Epson LQ-2500 User Manual - Page 167
APPENDIX H-INTERFACE SPECIFICATIONS, The Parallel Interface
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Amendix H Interface Specifications The LQ-2500 is equipped with both a parallel and a serial interface. Both are described in this appendix. WARNING Do not connect cables to both interfaces. This may damage your printer. The Parallel Interface This interface offers: Connection using a standard 36-pin AMPHENOL 57-30360 connector Synchronization of data transfer by external STROBE pulses Handshaking using ACKNLG and BUSY signals A full complement of control connections TTL-compatibie signal levels on all connections for data and control Paper-out detection through the BUSY PE and ERROR signals. with the BUSY and ERROR warnings under software control. Table H-1 shows the purpose of each connection. The figure below shows timing. Figure H-1. Parrell interface timing diagram Interface Specifications H-1