请日：2004-10-28

申请人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

发明人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

IPC分类号： G03G9/083

CPC分类号： G03G9/0837 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0838 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a magnetic toner which: enables a stable image density to be obtained irrespective of a use environment; and exhibits excellent low-temperature fixability, little image deterioration upon fixation, high coloring power, and a reduced toner consumption. The present invention relates to a magnetic toner containing at least: a binder resin; and a magnetic body. The binder resin contains a polyester unit. The toner has a weight average particle size of 5.0 to 9.0 μm, a true specific gravity of 1.3 to 1.7 g/cm3, and a saturated magnetization of 20 to 35 Am2/kg in a magnetic field of 796 kA/m. The dielectric loss tangent (tan δ) of the toner satisfies (tan δH−tan δL)/tan δL≦0.20 at 100 kHz.

摘要翻译： 提供一种能够获得稳定的图像浓度而不考虑使用环境的磁性调色剂; 并且具有优异的低温定影性，定影时的图像变差小，着色力高，并且降低了调色剂消耗。 本发明涉及至少含有粘合剂树脂的磁性调色剂; 和磁性体。 粘合剂树脂含有聚酯单元。 调色剂的重均粒径为5.0〜9.0μm，真比重为1.3〜1.7g / cm 3，饱和磁化强度为20〜35Am 2 / > / kg，磁场为796 kA / m。 调色剂的介电损耗角正切（tanδ）满足（tanδ> H> T>ΔL）/tanδL<= 0.20在 100 kHz。

公开(公告)号：US20060121379A1

公开(公告)日：2006-06-08

申请号：US11341415

申请日：2006-01-30

申请人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

发明人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

IPC分类号： G03G9/083

CPC分类号： G03G9/0837 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0838 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a magnetic toner which: enables a stable image density to be obtained irrespective of a use environment; and exhibits excellent low-temperature fixability, little image deterioration upon fixation, high coloring power, and a reduced toner consumption. The present invention relates to a magnetic toner containing at least: a binder resin; and a magnetic body. The binder resin contains a polyester unit. The toner has a weight average particle size of 5.0 to 9.0 μm, a true specific gravity of 1.3 to 1.7 g/cm3, and a saturated magnetization of 20 to 35 Am2/kg in a magnetic field of 796 kA/m. The dielectric loss tangent (tan δ) of the toner satisfies (tan δH−tan δL)/tan δL≦0.20 at 100 kHz.

摘要翻译： 提供一种能够获得稳定的图像浓度而不考虑使用环境的磁性调色剂; 并且具有优异的低温定影性，定影时的图像变差小，着色力高，并且降低了调色剂消耗。 本发明涉及至少含有粘合剂树脂的磁性调色剂; 和磁性体。 粘合剂树脂含有聚酯单元。 调色剂的重均粒径为5.0〜9.0μm，真比重为1.3〜1.7g / cm 3，饱和磁化强度为20〜35Am 2 / > / kg，磁场强度为796 kA / m。 调色剂的介电损耗角正切（tanδ）满足（tanδ> H> T>ΔL）/tanδL<= 0.20在 100 kHz。

公开(公告)号：US08778585B2

公开(公告)日：2014-07-15

申请号：US13817782

申请日：2011-09-12

申请人： Takashi Matsui ,  Michihisa Magome ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

发明人： Takashi Matsui ,  Michihisa Magome ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/08711 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08702 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner with good low-temperature fixability even in light-pressure type fixing units, which causes no contamination of fixing films and provides images having stable image densities and excellent image quality after long-term use. The toner includes a toner particle containing a binder resin, a coloring agent, a release agents (a) and (b) The release agent (a) is a monofunctional or bifunctional ester wax; the release agent (b) is a hydrocarbon wax; a solubility of the release agent (a) into the binder resin is higher than that of the release agent (b). When tetrahydrofuran-soluble components of the toner are subjected to GPC, a proportion of components having a molecular weight of 500 or less is 2.5 area % or less. When the tetrahydrofuran-soluble components at 25° C. are subjected to SEC-MALLS, a weight-average molecular weight Mw thereof is 5,000-100,000, and the Mw and the radius of gyration Rw thereof satisfy 5.0×10−4≦Rw/Mw≦1.0×10−2.

摘要翻译： 即使在轻压型固定单元中也具有良好的低温定影性的调色剂，其不会造成定影膜的污染，并且在长期使用后提供具有稳定图像密度和优异图像质量的图像。 调色剂包括含有粘合剂树脂，着色剂，脱模剂（a）和（b）的调色剂颗粒。脱模剂（a）是单官能或双官能酯蜡; 脱模剂（b）是烃蜡; 脱模剂（a）在粘合剂树脂中的溶解度高于脱模剂（b）的溶解度。 当调色剂的四氢呋喃可溶成分进行GPC时，分子量为500以下的成分的比例为2.5面积％以下。 当25℃的四氢呋喃可溶组分进行SEC-MALLS时，其重均分子量Mw为5,000-100,000，Mw和其回转半径Rw满足5.0×10-4＆lt; Mw＆nlE; 1.0×10-2。

公开(公告)号：US08518620B2

公开(公告)日：2013-08-27

申请号：US10577148

申请日：2004-10-28

申请人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

发明人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

IPC分类号： G03G9/083

CPC分类号： G03G9/0837 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0838 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a magnetic toner which: enables a stable image density to be obtained irrespective of a use environment; and exhibits excellent low-temperature fixability, little image deterioration upon fixation, high coloring power, and a reduced toner consumption. The present invention relates to a magnetic toner containing at least: a binder resin; and a magnetic body. The binder resin contains a polyester unit. The toner has a weight average particle size of 5.0 to 9.0 μm, a true specific gravity of 1.3 to 1.7 g/cm3, and a saturated magnetization of 20 to 35 Am2/kg in a magnetic field of 796 kA/m. The dielectric loss tangent (tan δ) of the toner satisfies (tan δH−tan δL)/tan δL≦0.20 at 100 kHz.

摘要翻译： 提供一种能够获得稳定的图像浓度而不考虑使用环境的磁性调色剂; 并且具有优异的低温定影性，定影时的图像变差小，着色力高，并且降低了调色剂消耗。 本发明涉及至少含有粘合剂树脂的磁性调色剂; 和磁体。 粘合剂树脂含有聚酯单元。 调色剂在796kA / m的磁场中的重均粒径为5.0〜9.0μm，真比重为1.3〜1.7g / cm 3，饱和磁化强度为20〜35Am 2 / kg。 调色剂的介电损耗角正切（tanδ）在100kHz满足（tanδH-tanδL）/tanδL.20.20。