mx80 -- set up print options for Epson MX80 (EXTERNAL) [v1.1]

syntax:  mx80 [-z] [-n] [-1 y|n] [-b y|n] [-e y|n] [-i y|n] [-u y|n]
              [-8 y|n] [-s <integer>] [-l <integer>] [-p <integer>]

ex:      mx80 -z
         mx80 -p17 -by -in -uy
         mx80 -s6

Set print options, assuming an Epson MX80 is connected.  Each option
is explained below:

   -z      (zap) set all options to power-up defaults (including top
           of form)
   -n      (normal) turn off special modes and set 10 cpi
   -1 y|n  -1y set unidirectional printing; -1n sets bidirectional
   -b y|n  boldface:  yes or no
   -e y|n  emphasized: yes or no (double strike)
   -i y|n  italics:  yes or no
   -u y|n  underlining:  yes or no
   -8 y|n  eight lines per inch:  yes or no (no=6 lines per inch)
   -s #    set number of lines to skip over at end of page
   -l #    set page size in lines (normally 66)
   -p #    set pitch; may be 5, 8 (really 8.5), 10, or 17 (really
           17.16)

'mx80' v1.0 didn't work with recent versions of Davex.