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    • 51. 发明授权
    • Charge controller, toner binder composition and electrophotographic toner
    • 充电控制器,调色剂粘合剂组合物和电子照相调色剂
    • US5460915A
    • 1995-10-24
    • US261034
    • 1994-06-14
    • Hideo NakanishiTohru OhamaHiroyuki IkedaNaoki TakaseAkira Kodani
    • Hideo NakanishiTohru OhamaHiroyuki IkedaNaoki TakaseAkira Kodani
    • G03G9/087G03G9/097
    • G03G9/08786G03G9/08788G03G9/08791G03G9/08795G03G9/08797Y10S430/105
    • A charge controller for an electrophotographic toner is disclosed which comprises a graft or block copolymer comprising:(a) a polymer moiety having an alkyl group containing 6-50 carbon atoms and a carboxyl group, said moiety being selected from the group consisting of: a moiety of a polymer or a copolymer containing at least 5 mol. % of monomer units of a monoalkyl ester of an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid, containing 6-50 carbon atoms in the alkyl group; and a moiety of a copolymer containing 5-75 mol. % of monomer units of a carboxylic group-containing .alpha.,.beta.-ethylenically unsaturated monomer, and 6-80 mol. % of monomer units of an ethylenically unsaturated monomer having an alkyl group containing 6-50 carbon atoms; and(b) a polymer moiety, bound graft-wise or block-wise thereto, said moiety (b) being selected from the group consisting of a styrenic polymer moiety, and a polyester moiety.The charge controller of the present invention can be used for an electrophotographic toner charging negatively by combining it with a toner binder and a colorant. As a charge controller of the invention has an excellent dispersing property in the toner, the toner is excellent in such properties as the electrostatic charge, the charging rate and transparency in using a color toner.
    • 公开了一种用于电子照相调色剂的电荷控制器,其包含接枝或嵌段共聚物,其包含:(a)具有含有6-50个碳原子的烷基和羧基的聚合物部分,所述部分选自: 聚合物或共聚物的部分含有至少5mol。 %烷基中含有6-50个碳原子的α,β-烯属不饱和二羧酸的单烷基酯的单体单元% 和含有5-75mol的共聚物的部分。 %的含羧基的α,β-烯属不饱和单体的单体单元,和6-80mol。 %具有含有6-50个碳原子的烷基的烯属不饱和单体的单体单元%; 和(b)聚合物部分,其接枝或嵌段结合,所述部分(b)选自苯乙烯聚合物部分和聚酯部分。 本发明的电荷控制器可以通过将其与调色剂粘合剂和着色剂组合而用于负电荷的电子照相调色剂。 作为本发明的电荷控制器,在调色剂中具有优异的分散性,因此调色剂在使用彩色调色剂时的静电电荷,充电速率和透明度等性能优异。
    • 54. 发明授权
    • Laser beam scanner and its fabricating method
    • 激光束扫描器及其制造方法
    • US4957336A
    • 1990-09-18
    • US269412
    • 1988-11-10
    • Shin-ya HasegawaMasayuki KatoFumio YamagishiHiroyuki IkedaTakefumi Inagaki
    • Shin-ya HasegawaMasayuki KatoFumio YamagishiHiroyuki IkedaTakefumi Inagaki
    • G02B26/10
    • G02B26/106Y10S359/90
    • A high precision laser beam scanner is provided which is able to shape a beam generated by a laser, suppress the influence of jitter of a scanning beam due to mode hopping of a semiconductor laser, and reduce aberration of the scanning beam. A beam source generates a semiconductor laser beam, which is diffracted by a rotary hologram, forming a scanning beam on a surface to be scanned. An aberration correcting stationary hologram is disposed between the beam source and the rotary hologram. The stationary hologram is constructed with an object wave and a reference wave, which interfere on a stationary hologram substrate subject so that an aberration of the scanning beam on the surface to be scanned shall be corrected. The object wave is a spherical wave which has an aberration, a wave length shorter than that of the semiconductor laser beam, and an incident angle which is not vertical but is inclined with respect to the stationary hologram substrate. A method for fabricating the laser beam scanner is also provided.
    • 提供了能够对由激光产生的光束进行成形的高精度激光束扫描器,抑制由于半导体激光器的跳跃而导致的扫描光束的抖动的影响,并且减小扫描光束的像差。 光束源产生通过旋转全息图衍射的半导体激光束,在要扫描的表面上形成扫描光束。 像差校正固定全息图设置在光束源和旋转全息图之间。 固定全息图由对象波和参考波构成,其干涉固定的全息图基板对象,使得要扫描的表面上的扫描光束的像差被校正。 对象波是具有像差,波长短于半导体激光束的像差的球面波,并且不是垂直但相对于静止全息图基板倾斜的入射角。 还提供了一种用于制造激光束扫描器的方法。