The "texprint" environment variable

To determine which printer driver should be preloaded when starting TEXPrt, the environment variable TEXPRINT is used.
Example: setenv TEXPRINT "DVIPrint" sets the DVIPrint driver as the default driver.
If the environment variable TEXPRINT is not set or if the specified printer driver cannot be found in the TeXDrivers directory, the first entry which has been scanned is preloaded.