Printing to Lexmark Optra T or S series.

We are experiencing problems with printing from W95b to Lexmark Network printers when printing from certain apps. We are using Dell GX110 machines, when printing from WordPad, Lotus 5 or GroupWise 5.5, you can only print once, after that you get an error and then must restart the application. When changing the printer driver to a Lexmark Optra R +, then(in some cases)it does solve the problem. – our printserver is an OS2 Lan Manager server.