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HP LaserJet 4000 - Display

HP LaserJet 4000
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7-12 Troubleshooting
EN
Figure 7-3 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.

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