You need to change the LPT timeout value in the Virtual DOS layer.
Or you can fix your DOS app., which should close the printer port at the end
of the print job.
If you are the original programmer, feel free to write to my private e-mail
address telling me which language is your app. written. Maybe I can give you
some hints.
Kind regards,
Davide Guolo
--------------------------------------------------------------
Printfil - Windows Printing System for Applications
http://www.guolo.com/printfil
Odbc4All - Connection to ODBC Data Sources for any Application
http://www.guolo.com/odbc4all
--------------------------------------------------------------