CONSUMABLE ITEMS AND RADIO FREQUENCY IDENTIFICATION TAGS USED THEREON

摘要

A method of operating a piece of data bearing document production equipment, comprising:
loading a roll of a consumable supply into the equipment, the supply including a supply cylinder, unused material wound onto the supply cylinder waiting to be used, and a take-up cylinder for taking-up used material, at least one of said supply cylinder and said take-up cylinder containing a read/write memory element (24) having stored data therein relating to the amount of material remaining to be used;
operating the equipment to perform a document production task so that at least some of the material remaining to be used is used; and
changing the data stored in the memory element relating to the amount of material remaining to be used based at least in part on the amount of material expected to be used for the production task.