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首页> 外文会议>International Conference on Digital Printing Technologies; 20041031-1105; Salt Lake City,UT(US) >Effect of Filler Distribution and Caliper Variations on Toner Transfer in Electrophotographic Printing
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Effect of Filler Distribution and Caliper Variations on Toner Transfer in Electrophotographic Printing

机译：填充剂分布和厚度变化对电子照相印刷中墨粉转移的影响

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摘要

Print density mottle in solid black electrophotographic printing was shown in a previous report to be strongly linked to the distribution of PCC fillers in paper. A model of toner transfer showed qualitatively that toner transfer efficiency is locally increased in regions of high filler density. In this report we extend the previous work by quantifying effect of filler distribution and of paper calliper variations on toner transfer in electrophotography. We modeled the complete electrostatic force field structure within a paper-air-toner transfer gap during electrophotography. By relating effective local dielectric constant to filler concentration, we computed the difference effects that surface and bulk PCC fillers have on the local toner transfer force field. The toner transfer force was found to be higher when the PCC filler was distributed homogeneously throughout the bulk thickness rather than localized at the surface of the paper. Quantitative model of in-plane variations in toner transfer force as a function of corresponding in-plane variations of the effective paper dielectric showed that the variation in paper dielectric on the scale of 500 μm or larger contribute significantly to toner transfer force variations. We also found that the higher filler content amplified the effect of caliper non-uniformities on the toner transfer force variations.
机译：先前的报告显示，固体黑色电子照相印刷中的印刷密度斑点与PCC填料在纸张中的分布密切相关。调色剂转移模型定性地表明，在高填料密度的区域中，调色剂转移效率局部提高。在本报告中，我们通过量化填料分布和卡尺变化对电子照相中的墨粉转移的影响来扩展以前的工作。我们在电子照相过程中对纸-空气-墨粉转移间隙内的完整静电力场结构进行了建模。通过将有效的局部介电常数与填料浓度相关联，我们计算了表面PCC填料和散装PCC填料对局部墨粉传递力场的影响。当PCC填料均匀地分布在整个厚度上而不是局限在纸的表面时，发现调色剂的转印力更高。调色剂转移力的平面内变化与有效纸电介质的相应平面内变化的函数的定量模型表明，纸张电介质的变化在500μm或更大的尺度上会显着影响调色剂转移力的变化。我们还发现，较高的填料含量会放大厚度不均匀对调色剂转印力变化的影响。

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