Originally Posted by
slimslob
The PM parts usage. It is much more accurate for predicting parts life than the PM Count. The PM Counters only count page clicks with no adjustments for page size, the PCDU and Fusing Unit run longer for Letter SEF than for LEF, and legal runs even longer. There is also run in and run out time, the time the engine is turning before lead edge of the paper gets to the registration roller. The more small jobs, the more run in and run out time. That the PM parts are getgting worn but nothing is being put on the paper.
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