See textual convention PrtAlertTrainingLevelTC
Additional information:
The value of this object depends on the alert condition. e.g.,
ePuntrained: Paper out.
ePtrained: Toner low.
ePfieldService: Marker failure.
The alert table in LaserJet 4500 will hold up to 32 entries. If the table is full and a new alert occurs, the table will
be managed as specified in the section 'Alert Table Management' of the Printer MIB (RFC1759).