When printing from the MP Feeder an Oki B721dn printer may prompt club staff to press the Online button to initiate each print.
This issue is an issue specifically associated with printing from the MP Feeder.
To resolve this issues navigate to the Printing Preferences via the Printers & Scanners section.
Select the Paper Feed Options button and deselect the Use MP tray as manual feed option.
Select Ok and Apply to confirm the driver changes. The printer should now print from the MP Feeder without prompting staff to press the Online button.