Patent ID: 9707784
Date: 2017-07-18
CPC Classifications: B41J,G03G,G06F,H04L

Claim:
1. A memory device to store data related coupled to a replaceable printer component comprising: a non-volatile memory unit; an interface to provide communication between the non-volatile memory unit and a printer controller; a plurality of data blocks in a data area of the non-volatile memory unit; a plurality of corresponding tags in the non-volatile memory unit, a tag being associated with each data block, the tags and the data being written to the at least one block based on the determination as to whether the at least one block of the data is to be encrypted; and a tag encryption mask stored within a header area of the non-volatile memory unit; wherein the non-volatile memory unit is to store encrypted data and unencrypted data, and wherein the tag encryption mask indicates an encryption status of each block of the non-volatile memory unit defined by the tags.