Air supply arrangement for a printer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 28, 2001
Grant Date -
N/A
app pub date -
May 23, 2000
filing date -
May 23, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pagewidth inkjet printer which includes printhead with a plurality of print nozzles for ejecting ink drops towards a print medium. A space is defined between the nozzles and a nozzle guard with a series of apertures aligned with the nozzles. During printing operation, positive air pressure is supplied to this space, the air exiting the space through the apertures, preventing blockage by paper dust. When not printing, the air supply is closed off by air valve member and a capping member on a rotary platen contacts the printhead to maintain a closed atmosphere at the surface of the nozzles, reducing drying of ink on the nozzles.
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