Printer Repair Questions? Ask IT Technicians for Answers ASAP
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From the sound of it, you might have a networked printer. Is that correct, and is the Samsung printer in question networked ?
If so, go into its built-in settings... or its web interface, if your model has one... and check on its current IP address. It might be that its IP address has changed, either spontaneously, through resetting to defaults, or through a router reset. If so, it would suddenly go 'offline' to all who try to print to it, owing to not being still at the IP address configured for it.