HP / HP Smart Tank 7602
HP Smart Tank 7602 error E1
Paper Width/Size Mismatch
The loaded paper dimensions do not match the print job settings.
Recommended solution
Cancel the active print job on your computer or mobile device. Adjust the paper guides in the input tray so they sit flush against the paper stack without bending it. On your computer, open Print Settings, and ensure "Paper Size" matches the exact paper size in the tray.