HP 3500 - Manual (Page 83)

4. Load up to 10 envelopes in the center of Tray 1 with the side to be printed on facing up,
with the stamp area closest to the printer, and the short edge toward the printer. Slide
the envelopes into the printer as far as they will go without forcing them.
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5. Adjust the guides to touch the envelope stack without bending the envelopes. Make
sure the envelopes fit under the tabs on the guides.
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Printing envelopes
1. If Tray 1 is configured for a specific size, use the printer control panel to set the paper
size for Tray 1 to match the size envelope you are printing.
2. Specify Tray 1 or select the paper source by size in the printer driver.
3. If your software does not automatically format an envelope, specify Landscape for page
orientation in your software application or printer driver. Use the guidelines in the table
that follows to set margins for return and destination addresses on Commercial #10 or
DL envelopes.
Note For envelopes of other sizes, adjust the margin settings appropriately.
4. Select Print from the software application or printer driver.
Address type Left margin Top margin
Return 15 mm (0.6 inches) 15 mm (0.6 inches)
Destination 102 mm (4.0 inches) 51 mm (2.0 inches)
ENWW Configuring trays 71