Patent ID: 8790027
Filing Date: 2014-07-29
Classification: B41J,G06K

Abstract:
1. A printer comprising: a print head, a single web path for a longitudinally extending web of record members having longitudinally spaced high frequency RFID transponders, the web path extending in a downstream direction to the print head, and a high frequency magnetic coupler disposed along the web path, the coupler being capable of magnetically coupling with the transponders by writing to and/or reading the transponders one-at-a-time, the coupler including at least one inductor capable of radiating or receiving magnetic energy, each inductor having a magnetizable core and an energizable winding surrounding the core, and the coupler being disposed to radiate or receive magnetic energy at a level to write to or read a transponder in the web generally aligned with ‘the core but insufficient to write to or read any transponder in the web not generally aligned with at least one core; and