What does an “Unable to Communicate with the printer” error mean?
1. Check the communication settings used on the printer and the computer port; these have to match exactly. The default serial communications settings on most printers is Baud rate (bits per second) 9600, Parity-None, Stop Bits 1, and Host Handshake (flow control) Xon/Xoff. 2. In Windows Printers and Faxes area, check the “Ports” tab under printer’s properties and make sure “Enable Bi-directional Support” is unchecked. 3. For serial communications, make sure that a Weber printer cable is used.