NCR 74 OFX (7874) - Ongoing Wellness Check; Service Diagnostics; Soft Power Down;Power up

1-12 Chapter 1: Product Information
• SpinnerMotor
• ScaleBoard
• LaserDiodes
• FPGA
• ScaleHardware
IfScanDoctorfindsaproblemhinderingproperoperationoftheRealScan74,it
disablestheunit;otherwisetheproblemisidentifiedandoperationcontinues.
Ongoing Wellness Check
ScanDoctorrunsallthetime,fromthemomenttheRealScan74isturnedon.It
constantlymonitorsRAM,theSpinnerMotor,LaserDiodesandScaleHardware.
Service Diagnostics
ScanDoctorincludesservicediagnosticsforthetrainedservicetechnician.Thesego
beyondthewellnesschecksandareaccessedthroughtheuseofspecialprogramming
tags.RefertoAppendixBformoreinformationontheScannerServiceDiagnostics
Tests.
Soft Power Down/Power Up
TheRealScan74sensesperiodsofscannerinactivity.Thescannerʹssoftpowerdown
featureextendsthelifeoftheRealScan74bydisablingmajorportionsoftheunit,
includingthelaserdiodes,spinnermotor,andassociatedelectronics.Thelengthof
theinactiveperiodpriortothesoftpowerdownis
user‐selectedandprogrammed
remotelyorthroughtags.
ScannerpowerupoccurswhentheRealScan74motiondetectordetectsmovement.
Thisdetectorislocatedontheoperatordisplaypanel,totherightoftheverticalscan
window.TheRealScan74canalsobepoweredupwiththecheckersignson
thehost
terminal.Thiscapabilityassumesappropriatehostterminalsoftware.
TheRealScan74canalsobepoweredup/downbythehostapplicationwhencashier
signsin/outusingRS232communications.