Oki Microline 520 Service Handbook page 189

Procedure
To return the printer to Full Operation, you must modify the menu.
CAUTION:
Determine the preference of the end user regarding this feature. If the printer is on a
network, do not reset this item without discussing the change with the network supervisor.
To access the menu when the printer is set to Limited Operation, follow this procedure.
1. Verify that continuous feed paper is installed.
2. Verify that the ribbon is correctly installed.
3. Verify that the width of the installed paper matches the paper width menu setting.
CAUTION:
If the Menu is set for wide paper, and narrow paper is used, the printhead will print on
the platen. This could damage / destroy the printhead, platen, and ribbon.
4. Power off the printer.
5. Press and hold the SEL switch while powering on the printer.
6. The MENU lamp will light. If the printer was selected, the SELECT lamp will light.
When in Menu Mode, the functions printed below the operator panel switches are active.
7. Press GROUP until Set-Up prints.
8. Press ITEM until Operator Panel Function prints.
9. Press SET until FULL OPERATION prints.
10. Press EXIT to save the change and exit Menu Mode.
Microline 520/521 Service Handbook
P/N 59257803
3 - 77 Maintenance