Method and apparatus for applying a film of developer fluid onto a lithographic printing plate in a developing station
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United States of America Patent
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Mar 21, 2006
Grant Date -
Dec 2, 2004
app pub date -
Feb 20, 2004
filing date -
May 28, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to the development of lithographic printing plates and comprises the application of a thin film of developer solution to each plate in a controlled manner using a jetting printhead. Sensors and control means activate and deactivate the jetting printhead in response to the presence or absence of a plate. The developer is allowed to dwell on the plate as it is conveyed across a support structure for a sufficient time to allow for percolation into and/or dissolution of the soluble areas of the coating and is then washed off and sent to waste.
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