HP LaserJet 4250 - Manual (Page 75)

4. Adjust the guides to touch the envelopes without bending them.
5. Lower the envelope weight onto the envelopes.
6. To reduce curl and jams, open the rear output bin to use the straight-through paper path.
NOTE Select the envelope size in one of these locations, trying them in this order: in the program,
in the printer driver, or on the Paper Handling menu at the printer control panel. See
Paper
Handling menu .
ENWW Printing envelopes 63