Intermec 6822P User Manual page 42

Chapter 3 — Configuring the 6820 Printer
28
4 The "Opening COM Port x to printer. . . Done." message indicates
that communication between your PC and the printer has been
established.
Note: If "Unable to open COM Port x to printer" appears in the
text box another software application may be using the selected
COM port. Select another COM port or disable the software
application using the COM port. Also, verify that the gray
terminal holder ribbon is disconnected as indicated earlier.
page 33 for more error messages.
6820 Series 80-Column Printer User's Manual
See