Hewlett-packard Development Company, L.P.

Choon Leng Tan

Stephen D Panshin

Paul L Jeran

David B Novak

Steven T Castle

Elijah Houle

A logic circuit, or method using the same, may include a memory storing (i) a plurality of partition groups, each partition group including a plurality of partitions, and (ii) a partition map defining an address and access mode for each of said partitions, defining different access modes for at least some of the partitions. The plurality of partition groups may comprise (i) a general use partition group including a first consumable level counter; (ii) a second use partition group including a second incrementally updatable consumable level counter; and (iii) a guide partition group including a use indicator to indicate which of the first and second consumable level counters to use.

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Singapore, Singapore

Choon Leng Tan