HP Deskjet 3420 Color Inkjet Printer - Manual (Page 26)

envelopes
printing guidelines
●
Never place more than 10 envelopes in the In tray at one time.
●
Avoid using envelopes that have clasps or windows.
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Avoid using envelopes that are shiny or embossed; envelopes with thick,
irregular, or curled edges; or envelopes that are wrinkled, torn, or otherwise
damaged.
●
Align the envelope edges before inserting them in the paper tray.
preparing to print
1. Unfold the paper tray.
2. Slide the paper guide to the left.
3. Place no more than 10 envelopes — with the flap side on the left and facing up
— in the paper tray.
4. Push the envelopes forward until they stop.
5. Slide the paper guide firmly against the edge of the envelopes.
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