With IPHost Network Monitor you can run simple snmp requests against a HP device in your network.
job-info-io-source
job-info-io-source
1.3.6.1.4.1.11.2.3.9.4.2.1.1.6.5.11
Indicates which I/O source, the print job was received over. The value maps to port numbering scheme supported in the DEVICE/SOURCE-SUBSYSTEM/IO/PORTS sub-tree.
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IPHost Network monitor allows you to monitor job-info-io-source on Hewlett Packard device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.