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    • 4. 发明公开
    • Highlight color imaging apparatus
    • Bildherstellungsgerätmit Hervorhebung der Farben。
    • EP0401437A1
    • 1990-12-12
    • EP89305688.7
    • 1989-06-06
    • XEROX CORPORATION
    • Allen, William M. Jr.Parker, Delmer G.Stark, Howard M.
    • G03G13/01G03G13/09G03G21/00
    • G03G13/09G03G13/013G03G21/0005
    • Tri-level highlight color imaging apparatus and cleaner apparatus therefor. Improved cleaning of a charge retentive surface is accomplished through matching the triboelectric properties of the positive and negative toners (TONER B and TONER A) and their associated carriers (CARRIER B and CARRIER A) as well as the carrier used in the magnetic brush cleaner apparatus. The carrier in the cleaner upon interaction with the two toners causes them both to charge to the same polarity. The carrier used in the cleaner is identical to the one used in the positive developer (CARRIER B). The carrier (CARRIER A) of the negative developer was chosen so that the toner (TONER A) mixed therewith charged negatively in the developer housing.
      Thus, the combination of toners and carriers is such that one of the toners (TONER B) charges positively against both carriers (CARRIER A and CARRIER B) and the other of the toners (TONER A) charges negatively against one of the carriers (CARRIER A) and positively against the other (CARRIER B). Due to the application of a positive pretransfer corona both the toners are positive when they reach the cleaner housing and because the carrier employed in the cleaner causes both of the toners to charge positively, toner polarity reversal is precluded.
    • 三级高亮彩色成像装置及其清洁装置。 改进的电荷保持性表面的清洁是通过匹配正和负色调剂(TONER B和TONER A)及其相关载体(载体B和载体A)以及用于磁刷清洁器装置中的载体的摩擦电特性来实现的 。 与两个调色剂相互作用时,清洁剂中的载体使它们都以相同的极性充电。 清洁剂中使用的载体与正极显影剂(CARRIER B)中使用的载体相同。 选择负极显影剂的载体(载体A),使得混合的调色剂(TONER A)在显影剂外壳中负电荷。 因此,调色剂和载体的组合使得一种调色剂(TONER B)对两种载体(载体A和载体B)均有正负电荷,而另一种调色剂(TONER A)对其中一种载体(CARRIER A),并对另一方(CARRIER B)。 由于应用了正面的预转印电晕,所以当调色剂到达清洁器壳体时,调色剂都是正的,并且因为在清洁剂中使用的载体导致两种调色剂均正确地充电,否则调色剂极性反转被排除。