Print media vacuum holddown
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United States of America Patent
Stats
-
Aug 7, 2001
Grant Date -
N/A
app pub date -
Apr 14, 1999
filing date -
Apr 14, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vacuum holddown for sheet materials has a surface having a field of vacuum ports in which each individual port is gated. When a vacuum is applied to the underside of the holddown, the gates close. When a sheet of material is introduced onto a region of the field, the gates only within vacuum manifold passageway covered by the material are configured to spring open, applying a suction force to the sheet via the now opened ports. The holddown thus automatically adjusts to material size. An implementation for use in an ink-jet printer with cut-sheet print media is demonstrated.
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Cited Art Landscape
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