Oki ML3410 Handbook page 41

DOS COPY
DOS COPY
Just as you use this command to copy a file from one disk or directory to another, you can copy a text file
to the printer. If you're not using LPT1: as your printer port, substitute the name of your port for LPT1: in
our example.
Example
COPY C: \WORK \NOTES.TXT LPT1:
ML3410 ( 96-02-07 )