NCR 74 OFX (7874) - Not-On-File Volume

Chapter 5: Programming 5-21
Not-On-File Volume
TheHexEtagsetsthevolumeoftheNot–On–FiletonebylisteningtoitastheHexE
tagisrepeatedlyscanned.Thenewtonesoundsfortwoseconds.Endthismodeby
scanningtheEndtagoranothervalidHextag.
TheNot‐On‐Filetonegoesoffwhen
thescannerreceivesacommandfromthe
terminaltodoso.InRS232protocol,thereisaNot–On–Filecommand.Refertothe
NCRScanner/ScaleInterfaceProgrammerʹsGuide(BD20‐1074‐A)formoreinformation
abouttheNot‐On‐Filecommand.