Sunday, February 15, 2015

Canon CP910 - Connection Method not supported -9786 on OS X Snow Leopard

I've been very happy with the Canon Selphy CP910 photo printer. Print quality is excellent and it has been very easy to use. Except with my oldest Mac, which is stuck on Snow Leopard 10.6.8.

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.

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