Hello, and thank you for choosing JA for your support needs. Please follow the steps below:
Resetting All Printer Default Settings (NVRAM)
Resetting the NVRAM resets all printer values including network, printer
setup, job defaults, color, margin, and paper calibrations.
From the Main Menu, highlight Support, and press OK.
Highlight Service Tools Menu and press OK.
Reset NVRAM is displayed, press OK.
Highlight Reset NVRAM and Reset Printer NOW and press OK to reset
all the settings to default.