Change font type of printer in CUPS

Question

I am simply looking for a way to change the font type of a printer in CUPS.

I have tried updating fonts, changing PPD's, changing font directories, and updating charset files.

The only partial solution I found was to change the charset file to contain the font type I wanted.

However, this changes the font type throughout CUPS and on all printers.

Does anyone know how to change one printer to print with a certain font and another printer to print with a different font?

NOTE: I am using CUPS on a RHEL box and cups4j to spawn the job through java.

Thanks