Patent ID: 6628316
Filing Date: 2003-09-30
Classification: B41J,B65H

Abstract:
A printer media supply adapted to sense data characteristic of the type of media disposed therein, comprising:(a) a transceiver for transmitting a first electromagnetic field and for sensing a second electromagnetic field; (b) more than one media supply tray each media supply tray being disposed in the media supply at locations spaced-apart from said transceiver for supplying media therefrom; and (c) a transponder connected to each media supply tray, each transponder having a memory with data stored therein indicative of the type of media, in the respective media supply tray to which the transponder is connected, each transponder capable of receiving the first electromagnetic field to power each transponder and with said transponder generating a second electromagnetic field in response to the first electromagnetic field received thereby, each second electromagnetic field generated by each transponder being sensed by said transceiver and characteristic of the data stored in said memory, wherein said transceiver selectively polls each transponder to obtain data from each transponder and associates each transponder with one of the locations to determine the type of media disposed in the media supply tray at each location.