Imaging apparatus for exposing a printing member and printing members therefor
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United States of America Patent
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Jan 24, 2006
Issued Date -
N/A
app pub date -
Jul 24, 1998
filing date -
Jan 24, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus, including a printing system, press, press components, and printing members for lithographic printing and other similar processes, is disclosed. The printing system for imaging printing members includes a plurality of infra red laser diodes coupled to a respective optical fiber for providing an output light beam, and a stationary telecentric lens assembly, that operates to image a printing member by exposure from ablative infra-red radiation. The printing members include a first substrate layer, with a second radiation absorbing layer over this first layer, for supporting an image ablated onto the printing member. A third surface coating layer is over the second layer. The third layer is substantially abdhesive to ink while the second layer has an affinity for ink opposite that of the third layer. Methods for imaging with the apparatus and for imaging the printing members are also disclosed.
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