HP LaserJet 4000 Series - Display

7-12 Troubleshooting
Figure 7-2 Location of the Engine Test Button
Printing an Engine Test
To print an engine test, use a non-metallic object (such as a pencil) to
press the engine test button. A single test page with vertical lines
prints. To print multiple test pages, hold down the engine test button.
Display
The Control Panel should display
READY
,
OFFLINE
, or
POWERSAVE ON
.
For information about errors displayed, access the Event Log (see
page 7-13). If the display is blank, see page 7-7.
For more information on the LaserJet 4000 / 4050 Visit www.PrinterSupplies.com 800-551-1943