I guess you mean the c350 is not printing while Windows said the job has been sent?
If so, it may have changed IP Address from the time you first install the Printer on Windows. Check the Ports setting of the c350 printer! e.g.
Network Pritners should have Static IP address or at least a reserved DHCP IP Address. Logon to your Router, check the MAC Address of the c350 and reserve/assign it a IP Address near the end of the DHCP range. Save the Router configuration and power cycle the c350. Confirm IP Address changed to the reserved IP.
Then you have to change all the PC's Printer Configuration of the c350's Port to update the reserved/assigned IP. Or remove the c350 from Printers and Faxes, then run the printer setup software again.
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