HP 2070N - Manual (Page 16)

About this printer
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1
7
Lift up the support flap to prevent paper from sliding off
the face-down output tray.
Note
If you choose not to lift up the output tray support flap, we
recommend that you remove printed pages immediately after
they come out of the printer.
8
Send the print data to the printer.
Note
If you print on transparencies, remove each transparency
immediately. Stacking the printed transparencies may cause
a paper jam or the transparency to curl.