Oki B840n User Manual page 51

8. Set the paper one page at a time in the Multi Purpose Tray with the printed side
facing down and the top of the page facing into the printer. Ensure that the paper is
gripped in place.
9. Press the Online button. The remaining pages of your document print on the blank
side of the paper, one sheet at a time as you feed it into the Multi Purpose Tray.
2-sided printing > 51