Hi !

> 1) API
> -----
> 
> 1.1 KPrinterFactory class
> 
> This class is used to create KPrinter object (see below). Developers shouldn't
> construct directly KPrinter object, but use "KPrinterFactory::self()->printer()".
> The factory takes care of the user settings and construct an object for the
> appropriate underlying printing system. DO NOT delete the KPrinter object, as
> it will be reused for other calls.
> 
> 1.2 KPrinter class

Tiny API suggestion:

If the KPrinterFactory is only used to create a single KPrinter object,
I'd rather hide the factory class and add the self() method to KPrinter.

Harri.