HP Designjet T520 Series - 12 Troubleshooting paper issues; The paper cannot be loaded successfully; The paper type is not in the driver; The printer printed on the wrong paper type

Rear view (T520)
1. Roll cover
2. Communication ports
3. Power socket
4. Multi-sheet tray
Rear view (T120)
1. Blue stop
2. Spindle
3. Paper roll
6 Chapter 1 Introduction ENWW