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.