Media detection apparatus and method

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United States of America Patent

PATENT NO RE47928
SERIAL NO

15586455

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus and method for automatically calibrating a media sensor configured to detect advancing print media in a printing device. In some embodiments, the apparatus selects a first light intensity level and a second light intensity level greater than the first light intensity level. A light source unit, such as a light emitting diode or laser diode is activated to emit light at the second light intensity level. The light passes though print media, for example, a roll of self-adhesive labels, that is advanced along a print path of the printing device. The amount of light transmitted through the print media is measured as the print media advances. If the measured light id='REI-00001' date='20200407' increasesid='REI-00001' id='REI-00002' date='20200407' decreasesid='REI-00002' , the light source unit is reactivated to emit light at the first light intensity level. In some embodiments, the apparatus identifies whether print media has changed or an out-of-stock condition exists.

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Patent Owner(s)

Patent OwnerAddress
HAND HELD PRODUCTS INC855 S MINT STREET CHARLOTTE NC 28202

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sanchez, Gutierrez Jose Fernando Orlando, US 4 1
Schwallie, Ronald Lake Mary, US 8 52

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