MicroNet Technology SP755D - Manual (Page 81)

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8.4.3 SMB
You can enable/disable the SMB protocol from here. If SMB is enabled,
enter the “SMB Group Name” to specify the SMB group that this print
server belongs to. All PC should join the same group before they can use
this print server by SMB protocol.
“Pass Job When Error Occurred” is for you to set the interval time for
bypassing the current printing job in order to avoid the printing job is not
printed completely while the printer is interrupted unexpectedly because of
paper out or off line.