Your specific model number is or MP 5055SP .

: Print a configuration page from the operation panel to check your current firmware version.

Network (WIM) update is possible but riskier; USB method is preferred for reliability.

What or specific issue prompted this update?

: Run the tool on a PC connected to the same network as the MP 5055 .

Plug the machine back in and turn on the main power switch.

For machines connected to the internet, this is the easiest method.