6.3 Printer Selection by Model Name

Windows 3.1 uses model names to identify printers. This means, for example,
that applications create printer device contexts by passing a model name, such
as “Apple LaserWriter IINT,” instead of the generic driver name, “PostScript.”

This use of model name also affects printer selection. When installing a printer, the driver searches the list of installed internal and external printers and installed WPD files for the requested model name. This means the model name stored in the WPD file must exactly match the model name in the initialization file. If the driver is unable to find the requested model, it will use the default printer (Apple LaserWriter Plus).