Beth, I've got a first swag at this which you can download from the beta test page....
http://www.celestialsoftware.net/telnet/beta_software.html
The version number is 2.11 RC10, even though the text on the web page hasn't been updated to reflect this.
This version *should* correctly print text on your Z31 (or any winprinter for that matter) as it takes an approach similar to the print screen/selection in order to render the printed data. The 'direct to printer' flag will still send raw data directly to your printer, so this option should be *disabled*.
Remaining work for this option includes choice of printer font/point size and support for international character sets and character set translation.