iMAC loses the ability to control external devices. What can I do?

I had problems with my iMAC "End of 2013", where it loses the ability to control devices (USB connected) external, either a printer or a CD/DVd burner. restart the computer will (usually) restore ability of the computer to control the external unit.

With a printer, the computer or send the print job to the printer. If correctly, the printer receives the print job, it will print. Otherwise, I restart the computer, and then the computer can send print job. But, in the case of the CD/DVD burner, the computer needs to communicate with the Cd/DVD writer throughout the registration process. I been rebooted the computer before each record (as a precaution), but today, even this does not ensure a registration succeeded, and a blank disc is ruined.

Unless one of you guys come up with a solution, maybe I have no choice but to throw this computer in the trash and buy a new iMAC. If that seems extreme, I must report that I received my most recent iMac for free. In the last months of Apple Care on my previous iMac, Apple has decided to give me a brand new iMac, because of repeated problems and overheating on the previous Mac.

Reset the management system (SCM) controller on your Mac - Apple Support

Tags: Mac

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