Epson LQ 1070 User Manual - Page 119
Interface Specifications, Specifications and Pin Assignments, Technical Specifications
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Interface Specifications Your printer is equipped with a parallel interface. Specifications and pin assignments The built-in parallel interface has the following characteristics: Data format: 8-bit parallel Synchronization: STROBE pulse Handshake timing: BUSY and ACKNLG signals Signal level: TTL compatible Connector: 36-pin 57-30360 Amphenol connector or equivalent The table below provides the connector pin assignments and describes their respective interface signals. Signal Return Pin Pin 1 19 2 20 3 21 4 22 5 23 6 24 7 25 8 26 9 27 10 28 Signal Direction Description STROBE DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 DATA 7 DATA 8 ACKNLG IN IN IN IN IN IN IN IN IN OUT STROBE pulse to read data. Pulse width must be more than 0.5 microseconds at the receiving terminal. These signals represent information of the 1st to 8th bits of parallel data respectively. Each signal is at HIGH level when data is logical 1 and LOW when it is logical 0. About an 11 -microsecond pulse. LOW indicates that data has been received and that the printer is ready to accept more data. 7-10 Technical Specifications