You can delete the printer's internal memory data, such as downloaded fonts and macro print jobs.
You can also perform this function from the printer’s control panel.
Settings > General Settings > System Administration > Clear Internal Memory Data > PDL Font, Macro, and Working Area
Enter the printer's IP address into a browser to access Web Config.
Enter the printer's IP address from a computer that is connected to the same network as the printer.
You can check the IP address of the printer from the following menu.
Settings > General Settings > Network Settings > (Standard) > Network Status > Wired LAN/Wi-Fi Status
Enter the administrator password to log in as an administrator.
Select the following menu.
Device Management tab > Clear Internal Memory Data
Click Delete for PDL Font, Macro, and Working Area.