Electro-photographic apparatus having transfer bias control
    133.
    发明授权
    Electro-photographic apparatus having transfer bias control 失效
    具有转印偏压控制的电子照相设备

    公开(公告)号:US5761568A

    公开(公告)日:1998-06-02

    申请号:US773837

    申请日:1996-12-27

    CPC classification number: G03G15/1675 G03G2215/00767

    Abstract: An electrophotographic imaging apparatus includes a toner image holding body, a transcription unit for transcribing the toner image on the toner image holding body onto a recording medium, and a conveyor for conveying a recording medium toward the toner image holding body and transcription unit. A judging device will judge whether printing is of a first page or not and if it is decided that printing is to be performed on a first page, a first measuring device will measure the electrical characteristic of the toner image holding body prior to the feeding of a recording medium and a transcription voltage will be set depending of this measured result. Thereafter, the recording medium will be conveyed toward the transcription unit where the electrical characteristics of the non-printing region on the recording medium will be measured via a second measuring device and the transcription voltage will be further adjusted. If it is judged that the recording sheet is not the first sheet, only the second measuring and adjusting will be performed. In this manner, transcribing of a toner image can always be performed regardless of the kind of paper being used and/or changes in the environment (temperature, humidity) and a high transcribing efficiency can be attained.

    Abstract translation: 电子照相成像设备包括调色剂图像保持体,用于将调色剂图像保持体上的调色剂图像转印到记录介质上的转印单元和用于向记录介质传送调色剂图像保持体和转录单元的传送器。 判断装置将判断打印是否是第一页,如果确定要在第一页上执行打印,则第一测量装置将在馈送之前测量调色剂图像保持体的电特性 将根据该测量结果设置记录介质和转录电压。 此后,记录介质将被传送到记录介质上的非打印区域的电特性将经由第二测量装置测量的转录单元,并且转录电压将被进一步调整。 如果判断记录纸不是第一张纸,则仅进行第二次测量和调整。 以这种方式,总是可以执行调色剂图像的转录,而不管使用的纸张的种类和/或环境变化(温度,湿度)和高转录效率如何。

    Image forming apparatus having contact charger
    134.
    发明授权
    Image forming apparatus having contact charger 失效
    具有接触式充电器的图像形成装置

    公开(公告)号:US5576808A

    公开(公告)日:1996-11-19

    申请号:US554452

    申请日:1995-11-07

    CPC classification number: G03G15/0216

    Abstract: An image forming apparatus includes a charging member in contact with a photosensitive member for applying a charging voltage at least containing an a.c. component, a laser beam irradiator having a polygon mirror to form an electrostatic latent image and a developing unit for developing the latent image into a visible image and collecting residual developer remaining on the surface of the photosensitive member after the visual image is transferred to a transfer material. The number of revolutions Fp(rps) of the irradiator polygon mirror, the frequency Fb(Hz) of the a.c. component to be applied to the contact charging unit and the system velocity Vp(cm/sec) have a correlation so determined as to meet the requirement of:.vertline.Fp-2.times.Fb.vertline. Fp/2.

    Abstract translation: 图像形成装置包括与感光构件接触的充电构件,用于施加至少包含交流电的充电电压。 具有多棱镜以形成静电潜像的激光束照射器和用于将潜像显影成可见图像的显影单元,以及在将视觉图像转印到转印体之后收集剩余在感光构件表面上的剩余显影剂 材料。 照射器多面镜的转数Fp(rps),a.c.的频率Fb(Hz)。 应用于接触充电单元的分量和系统速度Vp(cm / sec)具有确定为满足以下要求的相关性:| Fp-2xFb | Fp / 2。

    Image forming apparatus having a contact type charging device
    135.
    发明授权
    Image forming apparatus having a contact type charging device 失效
    具有接触式充电装置的图像形成装置

