DP321 User's Manual
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printer’s parallel interface. Squeeze the wire clips together until they lock in place on either side of
the connector.
2. Plug the other end of the cable into the computer’s parallel interface.
1.9.2 Connecting to the USB Interface
1. Plug the A end of the USB cable (flat shape) into the computer's USB interface.
2. Plug the B end of the USB cable (square shape) into the printer's USB interface.
Note: Don't impact the plug after connecting to the USB cable.
1.9.3 Connecting to the Serial Interface
1. Turn off both the computer and the printer. Plug the serial cable connector securely into the printer’s
serial interface. Tighten the screws on either side of the connector. (As shown in figure1-27)
2. Plug the other end of the cable into the computer’s serial interface; then tighten the screws on either
side of the connector.
Parallel interface
USB interface
Serial interface
Figure 1-25 Connect to the parallel interface
Figure 1-26 Connect to the USB cable
Figure 1-27 Connect to serial interface