System for conditioning liquid ink in a liquid ink type electros

Details System for conditioning liquid ink in a liquid ink type electros System for conditioning liquid ink in a liquid ink type electros

1996-05-17

1998-09-29

Pendegrass, Joan H.

Electrophotography

Image formation

Development

399296, G03G 1500

Patent

active

058157794

ABSTRACT:
A system for conditioning liquid ink made up of toner particles immersed in a liquid carrier medium being delivered to or on an image bearing surface in a multicolor electrostatographic printing machine of the type utilizing liquid developing material, particularly an image-on-image type liquid ink multicolor system. The liquid ink conditioning system includes a first member for electrostatically compressing or compacting the toner particles towards or on the image bearing surface. A second member is provided downstream from the first member for removing excess liquid from the compressed liquid ink layer. The present invention allows for a high magnitude electric potential to be applied to the first member for generating a large electric field to electrostatically compress toner particles towards or on the image bearing surface while a second member accomplishes excess liquid material removal from the liquid ink having a compressed toner layer, thereby avoiding image distortion that may accompany prior art devices which attempt to accomplish both image compaction and excess liquid removal in a single device.

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