I am trying to monitor the output of a wide-format printer (HP Designjet T120) with SNMP. I have been messing with this sporadically for a few days since I am new to SNMP. I'd like to know the total area printed in square units (possibly in the life of the printer). This is tricky with a wide-format printer since the length of each printed page can vary (as the printer automatically cuts off the paper when the printed page is finished).
I have found prtMarkerCounterUnit, which reads as a value of "7." "7" is apparently equivalent to "impressions." prtMarkerLifeCount is "70," meaning the printer has printed 70 impressions. This seems right since the printer is only a few months old and doesn't get used too often. Unfortunately, "impressions" doesn't tell me anything about square footage since page lengths can vary, as state earlier.
I have searched from T120-specific SNMP commands, but I haven't found anything. Could someone help me figure out how to calculate total area printed? Thank you.