Epson ActionLaser 1600 - Manual (Page 32)

Handling TrueType fonts
By default, EpsonScript converts TrueType fonts to be
compatible with Adobe® Type 1 fonts before printing them.
If you wish, you can specify that EpsonScript print TrueType
fonts as TrueType.
Because EpsonScript is designed to print PostScript-compatible
fonts such as Type 1, you should normally not change the
default setting.
Specifying which fonts to download
The Include Fonts option specifies which types of fonts need to
be downloaded when printing. The options are All But
PPD/Installed (default), None, All, All But Standard 13, All But
Standard 35, and AU But Resident.
Normally when using EpsonScript with an ActionLaser 1600,
you should not change the default setting of All But
PPD/Installed. This ensures that all fonts required by your
document are downloaded except those already in the PPD list.
If you are using EpsonScript to print to a printer that is able to
communicate with the Macintosh, you might choose All But
Resident. In this case, the Macintosh interrogates the printer to
determine which fonts are already downloaded. Only fonts not
already in printer memory are downloaded.
3-8 Using EpsonScript in a Macintosh Environment