Error message 63:20 "A potential problem has been detected. You can continue to use the printer, but with limited performance in some features." After pressing OK: the initializing process stucks/freezes at 1% or 18% not further.
Switching power on/off rear button, unplug power cords is not solving the problem.
Can anyone help?
Thanks in advance.
#1 according to this error, you can try update the firmware with usb drive. below is the link to latest firmware
Problem solved: replacement of network card.
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