Download ProofReady and vDot Plugins Install and Reference

Appendix A: Troubleshooting
USB Connection not showing up in RIP (Macintosh with Epson Printer)
The RIP will only look for USB connections while the RIP is starting up. If
you have added a new USB connection since the RIP was last activated,
simply re-start the RIP to establish the connection.
Settings that were previously available but have now disappeared may be
due to power up sequences.
To make sure that the USB connection is valid, you should install the Epson
driver in accordance with the instructions supplied with the Epson USB
Adapter Cable. Connect the printer and re-start both the printer and the
Macintosh. If it is properly being seen by the USB bus, it will show up in the
printer port list in the Epson driver (in the Chooser), as shown below: