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Hi, I have an iMac running Sonoma OS 14.6.1 and have an HP LaserJet 400 M401n. Until this past week, my partner, who has a Mac Mini running Monterey OS 12.0.1 was able to print through the shared network, but that suddenly changed and he cannot use the printer. We've tried a few things (e.g., deleting and re-adding the printer) but have not been able to get it work again. He's variously gotten messages like "cannot find printer" or "hold for authentication." We'd welcome suggestions because this is driving us crazy!

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