HP Scanjet Enterprise 7000n , HP Color LaserJet CP5525, HP Color LaserJet CM4540 MFP and HP LaserJet M4555 MFP - HP Imaging and Printing Security Best Practices

Chapter 3 HP LaserJet and Color LaserJet MFP Security Checklist 18
HP & 3
rd
Most of the recommendations in the next chapter of this checklist can be implemented without
having a negative impact on HP & third party solutions you may utilize in your environment without
causing them to fail. However, there are some settings that have been known to cause problems.
When setting up a solution in your environment you want to test the following:
Party Solutions
• Disabling EWS remote access (port 80, port 443 etc)
• Disabling Command load and execute
If your previously working solution no longer works revert to your original settings, or if you are
unable to get your solution working enable them if disabled by default. The reason for this is many
solutions require specific ports to communicate with the printer, and may need to load a piece of
their solution on boot of the print device.
Also, be sure you do not implement a Secure Storage Erase as a disk cleaning practice. This type
of erase will wipe everything off your existing hard drive including any HP or 3
rd
There are two suggestions in the next chapter that should only be implemented after a solution has
been installed. They are:
party solution you
have installed.
• Configure a PJL password
• Disable PJL file system access
Once installed, you can test w whether implementing these recommendations impacts your
particular solution. If your solution is impacted, skip these recommendations in the next chapter. If
you choose to implement these recommendations and there is an upgrade or new drop of the
solution, you will need to re-enable PJL file system access and set the PJL password to blank to
install the solution. After the upgrade you will need to test if the new version of the solution is
adversely affected by these settings.