There are two options here.
If the print file has printer-specific escape sequences in the file, Print Wizard will pass this directly to the printer without trying to format or auto-fit any portion of the print job. So you need do nothing in this case.
If the print file contains control sequences and tag printing that Print Wizard does not see as printer-specific codes, you can still print direct to the printer by including the command-line switch to print to the spooler or to print raw:
/vlevel=spooler or /vlevel=raw