HP Color LaserJet 4650 Printer series - Manual (Page 99)

4. Adjust the side guides so that they lightly touch the paper stack but do not bend the
paper.
Note Make sure the paper fits under the tabs on the guides and not above the load level indicators.
Printing envelopes from Tray 1
Many types of envelopes can be printed from Tray 1. Up to 20 envelopes can be stacked in
the tray. Printing performance depends on the construction of the envelope.
In the software, set margins at least 15 mm (0.6 inches) from the edge of the envelope.
CAUTION Envelopes with clasps, snaps, windows, coated linings, exposed self-stick adhesives, or
other synthetic materials can severely damage the printer. To avoid jams and possible
printer damage, never try to print on both sides of an envelope. Before you load envelopes,
make sure they are flat, undamaged, and not stuck together. Do not use envelopes with
pressure-sensitive adhesive.
To load envelopes into Tray 1
CAUTION To avoid jams, do not remove or insert envelopes during printing.
1. Open Tray 1.
ENWW Configuring input trays 85