HP LaserJet 4610n - Manual (Page 89)

To load envelopes into Tray 1
CAUTION To avoid jams, do not remove or insert envelopes during printing.
1. Open Tray 1.
2. Load up to 20 envelopes in the center of Tray 1 with the side to be printed facing down
and the postage end toward the printer. Slide the envelopes into the printer as far as
they will go without forcing them.
3. Adjust the guides to touch the envelope stack without bending the envelopes. Make sure
the envelopes fit under the tabs on the guides.
ENWW Configuring input trays 77