公开(公告)号：US4100087A

公开(公告)日：1978-07-11

申请号：US758423

申请日：1977-01-11

申请人： Hiroshi Takayama ,  Tatsuo Aizawa

发明人： Hiroshi Takayama ,  Tatsuo Aizawa

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G9/14

CPC分类号： G03G9/08793 ,  G03G9/0837 ,  G03G9/0839 ,  G03G9/08706 ,  G03G9/08724 ,  G03G9/08753 ,  G03G9/08782 ,  G03G9/09741 ,  Y10S430/104

摘要： A pressure fixing developer for electrostatic photography comprising a finely divided magnetic material and a binder as effective components and consisting essentially of substantially spherical particles of said finely divided magnetic material dispersed in a solid medium of said binder, said binder medium being composed of a resin composition comprising (a) 25 to 65% by weight based on the total binder of a hydrogenated styrene resin, (b) 5 to 45% by weight based on the total binder of a wax having a melting point of at least 60.degree. C. and (c) 10 to 30% by weight based on the total binder of a copolymer of anlefin with a carbonyl group-containing, ethylenically unsaturated monomer.

摘要翻译： 一种用于静电摄影的压力定影显影剂，包括细分磁性材料和粘合剂作为有效成分，并且基本上由分散在所述粘合剂的固体介质中的所述细碎磁性材料的基本上球形的颗粒组成，所述粘合剂介质由树脂组合物 其包含（a）基于氢化苯乙烯树脂的总粘合剂的25至65重量％，（b）基于熔点为至少60℃的蜡的总粘合剂为5至45重量％，以及 （c）基于烯烃与含羰基的烯属不饱和单体的共聚物的总粘合剂的10至30重量％。

公开(公告)号：US4264698A

公开(公告)日：1981-04-28

申请号：US732759

申请日：1976-10-15

申请人： Hiroshi Takayama ,  Tatsuo Aizawa

发明人： Hiroshi Takayama ,  Tatsuo Aizawa

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/09 ,  G03G9/10 ,  G03G9/14

CPC分类号： G03G9/0837 ,  G03G9/0904 ,  G03G9/10 ,  Y10T428/2998

摘要： A developer for electrostatic photography consisting essentially of a dry blend of (A) substantially spherical fixing magneto-sensitive particles of a composition comprising a binder medium and a fine powder of a magnetic material dispersed in the binder medium, the substantially spherical particles (A) have on their surfaces fine convexities and concavities formed by spraying a dispersion of the composition into a drying atmosphere and have a particle size of 2 to 44 microns, and (B) flowability- and electric resistance-controlling fine particles having a volume resistivity not higher than 10.sup.12 .omega.-cm and a particle size not larger than 1/10 of the particle size of the substantially spherical particles (A). The fine particles (B) are distributed predominantly on the surface portion of said spherical particles (A). The mixing weight ratio of (A):(B) is in the range of from 1000:1 to 50:1.

摘要翻译： 用于静电摄影的显影剂，其基本上由（A）基本上球形的包含粘合剂介质的组合物的固体感磁性颗粒和分散在粘合剂介质中的磁性材料的细粉末的干混合物组成，基本上为球形的颗粒（A） 在其表面上具有通过将组合物的分散体喷雾到干燥气氛中并具有2至44微米的粒度而形成的细小的凸起和凹陷，以及（B）体积电阻率不高的流动性和电阻控制微粒 大于1012Ω·cm，粒径不大于基本上球形颗粒（A）的粒度的1/10。 细颗粒（B）主要分布在所述球形颗粒（A）的表面部分上。 （A）：（B）的混合重量比在1000:1〜50:1的范围内。

公开(公告)号：US4082681A

公开(公告)日：1978-04-04

申请号：US628823

申请日：1975-11-04

申请人： Hiroshi Takayama ,  Tatsuo Aizawa

发明人： Hiroshi Takayama ,  Tatsuo Aizawa

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/097 ,  G03G9/10 ,  G03G9/14

CPC分类号： G03G9/10 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/0832 ,  G03G9/0833 ,  G03G9/0838 ,  G03G9/09708 ,  G03G9/09725 ,  Y10S430/104

摘要： A developer for electrostatic photography comprising as indispensable components a fine powder of a magnetic material and a binder resin, said developer consisting essentially of a dry blend of (A) substantially spherical particles of a composition comprising a medium of said binder resin and said fine powder dispersed in the binder resin medium and (B) a finely divided solid conducting agent having a particle size smaller than 1/10 of the size of the spherical particles (A), said spherical particles (A) having a crater-like rough surface, said finely divided solid conducting agent (B) being stuck to said spherical particles (A) through said crater-like rough surfaces thereof, and the volume resistivity of said dry blend being not higher than 1 .times. 10.sup.11 .OMEGA.-cm.

