Specifications

Chapter 4: 7401-4xxx Hardware Installation 4-15
Using the Printer Test and Display Panel
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READY
POWER
PAPER
ATTN
ERR
F3 F2 F1 F0
FORM
FEED
LINE
FEED
TEST SELECT


Display LED Indicators
TheLEDsprovidethefollowingstatusinformation:
PAPER/POWER (green)
Status Indication
PrinterOK VeryshortOffblinkevery14seconds
DCpower OnorFlashingwhenpowerison
Papersupply RapidOn‐Off50%cycleflashingwhenoutof
paper
Paperlow RapidOn‐Off50%cycleflashingwhenpaperlow
Diagnosticmode 10%Onand90%Offwhenindiagnosticmode
READY (green)
Status Indication
Systemready On=SystemreadytoacceptdataOff=Notready
Dataflow Duringreceipt ofdata,LEDblinksfollowingstate
oftheBusysignal
Reversechannel WhennotprintingduringIEEE‐1284reverse
channelstatus,LEDblinksafterPtrBussignalflow