HP LaserJet Pro 4001dw Monochrome Wireless Printer - Manual (Page 78)

1. Slowly pull the jammed paper out of the printer.
2. Adjust the paper guides to the correct paper size, then .reload paper into the tray.
3. Ensure the tray is not overfilled. Paper should be below the 3 triangles in the following image.
4. Ensure the type and quality of the paper being used meets the HP specifications for the printer.
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