"Worksheet","Why declared page yield does not predict every document","Evidence status","Your configuration"
"Purpose","Retain the declared yield’s test conditions and supply type. Real document mix, setup and operating conditions can change the number of useful pages produced.","Proposed workflow",""
"Check","Question to record","Decision","Your observation"
"Declared yield","Manufacturer method","Comparable only within stated scope",""
"Observed output","Your documented jobs","Specific to those conditions",""
"Useful pages","Output retained after rejects","Best denominator for job cost",""
"Example","A fictional $60 supply with a declared 3000-page yield gives $0.02 per declared page before paper and other costs. If a recorded period produces 2400 useful sides for that supply expense, the observed supply cost is $0.025 per useful side. Those different denominators should be named, not averaged together.","Illustrative; not a measured product result",""
"Source","https://help.brother-usa.com/app/answers/detail/a_id/186864/~/toner-yield-not-as-expected","Official references; scope in article",""
"Result","Accepted / unresolved / needs correction","Record date and configuration",""