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1. 发明授权

US4793281A Unitized toner assembly for continuous electrostatic film medium 失效
标题翻译：用于连续静电薄膜介质的组合式调色剂组件
公开(公告)号：US4793281A
公开(公告)日：1988-12-27
申请号：US90630
申请日：1987-08-28
申请人： Lawrence W. Dobbins , Siu K. Luk
发明人： Lawrence W. Dobbins , Siu K. Luk
IPC分类号： G03G15/10 , G03G15/11 , G03G15/06
CPC分类号： G03G15/101 , G03G15/11
摘要： A liquid toner applicator for elongated photoconductive film medium on which a latent electrostatic image has been formed includes an upper bearing surface for supporting moving film medium, which is spaced from a conductive block having an upper surface. The conductive block has slots cut into a toning region of its upper surface. During operation, pressurized toner wells through the slots into the region between the lower surface of the film and the upper surface of the block. The toner tones the latent image. The upwelling toner spills into fluid channels, which carry the toner which is not used to a catch basin. From the catch basin, a toner pump recirculates the toner. Downstream form the toning region, a further slot cut into the block communicates with a vacuum source to squeegee away excess toner which is not associated with the toned image. An air knife downstream from the vacuum squeegee includes a slot cut an an angle through the block and a pressurized air source therefor. The air knife directs an airstream in a retrograde direction relative to the motion of the film to keep excess toner in the vicinity of the vacuum squeegee, to enhance its effect. The block is maintained at a potential relative to the film.
摘要翻译：用于其上形成静电潜像的细长的光导电膜介质的液体调色剂施加器包括用于支撑移动薄膜介质的上支承表面，其与具有上表面的导电块间隔开。导电块具有切割成其上表面的调色区的槽。在操作期间，加压调色剂孔通过狭槽进入膜的下表面和块的上表面之间的区域。调色剂调色潜影。上升流量调色剂溢出到流体通道中，该通道将未用于调色池的调色剂运送到流体通道中。调色剂泵从卡盘池中循环调色剂。下游形成调色区域，切入块中的另一个槽与真空源连通，以刮除与调色图像不相关的多余调色剂。来自真空刮板下游的气刀包括通过该块切割一角度的狭槽和用于其的加压空气源。气刀相对于膜的运动沿逆行方向引导气流，以将过量的调色剂保持在真空刮板附近，以增强其效果。该块被保持在相对于该胶片的电位。

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