To clear this message and return to user mode, do the following:

Turn the power off, wait ten seconds and turn the power back on. Wait for the printer to boot up and display ‘MFG MODE’.

Hit the ‘X’ button, then hit the Back arrow twice, then hit the ‘X’ button, then hit the Back arrow twice.

Hit the power button. The display should now show ‘READY’.

Hit the ‘X’ button, then hit the Back arrow twice, then hit the ‘X’ button, then hit the Back arrow twice.

The display should now show ‘Engineering Menu / Underware Menu’. Hit the ‘OK’ button.

The display should now show ‘boot code menu’. Hit the ‘OK’ button.

Hit the ‘Right Arrow’ button so that ‘set to user mode’ is displayed. Hit the ‘OK’ button.

Hit the power button to shut the printer off.

Wait ten seconds and turn the printer back on. It should now boot to ‘READY’; you are now in user mode.