公开(公告)号：US4265992A

公开(公告)日：1981-05-05

申请号：US929411

申请日：1978-07-31

申请人： Toshihiro Kouchi ,  Hiroshi Takayama ,  Tatsuo Aizawa

发明人： Toshihiro Kouchi ,  Hiroshi Takayama ,  Tatsuo Aizawa

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/14

CPC分类号： G03G9/0839 ,  G03G9/0833 ,  G03G9/08704 ,  G03G9/08706 ,  G03G9/08748 ,  G03G9/08775

摘要： In a one-component type developer for electrophotography consisting essentially of a dry blend of fixing magneto-sensitive particles and flowability- and electric resistance-controlling fine particles, when an aromatic vinyl resin and/or an acrylic resin is used as a binder resin for the magneto-sensitive particles in combination with a low molecular weight olefin resin, the magneto-sensitive particles are much improved in the property of holding the flowability- and electric resistance-controlling fine particles on the surfaces thereof. Accordingly, these fine particles cannot be substantially separated from the magneto-sensitive particles under agitation conditions, development conditions and fixing conditions. As a result, contamination of the interior of a copying machine, especially an optical system, can be completely prevented, and also contamination of the background can be completely prevented. Further, the resulting fixed images have a very high resistance to friction and abrasion, and troubles such as blurring and flow of the image are not caused at all.

公开(公告)号：US4108786A

公开(公告)日：1978-08-22

申请号：US641285

申请日：1975-12-16

申请人： Hiroshi Takayama ,  Tatsuo Aizawa

发明人： Hiroshi Takayama ,  Tatsuo Aizawa

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/14

CPC分类号： G03G9/0825 ,  G03G9/0827 ,  G03G9/083 ,  G03G9/0838 ,  Y10S430/104

摘要： A magnetic toner for electrostatic photography consisting essentially of spherical particles of a composition comprising a fine powder of a magnetic material having an average particle size not exceeding 1000 m.mu. and being dispersed in a binder resin, said powdery magnetic material being present in an amount of 25 to 75% by weight based on the composition, spherical particles of said composition having such a particle size distribution that particles having a particle size larger than 44 .mu. occupy up to 10% of the total particles and particles having a particle size smaller than 2 .mu. occupy up to 10% of the total particles, wherein said fine powder of the magnetic material is distributed predominantly in the surface layer portion of each spherical particle and said spherical particles have a volume resistivity not higher than 1 .times. 10.sup.11 .OMEGA.-cm as measured in a magnetic field of about 680 gauss under a voltage of 1000 V.

摘要翻译： 一种用于静电摄影的磁性调色剂，其基本上由包括平均粒度不超过1000μm的磁性材料的细粉末并分散在粘合剂树脂中的组合物的球形颗粒组成，所述粉末状磁性材料以 基于组合物为25〜75重量％，所述组合物的球形粒子具有粒径分布，粒径大于44μm的粒子占总粒子的10％，粒径小于2的粒子 mu占总粒子的10％，其中所述磁性材料的细粉末主要分布在每个球形颗粒的表面层部分中，并且所测量的球形颗粒的体积电阻率不高于1×1011欧姆 - 厘米 在1000V的电压下在约680高斯的磁场中。

公开(公告)号：US4199356A

公开(公告)日：1980-04-22

申请号：US544502

申请日：1975-01-27

申请人： Shoji Matsumoto ,  Hitoshi Nishihama ,  Tatsuo Aizawa

发明人： Shoji Matsumoto ,  Hitoshi Nishihama ,  Tatsuo Aizawa

IPC分类号： G03G15/16 ,  G03G7/00 ,  G03G13/16

CPC分类号： G03G13/16 ,  Y10S430/138

摘要： A transfer sheet on which toner images free of broadening of edge portions and having sharp contours can be transferred even in the electrophotography or electrostatic printing of the transfer type using conductive or semiconductive toners, i.e., magnetic toners, is disclosed. This transfer sheet is characterized in that a conductive or semiconductive toner-receiving face having a volume specific resistance of at least 3.times.10.sup.13 .OMEGA.-cm is formed on at least one surface of a substrate of the transfer sheet.

