HP 8550 Service Manual - Page 65

Note Navigating service mode screens The screens are arranged in three layers: l initial screen (see figure 10 on page 61) l Level 1/Level 2 screen l Level 3 screen Select one of the two major items on the initial screen (either COPIER or FEEDER) by pressing the item. Feeder is available only when an optional ADF is attached. After you press one of the major items, the Level 1/Level 2 screen appears on the display. Figure 12 shows the Level 1/Level 2 screen that appears after COPIER is selected from the initial screen. Figure 12. Example of a Level 1/Level 2 item screen l Level 1 items are at the top of the screen. To select a Level 1 item, press an item shown across the top of the screen. l To select a Level 2 item, select an item shown as white text on a black background. EN Service mode 63