Electrographic printing of tactile images
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United States of America Patent
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Sep 30, 2014
Grant Date -
Feb 27, 2014
app pub date -
Aug 22, 2012
filing date -
Aug 22, 2012
priority date (Note) -
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Abstract
A method for forming a tactile printed image on a receiver medium using an electrographic printer, comprising forming a sequence of toner particle images on one or more primary imaging members, the sequence of toner particle images including a plurality of annular shapes having associated inner and outer sizes. The inner and outer sizes of the annular shapes varying in a monotonic sequence, such that when the sequence of toner particle images are transferred in register onto the receiver medium the annular shapes are substantially concentric and overlapping, thereby forming a tactile image feature having a hollow core; which is then fixed to permanently attach the transferred toner particle images to the receiver medium.
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