A data retrieval method and system are provided that include providing, in
a device, a replaceable unit, storing usage data of the device in a
database based on information stored in a CRUM used in the replaceable
unit, providing access to the database to a user, and providing the usage
data to the user. The user data is based on the device performing an
operation and the information stored in the CRUM reflecting at least one
data point reflecting the performed operation.