HP Officejet Pro X551 Printer series - Manual (Page 20)

Front view (X551 Series)
1
7
8 2
4
3
5
6
1 Control panel
2 Output bin door
3 Output bin
4 Output bin extension
5 Tray 2 (Main paper tray)
6 On/Off button
7 Ink cartridge door
8 USB 2.0 Host port that accepts USB storage devices for Plug and Print USB Drive printing
6 Chapter 1 Product basics ENWW