Engine resets
Engine test page
1. Turn the product on.
2. Use a fine-point tool, (for example a precision-slotted screwdriver with a 1 mm (0.04 in) blade width)
to press the engine test button.
NOTE: Access the engine test button through a hole in the right-side cover.
3. An engine test page (horizontal lines in each of the print cartridge colors) prints.
Figure 7-9 Engine test button location
Cold reset
The traditional cold reset function found in other HP LaserJet products is not supported for this product.
The equivalent function is the Restore defaults option in the HP ToolboxFX or the Service menu.
A cold reset unlocks menus that have been previously locked and resets all control-panel menu items
to the factory defaults. It does not reset the serial number and the page counts.
NOTE: Before restoring defaults, print a menu structure report and a configuration page. Use the
information on these pages to reset customer-specific settings.
CAUTION: All HP Jetdirect settings are also reset. Be sure to print a configuration page before
restoring defaults. Make note of the IP address that is listed on the Jetdirect configuration page. You
might need to restore the IP address after performing a cold reset.
224 Chapter 7 Problem solve ENWW
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