Phaser 350X

Parallel port pin signals This table shows the parallel port's connected pins; other pins are not connected. Parallel port signals Pin Signal mode names Return pin Signal source Description: C = Compatibility mode; N = Nibble mode 1 Busy/PtrBusy 19 Printer C mode: Positive true = not ready for data N mode: Data bits 3 then 7, then busy status 2 Select/Xflag 20 Printer C mode: Positive true = online N mode: Data bits 1 then 5 3 nAck/PtrClk 21 Printer C mode: Negative true = data transfer acknowledge N mode: Data qualifier 4 nFault/nDataAvail 22 Printer C mode: Negative true = printer fault exists that prevents printing N mode: Negative low = data ready, then data bits 0 then 4 5 PError/AckDataReq 23 Printer C mode: Positive true = printer error exists, such as media tray empty N mode: Data bits 2 then 6 6 Data 1 24 Host C mode: Positive true data input N mode: Not used 7 Data 2 25 Host C mode: Positive true data input N mode: Not used 8 Data 3 26 Host C mode: Positive true data input N mode: Not used 9 Data 4 27 Host C mode: Positive true data input N mode: Not used 10 Data 5 28 Host C mode: Positive true data input N mode: Not used 11 Data 6 29 Host C mode: Positive true data input N mode: Not used 12 Data 7 30 Host C mode: Positive true data input N mode: Not used 13 Data 8 31 Host C mode: Positive true data input N mode: Not used 14 nInit/nHostRTS 32 Host C mode: Negative true = reset interface N mode: Set positive 15 nStrobe/HostClk 33 Host C mode: Negative true = transfer data into printer input latch on rising edge N mode: Negative true = transfer Extensibility Request value into printer input latch on rising edge 16 nSelectIn/1284 Active 34 Host C mode: Negative true = select printer N mode: Used in conjunction with HostBusy for 1284 hardware handshaking 17 nAutoFd/HostBusy 35 Host C mode: Not used N mode: Used in conjunction with 1284 Active for 1284 hardware handshaking 18 Host Logic High Host Positive true = host signals valid Negative true = host signals invalid 36 Peripheral Logic High Printer Positive true = printer on Negative true = printer off Return to Phaser 350 Topic List						Support Home Page Phaser 350X Support Page Network Printers Support Home Additional Information Register your Printer ASPs & TPMs About Software Support Color Connection Printer Warranties Material Safety Data Sheets Supplies & Cartridge Recycling Program