HP 3500 - Manual (Page 95)

9. If prompted by a message at the control panel, press .
Note If total sheets exceed the Tray 1 capacity for manual duplex jobs, you must repeat steps 6
and 7 each time paper is inserted until the duplexing job is complete. Feed the top part of the
stack first.
10. If the print job does not print, go back to the printer and press CONTINUE.
ENWW 2-sided (duplex) printing 83