This troubleshooting applies to HP MFP Color Copier E78228, E78223 and E87650 models.
Troubleshooting Timeline Tag :
0:03 Step 1 - Follow the instructions on the display screen monitor.
0:13 Step 2 - Open side door J or E ( depending paper jam location ).
0:32 Step 3 - Open side door D1 ( depending paper jam location ).
0:57 Step 4 - Double check everything OK and close all the side door.