Printer features 1-17
Display output connector
1 Safety ground
2 Transmit data to print
3 Receive data from printer
4 Indicates whether the printer can receive data or not
5 Indicates whether the display can receive data or not
6 Signal ground
7 Power supply terminal
8 Power supply retrace line
Note:
The signal Transmitted Data (pin 2) is not connected; the signal Data Set Ready
(pin 4) is always in ON state, by means of a pull-up resistor.
For this reason, both signals are not included in the printer display data exchange.
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