This article mainly introduces the HP Color LaserJet 5550 printer Series how to unlock the locked panel menu.
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Unlock the 5550 printer to its factory value. The following is the method to restore the factory value:
Turn off the printer. Then turn on the machine. When two lines of "*" appear on the printer screen, quickly press the √ key until all three lights are on. Release the √ key, and the panel displays select In language, press the arrow to select cold reset, and press the √ key. The printer starts to restore the factory value, and automatically restarts the printer to return to the ready state.
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Use the webjet admin software to unlock. NOTE: This method is only applicable to network connection, not parallel connection.
The specific methods are as follows:
Download the webjet admin 8.1 software from the hp website and install it. Run this software in the open interface: Device Management - Find 5550 printer configuration security control panel access unlock ok.
