Technical Reference Guide – Interface specifications > 20PARALLEL INTERFACE SIGNALSNOTEPARALLEL INTERFACE LEVELSLow level: 0.0 V to + 0.8 VHigh level: +2.4 V to +5.0 VSTROBEDATA BIT 1DATA BIT 2DATA BIT 3DATA BIT 4DATA BIT 5DATA BIT 6DATA BIT 7DATA BIT 8ACKNLGBUSYPESELAUTO FEEDGNDCHASSIS GROUNDGNDINITERRORSLCT IN123456789101112131416, 33171819 to 30313215, 343536To printerTo printerFrom printerFrom printerFrom printerFrom printerTo printerTo printerFrom printerTo printerSamples input data when changing from lowlevel to high level.Input data: High level indicates 1 and lowlevel 0 .Indicates character input completion, or functionoperation end, at low level.Indicates data cannot be received at high level.Data can be input at low level.High level indicates paper end.High level indicates select (on line) condition.Signal ground.Frame ground.Twisted pair return (for pin No. 1 to 11)This signal goes from high to low level whenpaper runs out.(Possible to indicate error and Off Line state).UnusedFixed to High (Connected to +5 V via 3.3 K Ω)Connected to input portHostClkPrtClkPrtBusyAckDataReqXflagHostBusynDataAvailIEEE1284activeSignal DescriptionCompatible NibblePinNo. Direction“Auto Feed” in menu set as valid in EPS modeFixed to High (Connected to + 5 V via 235 K )ΩConnector pin arrangement for above.1836119
