Sensor system for printers
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United States of America Patent
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Jan 20, 1998
Grant Date -
N/A
app pub date -
May 4, 1995
filing date -
May 4, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved sensor system for a printer having a print carriage comprising an ink source, a print head, and a coupler for coupling the ink source to the print head, the coupler including a tube for carrying the ink and sensors for detecting voids in the ink carried by the tubes and positioned in close proximity to the ink source and the print head. A controller is coupled to the sensors and responsive to signals therefrom to stop the print carriage when voids are simultaneously detected by the sensors.
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