The patch should not cause an issue, but if your IT went ahead and disabled SMB1 as a preventative measure, you need to set up an FTP server, the printer is considered Legacy and it will not be getting SMB2 compatibility
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Network scanning to the shared folder was set up on the WC5330 and work well for years, but last time (a week or two) just give a login error. I suppose that this problem appears after SMB patch MS17-10 was applied. Any solution?