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I upgraded to 12.04 a few days ago and can no longer print to my shared printer (HP P1006) from my MacBook Pro (10.6). I can print locally. Printer sharing was working acceptably before the upgrade; it required identifying myself as "Guest" on every print request, but I could live with that. Now I consistently get authentication rejections as either a registered user (registration defined in the Sambu GUI app), or as Guest.

Any suggestions?

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