Oki LP-1040 Maintenance Manual page 41

Press the OK button to close the window and start the upgrade process.
(6) Press the OK button again to confirm.
The state of the upgrade process is displayed with a progress bar. The message Upgrade
complete. Restart the printer. is displayed when the upgrade is complete.
(7) Hold the POWER button pressed for 5 seconds to turn the printer off, and then remove the
USB drive from the USB port on the ARC board.
(8) Turn the Printer on.
(9) Use the Print System Settings function to print the firmware version and check that it has
been upgraded correctly.
Chapter 1 Maintenance Work Process Overview
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