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Lexmark MX521

Lexmark MX521

Using PET with the address book exceeding 1000 entries causes security settings error

Issue Description:

When using the Printer Enrollment Tool (PET) the error message “The printer’s security settings may be preventing the Printer Configuration Agent from installing” if Address Book already has 1000 entries.


This issue occurs because the Address Book is full prior to attempting enrollment. If the maximum number of 1000 contacts have been saved on the device, the Printer Agent’s Lexmark_PCA_User account cannot be created, and the device enrollment will fail.

To resolve this issue and avoid getting the error message, remove at least one contact from the Address Book.

Still Need Help?

Have the following available when calling Lexmark Technical Support;

  • Printer model(s)

  • Printer serial number


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