asked Feb 7, 2019 at 7:35am
Hp HP LaserJet Pro 400 M425

ADF Door Open

We have 1 M425dn showing "ADF Door Open". We have 1 M425dn showing "ADF Paper Jam". Swapping the ADF / Scanner Assembly and Formatter from one to the other has no effect. Logically, this suggests no fault with these parts but with the printer. The error remains with the printer and does not follow the parts. Is there some kind of reset to clear these errors or am I overlooking another circuit board that could influence these errors?