Determining an end-of-life prediction of a replaceable cartridge may be
accomplished by analyzing input parameters independent of the cartridge,
in addition to parameters of the cartridge. An event count denoting a
consumption event is read from a memory in the replaceable cartridge. A
current consumption status of the replaceable cartridge is determined
based on an initial load and the event count of the replaceable
cartridge. An input parameter is received from an input device regarding
a next pending process that involves a pending consumption increment of
the replaceable cartridge. A subsequent consumption status of the
replaceable cartridge is determined corresponding to the current
consumption status altered by the pending consumption increment. The
subsequent consumption status is compared to a replacement condition to
decide whether a replacement condition is satisfied. An alert indicator
is signaled to an operator upon satisfaction of the replacement
condition.