NCR NCR 5972 Set Screen Save Blank , Set Screen Save Walk

4-8 Chapter 4: Programming Set Up
Set Screen Save Blank
Format:1B 09
Description:Thiscommandisintendedtopreservethelifeofthe
displayhardwareunit.Thefirmwaremaintainsafive‐minutetimer
thattriggersthisfeature.TheScreenSavefeaturecanbedisabled
throughacommandfromthehostsoftware.Whenthefeatureis
notdisabled,twospecificoptionsexist.TheSetScreenSaveBlank
operationcausesthedisplaytogoblankwhenthetimerexpires.
Whenthefirmwarereceivesthecommandcode,theScreenSave
modeiscanceled,andthefive‐minutetimerisestablished.Screen
SaveBlankremovespowerfromtheRetailDisplay,andrefreshes
thedisplayinthesamemannerastheSetLowPowerOn
command.Atpowerup,thetimerisestablishedatfiveminutes,
andScreenSaveBlankisestablishedasadefault.Thefiveminute
timerisnotresetbyanyinvalidorincorrectcommand.
Set Screen Save Walk
Format:1B 0A
Description:Thiscommandcausesthevisibledisplaytowalk
righttoleftwhentheScreenSavetimerexpires(fiveminutes).The
charactersonthedisplayappeartowalkacrossthecorresponding
displayrowfromrighttoleft.Thetwolinesinthe2x20Display
walkinparallelcompletelyofftheleftsideofthedisplay,andthen
thetwolinesappeartocomebackfromtheright.Ifthedisplayis
spacefilled,thennoeffectisperceivedeventhoughthewalkingis
takingplace.TheScreenSaveBlankmodeisthedefaultmodeafter
powerup.