Appendix Printer Interface Connector (Serial): DP-110 Type: D-Sub 9-pin connector 9 6 5 1 Pin assignments 102 Pin Number Signal Name Signal Direction Function 2 RXD Input Receive data from the TM printer. (TM Printer -> Computer) 3 TXD Output Transmit data to the TM printer. (Computer -> TM Printer) 4 RTS Output Indicates whether the host is ready to receive data. • [SPACE]: The TM printer is ready to receive data. • [MARK]: The TM printer is not ready to receive data. 5 GND - Signal GND 6 DSR Input This indicates whether the display is ready to receive data from the TM printer. • [SPACE]: The TM printer can receive data. When the TM printer becomes ready to receive data SPACE is output.
• [MARK]: The TM printer cannot receive data. If the TM printer becomes ready to receive data, MARK is not output. 9 RESET Output Reset signal to the printer. (Computer -> TM Printer)