    公开(公告)号:US5576807A

    公开(公告)日:1996-11-19

    申请号:US554268

    申请日:1995-11-06

    CPC classification number: G03G15/0216

    Abstract: An image forming apparatus having a rotatable photosensitive member a charging device for charging a surface of the photosensitive member prior to forming an electrophotographic latent image and a power source for applying a charge voltage which includes at least AC component to the charging device. The charging device includes a rotatable brush member which is formed by implanting piles formed by brush fibers on a base member and provided in contact with the photosensitive member. The photosensitive member and charging device and power source are provided to satisfy the following condition:V.sub.D =K.vertline.f.sub.AC -f.sub.p .vertline.(0

    Abstract translation: 一种图像形成装置,具有可旋转的感光部件,用于在形成电子照相潜像之前对感光部件的表面充电的充电装置和用于向充电装置施加至少包括AC分量的充电电压的电源。 充电装置包括可旋转的刷构件,其通过将由刷纤维形成的桩植入基底构件并且与感光构件接触而形成。 提供感光元件和充电装置和电源以满足以下条件:VD = K | fAC-fp |(0

    Thermoplastic resin composition
    136.
    发明授权
    Thermoplastic resin composition 失效
    热塑性树脂组合物

    公开(公告)号:US5548013A

    公开(公告)日:1996-08-20

    申请号:US339667

    申请日:1994-11-14

    Abstract: The thermoplastic resin composition of the present invention contains(a) either a graft resin composition (J) obtained by graft polymerizing an unsaturated carboxylic acid or a derivative thereof onto a mixture of a polypropylene (C) and a rubbery substance (H), or a graft resin composition (K) obtained by graft polymerizing an unsaturated carboxylic acid or a derivative thereof and an unsaturated aromatic monomer onto a mixture of a polypropylene (C) and a rubbery substance (H),(b) a saturated polyester resin (F),(c) an epoxy group-containing copolymer (G), and(d) a polypropylene (C);which thermoplastic resin composition is suitably used in the fields where high level of heat resistance, impact resistance, and especially low-temperature impact resistance are required.

    Abstract translation: 本发明的热塑性树脂组合物含有(a)通过将不饱和羧酸或其衍生物接枝聚合到聚丙烯(C)和橡胶状物质(H)的混合物上而获得的接枝树脂组合物(J),或 通过将不饱和羧酸或其衍生物和不饱和芳族单体接枝聚合到聚丙烯(C)和橡胶状物质(H)的混合物上得到的接枝树脂组合物(K),(b)饱和聚酯树脂 ),(c)含环氧基的共聚物(G)和(d)聚丙烯(C); 该热塑性树脂组合物适用于需要高耐热性,耐冲击性,特别是低温耐冲击性的领域。

    Thermoplastic resin composition
    137.
    发明授权
    Thermoplastic resin composition 失效
    热塑性树脂组合物

    公开(公告)号:US5300568A

    公开(公告)日:1994-04-05

    申请号:US667408

    申请日:1991-04-08

    CPC classification number: C08L23/04 C08K5/32 C08K5/34 C08L71/12 Y10S525/905

    Abstract: A thermoplastic resin composition which comprises 100 parts by weight of a composition comprising 95-5% by weight of at least one polyolefin-resin (A) selected from homopolymers of ethylene or .alpha.-olefin or copolymers thereof and these homopolymers or copolymers modified with a polyfunctional compound (E) and/or an unsaturated monomer (L) and 5-95% by weight of at least one polyphenylene-ether-resin (B) selected from polyphenylene ether, modified polyphenylene ether with the above (E) and/or (L) and a composition comprising the polyphenylene or modified polyphenylene ether and an aromatic vinyl polymer resin (M) and 0.001-10 parts by weight of a dinitrodiamine (D) of the following formula (I). ##STR1## (wherein X represents a divalent chain aliphatic group, a cyclic aliphatic group or an aromatic group which may contain a halogen or an oxygen atom, R.sup.1 represents a hydrogen atom, a chain aliphatic group, a cyclic aliphatic group or an aromatic group and when both of X and R.sup.1 are chain aliphatic groups, the nitrogen atoms may further bond each other to form a ring through X and R.sup.1 ; R.sup.2 and R.sup.3 are independently a hydrogen atom or an alkyl group of 1-12 carbon atoms and R.sup.2 and R.sup.3 may bond to form a ring).