摘要翻译： 即使在使用导电或半导体调色剂（即磁性调色剂）的转印型的电子照相或静电印刷中也可以转印调色剂图像没有边缘部分变宽并且具有尖锐轮廓的转印纸。 该转印片的特征在于，在转印片的基材的至少一个表面上形成体积电阻率为至少3×10 13欧姆 - 厘米的导电或半导体调色剂接收面。

公开(公告)号：US4197003A

公开(公告)日：1980-04-08

申请号：US929812

申请日：1978-07-31

申请人： Tetsuya Okada ,  Tadashi Umeda ,  Masahiro Murakami ,  Tatsuo Aizawa

发明人： Tetsuya Okada ,  Tadashi Umeda ,  Masahiro Murakami ,  Tatsuo Aizawa

IPC分类号： G03G15/00

CPC分类号： G03G15/60 ,  G03G2215/00189

摘要： A switch device for an electrostatic photographic copying machine having a reciprocally movable member reciprocating from a rest position and returning thereto during each copying operation of the copying machine, and a drive driving the movable member. The switch device has an actuating member movable relative to the copying machine body and is toward a non-operating position. An operating member engages with the actuating member for moving it to an operating position. A retaining device engages the actuating member for holding the actuating member in the operating position after it has been moved to the operating position. A switch actuating the drive for the movable member is engageable by the actuating member for actuating the drive means when the movable member is in the operating position and actuating the switch for deactuating the drive when the movable member is in the non-operating position. A protuberant member movable with the reciprocally movable member engages the retaining device just prior to the return of the reciprocally movable member to the rest position after a reciprocating movement thereof for disengaging the retaining device from the actuating member, whereby when the retaining means is disengaged the actuating member is free to be moved to the non-operating position for actuating the switch for deactuating the drive.

摘要翻译： 一种用于静电复印机的开关装置，具有从静止位置往复移动的往复运动件，并在复印机的每次复印操作期间返回到其上，以及驱动可动件的驱动器。 开关装置具有可相对于复印机主体移动并且朝向非操作位置的致动构件。 操作构件与致动构件接合以将其移动到操作位置。 保持装置接合致动构件，用于在将致动构件移动到操作位置之后将致动构件保持在操作位置。 致动用于可动构件的驱动器的开关可由致动构件接合，用于当可移动构件处于操作位置时致动驱动装置，并且当可移动构件处于非操作位置时致动该开关用于停止驱动。 可往复运动的构件可移动的突起构件刚好在往复运动之后将可往复运动构件返回到静止位置，从而使保持装置与致动构件脱离接合，从而当保持装置脱离时， 致动构件可自由移动到非操作位置，用于致动开关以使驱动器停止。

公开(公告)号：US4126100A

公开(公告)日：1978-11-21

申请号：US819163

申请日：1977-07-26

申请人： Hitoshi Nishihama ,  Katsuhiko Gotoda ,  Minoru Motomura ,  Takanobu Nakajima ,  Tatsuo Aizawa

发明人： Hitoshi Nishihama ,  Katsuhiko Gotoda ,  Minoru Motomura ,  Takanobu Nakajima ,  Tatsuo Aizawa

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G15/082

摘要： An apparatus for developing an electrostatic latent image formed on the surface of an electrostatic latent image-bearing material by applying a powdery developer, wherein means are provided for bringing the surface of a developer-retaining member retaining a layer of the powdery developer thereon into rolling contact with the surface of the image-bearing material in such a relation that a reservoir zone of the developer is formed at least upstream of the zone of rolling contact between the two surfaces, and means are provided for physically disturbing the developer in the reservoir zone to cause the developer to make an irregular motion.

摘要翻译： 一种用于通过涂覆粉末显影剂在静电潜像承载材料的表面上形成的静电潜像显影的装置，其中提供了用于使保持粉状显影剂层的显影剂保持构件的表面滚动到其上的装置， 与图像承载材料的表面接触，使得显影剂的储存区域至少形成在两个表面之间的滚动接触区域的至少上游，并且提供用于物理地扰乱储存区域中的显影剂的装置 导致显影剂发生不正常的运动。

公开(公告)号：US4123271A

公开(公告)日：1978-10-31

申请号：US744450

申请日：1976-11-23

申请人： Akira Fushida ,  Hiroichi Morikawa ,  Toshihiro Shinsho ,  Takaaki Miyazaki ,  Tatsuo Aizawa

发明人： Akira Fushida ,  Hiroichi Morikawa ,  Toshihiro Shinsho ,  Takaaki Miyazaki ,  Tatsuo Aizawa

