foo2slx is an open source printer driver for printers that use the Software
Imaging K.K. SLX wire protocol for their print data, such as the Lexmark C500n.
These printers are often erroneously referred to as winprinters or GDI
printers. However, Microsoft GDI only mandates the API between an application
and the printer driver, not the protocol on the wire between the printer driver
and the printer. In fact, SLX printers are raster printers which happen to use
a very efficient wire protocol which was developed by Zenographics and cloned
by Software Imaging K.K. and licensed by most major printer manufacturers for
at least some of their product lines. SLX is just one of many wire protocols
that are in use today, such as Postscript, PCL, Epson, ZjStream, etc.
Users of this package are requested to visit the author's web page at
http://foo2slx.rkkda.com/ and consider contributing.