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HP LaserJet Enterprise, HP PageWide Enterprise - 99.09.64 Error

When a 99.09.64 Disk Non-Functional or a 99.09.64 Disk Malfunction error is displayed on the control panel, it indicates a fatal issue with the disk drive installed in the printer.
  1. Check for proper installation of the hard disk. Slide the Formatter board out and ensure the hard disk is making a good connection.
    Refer to your printer User Guide or search for a support document for instructions on removing the HDD (hard disk drive).
  2. If the error persists, the disk drive needs to be replaced. Contact a local authorized HP reseller to purchase a new disk drive.