Preparing to print
1. Raise the printer cover.
2. Slide the paper guide to the left.
3. Raise the Out tray.
4. Place the envelopes, with the side to be printed on facing down and the flap to
the left, in the In tray and to the right. Push the envelopes into the printer until
they stop.
5. Lower the Out tray.
6. Slide the paper guide firmly against the edge of the envelopes.
7. Lower the printer cover.
HP Deskjet 3840 series printer
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