You can use virtual printers to create images from documents, fax documents, or send documents to a queue to be formatted for a specific type of printer.

And if you remember, it lets you print to any web-connected printer, without the need to install drivers on specific machines.

While this code is specific to a Printer, it is oblivious to whether the test is for printing or initialization, or to whether Printer is the target of a method call or a parameter to a method.