IPC分类号： G03G5/04 ,  G03G7/00

CPC分类号： G03G5/04

摘要： A process for preparing a photosensitive material for electrostatic photography having an improved memory resistance, which comprises a photoconductive layer on an electrically conductive substrate, the photoconductive layer comprising (1) a finely divided inorganic photoconductor, (2) 5 to 50 parts by weight, per 100 parts by weight of the photoconductor of an electrically insulating organic synthetic resin binder having a specific resistance of at least 10.sup.14 ohm-cm, and (3) 0.001 to 1 % by weight, based on the photoconductor, of at least one photo-memory erasing compound selected from alkali metal dichromates, which process comprises forming the photoconductive layer by applying a coating composition to the electrically conductive substrate at a coating weight of 5 to 50 g/m.sup.2, the coating composition comprising the photo-memory erasing compound, the photoconductor, the resin binder, an aromatic solvent in which the resin binder is dissolved or dispersed, an a polar solvent for the photo-memory erasing compound, the polar solvent being soluble in the aromatic solvent and being selected such that the photo-memory erasing compound is soluble in said polar solvent.

摘要翻译： 一种用于制备具有改进的记忆电阻的静电摄影用感光材料的方法，其包括导电性基板上的光电导层，所述光电导层包含（1）细碎无机感光体，（2）5〜50重量份， 每100重量份电阻率为至少1014欧姆 - 厘米的电绝缘有机合成树脂粘合剂的光电导体，和（3）基于光电导体的0.001至1重量％的至少一个光致抗蚀剂， 记忆擦除化合物，选自碱金属重铬酸盐，该方法包括通过以5至50g / m 2的涂层重量将涂料组合物施涂到导电基材上形成光电导层，该涂料组合物包含光记录擦除化合物， 光导体，树脂粘合剂，其中溶解或分散树脂粘合剂的芳族溶剂，ph的极性溶剂 所述极性溶剂可溶于所述芳族溶剂，并且选择为使得所述光记忆擦除化合物可溶于所述极性溶剂中。

公开(公告)号：US4045165A

公开(公告)日：1977-08-30

申请号：US623327

申请日：1975-10-17

申请人： Takanobu Nakajima ,  Toshikazu Matsui ,  Tatsuo Aizawa

发明人： Takanobu Nakajima ,  Toshikazu Matsui ,  Tatsuo Aizawa

IPC分类号： G03G15/20 ,  F27B9/28

CPC分类号： G03G15/2025

摘要： A contact heat fixing device which comprises a driving heated roller having a heating mechanism disposed in the interior thereof and a surface coated with an offset preventing material, a press roller which is rotated in intimate contact under pressure with said heat roller, a vessel for containing therein an offset preventing liquid and a feed mechanism for supplying the offset preventing liquid to the heated roller from the vessel, fixation of a toner image being accomplished by the passage of a support having the toner image thereon through the nip position of the heated roller and the press roller, wherein said feed mechanism includes an applicator for applying the offset preventing liquid to the surface of the heated roller and supply means for supplying the offset preventing liquid from the vessel to the applicator, said applicator being arranged so that it can shift between a position (PI) where it has a pressing contact with said supply means and a position (P2) where it has a pressing contact with said heated roller, in such a manner that the offset preventing liquid is supplied to said applicator when it is at said position (P1), the applicator is moved from said position (P1) to the position (P2) synchronously with feeding of said support to have temporary contact with the surface of the heated roller and apply thereto the offset preventing liquid, and the applicator is then returned to the position (P2).

摘要翻译： 一种接触式热定影装置，包括：驱动加热辊，其具有设置在其内部的加热机构和涂覆有防偏移材料的表面;加压辊，其在所述加热辊的压力下紧密接触地旋转;容纳容器 其中具有偏移防止液体和用于将防偏移液体从容器供应到加热辊的进给机构，通过其上具有调色剂图像的支撑件通过加热辊的辊隙位置来实现调色剂图像的固定，以及 压辊，其中所述进给机构包括用于将偏置防止液体施加到加热辊的表面的供给器和用于将防偏移液体从容器供应到施加器的供应装置，所述施加器布置成使得其可以在 与所述供给装置进行按压接触的位置（PI）以及具有所述供给装置的位置（P2） 与所述加热辊按压接触，使得当偏移防止液体处于所述位置（P1）时，防偏移液体被供应到所述施加器，施加器与进给同步地从所述位置（P1）移动到位置（P2） 的所述支撑件与加热辊的表面临时接触并将其施加到防偏移液体上，然后将施加器返回到位置（P2）。