HP LaserJet 3015 - Manual (Page 41)

To print on multiple envelopes
Use only envelopes that are recommended for laser printers. See Device media specifications
for more information.
Note Use the priority input slot for printing on one envelope. Use the media input tray for printing on
multiple envelopes.
1. Open the media input tray and remove any media.
2. Before loading the envelopes, slide the media guides outward so that they are slightly
wider than the envelopes.
3. If the envelopes have a flap that folds along the long edge, place the flap-fold edge to the
left, with the side to be printed on facing up. If the envelopes have a flap that folds along
the short edge, feed that edge into the device first, with the side to be printed on facing
up. Stack up to 15 envelopes.
4. Adjust the media guides to the length and width of the envelopes.
ENWW Printing on envelopes 31