http://bugs.winehq.org/show_bug.cgi?id=11917
Summary: Parallel port printing problem (missing flow control?) Product: Wine Version: unspecified Platform: Other OS/Version: other Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown AssignedTo: wine-bugs@winehq.org ReportedBy: dank@kegel.com
http://www.winehq.org/pipermail/wine-users/2008-March/029601.html and http://www.winehq.org/pipermail/wine-users/2008-March/029648.html say that printing directly to a dot-matrix printer by writing directly to LPT1 works if you write one byte at a time, but fails with missing chars if you write many bytes at a time.