Thickness sensor comprising a leaf spring means, and a light sensor
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United States of America Patent
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Apr 20, 1993
Issued Date -
N/A
app pub date -
Jan 29, 1992
filing date -
Mar 30, 1990
priority date (Note) -
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Abstract
A typical printing device has a document feeder, a printer, and a document transport mechanism for transporting documents from the document feeder to the printer. In accordance with the invention, there is provided a thickness measurer which measures the thickness of a document prior to the transport of the document to the printer, a controller which receives the thickness information and which provides a gap-adjustment signal, and an adjuster which receives the gap-adjustment signal and adjusts the gap accordingly.
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