Citizen Systems CLP-7201e Printer User Manual


 
Appendixes
72
3. USB Interface
USB Interface
Specifications USB1.1
4. RS-232C loopback test
After connector wiring as shown in the figure, place the printer into self-test mode. The printer will
receive data that has been transmitted by printer itself and the test of receiving and transmitting data
will be performed.
2 Specifications