Patent ID: 7722172
Filing Date: 2010-05-25
Classification: B41J,G06F,H04N

Abstract:
1. A printing device comprising: a body; a printing cartridge engageable with the body, the printing cartridge having a housing and a media supply arrangement positioned within the housing and containing a supply of media; a memory storing a plurality of values representing various characteristics of the printing cartridge and contents thereof; a data lookup table storing a plurality of first codes, each of the first codes corresponding to one of the plurality of values stored in the memory; a radio frequency tag positioned on the housing of the printing cartridge and carrying one or more second codes, each of the second codes being associated with a first code of the data lookup table; a processor positioned in the body to control operation of a media feed mechanism and a printing mechanism; and a radio frequency tag reader positioned in the body to read the radio frequency tag and to provide the processor with data carried in a signal received from the radio frequency tag, wherein the processor is operable to apply an algorithm to the one or more second codes to identify the first code associated therewith, and further determine a value stored in the memory corresponding to the identified first code.