Troubleshooting- 380 -6 Raise the blue lever inside this machine to lock, and close the cover.7 Insert the paper cassette into the main unit from slightly above and install it back to its originalposition.If you return the paper cassette to the main unit by force, the paper stopper may shift.8 Close the rear cover.For the error code 3801 Press the front cover open button on the side of this machine, and then open the front covertoward you.

Oki COREFIDO B822dn User Manual