HP Color LaserJet CP3520 Printer Series - Manual (Page 167)

If it does not print, turn the product off, and then uninstall and reinstall the print server card to ensure
that it is completely seated in the slot.
8. Perform one of these steps:
● Choose the correct port. See the computer or operating system documentation for
instructions.
● Reinstall the software, choosing the network installation this time.
ENWW Replace supplies 155