Epson AcuLaser C9300 - Manual (Page 73)

High-speed printing:
Select the High-Speed Printing (RAW) radio button. The Epson high-speed printing port sends a
print job to the target network printer without spooling all of the print data. High-Speed printing
is faster than the other two printing methods.
5. Click OK.
If you select the High-Speed Printing (RAW) radio button and if the printer does not support
High-Speed printing, or if you fail to connect to the printer, an error message appears. Follow the
message to remedy the problem.
Epson Network Guide
Network Software 73