HP Deskjet 6840 Color Inkjet Printer - Manual (Page 11)

4. Print the photo .
Postcards
Follow these steps to use the photo/envelope feeder to print a single postcard:
1. Insert the postcard into the photo/envelope feeder with the side to be printed
on facing down.
2. Gently push the postcard into the photo/envelope feeder as far as it will go
without bending.
3. Slide the photo/envelope feeder forward as far as it will go.
4. Print the postcard .
HP Deskjet 6800 series printer
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