USE OF VCSEL TO DETECT PAPER IN A PRINTER
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United States of America Patent
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Issued Date -
May 6, 2010
app pub date -
Nov 2, 2009
filing date -
Oct 31, 2008
priority date (Note) -
Abandoned
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Abstract
A method of detecting the properties of a printing target in a printing apparatus capable of performing a recording process on the printing target. The method uses a vertical cavity surface emitting laser disposed in the printing apparatus and comprises transporting the printing target through the printing apparatus, emitting a wavelength modulated optical signal toward the printing target using the vertical cavity surface emitting laser, receiving a reflection of the wavelength modulated optical signal, and analyzing the reflected optical signal to identify a property of the printing target.
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