Epson LQ 1050 Technical Manual - Page 195

Table A-7 GA E05A15HA Port Functions Pin No. 1 2 3 J 6 7 { 11 12 J 15 16 ~ 23 24 25 26 27 1 30 31 32 33 34 35 36 37 38 39 J 42 43 J 45 46 47 48 49 50 Signal Name Direction BNKO OUT BNK1 OUT CS4 -~ OUT Csl P4 J IN Po PFA ~ OUT PFD HD 1 1 HD8 OUT Vss PWD CRA J CRD CTRGO VDD P5 WR RD Al 3R Al 4R HD9 Al 2 1 Al 5 AO ~ A2 CTRG RST Vss ALE CTRG+ IN OUT OUT OUT IN IN OUT OUT IN OUT IN IN IN IN Bank Select signal Function Chip Select signal Input Port Motor Control Port (Paper Feed Motor) Printhead Data Port N.C Ground Print Drive Pulse Motor Control Port (Carriage Motor) Cartridge output signal +5V output Port Write Strobe signal Read Strobe signal Address output signal Printhead Data #9 Address Input signal Address output signal Cartridge signal (-) Reset input signal Ground Address Latch Enable signal Cartridge signal (+) A-9 REV.-A