Dell B5465dnf Mono Laser Printer MFP - Manual (Page 69)

One
‑sided printing
Two
‑sided (duplex) printing
ABC
ABC
• Make sure the paper is below the maximum paper fill indicator.
Warning—Potential Damage: Overfilling the tray can cause paper jams.
5 Insert the tray.
Note: Press the paper stack down while inserting the tray.
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