The SXEmacs commands for making hardcopy derive their names from the Unix commands ‘print’ and ‘lpr’.
print-buffer, but prints only the current region.
lpr-buffer, but prints only the current region.
All the hardcopy commands pass extra switches to the lpr program
based on the value of the variable lpr-switches. Its value should
be a list of strings, each string a switch starting with ‘-’. For
example, the value could be ("-Pfoo") to print on printer
‘foo’.