This function uses the
mc5p or
mc4 and
mc5 capabilities,
if they are present, to ship given data to a printer attached to the terminal.
Note that the mcprint code has no way to do flow control with the printer
or to know how much buffering it has.
Your application is responsible for
keeping the rate of writes to the printer below its continuous throughput rate
(typically about half of its nominal cps rating).
Dot-matrix printers and
6-page-per-minute lasers can typically handle 80cps, so a good conservative
rule of thumb is to sleep for a second after shipping each 80-character line.
