Drivers install fine. Printer is found and installed. But always when trying to print, the dreaded error message comes up:
Connection Method not supported -9786
Apple forums have all kinds of voodoo to make it work, none of it helps. The key to success is:
- In "Add printer" dialog, WAIT, do nothing, for ~10 seconds.
- Additional, working CP910 appears with the magic word 'cnybmscp'.
Do not install the "Bonjour" CP910. It's a trap. It will fail you.
Do install the "cnybmscp" CP910.