With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
prtMarkerLifeCount
Printer Marker Life Count
1.3.6.1.4.1.11.2.3.9.4.2.2.10.2.1.4
The count of the number of units of measure counted during the life of printer using units of measure as specified by prtMarkerCounterUnit. Note: This object should be implemented as a persistent object with a reliable value throughout the lifetime of the printer.
Back to Printer-MIB MIB page.
IPHost Network monitor allows you to monitor prtMarkerLifeCount on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.