    Abstract translation: PCT No.PCT / JP90 / 00759 Sec。 371日期:1991年4月8日 102(e)日期1991年4月8日PCT Filed 1990年6月11日PCT公布。 WO91 / 19762 PCT出版物 日本1991年12月26日。一种热塑性树脂组合物,其包含100重量份的组合物,其包含95-5重量%的至少一种选自乙烯或(α-)α-烯烃或共聚物的均聚物的聚烯烃树脂(A) 和由多官能化合物(E)和/或不饱和单体(L)改性的这些均聚物或共聚物和5-95重量%的至少一种选自聚苯醚,改性聚苯醚的聚苯醚树脂(B) 与上述(E)和/或(L)和包含聚亚苯基或改性聚苯醚和芳族乙烯基聚合物树脂(M)的组合物和0.001-10重量份下式(I)的二硝基二胺(D) )。 (*化学结构*)(I)(其中X表示可以含有卤素或氧原子的二价链脂肪族基团,环状脂肪族基团或芳香族基团,R 1表示氢原子,链状脂肪族基团,环状 脂族基团或芳香族基团,当X和R 1均为链状脂族基团时,氮原子可以进一步通过X和R 1彼此键合形成环; R2和R3独立地为氢原子或1- 12个碳原子,R2和R3可以键合形成环)。

    Thermoplastic elastomer composition and process for producing same
    138.
    发明授权
    Thermoplastic elastomer composition and process for producing same 失效
    热塑性弹性体组合物及其制备方法

    公开(公告)号:US5260366A

    公开(公告)日:1993-11-09

    申请号:US742499

    申请日:1991-08-05

    Abstract: A thermoplastic elastomer composition superior in moldability and appearance, little in anisotropy of mechanical properties, especially, tensile strength and retaining low temperature impact strength, is obtained by previously melt-kneading an intermediate composition comprising (a) 100 parts by weight of a selectively hydrogenated block copolymer which has at least two mono-alkenyl or mono-alkenylidene aromatic hydrocarbon polymer blocks A having a number-average molecular weight of 25,000-35,000 and at least one partially or completely hydrogenated aliphatic conjugated diene hydrocarbon polymer block B having a number-average molecular weight of 100,000-150,000, (b) 50-150 parts by weight of an extender oil and (c) 0-50 parts by weight of polypropylene I, then adding, to the kneaded intermediate composition, (d) polypropylene II containing at least 35% by weight of a propylene-ethylene block copolymer having a melt flow rate of 10-30 g/10 min. and an ethylene content of 3-15% by weight in such amount that total amount of polypropylene I plus polypropylene II is 200-400 parts by weight per 100 parts by weight of block copolymer (a) and then further melt kneading the mixture. Further addition of a filler to the composition can afford a thermoplastic elastomer composition of small linear expansion coefficient with retaining the above properties.

    Abstract translation: 通过预先将包含(a)100重量份的选择性氢化的中间体组合物熔融捏合,得到成型性和外观优异的机械性能,特别是拉伸强度和保持低温冲击强度几何异形性的热塑性弹性体组合物 嵌段共聚物,其具有至少两个数均分子量为25,000-35,000的单烯基或单亚烯基芳族烃聚合物嵌段A和至少一种部分或完全氢化的脂族共轭二烯烃聚合物嵌段B,其具有数均分子量 分子量为100,000-150,000,(b)50-150重量份的增量油和(c)0-50重量份的聚丙烯I,然后向捏合的中间体组合物中加入(d)含有 至少35重量%的熔体流动速率为10-30克/ 10分钟的丙烯 - 乙烯嵌段共聚物。 并且乙烯含量为3-15重量%,其量使得每100重量份嵌段共聚物(a)的聚丙烯I加聚丙烯II的总量为200-400重量份,然后进一步熔融捏合该混合物。 向组合物中进一步添加填料可以提供具有小的线膨胀系数的热塑性弹性体组合物,并保持上述性能。

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