HP Deskjet 3420 Color Inkjet Printer - Manual (Page 54)

Follow each of these steps until the paper jam is cleared.
1. Remove the paper from the paper tray.
2. If you are printing labels, verify that a label did not become detached from the
label sheet while passing through the printer.
3. Remove the Rear Access Door. Press the handle to the right, then pull it out
from the printer and remove.
4. Remove the paper jam, then replace the Rear Access Door.
5. Reload paper into the paper tray.
6. Print the document.
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paper problems
paper jam
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