Because each type of print client (for example, UNIX clients and Windows NT clients) creates print jobs a little differently, a variety of print server services are required to receive and prepare the jobs. Some print server services assign print jobs a data type, which tells the spooler whether and how to modify the print job in order to print correctly. Some services leave the data type blank (in which case the default data type in the Print Processor dialog box on the print server is assigned).
If you create a printer, the default data type is EMF (if the printer is a PCL printer) or RAW (if the printer is PostScript). To change the default data type, use the following procedure:
1. Click Start, and then click Settings.
2. Click Printers.
3. Click to select the printer for which you want to change the data type.
4. Click Properties on the File menu.
5. Click the General tab.
6. Click the Print Processor button
7. In the Default Datatype list, click the data type.
8. Click OK in each dialog box.
The following sections describe the different data types.